ASTM E3125-17
测定中程球面坐标三维成像系统点对点测距性能的标准试验方法

Standard Test Method for Evaluating the Point-to-Point Distance Measurement Performance of Spherical Coordinate 3D Imaging Systems in the Medium Range

标准号

ASTM E3125-17

发布

2017年

发布单位

美国材料与试验协会

当前最新

ASTM E3125-17

 

 

引用标准

ASME B89.4.19-2006 ASME B89.7.3.1-2001 ASME Y14.5-2009 ASTM E1164 ASTM E1331 ASTM E2544 ASTM E2641 ASTM E284 ASTM E2919 ASTM E2938

适用范围

4.1 This standard provides a test method for obtaining the point-to-point distance measurement errors for medium-range 3D imaging systems. The results from this test method may be used to evaluate or to verify the point-to-point distance measurement performance of medium-range 3D imaging systems. The results from this test method may also be used to compare performance among different instruments.

4.2 The purpose of this document is to provide test procedures that are sensitive to instrument error sources. The point-to-point distance measurement performance of the IUT obtained by the application of this test method may be different from the point-to-point distance measurement performance of the IUT under some real-world conditions. For example, object geometry, texture, surface reflectance factor, and temperature, as well as particulate matter, thermal gradients, atmospheric pressure, humidity, ambient lighting in the environment, mechanical vibrations, and wind induced test setup instability will affect the point-to-point distance measurement performance (see Appendix X10 for a discussion on thermal effects). A derived-point such as the center of a suitable sphere or plate target that meets the requirements described in Section 7 provides a reliable point in space that is minimally impacted by target-related properties such as geometry, surface texture, color, and reflectivity. Additional tests not described in this standard may be required to assess the contribution of these influence factors on point-to-point distance measurements.

4.3 The test may be carried out for instrument acceptance, warranty or contractual purposes by mutual agreement between the manufacturer and the user. The IUT is tested in accordance with manufacturer-supplied specifications, rated conditions, and technical documentation.

4.4 For the purposes of understanding the behavior of the IUT and without warranty implications, this test may be modified as necessary to evaluate the point-to-point distance measurement performance of the IUT outside the manufacturer’s rated conditions, but within the manufacturer’s limiting conditions.

4.5 The manufacturer may provide different performance specification values for different sets of rated conditions, for example, better point-to-point distance measurement performance might be specified under a set of more restrictive environmental conditions. The user is advised that the IUT’s performance may differ significantly in other modes of operation, with other instrument settings, or outside the rated conditions, and should consult the manufacturer for performance specifications of the operating mode and instrument settings that best represent the planned usage.

4.6 This standard is intended to expand and complement the ranging tests described in Test Method E2938. While Test Method E2938 specifically describes the evaluation of the ranging capability of any medium-range 3D imaging system, this standard provides test procedures to evaluate the point-to-point distance error due to the combined effect from angular and ranging errors of a particular type of these systems, that is, spherical coordinate 3D imaging systems.

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