MCU (Micro Control Unit) is a core part in a dynamic
torque sensor. On the one hand, it should receive the
results of A/D transformation of dynamic torque, on the
other hand it also needed to process and transmit data, by
the serial port, to RF emitter so as to build RF
transmission. In working, the dynamic torque sensor
circuit rotates with rotary shaft. Therefore, MCU should be
chosen with low power consumption, high speed, strong
stability, and so on. A/D converters are the core
components of analog input channels, which are used to
achieve sampling, quantization and coding. C8051F350 is
adopted in the system which is designed by Silicon Labs in
United States. The chip integrates a 24-bit high-precision
ADC.