JJF 1293-2011 English PDF

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JJF 1293-2011: Calibration Specification for Electrostatic Actuators
Status: Valid

JJF 1293: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1293-2011	419	Add to Cart	3 days	Calibration Specification for Electrostatic Actuators	Valid
JJF 1293-1990	239	Add to Cart	2 days	O. T. N. for Primary Standard of Dissipation Factor of Capacitor (explanation)	Obsolete

Similar standards

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Basic data

Standard ID: JJF 1293-2011 (JJF1293-2011)
Description (Translated English): Calibration Specification for Electrostatic Actuators
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A55
Word Count Estimation: 18,169
Date of Issue: 2011-07-04
Date of Implementation: 2011-10-04
Quoted Standard: JJF 1001-1998; JJF 1034-2005; JJF 1059-1999; JJG 449-2001; JJG 790-2005; GB/T 3102.7-1993; IEC 61094-6-2004
Regulation (derived from): AQSIQ Announcement No. 104 of 2011
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard provides for the determination of the frequency response of the microphone electrostatic actuator metrological characteristics, calibration conditions and calibration methods. This standard applies to the determination of the frequency response of the microphone electrostatic actuator calibration.

JJF 1293-2011: Calibration Specification for Electrostatic Actuators

---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.
Calibration Specification for Electrostatic Actuators People's Republic of China National Metrology Technical Specifications Electrostatic actuator calibration specification Issued on. 2011-07-04 2011-10-04 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Electrostatic actuator calibration specification This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on July 4, 2011, and from From October 4, 2011 into effect. Focal point. the National Committee of the acoustic measurement technology Drafting units. China Institute of Metrology Hengyang Heng Electric Instrument Co., Ltd. Application of Shaanxi Normal University Institute of Acoustics This specification metering commissioned National Technical Committee is responsible for interpreting acoustics Drafters of this specification. He Longbiao (China Institute of Metrology) Liu Xiangheng (Hengyang Heng Instrument Electric Co., Ltd.) Chen Jianlin (China Institute of Metrology) Niu Feng (China Institute of Metrology) Sheng-lift (Shaanxi Normal applications Acoustics)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 terminology and units of measurement (1) 4 Overview (1) 5 Metrological characteristics (2) 5.1 electrostatic actuator response repeatability (2) 5.2 electrostatic actuator in response to sound pressure level and the difference between the response level of consistency (2) Calibration Condition 6 (2) 6.1 environmental conditions (2) 6.2 Standard device and other equipment (2) 7 calibration items and calibration methods (3) 7.1 calibration items (3) 7.2 Calibration method (3) 8 calibration results expression (4) 8.1 Calibration records (4) 8.2 Calibration Data Processing (4) 8.3 calibration certificate (5) 8.4 Calibration of Uncertainty Evaluation (5) 9 Recalibration interval (5) Appendix A calibration certificate (6) Appendix B Uncertainty evaluation calibration results of examples (8) Electrostatic actuator calibration specification

1 Scope

This specification defines the metrological characteristics for measuring the frequency response of the microphone electrostatic actuator, calibration conditions and calibration method. This standard applies to the determination of the microphone frequency response of electrostatic actuator calibration.

2 Citations

This specification references the following documents JJF 1001-1998 common measurement terms and definitions JJF 1034-2005 acoustic measurement terminology and definitions JJF 1059-1999 Evaluation and Expression of Uncertainty in Measurement JJG449-2001 octave and 1/3 octave filters JJG790-2005 laboratory standard microphones (coupling cavity Reciprocity Method) GB/T 3102.7-1993 Quantities and units of acoustics IEC 61094-6.2004 Measurement microphones - Part 6. Measuring the frequency response of the electrostatic actuator (Meas- urementmicrophones-Part 6. Electrostaticactuatorsfordeterminationoffrequencyre- sponse) When using this specification it should be noted that using the currently valid version of the documents cited.

3 terminology and units of measurement

This specification uses terminology and definitions relating to the JJF 1001-1998 and JJF 1034-2005. This specification uses quantities and units GB/T 3102.7-1993 prescribed. According to the specification requires, references IEC 61094-6 the following terms and definitions. Microphone static actuator response electrostaticactuatorresponseofamicrophone With specially designed by the amplitude-frequency characteristics of a uniform electrostatic actuator drive voltage measured with respect to a predetermined frequency The rate of output, the output frequency of the function represented by the microphone. Note. The static actuator response in decibels (dB).

4 Overview

Determination of the electrostatic actuator is the frequency response of the microphone apparatus is used, consisting of a rigid conductive flat plates. The flat Microphone diaphragm plate is located, AC voltage is applied between the plate and the diaphragm signal generating static electricity to all simulation Uniform distribution of sound pressure on the surface of the membrane, which is the fundamental frequency of the sound pressure p root mean square value of the available formula (1). p = εgasad2U0u (1) Where. p --- fundamental frequency sound pressure root mean square value, in Pa (Pa); ......

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