会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 79. 发明专利
    • FAILURE DETECTOR FOR MACHINE
    • JPS5570729A
    • 1980-05-28
    • JP14589178
    • 1978-11-22
    • MITSUBISHI ELECTRIC CORP
    • MATSUMOTO YASUSHIMARUYAMA JIYUICHI
    • G01M99/00B21J7/00
    • PURPOSE:To make unnecessary the adjustment accompanied with the alteration of measuring period, by automatically correcting the reference value corresponding to the measuring period signal and compared with the measuring signal. CONSTITUTION:The measurement of acceleration detector 3 is started with the measurement start signal produced when the fixed metal piece 6 to the upper metal mold 4 passes down in front of the proximity switch 7, and the measurement is finished with the measurement end signal produced when the upper metal mold 4 passes through the dead point and the metal piece 6 passes up in front of the proximity switch 7. The gate circuit 11 is open between the measurement start signal and the measurement end signal and the pulse train from the pulse generator 10 is introduced to the counter 12. The reference value correction circuit 13 outputs the reference value corresponding to the measuring period automatically corrected by taking the content of the counter 12 as input. The measurement signal of the acceleration detector 3 and the reference value are compared at the comparison detector 14 to detect failure of machines. Thus, detection can be made independently of the alteration of the operation speed.