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JJG 338-2013 English PDF

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JJG 338-2013: Verification Regulation of Charge Amplifiers
Status: Valid

JJG 338: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 338-2013English699 Add to Cart 5 days [Need to translate] Verification Regulation of Charge Amplifiers Valid JJG 338-2013
JJG 338-1997English639 Add to Cart 5 days [Need to translate] Verification Regulation of Charge Amplifier Obsolete JJG 338-1997
JJG 338-1983EnglishRFQ ASK 3 days [Need to translate] (Chinese Industry Standard) Obsolete JJG 338-1983

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Basic data

Standard ID JJG 338-2013 (JJG338-2013)
Description (Translated English) Verification Regulation of Charge Amplifiers
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A56
Classification of International Standard 17.160
Word Count Estimation 30,311
Older Standard (superseded by this standard) JJG 338-1997
Quoted Standard JJG 233-2008; JJG 449-2001; JJG 834-2006; JJF 1156-2006; JJF 1269-2010; GB/T 20485.1-2008
Regulation (derived from) AQSIQ Notice No. 154 of 2013
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to: Charge Amplifier initial verification, testing and use of the follow-up examination.

JJG 338-2013: Verification Regulation of Charge Amplifiers

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Verification Regulation of Charge Amplifiers State verification procedures People's Republic of China Charge amplifier Issued on. 2013-10-25 2014-04-25 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Charge amplifier test procedures Replacing JJG 338-1997 Focal point. the National Technical Committee of shock and vibration measurement speed The main drafting units. China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology graduate School Participated in the drafting unit. Beijing Institute of Metrology detection Yangzhou English Mike Control Technology Co., This procedure entrust national shock and vibration speed measurement technology committee responsible for the interpretation The main drafters of this procedure. Shao Xinhui (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Institute The study) I had (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Institute The study) Drafters participate. Zhang Ningning (China Aviation Industry Corporation Beijing Great Wall Measurement and Testing Technology Institute The study) Lixue Rui (Beijing Institute of Metrology detection) CHEN Qi-Shan (Yangzhou English Mike Control Technology Co.)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 Gain block (1) 3.2 normalized block (1) 3.3 Transfer Coefficient (1) 4 Overview (1) 5 metering performance requirements (2) 5.1 Classification charge amplifier (2) 5.2 Input equivalent noise charge (3) 5.3 normalized error (3) 5.4 Gain block error (3) 5.5 linearity error (3) 5.6 Distortion (3) 5.7 low-pass filter cut-off frequency (upper limit frequency) (3) 5.8 high-pass filter cut-off frequency (lower limit frequency) (3) 5.9 Frequency characteristic (4) 5.10 phase-frequency characteristic (4) 5.11 error integrator (4) 6 General Requirements (4) 6.1 appearance requirements (4) 6.2 Other technical requirements (4) 7 control of measuring instruments (4) 7.1 test conditions (4) 7.2 Verification Project (5) 7.3 Verification Methods (5) 7.4 test results processing (15) 7.5 test cycle (15) Appendix A is equivalent to the lower limit frequency derivation (16) Appendix B assay format recommended by the original record (17) Appendix C calibration certificate/test results in the notice page and format (21)

Introduction

This procedure based on JJF1002-2010 "national verification procedures to write rules" for JJG 338-1997 "electricity Charge Amplifier "revision, compared with JJG 338-1997, in addition to editorial changes, the major technical changes are as follows. --- The "attenuation block" changed to "gain block"; --- Abolition of the "accuracy of synthesis" is defined; --- Modify the charge amplifier INES, increased levels of "a", the abolition of the "accuracy" "0.5dB maximum frequency" and "distortion" level determination conditions, to increase the "gain block error" level determination condition; --- Improve the technical requirements normalized error, linearity error, and distortion; --- The "limit frequency" instead of looking for "high-pass filter cutoff frequency attenuation limit amount" of judgment; --- The "low-pass filter cut-off frequency error" on the decision to "low-pass filter cutoff frequency attenuation limit Determined quantity "; --- Canceled "0.5dB maximum frequency" test project; --- Added "digital normalized block" and "verification method normalized error"; --- Increasing the amplitude-frequency characteristics and phase-frequency characteristics of the measurement performance requirements; --- Refine the measurement of performance requirements integrator errors. The previous versions of the release JJG 338-1997 case. --- JJG 338-1983. Charge amplifier test procedures

1 Scope

The order applies to the charge amplifier initial verification, subsequent verification and the use of checks. 2. References This procedure references the following documents. JJG 233-2008 piezoelectric accelerometer test procedures JJG 449-2001 octave and 1/3 octave filter test procedures JJG 834-2006 Dynamic Signal Analyzer JJF1156-2006 vibration, shock, speed measurement terms and definitions JJF1269-2010 integrated circuit piezoelectric sensors (IEPE) amplifier calibration specification GB/T 20485.1-2008 vibration and shock sensor calibration methods - Part 1. Basic Concepts For dated references, only the dated edition applies to this procedure; undated reference documents Member, the latest edition (including any amendments) applies to this procedure.

3 terminology and units of measurement

The following terms and definitions apply to this procedure. 3.1 Gain block gainswitch Charge amplifier "output amplifier" function module selector switch or button, which variables G, the unit It is V/Unit. 3.2 normalized block unityswitch Selector switch or button charge amplifier "normalization amplifier" function module, also called "sensor sensitivity Block "the variables are represented by S units of pC/Unit. 3.3 transmission coefficient transmissioncoefficient Charge amplifier input and output voltage ratio of the amount of charge, with the T, in units of pC/V.

4 Overview

The charge amplifier is a preamplifier piezoelectric transducer, whose output voltage is proportional to the input charge. Electric charge Amplifiers are widely used in vibration, shock, force, pressure, sound intensity and other non-power electrical measurement in. --- Core charge conversion level of the charge amplifier is a specific form of an operational amplifier, shown in Figure 1. Wherein Ci Sensor and wire equivalent capacitance, Cf is the feedback capacitor charge conversion stage. According to the theory of the op amp open-loop gain and high input impedance of the charge amplifier and the output voltage eo The relationship between the input electromotive force ei see equation (1). Potentials UΣ point 1 is almost zero, so-called virtual place, so the capacitor plates charge Ci Qi The relationship between the electromotive force ei can be expressed as a formula (2).

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