Invention Grant
- Patent Title: Gas analyzer that detects gases, humidity, and temperature
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Application No.: US15213230Application Date: 2016-07-18
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Publication No.: US10429330B2Publication Date: 2019-10-01
- Inventor: Olivier Le Neel , Ravi Shankar , Shian Yeu Kam , Tien Choy Loh
- Applicant: STMicroelectronics Pte Ltd
- Applicant Address: SG Singapore
- Assignee: STMicroelectronics Pte Ltd
- Current Assignee: STMicroelectronics Pte Ltd
- Current Assignee Address: SG Singapore
- Agency: Seed IP Law Group LLP
- Main IPC: G01N27/12
- IPC: G01N27/12 ; G01N33/00

Abstract:
A miniature gas analyzer capable of detecting VOC gases in ambient air as well as sensing relative humidity and ambient temperature can be used to monitor indoor air quality. The VOC gas sensor is thermally controlled and can be tuned to detect a certain gas by programming an adjacent heater. An insulating air pocket formed below the sensor helps to maintain the VOC gas sensor at a desired temperature. A local temperature sensor may be integrated with each gas sensor to provide feedback control. The heater, local temperature sensor, gas sensor(s), relative humidity sensor, and ambient temperature sensor are in the form of patternable thin films integrated on a single microchip, e.g., an ASIC. The device can be incorporated into computer workstations, smart phones, clothing, or other wearable accessories to function as a personal air quality monitor that is smaller, more accurate, and less expensive than existing air quality sensors.
Public/Granted literature
- US20180017513A1 MINIATURE GAS ANALYZER Public/Granted day:2018-01-18
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