T/CSOE 0004-2025 Active Group standards

T/CSOE 0004-2025 Method for testing dynamic range of infrared thermal imaging system

Publish Date: 2025-04-18 Implement Date: 2025-04-18 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CSOE 0004-2025

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Films, photography, microfilming, and copying equipment

ICS Name: Optical equipment

Publish Date: 2025-04-18

Implement Date: 2025-04-18

Scope

Scope: It specifies the technical requirements for the dynamic range test of infrared thermal imaging systems, including the test principles, test conditions, test equipment, samples, test steps, data processing, and test reports. Applicable to dynamic range tests of various single-band and multi-band composite infrared thermal imaging systems, it provides standard specifications for future large-scale dynamic range composite imaging systems. Main technical content: Based on the existing national standard GB/T 17444, this document proposes higher requirements for the applicability of dynamic range. (1) Terms and definitions: Defines various terms involved in the dynamic range test of infrared thermal imaging systems, including gray value, pixel noise gray value, cutoff gray value (the lower limit of system response), saturation gray value (the upper limit of system response), and stipulates that the available image gray value can be used to characterize the traditional signal voltage value, that is, the target radiation intensity. (2) Test principles: Describes the test principles. Under a typical ambient temperature T, using blackbody radiation as the reference source, the "temperature-gray scale" response curve of the infrared thermal imaging system's imaging state is obtained by adjusting the blackbody temperature, and the maximum and minimum radiation brightness and corresponding saturation gray value and cutoff gray value are calculated. Based on the definitions, the dynamic range of the infrared thermal imaging system is calculated. (3) Test steps and data processing: Describes the preparation before the dynamic range test, data acquisition methods, data recording, and other processes. At the same time, this document stipulates the test conditions, test equipment, samples, and test reports for the dynamic range test of infrared thermal imaging systems, providing guidance and assurance for the performance testing of infrared-related equipment.