Device for detecting and verifying water content of woods

2014 
The utility model relates to a device for detecting and verifying the water content of woods, and relates to a device for detecting and verifying the water content. The device disclosed by the utility model is used for solving the problems that the existing device is inaccurate to detect the water content, and is incapable of detecting the water content of the woods of different tree species at different temperatures and verifying the water content of the woods having different water content at different temperatures. The device disclosed by the utility model comprises an induction part, a data processing part and a display screen, wherein the induction part comprises a probe and a temperature sensor; the power supply and data processing part comprises a water content detecting circuit, a temperature detecting circuit, an A/D conversion module and a CPLD (Complex Programmable Logic Device) chip; and the water content detecting circuit comprises a first detection end, a second detection end, a first triode, a second triode, a third triode, a field-effect tube, a first potentiometer, a second potentiometer, a third potentiometer, a voltage stabilizer, a first resistor, a second resistor, a third resistor, a first electrolytic capacitor, a second electrolytic capacitor, a first filter capacitor, a second filter capacitor and an operational amplifier. The device disclosed by the utility model is simple in structure and accurate in detection result.
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