Physical quantity measurement system
By combining temperature and humidity sensors, a heater, and a controller, the heater's state is controlled, solving the problem of condensation in the hygrometer under high humidity and achieving high-precision measurement of water vapor pressure in mixed gases.
CN120813833APending Publication Date: 2025-10-17PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
Patent Information
- Application Number
- CN202480016537.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-03-14
- Filing Date
- 2024-02-06
- Publication Date
- 2025-10-17
Smart Images
Figure CN120813833A_ABST
Abstract
The present disclosure addresses the problem of more accurately measuring vapor pressure in a mixed gas even when the mixed gas flows in a flow path in a high humidity environment. A physical quantity measurement system (1) is provided with a temperature / humidity sensor (16), a heat generation unit (17), a heat generation control unit (203), and a vapor pressure measurement unit (204). The heat generating unit (17) performs a heat generating operation to generate heat for heating the temperature / humidity sensor (16). A vapor pressure measurement unit (204) measures the vapor pressure of the vapor contained in the mixed gas. The heat generation control unit (203) performs on / off control on the heat generation unit (17) on the basis of a comparison result between a humidity measurement value measured by the temperature / humidity sensor (16) and a threshold value. A vapor pressure measurement unit (204) measures the vapor pressure of the vapor on the basis of the humidity measurement value and the temperature measurement value measured by the temperature / humidity sensor (16) regardless of the state of the heat generation unit (17).
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Citation Information
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