5 results about "Force-sensing resistor" patented technology

A system and method to alert a driver of a vehicle as a safety system for vehicle includes a force sensing resistor and a galvanic skin response sensor coupled to the steering wheel, and an alarm notification module. The alert system further includes a processing unit with a circuitry including instructions to receive initial conductance data and real-time conductance data from the galvanic skin response sensor, and real-time force data from the force sensing resistor; generate a mean data from the initial conductance data; apply an averaging filter to the real-time conductance data to generate filtered real-time conductance data; generate a first comparison between the real-time force data and a predefined threshold; generate a second comparison between the filtered real-time conductance data and the mean data; and activate the alarm notification module of the vehicle based on at least one of the first comparison and the second comparison.

An electronic keyboard module includes a keyboard bracket, a keyboard, a conductive film and a force sensing resistor circuit board. The keyboard includes plural keys and key height-limited posts disposed on lower surfaces of the keys. The conductive film includes an insulation layer and plural conductive regions. The conductive regions are spaced apart from each other and disposed on the insulation layer, and the insulation layer is located between the key height-limited posts and the conductive regions. The force sensing resistor circuit board includes plural electrode units disposed under the conductive regions. The conductive film is located between the keyboard and the force sensing resistor circuit board. When at least one of the keys is under a pressed state, the key height-limited post presses the conductive film, so that the conductive region corresponding to the key touches and is electrically connected to the electrode unit.

The application discloses a high-temperature pressure sensing chip based on a single crystal silicon wafer and a three-dimensional integration method, and a manufacturing process of the chip comprises a force sensing resistor manufacturing step, an insulation isolation step, a high-temperature-resistant electrode and interconnection manufacturing step, a pressure-sensitive diaphragm etching step and a bonding step. The application uses a method of etching an insulation isolation groove around the force sensing resistor, filling and covering an insulation layer and precisely etching a lower layer bulk silicon of the force sensing resistor, avoids the problem of failure of a traditional single crystal silicon pn junction isolation high-temperature leakage current, does not depend on expensive materials such as SOI wafers and silicon carbide wafers, uses a general single crystal silicon wafer to realize mutual insulation isolation between Wheatstone bridge force sensing resistors, and meets high-temperature working requirements. The proposed air-tight leadless bonding method based on a through silicon via further improves the reliability of the pressure sensing chip. Meanwhile, the manufacturing method is fully compatible with a silicon-based CMOS process, and on-chip system integration can be realized.

A printed electronic sensing device is provided for use with insole devices, gripping devices and other similar articles. The printed electronic sensing device is configured to measure force applied thereon and at least one of proximity and friction. In one form, the electronic sensing device includes a flexible, substantially planar substrate having a pair of opposed surfaces, including a first surface and an opposed second surface, at least one force sensing resistor (FSR) additively printed on the first surface, said FSR configured to sense pressure applied to the device, and at least one capacitive sensor additively printed on the second surface, said at least one capacitive sensor configured to sense at least one of sliding of an object across the second surface and proximity to the object relative to the second surface of the device.

A system and method to alert a driver of a vehicle as a safety system for vehicle includes a force sensing resistor and a galvanic skin response sensor coupled to the steering wheel, and an alarm notification module. The alert system further includes a processing unit with a circuitry including instructions to receive initial conductance data and real-time conductance data from the galvanic skin response sensor, and real-time force data from the force sensing resistor; generate a mean data from the initial conductance data; apply an averaging filter to the real-time conductance data to generate filtered real-time conductance data; generate a first comparison between the real-time force data and a predefined threshold; generate a second comparison between the filtered real-time conductance data and the mean data; and activate the alarm notification module of the vehicle based on at least one of the first comparison and the second comparison.