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公开(公告)号：US10935509B2
公开(公告)日：2021-03-02
申请号：US16786361
申请日：2020-02-10
申请人： INVENSENSE, INC.
发明人： Fang Liu , Peter Hartwell , Martin Lim , Yushi Yang
摘要： The present invention relates to methods for detecting gases in an environment using chemical and thermal sensing. In one embodiment, a method includes exposing a chemiresistor embedded within a sensor pixel to a gas in an environment; setting a heater embedded within the sensor pixel to a sensing temperature, the sensing temperature being greater than room temperature; measuring an electrical resistance of the chemiresistor in response to setting the heater to the sensing temperature; and in response to a difference between the electrical resistance of the chemiresistor and a reference electrical resistance being less than a threshold, supplying a fixed power input to the heater embedded within the sensor pixel and measuring a temperature of the sensor pixel relative to a reference temperature.
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公开(公告)号：US20200173946A1
公开(公告)日：2020-06-04
申请号：US16786361
申请日：2020-02-10
申请人： INVENSENSE, INC.
发明人： Fang Liu , Peter Hartwell , Martin Lim , Yushi Yang
摘要： The present invention relates to methods for detecting gases in an environment using chemical and thermal sensing. In one embodiment, a method includes exposing a chemiresistor embedded within a sensor pixel to a gas in an environment; setting a heater embedded within the sensor pixel to a sensing temperature, the sensing temperature being greater than room temperature; measuring an electrical resistance of the chemiresistor in response to setting the heater to the sensing temperature; and in response to a difference between the electrical resistance of the chemiresistor and a reference electrical resistance being less than a threshold, supplying a fixed power input to the heater embedded within the sensor pixel and measuring a temperature of the sensor pixel relative to a reference temperature.
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公开(公告)号：US10598621B2
公开(公告)日：2020-03-24
申请号：US15484864
申请日：2017-04-11
申请人： INVENSENSE, INC.
发明人： Fang Liu , Peter Hartwell , Martin Lim , Yushi Yang
摘要： The present invention relates to systems and methods for detecting gases in an environment using chemical and thermal sensing. In one embodiment, a method includes exposing a chemiresistor embedded within a sensor pixel to a gas in an environment; setting a heater embedded within the sensor pixel to a sensing temperature, the sensing temperature being greater than room temperature; measuring an electrical resistance of the chemiresistor in response to setting the heater to the sensing temperature; and in response to a difference between the electrical resistance of the chemiresistor and a reference electrical resistance being less than a threshold, supplying a fixed power input to the heater embedded within the sensor pixel and measuring a temperature of the sensor pixel relative to a reference temperature.
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公开(公告)号：US20180292338A1
公开(公告)日：2018-10-11
申请号：US15484864
申请日：2017-04-11
申请人： INVENSENSE, INC.
发明人： Fang Liu , Peter Hartwell , Martin Lim , Yushi Yang
摘要： The present invention relates to systems and methods for detecting gases in an environment using chemical and thermal sensing. In one embodiment, a method includes exposing a chemiresistor embedded within a sensor pixel to a gas in an environment; setting a heater embedded within the sensor pixel to a sensing temperature, the sensing temperature being greater than room temperature; measuring an electrical resistance of the chemiresistor in response to setting the heater to the sensing temperature; and in response to a difference between the electrical resistance of the chemiresistor and a reference electrical resistance being less than a threshold, supplying a fixed power input to the heater embedded within the sensor pixel and measuring a temperature of the sensor pixel relative to a reference temperature.
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