Development of a wireless data transmission system for a uniaxial dynamometer

Abstract Wireless dynamometers are an adequate solution to measure mechanical loads where the use of cables is not practicable. Proprietary solutions applied in most cases found out literature on wireless dynamometers. However, these have a high market price, and they black-box systems, which limit their application customized conditions. In this context, study presents development dynamometer based low price components with open-source technology for real-time monitoring suitable sampling rate 400 Hz (or 32.8 kbps). The proposed used complete Wheatstone bridge configuration amplifier circuit static gain 99.8 V/V. Calibration tests analysis performance were carried according ISO 376 standard. presented indicators 0.76% hysteresis, 1.34% linearity, 4.83 mV/N sensitivity, 5.22% repeatability. These results show that can be build reliable able comply industrial demands.