A microvibrometer with 16-bit MCU MSP430

microaccelerometer ADXL203 and nRF2401 is developed.ADXL203 is used to detect vibration signal of objects under test.The output signal is analog voltage proportional to acceleration.Through filtration

amplification and A/D conversion

the weak analog signal is transformed to binary signal

which can be recognized by MCU.nRF2401 sends the signal processed by MCU to PC to display acceleration curve.The research focuses on testing the vibration signal of small low-power sensitive component ADXL203

A/D sampling based on interruption and signal transmission using nRF2401

the correction of the design is proved by the experiment of vibration test

and the project is adapted to low power

mini-size

networking vibration test.