1results about How to "High speed control precision" patented technology

The utility model relates to a kind of rotary platform devices for substance detection, comprising: input module, motor driver module, main power module, voltage reduction module and raspberry module, main power module is powered for motor driver module and raspberry module by voltage reduction module, input module connects the ADC pin of raspberry module, motor driver module is connected with the stepping motor of rotary platform, motor driver module and raspberry module are connected, and motor driver module is used to receive the PWM signal output by raspberry module to realize the speed regulation of the stepping motor of rotary platform.The utility model described for substance detection rotary platform device, speed control precision improves, 16-bit ADC is collected knob signal and A4988 subdivision drive, and speed regulation precision is improved from ±10% to ±0.5%, meet the requirement of precision positioning and uniform rotation;Support real-time stepless adjustment, and on-site debugging time is shortened;Power compatibility is enhanced.