1.Understand the operation method of optoelectronics switch 2.The method understood to make use of optoelectronics to spread a feeling machine to measure electrical engineering to turn soon Two.The optoelectronics measures soon basic principle The optoelectronics measures soon basic electric circuit to be spread a feeling machine by the optoelectronics, count a machine and in fixed time the machine constitute.Fix a disk in being measured an electrical engineering principal axis while measuring, beat eyelet on the edge of disk.The red outside blast-off that spreads a feeling machine carries and receives to carry to pack in the disk of two measure, when the electrical engineering arouses a disk to turn to the position of having the bore red outside and only pass, red circumscribe to accept a tube to lead, output low electricity even.Red receive a tube to close while outside and only being held up, output Gao Dian Ping.Use to count a machine record in certain time inside spread the p

直流电机测速实验
................\直流电机测速实验.exe

................\直流电机测速实验.txt

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