Research of Trees' s Fixed High Diameter Meter
Zhipeng Li · Linye jixie · 2006
Trees's fixed high diameter meter is a new kind measuring instrument,which bases on many kinds of technologies such as the one-chip computer,ultrasonic and bar code discerning.The main purpose of this research is to develop a kind of portable measuring tool with high technology,which breaks away from traditionally handwriting the measurement data.The paper introduced the measure principle and system's structure,as well explicated the hardware structure and work principle of trees' s fixed high diameter meter.