Invention Application
- Patent Title: GAS MEASUREMENT DEVICE AND MEASUREMENT METHOD THEREOF
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Application No.: US15797078Application Date: 2017-10-30
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Publication No.: US20180052129A1Publication Date: 2018-02-22
- Inventor: Pasquale Biancolillo , Angelo Recchia , Pasquale Franco , Antonio Cicero , Giuseppe Bruno
- Applicant: STMicroelectronics S.r.l.
- Applicant Address: IT Agrate Brianza
- Assignee: STMicroelectronics S.r.l.
- Current Assignee: STMicroelectronics S.r.l.
- Current Assignee Address: IT Agrate Brianza
- Priority: ITMI2014A001197 20140702
- Main IPC: G01N27/12
- IPC: G01N27/12 ; G01N27/18

Abstract:
A gas measurement device measures gas using a gas sensor including a sense resistance exposed to the gas and a reference resistance not exposed to the gas. The gas measurement device applies a first current value and a second current value to the sensor. A detector functions to detect a first resistance variation and a second resistance variation of the sense resistance exposed to the gas with respect to the reference resistance as a function of the first current value and the second current value, respectively. The resistance variation dependent on relative humidity is then determined as a function of the first and second resistance variations and a first constant. The resistance variation dependent on gas content is then determined as a function of the first and second resistance variations and a second (different) constant.
Public/Granted literature
- US10451575B2 Gas measurement device and measurement method thereof Public/Granted day:2019-10-22
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