Water leakage monitoring apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 11, 2002
Grant Date -
N/A
app pub date -
Jun 23, 2000
filing date -
Jun 25, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A water leakage detecting apparatus is capable of detecting water leakage of a water pipe precisely and at low cost. The water leakage monitoring apparatus includes vibration/electric converter for converting an acoustic vibration transmitted to a water pipe into an electrical signal. A signal discriminator processes an output signal of the vibration/electric converter to detect a signal of a predetermined band being held below a predetermined level continuously beyond a continuing condition to generate a sound interruption detection signal. A counter counts the number of occurrences of the sound interruption detection signal.
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