ASTM-E1213 Standard Practice for Minimum Resolvable Temperature Difference for Thermal Imaging Systems

ASTM-E1213 - 2014 R18 EDITION - CURRENT
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Standard Practice for Minimum Resolvable Temperature Difference for Thermal Imaging Systems
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Scope

1.1 This practice covers the determination of the minimum resolvable temperature difference (MRTD) capability of the compound observer-thermal imaging system as a function of spatial frequency.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Significance and Use

5.1 This practice relates to a thermal imaging system's effectiveness for discerning details in a scene.

5.2 MRTD values provide estimates of resolution capability and may be used to compare one system with another. (Lower MRTD values indicate better resolution.)

5.3 Due to the partially subjective nature of the procedure, repeatability and reproducibility are apt to be poor and MRTD differences less than 0.2 °C are considered to be insignificant.

Note 1: Values obtained under idealized laboratory conditions may or may not correlate directly with service performance.

Keywords

infrared; infrared imaging systems; minimum resolvable temperature difference; nondestructive testing; thermal imaging systems; thermography;; ICS Number Code 17.180.20 (Colours and measurement of light)

To find similar documents by ASTM Volume:

03.03 (Nondestructive Testing)

To find similar documents by classification:

17.180.20 (Colours and measurement of light)

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Document Number

ASTM-E1213-14(2018)

Revision Level

2014 R18 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

Dec. 15, 2018

Document Type

Practice

Page Count

3 pages

Committee Number

E07.10