GOST R 55045-2012

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gost-r-55045-2012.pdf (585.36 KiB)
ГОСТ Р 55045-2012

GOST R 55045−2012 Technical diagnostics. Acoustic emission diagnostics. Terms, definitions and symbols

GOST R 55045−2012
Group Т00

NATIONAL STANDARD OF THE RUSSIAN FEDERATION

Technical diagnostics

ACOUSTIC EMISSION DIAGNOSTICS

Terms, definitions and symbols

Technical diagnostics. Acoustic emission diagnostic. Terms, definitions and symbols

OKS 01.040.19*

_______________
* ICS 8−2013 GOST R 55045−2012 is with ACS 01.040.19, 77.040.10. -
Note the manufacturer’s database.

Date of introduction 2014−01−01

Preface

The objectives and principles of standardization in the Russian Federation established by the Federal law of 27 December 2002 N 184-FZ «On technical regulation», and rules for the application of national standards of the Russian Federation — GOST R 1.0−2004 «Standardization in the Russian Federation. The main provisions"
________________
* On the territory of the Russian Federation the document is not valid. Valid GOST R 1.0−2012. — Note the manufacturer’s database.

Data on standard

1 DEVELOPED by Autonomous non-commercial organization «Scientific-research center of control and diagnostics of technical systems» (ANO «nits KD»), Closed joint stock company Scientific technical center «Industrial Safety» (JSC STC «Industrial Safety»), the Samara branch of open joint stock company «Orgenergoneft» (Samara branch of OAO «Orgenergoneft»), Closed joint stock company «GIAP-Distant» (JSC «GIAP-Distant»), a limited liability company «INTERUNIS» (LLC «INTERUNIS»), Non-state educational establishment Training center «SAMARA» (NOU UTS «SAMARA»), Institute of nuclear reactors Russian research centre «Kurchatov Institute» (Iyar RRC «KI»), an Open joint stock company «experimental design Bureau of machine building named after I. I. Afrikantov» (JSC «Afrikantov OKBM»)

2 SUBMITTED by the Technical Committee for standardization TC 132 «Technical diagnostics"

3 APPROVED AND put INTO EFFECT by the Federal Agency for technical regulation and Metrology dated November 8, 2012 N 700th St

4 INTRODUCED FOR THE FIRST TIME

Information about the changes to this standard is published in the annually issued reference index «National standards», and the text changes and amendments — in monthly published information index «National standards». In case of revision (replacement) or cancellation of this standard a notification will be published in a monthly information index «National standards». Relevant information, notification and lyrics are also posted in the information system of General use — on the official website of the Federal Agency for technical regulation and Metrology on the Internet

Introduction

Set out in the standard terms reflect concepts in the field of acoustic emission diagnostics.

The need for the development of this standard arose from the fact that the existing standard 27655 not fully reflect the terminology in the field of acoustic emission, which is associated with the emergence in recent years of new approaches in the field of acoustic emission diagnostics.

In addition, many terms given in GOST R ISO 12716, do not comply with domestic practice, the use of acoustic emission method.

1 Scope

This standard specifies terms and definitions, and letter symbols of the basic concepts in the field of acoustic emission in technical diagnostics.

For each concept has a single standardized term is given in bold. For some of the terms are given their letter designations.

Given the definition, you can optionally change by entering into derivative signs revealing the meaning of used terms, pointing to objects in the volume defined concepts. Changes must not violate the scope and content of concepts defined in this standard.

The standard lists the standardized equivalent term in English.

At the end of the standard is an alphabetical indexes of terms in Russian and English.

2 Terms and definitions


2.1 Physical basis. General provisions
2.1.1 acoustic emission; AE: Radiation (diagnosis, control, testing) acoustic waves under the influence of the load, or the influence of other factors		acoustic emission
2.1.2 acoustic emission of materials: Acoustic emission, caused by changes in the structure of the material of the object		acoustic emission of material
2.1.3 acoustic emission leakage: Acoustic emission, caused by hydrodynamic and (or) the aerodynamic phenomena during the flow of liquid or gas through an inconsistent object		acoustic emission leak detection of
2.1.4 friction acoustic emission: Acoustic emission caused by friction of surfaces of solids		acoustic emission of friction
2.1.5 acoustic emission method of diagnosis;method of AED: Method of diagnosis based on the analysis of parameters of AE waves		acoustic emission method
2.1.6 acoustic-ultrasonic method: Method of diagnosis that uses the influence of defects on the parameters entered in the object acoustic waves based on the analysis of their parameters after propagation in the object		the acousto-ultrasonics method
2.1.7 acoustic emission diagnostics:Definition of a technical condition of object with the purpose of the safety assessment and prediction resource using the AED		acoustic emission diagnostic
2.1.8 acoustic emission condition monitoring: Control object with the use of AE signals with the aim of detection of AE sources, estimating their parameters and the prevention of the destruction		acoustic emission testing
2.1.9 acoustic emission diagnostic monitoring: assessment of the technical state of the object in a continuous or periodic mode, using the AE equipment		acoustic emission monitoring
2.1.10 the source of acoustic emission; acoustic emission source: Scope of the object of diagnosis, which converts any form of energy into acoustic energy AE		source of acoustic emission
2.1.11 signal of acoustic emission; AE signal: Stochastic physical quantity of the acoustic nature, containing information about the AE source		acoustic emission signal
2.1.11.1 acoustic signal AE: AE source Generated acoustic wave, the parameters of which carry information about the AE source and the state of the object		acoustic signal of AE
2.1.11.2 electrical AE signal: the Signal AE at the output of the inverter AE		electric signal of AE
2.1.12 discrete acoustic emission: Acoustic emission, acoustic and/or electrical signals which consists of distinct pulses		burst acoustic emission
2.1.13 continuous acoustic emission:Acoustic emission, acoustic and/or electrical signals which represent a continuous process		continuous acoustic emission
2.1.14 the mechanism of generation of acoustic emission:a Combination of physical and/or chemical processes occurring in the AE source		mechanism of acoustic emission generation
2.1.15 disturbance acoustic emission: the Acoustic signal generated by the source, the identification of which is not included in the objectives of the study the object of acoustic emission method of diagnosis		acoustic emission interference
2.1.16 background noise: Acoustic signal occurring in an object under the influence of environmental noise		background noise
2.1.17 noise of the Converter of acoustic emission: an electrical signal arising at the output of the AE transducers due to thermal fluctuations in the material Converter		sensor’s noise
2.2 the acoustic emission Signal and its parameters
2.2.1 emission signal acoustic emission:Excess electrical AE signal threshold apparatus		count of acoustic emission signal
2.2.2 summary account of acoustic emission; the Number of registered emission of an electrical signal AE at the time of registration		acoustic emission count
2.2.3 the count rate of acoustic emission; C: Number of recorded emission signal AE per unit of time		acoustic emission count rate
2.2.4 event acoustic emission: Every single action (trigger) of the AE source		acoustic emission event
2.2.5 impulse acoustic emission: a View of the AE signal of finite duration, the value of which is negligible outside of the pulse duration		acoustic emission impulse
2.2.6 the number of pulses of acoustic emission; the Number of registered AE pulses		acoustic emission burst count
2.2.7 activity of acoustic emission; With: the Number of registered AE events per unit time		acoustic emission event rate
2.2.8 the intensity of acoustic emission: time-Average energy of the acoustic waves passing through unit area perpendicular to the direction of wave propagation, per unit time.		intensity of AE
Note — the intensity of the acoustic emission is measured in j/mwith
2.2.9 energy of acoustic emission; : an Acoustic energy source AE carried by the waves generated in the object.		energy of AE
Note — the Energy of acoustic emission is measured in joules
2.2.10 energy of the acoustic emission source; : the Acoustic energy produced at the site of the local restructuring of the material.		energy of AE source
Note — the Energy source of acoustic emission is measured in joules
2.2.11 the amplitude of the signal of acoustic emission; the Maximum value of the signal AE.		AE signal amplitude
Note — the amplitude of the acoustic emission signal measured in
2.2.12 the level of the signal of acoustic emission; : mean square value of the AE signal, measured in dB relative to 1 µv		signal level
2.2.13 acoustic emission decibels; : a Logarithmic scale of relative values of the AE signals in which the zero level is set equal to 1 µv		acoustic-emission decibels
2.2.14 the amplitude distribution of acoustic emission pulses: Schedule, linking the number of registered AE pulses with their amplitudes		impulse amplitude distribution
2.2.15 cumulative amplitude distribution of acoustic emission pulses: Schedule, linking the number of registered AE pulses exceeding a randomly selected value of the signal with amplitude		cumulative amplitude distribution
2.2.16 the differential amplitude distribution of acoustic emission pulses:Schedule, linking the number of registered AE pulses with amplitude values between the prisoners and .		differential amplitude distribution
Note — a Graph of differential amplitude distribution is derived from the cumulative amplitude distribution
2.2.17 the beginning of acoustic emission signal: the time when visual or instrumental registration of the AE signal		AE signal start
2.2.18 the end of acoustic emission signal: the phase of the signal AE corresponding to the last crossing the threshold, determined visually or instrumentally		AE signal end
2.2.19 the rise time of the pulse acoustic emission: the time interval between the beginning of registration of the AE pulse and the moment at which the pulse reaches the maximum value		AE signal rise time
2.2.20 fall time of the pulse acoustic emission:the time Interval between the moment at which the pulse reaches the maximum value, and the end of registration		AE impulse decay time
2.2.21 the duration of the pulse acoustic emission:the time Interval between the start and end of registration of the AE pulse.		AE impulse duration
Note — the Measured value, rise time, fall time and pulse duration depend on amplification equipment, bandwidth, threshold, hardware, installation method PAE (see 2.4.1), methods of measuring the maximum value and parameters of acoustic emission channel
2.2.22 dead time: The length of time necessary for signal processing equipment AE (see 2.4.4), during which it does not detect other signals		dead time
2.2.23 the difference in time of arrival of the signal of acoustic emission; sun: time interval between the moments of signal registration of the AE -m and -m transducers of the antenna array		interval arrival time
2.2.24 the effective propagation velocity of the acoustic pulse: the Speed of propagation of acoustic pulse calculated from the measured values of the distance between the simulator and transducer of acoustic emission and time of emission and reception of the pulse simulator		effective velocity
2.2.25 control zone: part of the object that is subjected to acoustic emission diagnostics		examination zone
2.2.26 location of the source of acoustic emission;location of AE source: Determination of AE source location in the object		AE source location
2.2.26.1 linear location: determining the position of the AE source (or its projection) on the line connecting the two locations used for PAE		linear location
2.2.26.2 planar location: Determination of AE source location on the surface of the object.		planar location
Note — Used three or more PAE
2.2.26.3 three-dimensional location Determination of AE source location in the volume of the object.		3D location
Note — Used five or more PAE
2.2.26.4 adaptive location: the source location of the AE using the AE simulator by an iterative approximation simulator to the source according to the testimony of the AE equipment.		adaptive location
Note — Used three or more PAE
2.2.27 . location: Determination of the area of location of AE source on the object without determining its origin.		zone location
Note — you can use different methods of conditioning locations using the parameters AE: account total, energy, number of pulses and other
2.2.27.1 . location of the acoustic emission parameters in channels: Conditioning location at which the AE source is considered to be located in the area of the PAE, is included in the channel, registered maximum values of AE.		independent channel zone location
Note — See. note the term 2.2.27
2.2.27.2 conditioning location registration signal, the first channel: the of location Methods that use information about the registration of the AE signal, the first channel of the group		first-hit zone location
2.2.27.3 conditioning location in the sequence of check pulses in the channels: the Methodology of location at which the location of the AE source is determined by the sequence of check pulses in the channels		arrival sequence zone location
2.2.28 location of sources of continuous acoustic emission: the Method of determining the location of the signal source of continuous AE.		continuous AE signal location
Note — For location of continuous AE sources using two methods: — methods based on the evaluation of signal attenuation; — methods based on calculating the correlation function
2.2.29 indication of events of acoustic emission:Definition of points on the object (or the scheme object observed on the display screen) corresponding to the registration of the AE event and the calculated coordinates of the event source of acoustic emission		indication of AE event
2.2.30 location cluster: Area of the object, in which the indication of acoustic emission events related to a single AE source		cluster location
2.2.31 the accuracy of the location: the Value determined by comparing the true location of the AE source with the measured value		location accuracy
2.2.32 generalized loading parameter: Physical quantity that characterizes the impact on the object, changing which changes mechanical stress (deformation) in the object, and the resulting AE		generalized parameter of stimulation
2.2.33 loading: the App loads in the form of force, pressure, heat, and other impacts to the object with the purpose of intensification of AE sources		stimulation
2.2.34 parametric acoustic emission activity: Characteristics of the AE source, which determines the dependence of any parameter of AE from the loading parameter and/or time		parametric AE activity
2.3 Classification and evaluation criteria for acoustic emission sources
2.3.1 classification of acoustic emission sources: a Division of AE sources into classes (types, groups) for various values of the set parameters or set of parameters		classification of AE sources
2.3.2 acoustic emission: a Group of parameters of AE signals obtained as a result of tests of a particular object (material) with a specific AE equipment and under specified conditions		acoustic emission signature
2.3.3 criteria for the classification of acoustic emission sources: the Conditions under which the AE source belongs to the corresponding class (type, type, group)		criterions of classification of AE sources
2.3.4 parametric criterion of activity of acoustic emission sources: a Criterion to carry out a quantitative classification of AE signals based on the values of their parameters that you defined when you installed measurement conditions		criterions of AE sources parametric activity
2.3.5 parameter classification; : the exponent in the formula describing the dependence of the aggregate accounts of acoustic emission from the stress intensity factor .		classification parameter
Note — a constant reflecting the conditions under which the measured AE
2.3.6 passive acoustic emission source:Was the source of the AE, not AE emits a signal in the observation time interval		nonactive AE source
2.3.7 active source of acoustic emission:acoustic emission Source that emits the AE signal in the observation time interval, the parameter of classification which does not exceed 1		active AE source
2.3.8 critically active source of acoustic emission: acoustic emission Source, the classification parameter which takes value in the range from 1 to 6 ()		critically active source AE
2.3.9 catastrophically active source of acoustic emission: acoustic emission Source, the parameter of classification is more than 6		catastrophic active AE source
2.3.10 the effect of the Kaiser: the Decrease in the level of AE signals until the complete cessation of their registration in repeated loading cycles until the level exceeded the pre-applied load		Kaiser effect
2.3.11 effect felicity: Registration of acoustic emission during mechanical stresses, lower values for the pre-applied load of		Felicity effect
2.3.12 the felicity ratio: the Ratio of the magnitude of the applied load at which AE is recorded, and the maximum value of the load in the previous loading cycle		Felicity ratio
2.3.13 the ultimate state of the object according to the testimony of acoustic emission: the state of the object identified by the indications of acoustic emission, in which its continued use is impractical or is unacceptable		maximum permissible condition of the object
2.3.14 acoustic emission criterion of the limiting state of the object: the Value or set of values of parameters of acoustic emission and loading parameters, corresponding to the limit state of the object specified in normative and technical documentation		AE criterion of maximum permissible condition of the object
2.3.15 additional operation time according to indications of acoustic emission: the amount of time from the date of exhaustion of the resource assigned to the moment of reaching the limit state of the object specified in the parameters AE		additional time of operation under the indications of AE
2.4 Technical devices
2.4.1 transducer acoustic emission; PAE: a Device in which acoustic the acoustic emission signal is converted into an electrical signal		acoustic emission sensor, transducer
2.4.2 antenna acoustic emission: a Group located on the object PAE, whose signals are processed together		array
2.4.3 contact environment: the Environment is used to enhance acoustic transmission through the interface between the object-PAE		Couplan
2.4.4 acoustic emission equipment; equipment AE: Devices capable of receiving, processing, presentation and registration of AE signals		instrumentation
2.4.5 threshold of the equipment: Fixed or adjustable voltage given to the input of acoustic emission equipment, above which the AE signal is detected, recorded and/or processed by the apparatus and below which it is impossible		instrumentation threshold
2.4.5.1 fixed threshold of the equipment: the AE equipment Threshold constant value set by the operator at a certain level relative to the noise level		fixed threshold
2.4.5.2 floating equipment threshold: the threshold of the AE equipment, which automatically varies to maintain it at a certain level relative to the noise level		floating threshold
2.4.5.3 the programmable threshold of the instrument: the threshold of the AE equipment, the value of which varies according to a given algorithm, changing it at a certain level relative to the noise level		programmed threshold
2.4.6 limiting sensitivity of the instrument:the Sensitivity of AE equipment corresponding to the minimum size of the AE source, which signal may be registered under certain conditions		sensitivity of AE instrument
2.4.7 speed of processing acoustic emission information: processing Speed and a set of parameters of signals AE equipment AE in real time without interruption of data transmission, expressed as the number of processed pulses per second		processing speed
2.4.8 power handling: Limit the number of AE pulses that can be processed by the AE instrument at maximum speed with no data loss		processing capacity
2.4.9 level of overloading: a Value of electric voltage at the input of the AE equipment, above which there is distortion of the signal AE, which can lead to error in the measurement of AE parameters		signal overload level
2.4.10 dynamic range: the Difference, expressed in dB, between the values of the signal (or the ratio of the signal values), which leads to overload of the amplifier of the AE equipment and noise level or a level specified by the design of the amplifier		dynamic range
2.4.11 acoustic emission channel System, which applies the signal AE, which includes part of the object from the AE source to the PAE, PAE, items, and blocks transmission of an electrical signal AE, and a device for signal processing of AE, including the processor		acoustic emission channel
2.4.12 acoustic emission waveguide: a Device that transmits an acoustic signal AE is PAE, placed at a distance from the object.		waveguide
Note — an Example of the acoustic waveguide can serve as a solid wire or rod, which is acoustically connected at one end with the object, and the other with a Converter
2.4.13 simulated acoustic emission: an Application of external impact to the object to simulate acoustic emission sources		simulation of AE
2.4.14 simulator of acoustic emission: a Device used for artificial excitation in the object acoustic waves simulating acoustic emission		simulator of AE
2.4.15 su-Nielsen simulator: Source, simulating AE signals by the bend of the pencil, provided with a protective annular nozzle, which determines the angle between the pencil and the surface of the object		Hsu-Nielsen source
2.4.16 calibration equipment: Test conducted to examine and/or control characteristics of the AE equipment		calibration of AE instrumentation
2.4.17 measure for certification of converters of acoustic emission: a Device used to create the PAE input acoustic stimulation with known characteristics		special calibration block
2.4.18 calibration unit: the calibration unit for PAE		calibration block

Alphabetical index of terms in Russian language


And
The activity of acoustic emission	2.2.7
The activity of acoustic emission parametric	2.2.34
The amplitude of the signal of acoustic emission	2.2.11
Antenna acoustic emission	2.4.2
Equipment acoustic emission	2.4.4
B
Block calibration	2.4.18
In
The waveguide acoustic emission	2.4.12
Time dead	2.2.22
The rise time of the pulse of acoustic emission	2.2.19
The fall time of the pulse of acoustic emission	2.2.20
Operation time according to indications of acoustic emission for more	2.3.15
The emission of acoustic emission signals	2.2.1
D
Decibels acoustic emission	2.2.13
Diagnosis of acoustic emission	2.1.7
The range of dynamic	2.4.10
The duration of the pulse of acoustic emission	2.2.21
E
Capacity acoustic emission equipment	2.4.8
Z
Control zone	2.2.25
And
Indication of events of acoustic emission	2.2.29
Simulator of acoustic emission	2.4.14
Simulation of acoustic emission	2.4.13
The impulse acoustic emission	2.2.5
The intensity of acoustic emission	2.2.8
The source of acoustic emission	2.1.10
The source of acoustic emission active	2.3.7
The source of acoustic emission catastrophically active	2.3.9
The source of acoustic emission critical active	2.3.8
The source of acoustic emission passive	2.3.6
To
The Kaiser effect	2.3.10
Calibration equipment	2.4.16
Channel acoustic emission	2.4.11
Classification of acoustic emission sources	2.3.1
Cluster location	2.2.30
The end of acoustic emission signals	2.2.18
Condition monitoring, acoustic emission	2.1.8
Criteria for the classification of acoustic emission sources	2.3.3
The parametric criterion of activity of acoustic emission sources	2.3.4
The criterion of the limiting state of the object, acoustic emission	2.3.14
L
Location adaptive	2.2.26.4
Location.	2.2.27
Location of acoustic emission source	2.2.26
Location of sources of continuous acoustic emission	2.2.28
Location linear	2.2.26.1
The location of the planar	2.2.26.2
Location by acoustic emission parameters in the channels.	2.2.27.1
Location on the sequence of check pulses in the channels.	2.2.27.3
The location registration signal, the first channel.	2.2.27.2
The three-dimensional location	2.2.26.3
M
Measure for certification of converters of acoustic emission	2.4.17
The method of acoustic ultrasonic	2.1.6
The method of acoustic emission	2.1.5
The mechanism of generation of acoustic emission	2.1.14
Monitoring of acoustic emission diagnostic	2.1.9
N
Loading	2.2.33
Registration of acoustic emission signals	2.2.17
On
The image of the source of acoustic emission	2.3.2
P
Parameter classification	2.3.5
The loading parameter generalized	2.2.32
Disturbance acoustic emission	2.1.15
Threshold equipment	2.4.5
The threshold of the floating equipment	2.4.5.2
The threshold of programmable hardware	2.4.5.3
The threshold of the instrument fixed	2.4.5.1
The Converter of acoustic emission	2.4.1
R
The time difference in arrival of acoustic emission signals	2.2.23
The distribution of pulses of acoustic emission amplitude	2.2.14
The distribution of pulses of acoustic emission amplitude differential	2.2.16
The distribution of pulses of acoustic emission amplitude cumulative	2.2.15
With
The acoustic emission signal	2.1.11
The signal of acoustic emission acoustic	2.1.11.1
The electrical AE signal	2.1.11.2
The speed of processing of the acoustic information	2.4.7
The speed of propagation of the acoustic pulse effective	2.2.24
The count rate of acoustic emission	2.2.3
Event acoustic emission	2.2.4
The state of the object limit	2.3.13
Environment contact	2.4.3
Su-Nielsen simulator	2.4.15
The expense of acoustic emission total	2.2.2
T
Accuracy of location	2.2.31
Have
Overload level	2.4.9
The level of acoustic emission signals	2.2.12
F
Felicity ratio	2.3.12
Felicity effect	2.3.11
H
The number of pulses of acoustic emission	2.2.6
The sensitivity of the equipment limit	2.4.6
W
The noise of the Converter of acoustic emission own	2.1.17
The background noise	2.1.16
E
Acoustic emission	2.1.1
Acoustic emission in friction	2.1.4
Acoustic emission leak	2.1.3
Discrete acoustic emission	2.1.12
The emission of acoustic material	2.1.2
Continuous acoustic emission	2.1.13
The energy of acoustic emission	2.2.9
The energy of the acoustic emission source	2.2.10

Alphabetical index of the terms in English


3
3D location	2.2.26.3
A
Acoustic emission	2.1.1
Acoustic emission count	2.2.2
Acoustic emission count rate	2.2.3
Acoustic-emission decibels	2.2.13
Acoustic emission event	2.2.4
Acoustic emission burst count	2.2.6
Acoustic emission diagnostic	2.1.7
Acoustic emission event rate	2.2.7
Acoustic emission impulse	2.2.5
Acoustic emission interference	2.1.15
Acoustic emission leak detection of	2.1.3
Acoustic emission method	2.1.5
Acoustic emission monitoring	2.1.9
Acoustic emission of friction	2.1.4
Acoustic emission of material	2.1.2
Acoustic emission signal	2.1.11
Acoustic emission sensor, transducer	2.4.1
Acoustic emission testing	2.1.8
Acoustic signal of AE	2.1.11.1
The Acousto-ultrasonics method	2.1.6
Active AE source	2.3.7
Adaptive location	2.2.26.4
Additional time of operation under the indications of AE	2.3.15
AE criterion of maximum permissible condition of the object	2.3.14
AE impulse duration	2.2.21
AE impulse decay time	2.2.20
AE signal amplitude	2.2.11
AE signal end	2.2.18
AE signal rise time	2.2.19
AE signal start	2.2.17
AE source location	2.2.26
Array	2.4.2
Arrival sequence zone location	2.2.27.3
In
Background noise	2.1.16
Burst acoustic emission	2.1.12
With
Calibration block	2.4.18
Calibration of AE instrumentation	2.4.16
Catastrophic active AE source	2.3.9
Channel, acoustic emission	2.4.11
Classification of AE sources	2.3.1
Classification parameter	2.3.5
Cluster location	2.2.30
Continuous acoustic emission	2.1.13
Continuous AE signal location	2.2.28
Count of acoustic emission signal	2.2.1
Couplan	2.4.3
Criterions of classification of AE sources	2.3.3
Criterions of AE sources parametric activity	2.3.4
Critically active source AE	2.3.8
Cumulative amplitude distribution	2.2.15
D
Dead time	2.2.22
Differential amplitude distribution	2.2.16
Dynamic range	2.4.10
E
Effective velocity	2.2.24
Electric signal of AE	2.1.11.2
Energy of AE	2.2.9
Energy of AE source	2.2.10
Examination zone	2.2.25
F
Felicity effect	2.3.11
Felicity ratio	2.3.12
First-hit zone location	2.2.27.2
Fixed threshold	2.4.5.1
Floating threshold	2.4.5.2
G
Generalized parameter of stimulation	2.2.32
H
Hsu-Nielsen source	2.4.15
I
Impulse amplitude distribution	2.2.14
Independent channel zone location	2.2.27.1
Indication of AE event	2.2.29
Instrumentation	2.4.4
Instrumentation threshold	2.4.5
Intensity of AE	2.2.8
Interval arrival time	2.2.23
K
Kaiser effect	2.3.10
L
Linear location	2.2.26.1
Location accuracy	2.2.31
M
Maximum permissible condition of the object	2.3.13
Mechanism of acoustic emission generation	2.1.14
N
Nonactive AE source	2.3.6
P
Parametric AE activity	2.2.34
Planar location	2.2.26.2
Processing capacity	2.4.8
Processing speed	2.4.7
Programmed threshold	2.4.5.3
S
Sensitivity of AE instrument	2.4.6
Sensor’s noise	2.1.16
Signal level	2.2.12
Signal overload level	2.4.9
Signature, acoustic emission	2.3.2
Simulation of AE	2.4.13
Simulator of AE	2.4.14
Source of acoustic emission	2.1.10
Special calibration block	2.4.17
Stimulation	2.2.33
W
Waveguide	2.4.12
Z
Zone location	2.2.27

The electronic text of the document
prepared by JSC «Code» and checked by:
the official publication of the
M.: STANDARTINFORM, 2013

GOST R 55045-2012

GOST R 55045−2012 Technical diagnostics. Acoustic emission diagnostics. Terms, definitions and symbols

1 Scope

2 Terms and definitions

Alphabetical index of terms in Russian language

Alphabetical index of the terms in English

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GOST R 55045-2012

GOST R 55045−2012 Technical diagnostics. Acoustic emission diagnostics. Terms, definitions and symbols

1 Scope

2 Terms and definitions

Alphabetical index of terms in Russian language

Alphabetical index of the terms in English

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Metallurgy

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