JJF 1219-2009_English: PDF (JJF1219-2009)
| Standard ID | USD | BUY PDF | Lead-Days | Standard Title (Description) | Status |
| JJF 1219-2009 | 1409 |
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Calibration Specification for Laser Vibrometers
| Valid |
| JJF 1219-1990 | 319 |
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3 days
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O.T.N.of Temperature Primary Standard in the Range from 273.15 to 903.89K
| Obsolete |
| Standard ID | JJF 1219-2009 (JJF1219-2009) | | Description (Translated English) | Calibration Specification for Laser Vibrometers | | Sector / Industry | Metrology & Measurement Industry Standard | | Classification of Chinese Standard | A53 | | Classification of International Standard | 17.160 | | Word Count Estimation | 61,668 | | Date of Issue | 2009-08-18 | | Date of Implementation | 2009-11-18 | | Quoted Standard | JJF 1156-2006; GB/T 2298-1991; GB/T 20485.11-2006; GB/T 20485.13-2007 | | Drafting Organization | Beijing Changcheng Institute of Measurement and Testing Technology | | Administrative Organization | National Technical Committee of vibration impact and speed measurement | | Regulation (derived from) | AQSIQ Announcement No. 78 of 2009 | | Issuing agency(ies) | State Administration of Quality Supervision, Inspection and Quarantine | | Summary | This standard applies to the calibration of the laser vibrometer. |
JJF 1219-2009
Calibration Specification for Laser Vibrometers
People's Republic of China National Metrology Technical Specifications
Laser vibrometer calibration specification
Posted 2009-08-18
2009-11-18 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Laser vibrometer calibration specification
CalibrationSp
This specification by the State Administration of Quality Supervision, Inspection and Quarantine approved on August 18, 2009, and from
From November 18, 2009 into effect.
Focal point. the National Technical Committee of shock and vibration measurement speed
Main drafting unit. Beijing Great Wall Institute of Measurement and Testing Technology
Participated in the drafting unit. Institute of Measurement and Detection Guangzhou
The shock and vibration specification by the National Technical Committee is responsible for interpretation of measurement speed
The main drafters of this specification.
Liang Zhiguo (Beijing Great Wall Institute of Measurement and Testing Technology)
Li Xinliang (Beijing Great Wall Institute of Measurement and Testing Technology)
Drafters participate.
Xue Jingfeng (Beijing Great Wall Institute of Measurement and Testing Technology)
Lun Zhou Bin (Guangzhou Institute of Measurement and Detection)
table of Contents
1 Scope (1)
2. Referenced Documents (1)
3 Terms and Definitions (1)
3.1 laser vibrometer (1)
3.2 laser vibrometer reference standard (1)
3.3 Overshoot (1)
4 Overview (1)
5 Metrological characteristics (2)
Calibration Condition 6 (2)
6.1 environmental conditions (2)
6.2 calibration equipment (2)
7 calibration items and calibration methods (4)
7.1 check work (5)
7.2 linearity, sensitivity (5)
7.3 Frequency characteristic (7)
7.4 Range (8)
Distortion 7.5 (8)
8 calibration results expression (9)
9 Recalibration interval (9)
Appendix A heterodyne laser vibrometer signal acquisition, processing circuit calibration method (10)
Appendix B laser vibrometer calibration results recording format (14)
Appendix C sinusoidal sequence of least squares fitting algorithm (16)
Appendix D digital FM signal Demodulation Method (20)
Appendix E Information Appendix Measurement Uncertainty (21)
Laser vibrometer calibration specification
1 Scope
This standard applies to the laser vibrometer calibration.
2 Citations
JJF 1156-2006 shock and vibration speed measurement terms and definitions
GB/T 2298-1991 Mechanical vibration and shock term
GB/T 20485.11-2006 vibration and shock sensor calibration methods - Part 11. Laser interferometry vibration
Absolute calibration
GB/T 20485.13-2007 vibration and shock sensor calibration methods - Part 13. Laser interferometry Shock
Absolute calibration
When using this specification it should be noted that using the currently valid version of the documents cited.
3 Terms and Definitions
3.1 laser vibrometer (laservibrometer)
And for vibration measurement instrument comprises a laser interferometer.
3.2 Reference standard laser vibrometer (laservibrometerstandard)
For laser vibrometer vibration and the vibration sensor calibration reference standard includes a laser interferometer.
3.3 overshoot (overshoot)
Increase the input system, the system becomes the output value from the steady state to another steady state value larger, exceed the new steady state value
The maximum transient response is called overshoot.
4 Overview
A typical block diagram of a laser vibrometer as shown, it is mainly composed of a laser interferometer, a signal acquisition, processing power
Road, waveform output and other aspects of the composition, using a laser Doppler effect and laser interferometry to achieve the surface movement speed
Non-contact measurement, acceleration and displacement, given by way of analog or digital measurement results.
Laser vibrometer typical block diagram of FIG. 1
The laser interferometer will be moving object surface by laser Doppler velocity information is converted into optical frequency change
Information, the optical interferometer to a photoelectric conversion device into a frequency proportional to the velocity changes with the FM signal; mining
Collection, processing circuit for implementing the FM signal demodulation, given its speed, the number of waveform measurements of displacement and acceleration
According; waveform output section is usually the D/A conversion circuit analog outputs, you can also direct output digitally
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