发明名称 |
KOPPLINGSANORDNING FOR PULSBREDDSMETNING |
摘要 |
A pulse width measuring apparatus including a threshold-level trigger, which receives the pulses to be measured and a threshold voltage. At the instant at which the pulse voltage exceeds the threshold voltage the threshold-level trigger starts a time-measuring device which is arrested at the end of each pulse, so that the measured time indicates the pulse width. The threshold voltage is supplied by the tapping of a voltage divider which is connected to the output of a sample and hold circuit that is triggered after the end of the rising flank of each pulse to sample and store the value of the pulse amplitude. According to a preferred embodiment, a similar arrangement is provided for arresting the time-measuring device when the pulse voltage falls below a second threshold voltage. |
申请公布号 |
SE7807334(A) |
申请公布日期 |
1978.12.30 |
申请号 |
SE19780007334 |
申请日期 |
1978.06.28 |
申请人 |
* ENDRESS + HAUSER GMBH + CO |
发明人 |
W * SARTORIUS;D J R * STOCK |
分类号 |
G01R29/02;(IPC1-7):G01R29/02 |
主分类号 |
G01R29/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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