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本文叙述一种数字力传感器装置,更准确地定义为间接数字装置。该装置保持模拟力传感器的大部分优点,并具有数字系统的稳定性和与计算机的相容性。数字力传感器可处理700克以内的力,用普遍采用的敏感元件,二进制8位,分辨率4克。询问率为7仟赫,可识别频率大大超过1仟赫的力。线性度优于±0.1％±二进制最低位的1/2,重复率优于满量程的±0.25％。所述的装置在三年内几乎每天使用,经考核是十分可靠的。此传感器用作全数字张力测试仪的总体部分,其性能超过测试系统的需要。与联结大批生产的模一数硬件的模拟传感器相比,此传感器在设计和制造上是经济的。
This article describes a digital force sensor device that is more accurately defined as an indirect digital device. The device retains most of the advantages of analog force sensors and has the stability of a digital system and its compatibility with a computer. Digital force sensor can handle less than 700 grams of force, with commonly used sensors, binary 8, resolution 4 grams. The inquiry rate is 7 kHz, which identifies forces with frequencies well above 1 kHz. Linearity better than ± 0.1% ± 1/2 of the lowest binary, repeatability better than ± 0.25% of full scale. The device is used almost daily for three years, and the assessment is very reliable. This sensor is used as an integral part of a Tensile Tensile Tester and its performance exceeds the needs of the test system. This sensor is economical in design and manufacture compared to analog sensors, which combine mass-produced analog-to-digital hardware.