21 results about "Force-sensing resistor" patented technology

A sensor device 11 for a magnetic filter 10, converting an analogue signal therefrom to find and relay a filter status by interrogation of an electrically connected reference data library providing the correlation therebetween. A temperature sensor (50, fig 6) may be included. A user interface and LED display may be included. The filter may have an elongate magnetic core 12. The force sensing resistor may comprise a multilayer assembly made of at least two layers of flexible printed piezoelectric ink (31, 32a, 32b, 33, fig 4). The change in a force responsive sensor 25 may be measured. A time period remaining for saturation and / or the saturation point may be predicted via a counting process and / or a machine self-learning configuration. The system is designed to provide an indication of the status of contaminant capture in a magnetic filtration device with a sensor and data processing electronic components to calculate real-time a requirement for purging / cleaning of a filtration device prior to and / or at saturation.

An apparatus is provided for detecting fluid low-volume and occlusion in a device using a sensor. One or more force sensing resistors are positioned in communication with a fluid channel at one or more of a pump intake and pump outlet to detect pressure in the fluid channel. The pressure is detected through communication with the force sensing resistor and indicates an irregular system condition including but not limited to, fluid low-volume level and occlusion. Also provided are a fluid flow sensor (e.g., FSR or MEMS sensor) disposed relative to an embedded fluid channel in the base of a wearable medicine delivery pump.

The utility model discloses a single-chip triaxial MEMS (Micro Electro Mechanical System) gyroscope which comprises four vibration mass blocks, a spring beam, a surface doped sensing beam, a side doped sensing beam, a driving electrode and a detection electrode, force sensing resistors are formed on the surfaces of the surface doped sensing beams through doping, force sensing resistors are formed on the side faces of the side face doped sensing beams through doping, and in-plane and out-of-plane deformation of the sensing beams caused by the Coriolis force is detected through changes of the force sensing resistors of the surface doped sensing beams and the force sensing resistors of the side face doped sensing beams respectively. Therefore, angular velocities in different axial directions can be detected. The three-axis angular velocity measurement is realized in a single chip, and compared with a capacitive MEMS gyroscope, the three-axis angular velocity measurement device is simple in structure and relatively low in processing precision requirement, and has certain practicability.

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.

A force sensing module is provided. The force sensing module includes: a first flexible circuit board, a substrate, and a second flexible circuit board stacked in sequence. The substrate includes a first surface and a second surface opposite to the first surface, and the first surface is provided with a first groove. A first force sensing resistor and a second force sensing resistor are disposed on a first side of the first flexible circuit board facing the first surface. A third force sensing resistor corresponding to the first force sensing resistor and a fourth force sensing resistor corresponding to the second force sensing resistor are disposed on a second side of the second flexible circuit board facing the second surface. The four resistors form a Wheatstone bridge structure. The force sensing module includes a detection circuit, configured to detect a differential voltage of the Wheatstone bridge structure.

A detection device (32) for detecting a thermal runaway condition in a rechargeable automotive traction battery, the rechargeable automotive traction battery comprising a closed traction battery housing (10) for accommodating at least a plurality of rechargeable electrochemical energy cells and provided with a safety relief valve (22). The detection device (32) comprises a force sensing resistor (34). The force sensing resistor (34) comprises: a flexible substrate (38) separated by a spacer member (40) and defining a force sensitive region (36); and a vent tube (42) connecting an exhaust outlet (44) and a space between the two substrates (38). At least the force sensitive region (36) of the force sensing resistor (34) is positionable inside the traction battery housing (10), and the exhaust outlet (44) is fluidly connectable to a detection zone (24) of an interior space (18) of the traction battery housing (10), the detection zone (24) being located near the safety relief valve (22).

An information handling system includes a chassis, a filter, a force sensing resistor, and a baseboard management controller. The chassis includes a bezel. The filter is in physical communication with the bezel of the chassis. The force sensing resistor is in physical communication with the bezel and with the filter. The baseboard management controller communicates with the force sensing resistor and receives a voltage level from the force sensing resistor. Based on the voltage level, the baseboard management controller determines a clogged level for the filter. The baseboard management controller determines whether the clogged level is greater than a threshold level. In response to the clogged level being greater than the threshold level, the baseboard management controller determines that the filter needs to be replaced and provides a filter clogged message.

The invention relates to a pressure sensor, a pressure detection method and a preparation method of the pressure sensor. The pressure sensor comprises a chip body and a plurality of force sensing resistors. The plurality of force sensitive resistors form two Wheatstone bridge circuits; wherein at least one of the two Wheatstone bridge circuits is a Wheatstone full bridge; the two Wheatstone bridge circuits are arranged on the chip body according to stress distribution on the surface of the chip body; the two Wheatstone bridge circuits comprise input pins and output pins; the output pins of the two Wheatstone bridge circuits serve as the output pins of the pressure sensor and output a first voltage and a second voltage respectively. The outputs of the two Wheatstone bridges are used as the output of the pressure sensor, so that not only can the pressure applied to the measured curved surface be obtained, but also the curvature of the curved surface can be obtained, and therefore, the accuracy of current pressure detection of the pressure position to be detected is higher.

To more facilitate user operation of a VR system.SOLUTION: A logic of a handheld controller may implement a sensor fusion algorithm based on force data provided by a force sensing resistor (FSR) in combination with touch data or proximity data provided by an array of a touch sensor or proximity sensor, respectively. By using an example of a sensor fusion algorithm, the logic can recalibrate the FSR when an object comes into contact with an associated control as detected by the touch sensor, can ignore a false input detected by the FSR when an object is in contact with an adjacent control, detects a hand size of a hand gripping a handle of the controller that is detected by the array of the proximity sensor, and can adjust threshold force for registering an FSR input event at the FSR according to the hand size.SELECTED DRAWING: Figure 24

A surgical robotic arm includes a first link and a second link, wherein at least one of the first link or second link is movable relative to each other. The surgical robotic arm also includes a sensor assembly coupled to at least one of the first link or the second link. The sensor assembly includes a force sensing resistor assembly configured to measure force and an interface member disposed over the force sensing resistor assembly, the interface member configured to engage the at least one force sensing resistor assembly due to the interface member contacting an obstruction.

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.

The utility model provides a simple cast-in-place continuous beam hollowing prevention real-time observation device, and relates to the field of building construction monitoring, the simple cast-in-place continuous beam hollowing prevention real-time observation device comprises a plurality of force sensing resistors with sensing surfaces arranged at the inner side of a pouring template, and the plurality of force sensing resistors are distributed at the upper part of a box beam chamfering template, a manhole bottom template and the like; the force-sensitive resistor is connected with a light-emitting part and a power source in series, the resistance of the force-sensitive resistor is close to infinite when no pressure exists, the resistance is gradually reduced when the force-sensitive resistor is pressed, and the light-emitting part and the power source are arranged on the outer side of a pouring formwork. According to the device, the change of the brightness of the light-emitting part is converted through the force-sensitive resistor, the concrete pouring condition, which cannot be observed, in the formwork such as a chamfering formwork in the formwork can be reflected in real time through the brightness condition of the light-emitting part on site, response can be made in time in the construction process through real-time observation, the trouble of post-treatment is reduced, and the construction efficiency is improved. And meanwhile, the construction quality is also ensured.

The invention discloses a container crane for production and transportation of large-size casting parts, and relates to the technical field of cranes. The device comprises a base, a stress platform, a steel wire reel and a multi-stage safety protection system. A stress platform is arranged on the base in a sliding mode, the swing direction and degree of a hoisted object are monitored in real time through a force sensing resistor and an extrusion block, and accurate data are provided for operation. The steel wire reel is controlled by a driving motor to rotate through a worm gear and a worm, a centrifugal clamping locking mechanism for limiting a swing block and a limiting ring disc is arranged, and when self-locking fails, the reel is prevented from rotating rapidly. If locking fails, the driven roller rotates at a high speed to trigger friction between the electromagnet disc and the friction disc to slow down, and the falling speed of the hoisted object is slowed down. The dustproof cover and the balls are matched to reduce abrasion and prolong the service life of equipment.

An information handling system includes a chassis, a filter, a force sensing resistor, and a baseboard management controller. The chassis includes a bezel. The filter is in physical communication with the bezel of the chassis. The force sensing resistor is in physical communication with the bezel and with the filter. The baseboard management controller communicates with the force sensing resistor and receives a voltage level from the force sensing resistor. Based on the voltage level, the baseboard management controller determines a clogged level for the filter. The baseboard management controller determines whether the clogged level is greater than a threshold level. In response to the clogged level being greater than the threshold level, the baseboard management controller determines that the filter needs to be replaced and provides a filter clogged message.

The invention discloses a complex part density measurement system, and relates to the technical field of density detection. Through cooperation of the supporting conductive disc and the conductive sliding needle, the whole process of automatic detection of parts is realized. After the part is moved to the position above the water pool, the weight and density of the part can be accurately measured through dual detection of the force sensing resistor and the weighing module, errors caused by manual operation are avoided, and the detection precision and efficiency are improved; the design of the permanent magnet friction block and the ratchet mechanism is adopted, and the falling speed of the part is controlled, so that water splashing and measurement errors caused by the fact that the part rapidly sinks into water are avoided. The permanent magnet friction block limits the rotating speed of the outer ratchet wheel, so that the part stably and slowly enters water, and the stability of the measurement process and the accuracy of data are ensured; through overall coordination and cooperation, the density of a large number of parts can be detected in batches, and when the device is applied to factory part production, the ex-factory qualification rate of the parts can be effectively guaranteed.

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.

Logic of a handheld controller can implement sensor fusion algorithms based on force data provided by a force sensing resistor (FSR) in combination with touch data or proximity data provided by a touch sensor or an array of proximity sensors, respectively. An example sensor fusion algorithm can be used to re-calibrate the FSR when an object contacts an associated control, as detected by the touch sensor. Another example sensor fusion algorithm can be used to ignore spurious inputs detected by the FSR when an object is in contact with an adjacent control. Another example sensor fusion algorithm can be used to detect a hand size of a hand grasping a handle of the controller, as detected by the array of proximity sensors, and to adjust the threshold force to register a FSR input event at the FSR according to the hand size.

A detection device (100; 200; 300) for detecting a thermal runaway condition in a rechargeable automotive traction battery, the rechargeable automotive traction battery comprising a closed traction battery housing (10; 40) for housing at least a plurality of rechargeable electrochemical energy cells, the detection device (100; 200; 300) comprising a force sensing resistor (22). The force sensing resistor (22) comprises a vent outlet (28) and flexible substrates (24) separated by a spacer member (26). If the force sensing resistor (22) is located inside the traction battery housing (10; 40), the vent outlet (28) is fluidly connectable to an exterior space (20) of the traction battery housing (10; 40). If the force sensing resistor (22) is located outside the traction battery housing (10; 40), at least one of the flexible substrates (24) is operably connectable to an interior space (18) of the traction battery housing (10; 40).

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.

Logic of a handheld controller can implement sensor fusion algorithms based on force data provided by a force sensing resistor (FSR) in combination with touch data or proximity data provided by a touch sensor or an array of proximity sensors, respectively. An example sensor fusion algorithm can be used to re-calibrate the FSR when an object contacts an associated control, as detected by the touch sensor. Another example sensor fusion algorithm can be used to ignore spurious inputs detected by the FSR when an object is in contact with an adjacent control. Another example sensor fusion algorithm can be used to detect a hand size of a hand grasping a handle of the controller, as detected by the array of proximity sensors, and to adjust the threshold force to register a FSR input event at the FSR according to the hand size.