Microprocessor-Based Digital Accelerometer and its Application in an Instrument for Motor Torque-Speed Characteristic Display During the Transient Interval

A digital accelerometer is realized using a microprocessor. An algorithm is used to calculate the derivative of an ac tachogenerator signal. For the calculation of each acceleration value 20 angular speed samples are used by this algorithm. An automated torque-speed curve tracer controlled by the microprocessor is developed using this digital accelerometer.