1.1 本规程涵盖了用于测量微运动的线性位移传感器及其相应电源、信号调节器和数据采集系统（线性位移传感器系统）的校准程序。它涵盖了用于测量位移的任何传感器，该传感器提供与位移成线性比例的电压输出。这包括但不限于线性可变差动变压器（LVDT）和差动可变磁阻换能器（DVRT）。 1.2 该校准程序用于确定线性位移传感器系统的输出与位移之间的关系。 这种关系用于将线性位移传感器系统的读数转换为工程单位。 1.3 该校准程序还用于确定线性位移传感器系统在其使用范围内的误差。 1.4 以国际单位制表示的数值应视为标准。本标准中不包括其他计量单位。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.6 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 ===意义和用途====== 4.1 线性位移传感器系统在骨科应用中发挥着重要作用，用于测量关节假体模拟使用过程中的微运动。 4.2 必须对线性位移传感器系统进行校准，以便在实验室中使用，以确保系统的电气输出可靠地转换为工程单位。 4.3 线性位移传感器系统应在首次使用前进行校准，此后至少每年一次，在使用传感器的电子配置发生任何变化后，在使用与上次校准期间不同的传感器的测试条件发生任何重大变化后，以及在传感器上可能影响其响应的任何物理动作后进行校准。 4.4 在测试前后，应根据每次使用情况，根据校准情况对传感器性能进行验证。这种验证可以用比校准更不准确的标准来完成，也可以只用几个点来完成。 4.5 线性位移传感器系统通常具有工作范围，在该工作范围内电压输出与传感器的位移成线性比例。此程序适用于传感器的线性范围。推荐做法是仅在线性工作范围内使用线性位移传感器系统。

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 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 ====== 4.1 Linear displacement sensor systems play an important role in orthopedic applications to measure micromotion during simulated use of joint prostheses. 4.2 Linear displacement sensor systems must be calibrated for use in the laboratory to ensure reliable conversions of the system’s electrical output to engineering units. 4.3 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. 4.4 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. 4.5 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.