| 摘要 |
This invention is device and method for electronic measurements of the force and torque applied to a work piece. The measured values are visually displayed, audibly indicated, and/or transferred in electronic formats to other controlling devices. The values could be displayed in different physical measuring units, and as an average or peak. The device produces different output signals when the torque applied equals or exceeds predetermined values. This device and method provide an automatic, accurate, and easy calibration, which could be self-calibration or in-the-field calibration. It has protection from accidental activation of the switches, and provides a permanent record of the incidents in which the device was operated at conditions beyond its specifications. It provides a manual and/or automatic scale selection to improve the accuracy.
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