DIFFERENTIAL PRESSURE SENSOR WITH RFID TAG
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United States of America Patent
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Jul 15, 2021
app pub date -
Jan 9, 2020
filing date -
Jan 9, 2020
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Abstract
A differential pressure sensor with wireless RFID communication ability senses and records a specified differential pressure threshold without great energy consumption and without requiring direct access or visual inspection of the sensing element. The differential pressure sensor includes a sensing element sensing a differential pressure between a low pressure side and a high pressure side and a RFID tag comprising a tag antenna, a tag integrated circuit (IC) and a tamper loop connected to the tag IC for tracking a specific differential pressure threshold of the differential pressure sensor. The RFID tag is connected to the sensing element in such a way that the tamper loop is triggered if the specific differential pressure threshold has been reached.
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