SENSING DEVICES AND CALIBRATION METHOD THEREOF

    公开(公告)号:US20220074903A1

    公开(公告)日:2022-03-10

    申请号:US17125968

    申请日:2020-12-17

    Abstract: A sensing device is provided. The sensing device includes a processing circuit and a multi-sensor integrated single chip. The multi-sensor integrated single chip includes a substrate and a temperature sensor, a pressure sensor, and an environmental sensor disposed on the substrate. The temperature sensor senses temperature. The pressure sensor senses pressure. The environmental sensor senses an environmental state. The processing circuit obtains a first sensed temperature value from the temperature sensor when the environmental sensor does not operate, and it obtains a second sensed temperature value from the temperature sensor when the environmental sensor operates. The processing circuit obtains a sensed pressure value from the pressure sensor. The processing circuit obtains at least one temperature calibration reference of the pressure sensor according to the first and second sensed temperature values and calibrates the sensed pressure value according to the temperature calibration reference.

    SENSING DEVICES
    2.
    发明申请

    公开(公告)号:US20210018376A1

    公开(公告)日:2021-01-21

    申请号:US16886036

    申请日:2020-05-28

    Abstract: A sensing device is provided. The sensing device includes a plurality of infrared thermosensitive elements and a plurality of resistor-capacitor (RC) oscillators. The plurality of infrared thermosensitive elements are arranged in an array. Each of the plurality of infrared thermosensitive elements has a resistance value which changes with a temperature of the infrared thermosensitive element by absorbing infrared radiation and generates a sensing voltage corresponding to the resistance value. The plurality of RC oscillators are coupled to the plurality of infrared thermosensitive elements to receive the corresponding sensing values, respectively. Each of the plurality of RC oscillators generates a digital sensing signal according to the corresponding sensing value to indicate the temperature of the corresponding infrared thermosensitive element. Each of the plurality of RC oscillators is disposed under the corresponding infrared thermosensitive element.

    RESISTIVE GAS SENSOR AND GAS SENSING METHOD THEREFOR

    公开(公告)号:US20190154604A1

    公开(公告)日:2019-05-23

    申请号:US15856012

    申请日:2017-12-27

    Abstract: A resistive gas sensor is provided. The resistive gas sensor includes a sensing circuit and a determination circuit. The sensing circuit senses a gas to generate a detection signal. The determination circuit performs a frequency-division operation on the detection signal by a frequency-division parameter to generate a frequency-division signal, counts a half of a period of the frequency-division signal to generate a half-period count value, and determines concentration of the gas according to the half-period count value. The determination circuit determines the frequency-division parameter according to the half-period count value.

    OPTICAL ENCODER
    4.
    发明申请

    公开(公告)号:US20210199474A1

    公开(公告)日:2021-07-01

    申请号:US16879312

    申请日:2020-05-20

    Abstract: An optical encoder includes an encoding disk and an optical detector disposed to correspond to the encoding disk. The optical detector includes a plurality of optical sensors arranged to form an optical sensor array. The optical detector is provided to receive light. The optical detector includes at least one optical sensor arranged to form at least one sensor array. The width of the sensor array corresponds to an interpolation period of the optical encoder.

    GAS SENSING DEVICE AND GAS CONCENTRATION SENSING METHOD

    公开(公告)号:US20210190744A1

    公开(公告)日:2021-06-24

    申请号:US16879340

    申请日:2020-05-20

    Abstract: A gas sensing device is adapted to detect a concentration of a target gas. The gas sensing device comprises a dielectric layer, a reference sensing portion, a target sensing portion, and a controller. The dielectric layer is disposed on a surface. The reference sensing portion and the target sensing portion are respectively disposed on a supporting side of the dielectric layer, with said supporting side facing away from the surface. The reference sensing portion includes a first conductive layer and a first sensing layer with low sensitivity to the target gas. The target sensing portion includes a second conductive layer and a second sensing layer with high sensitivity to the target gas. The controller obtains the immittance values of the first conductive layer and the second conductive layer, and calculates a concentration value of the target gas according to the immittance values and a correlation function.

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