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
    • 2. 发明授权
    • Apparatus for measuring the rate of a watch
    • 用于测量手表速率的装置
    • US4083222A
    • 1978-04-11
    • US763677
    • 1977-01-28
    • Wladyslaw Stawiski
    • Wladyslaw Stawiski
    • G04D7/12H03K5/153G04F5/10
    • G04D7/1214H03K5/153
    • An apparatus for measuring the rate of a watch is disclosed including a sensing device for the signals produced by a watch to be checked, a selecting and pulse shaping circuit, and comparator means for comparing the repetition frequency of the measuring pulses with the frequency of standard pulses. The selecting and pulse shaping circuit is designed to constitute a monostable multivibrator the period of which is automatically adapted to the period of the signal to be measured. The selecting circuit is unsensitive to secondary and disturbing noise signals during a very high percentage of the time interval corresponding to the period to be measured and allows the checking of watches having frequencies between about 1 Hz and 32 kHz.
    • 公开了一种用于测量手表速率的装置,包括用于由待检查的手表产生的信号的感测装置,选择和脉冲整形电路,以及用于将测量脉冲的重复频率与标准频率进行比较的比较装置 脉冲。 选择和脉冲整形电路被设计成构成单稳态多谐振荡器,其周期自动适应于待测信号的周期。 在对应于待测周期的时间间隔的非常高的百分比期间,选择电路对次级和干扰噪声信号是不敏感的,并允许检查频率在约1Hz至32kHz之间的频率。