JJF 1080-2002 English PDF

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JJF 1080-2002: Calibration Specification of Blackbody Radiators in -50~+90 Celsius
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1080-2002	389	Add to Cart	3 days	Calibration Specification of Blackbody Radiators in -50~+90 Celsius	Valid

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Basic data

Standard ID: JJF 1080-2002 (JJF1080-2002)
Description (Translated English): Calibration Specification of Blackbody Radiators in -50~+90 Celsius
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A58
Word Count Estimation: 15,132
Date of Issue: 2002-04-15
Date of Implementation: 2002-07-01
Quoted Standard: JJG 2093-1995
Regulation (derived from): Administration of Quality Supervision, Inspection and Quarantine No. 25 of 2004
Issuing agency(ies): State Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to all kinds of blackbody radiation calibration. Blackbody source operating temperature range is -50 ~ +90 ��, +90 ~ +250 �� and other types of thermal blackbody radiation calibration can be performed with reference to this specification.

JJF 1080-2002: Calibration Specification of Blackbody Radiators in -50~+90 Celsius

---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 of Blackbody Radiators in -50~ 90 Celsius National Metrology Technical Specification of the People's Republic -50~ 90°C blackbody radiation source Calibration specification Radiatorsin-50~ 90°C Released on.2002-04-15 2002-07-01 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued This specification was approved by the General Administration of Quality Supervision, Inspection and Quarantine on April 15,.2002, and Implemented on July 1,.2002. Focal Point. National Optical Metrology Technical Committee Drafted by. China Institute of Metrology This specification is interpreted by the focal point The main drafters of this specification. Zhang Jianwei (China Institute of Metrology) Huo Chao (China Institute of Metrology)

table of Contents

1 Scope (1) 2 Citations (1) 3 Overview (1) 4 Measurement characteristics (1) 4.1 General requirements (1) 4.2 Measurement requirements (1) 5 Calibration conditions (1) 5.1 Standard and other equipment (1) 5.2 Environmental conditions (2) 6 Calibration items and calibration methods (2) 6.1 Calibration Project (2) 6.2 Calibration Method (2) 7 Calibration results (4) Appendix A Calibration Certificate Format (5) Appendix B Calibration Record Contents (8) Appendix C Uncertainty Evaluation (9) Appendix D -50~ 90°C Blackbody Total Radiation Comparison Device (10) -50~ 90°C Blackbody Radiation Source Calibration Specification

1 Scope

This specification applies to the calibration of various blackbody sources. The blackbody radiation source has an operating temperature range of -50 to 90 °C. Calibration of blackbody and other types of thermal radiation sources at 90~250°C can be performed with reference to this specification.

2 Citations

JJG2093-1995 Normal temperature black body radiation measuring instrument verification system When using this specification, care should be taken to use the current valid version of the cited literature.

3 Overview

Black body radiation sources operating in the temperature range of -50 to 90 °C are mainly used for infrared detection elements and infrared instruments. Machine performance test, infrared thermometer, thermal imager calibration and other fields. The black body radiation source is mainly composed of black body cavity, black body cavity temperature measurement, temperature control component or system, insulation layer and outer casing. to make. Commonly used black body cavities are cylindrical, conical, spherical, cylindrical and conical, cylindrical and inverted conical, and Other shapes; black body cavity temperature measurement and temperature control components can be resistance thermometers or thermocouple thermometers; temperature control systems can be used The heat pipe method, the constant temperature liquid flow method, the resistance heating method, and the like are used.

4 Measurement characteristics

4.1 General requirements The dimensions are reasonable, the structure is compact, the assembly is reliable; the surface of the radiation surface and the cavity surface are uniform, and the oxide film is ignorant. Significantly peeling off, no scratches on the surface; no water leakage, leakage and other abnormal phenomena; the temperature difference between the black body shell and the environment must not exceed 10K. 4.2 Measurement requirements Effective emissivity. ≥0.92 Total radiant temperature measurement range. -50~ 90°C Full radiance measurement range. 45~320W·m2

5 Calibration conditions

5.1 Standards and other equipment See Appendix D for a calibration device diagram. 5.1.1 -50~ 90°C standard black body, the main technical indicators are. Black body cavity diameter. >60mm Cavity effective emissivity. >0.999 Temperature uncertainty (k=2). 0.1K ......

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