Title: Method and device for automatic on-line measurement of real-time actual grain cutting width
Application Number: 200510012373 Application Date: 2005.03.08
Publication Number: 1664497 Publication Date: 2005.09.07
Approval Pub. Date: 2006.11.22 Granted Pub. Date: 2006.11.22
International Classifi-cation: G01B21/02,A01D34/00
Applicant(s) Name: Agricultural University of Hebei Address: 071000
Inventor(s) Name: Qian Dongping, Qu Ping, Kuang Pusheng, Chen Guanhu
Attorney & Agent: wang qi
Abstract:
     The invention relates to a method of measuring the actual cutting breadth of the corn automatically and a device using this method, which can be used measuring, recording and storing the cutting breadth of the corn automatically by combine harvester, fixing two ultrasonic sensor to the left and right port of the combine harvester’s divider individually, connecting the signal output end and receiving end to the chip microprocessor device,measuring the distance of the divider and the edge of the corn by controlling the ultrasonic sensor and compute the cutting breadth. The chip microprocessor device comprises drive circuit, multi-line selector, buffer, head amplifier, electronic switch programmable amplifier, comparator, trigger control cell, heat balance, frequency generator and micro-processing unit.
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