发明名称 |
Automatic leak detector |
摘要 |
A method and apparatus are provided for automatically compensating for gain variations, component aging and drift characteristics of an associated circuit when trying to detect a leak. In the preferred embodiment an analog to digital converter will convert an analog signal from a sensor to a digital representation. A microprocessor will read the digital representation and compute the percentage change of the difference in values of the digital representations. Wherever the percentage change is greater than a threshold value, the microprocessor will activate an alarm to inform the user.
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申请公布号 |
US5264833(A) |
申请公布日期 |
1993.11.23 |
申请号 |
US19910723463 |
申请日期 |
1991.06.28 |
申请人 |
JEFFERS, EDWARD;SACERIO, JOSE L. |
发明人 |
JEFFERS, EDWARD;SACERIO, JOSE L. |
分类号 |
G01N33/00;G08B29/18;(IPC1-7):G08B17/10 |
主分类号 |
G01N33/00 |
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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