G01J5/12

MICRO-ELECTROMECHANICAL SYSTEM (MEMS) INTERFEROMETER FOR FT-MIR SPECTROSCOPY
20230136082 · 2023-05-04 ·

A microelectromechanical (MEMS) interferometer is provided. The MEMS interferometer includes a pair of movable mirrors that are positioned along perpendicular axes, wherein each of the pair of movable mirrors is coupled to a mechanism. The mechanism includes an electrostatic actuator driving a displacement amplification mechanism, and the displacement amplification mechanism driving each of the pair of the movable mirrors. The MEMS interferometer includes a beam splitter that is positioned at an intersection of the perpendicular axes extending through each movable mirror and the beam splitter. The MEMS interferometer also includes a metasurface microbolometer placed in line with the beam splitter to measure an intensity of a recombined beam from the pair of movable mirrors.

A SENSOR DEVICE
20230152157 · 2023-05-18 ·

The present invention is related to an application of a Single Pixel Thermopile (SPT). The invention provides a sensor device comprising a Single Pixel Thermopile and a controller, wherein the Single Pixel Thermopile is configured to monitor a detection region and to measure over time a temperature signal of said detection region; wherein the detection region is bounded by a surface and the Single Pixel Thermopile is oriented at an angle of at least 20 degrees normal to the surface; wherein a projection of the detection region onto the surface renders an elongated detection area with a length axis and a width axis; wherein the controller is configured to: obtain the temperature signal of the detection region; determine a movement characteristic of a person moving across said surface by detecting a pattern in the temperature signal of the detection region; output an output signal configured to control an electrical device upon determining the movement characteristic.

A SENSOR DEVICE
20230152157 · 2023-05-18 ·

The present invention is related to an application of a Single Pixel Thermopile (SPT). The invention provides a sensor device comprising a Single Pixel Thermopile and a controller, wherein the Single Pixel Thermopile is configured to monitor a detection region and to measure over time a temperature signal of said detection region; wherein the detection region is bounded by a surface and the Single Pixel Thermopile is oriented at an angle of at least 20 degrees normal to the surface; wherein a projection of the detection region onto the surface renders an elongated detection area with a length axis and a width axis; wherein the controller is configured to: obtain the temperature signal of the detection region; determine a movement characteristic of a person moving across said surface by detecting a pattern in the temperature signal of the detection region; output an output signal configured to control an electrical device upon determining the movement characteristic.

High-bandwidth thermoelectric thin-film UV, visible light and infrared radiation sensor and a method for manufacturing thereof

The invention relates to UV, visible light and infrared radiation sensors, in particular to high-bandwidth thin-film electromagnetic radiation sensors, operating using the principle of thermoelectric effect. According to one embodiment the sensor comprises: a thermoelectric active layer, an electrode layer one and an electrode layer two, wherein the electrode layer one is located below the thermoelectric active layer and the electrode layer two is located above the thermoelectric active layer, whereby the sensor is designed so that the thermal gradient can be created and the electrical voltage can be measured perpendicular to the thermoelectric active layer, between the electrode layer one and the electrode layer two, wherein the material of the thermoelectric active layer is low molecular weight organic compound, selected so that its thermal conductivity would be less than 1 W/(m K{circumflex over ( )}2), Seebeck coefficient modulus would be greater than 100 μV/K and its molecular weight is less than 900 Da.

High-bandwidth thermoelectric thin-film UV, visible light and infrared radiation sensor and a method for manufacturing thereof

The invention relates to UV, visible light and infrared radiation sensors, in particular to high-bandwidth thin-film electromagnetic radiation sensors, operating using the principle of thermoelectric effect. According to one embodiment the sensor comprises: a thermoelectric active layer, an electrode layer one and an electrode layer two, wherein the electrode layer one is located below the thermoelectric active layer and the electrode layer two is located above the thermoelectric active layer, whereby the sensor is designed so that the thermal gradient can be created and the electrical voltage can be measured perpendicular to the thermoelectric active layer, between the electrode layer one and the electrode layer two, wherein the material of the thermoelectric active layer is low molecular weight organic compound, selected so that its thermal conductivity would be less than 1 W/(m K{circumflex over ( )}2), Seebeck coefficient modulus would be greater than 100 μV/K and its molecular weight is less than 900 Da.

AUTO DETECTION SYSTEM FOR COOKING ASSISTANCE AND HAIR DRYER WITH THERMAL DETECTION

There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.

Packaging technologies for temperature sensing in health care products

Temperature sensor packages and methods of fabrication are described. The temperature sensor packages in accordance with embodiments may be rigid or flexible. In some embodiments the temperature sensor packages are configured for touch sensing, and include an electrically conductive sensor pattern such as a thermocouple or resistance temperature detector (RTD) pattern. In some embodiments, the temperature sensor packages are configured for non-contact sensing an include an embedded transducer.

Infrared thermopile sensor

An infrared thermopile sensor includes a silicon cover having an infrared lens, an infrared sensing chip having duo-thermopile sensing elements, and a microcontroller chip calculating a temperature of an object. The components are in a stacked 3D package to decrease the size of the infrared thermopile sensor. The infrared sensing chip and the microcontroller chip have metal layers to shield the thermal radiation. The conversion from wrist temperature to body core temperature uses detected ambient temperature and fixed humidity or imported humidity level to calculate the body core temperature based on experimental data and curve fitting. The skin temperature compensation can be set differently for different sex gender, different standard deviation of wrist temperature and external relative humidity reading.

Device and method for process control for surfaces with a low, unknown, and/or variable emissivity
11821794 · 2023-11-21 · ·

Devices and corresponding methods can be provided to monitor or measure temperature of a target or to control a process. Targets can have low, unknown, or variable emissivity. Devices and corresponding methods can be used to measure temperatures of thin film, partially transparent, or opaque targets, as well as targets not filling a sensor's field of view. Temperature measurements can be made independent of emissivity of a target surface by, for example, inserting a target between a thermopile sensor and a background surface maintained at substantially the same temperature as the thermopile sensor. In embodiment devices and methods, a sensor temperature can be controlled to match a target temperature by minimizing or zeroing a net heat flux at the sensor, as derived from a sensor output signal. Alternatively, a target temperature can be controlled to minimize the heat flux.

Device and method for process control for surfaces with a low, unknown, and/or variable emissivity
11821794 · 2023-11-21 · ·

Devices and corresponding methods can be provided to monitor or measure temperature of a target or to control a process. Targets can have low, unknown, or variable emissivity. Devices and corresponding methods can be used to measure temperatures of thin film, partially transparent, or opaque targets, as well as targets not filling a sensor's field of view. Temperature measurements can be made independent of emissivity of a target surface by, for example, inserting a target between a thermopile sensor and a background surface maintained at substantially the same temperature as the thermopile sensor. In embodiment devices and methods, a sensor temperature can be controlled to match a target temperature by minimizing or zeroing a net heat flux at the sensor, as derived from a sensor output signal. Alternatively, a target temperature can be controlled to minimize the heat flux.