ASTM F2537-2006(2011)
微移动用直线位移传感器系统的刻度标准实施规范

Standard Practice for Calibration of Linear Displacement Sensor Systems Used to Measure Micromotion

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标准号

ASTM F2537-2006(2011)

发布日期

2006年

实施日期

废止日期

无

中国标准分类号

L15

国际标准分类号

17.020 (Metrology and measurement in general)

发布单位

US-ASTM

代替标准

ANSI/ASTM D3636-2013

适用范围

Linear displacement sensor systems play an important role in orthopedic applications to measure micromotion during simulated use of joint prostheses.

Linear displacement sensor systems must be calibrated for use in the laboratory to ensure reliable conversions of the systemx2019;s electrical output to engineering units.

Linear displacement sensor systems should be calibrated before initial use, at least annually thereafter, after any change in the electronic configuration that employs the sensor, after any significant change in test conditions using the sensor that differ from conditions during the last calibration, and after any physical action on the sensor that might affect its response.

Verification of sensor performance in accordance with calibration should be performed on a per use basis both before and after testing. Such verification can be done with a less accurate standard than that used for calibration, and may be done with only a few points.

Linear displacement sensor systems generally have a working range within which voltage output is linearly proportional to displacement of the sensor. This procedure is applicable to the linear range of the sensor. Recommended practice is to use the linear displacement sensor system only within its linear working range.

1.1 This practice covers the procedures for calibration of linear displacement sensors and their corresponding power supply, signal conditioner, and data acquisition systems (linear displacement sensor systems) for use in measuring micromotion. It covers any sensor used to measure displacement that gives an electrical voltage output that is linearly proportional to displacement. This includes, but is not limited to, linear variable differential transformers (LVDTs) and differential variable reluctance transducers (DVRTs).

1.2 This calibration procedure is used to determine the relationship between output of the linear displacement sensor system and displacement. This relationship is used to convert readings from the linear displacement sensor system into engineering units.

1.3 This calibration procedure is also used to determine the error of the linear displacement sensor system over the range of its use.

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

1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.