The present disclosure discloses a deformation sensor and device for measuring the load of a wheel hub of a vehicle, and an automobile. The deformation sensor includes: a metal lining fixed on the surface of the wheel hub, and a resistance strain gauge fixed on the metal lining. The resistance strain gauge is fixed on the metal lining through a structural adhesive.

A pressure sensing device includes a substrate, at least a pressure sensing module, and a packaging layer. The pressure sensing module is arranged at the substrate including a plurality of conductive units, a plurality of pressure sensing blocks and a plurality of buffer units. Each conductive unit has a first electrode and a second electrode. The pressure sensing blocks are respectively arranged at the conductive units. Each pressure sensing block has a circuit structure that electrically connects the first electrode and the second electrode of each corresponding conductive unit. Each buffer unit is arranged between each corresponding conductive unit and each corresponding pressure sensing block comprising a plurality of buffer bumps arranged in an array at the first electrode and the second electrode of each corresponding conductive units. The packaging layer is bonded to the substrate, the conductive units and the pressure sensing blocks.

In a Force/Torque sensor employing strain gages, a hardware temperature compensation procedure substantially eliminates thermal drift of a plurality of load-sensing strain gages with changes in temperature, using trimming resistors and a single, unstressed strain gage. The strain gages are connected in a quarter-bridge configuration, in multiple parallel stages. An unstressed strain gage in quarter-bridge configuration is connected in parallel. Trimming resistors are added across one or more of the unstressed and load-sensing strain gages in a compensation procedure that substantially eliminates thermal drift of the load-sensing strain gages over a predefined temperature range.

There is provided a flexure body configured to be used in detection of load applied in first direction and a load applied in second direction orthogonal to the first direction. The flexure body including: a flexure member; and a circuit pattern. The flexure member has a flexure area configured to be strained under load from detection object and an area different from the flexure area. The circuit pattern includes two pieces of first-direction strain sensitive elements, two pieces of second-direction strain sensitive elements, and at least one of a first-direction fixed resistance element and a second-direction fixed resistance element. Two pieces of first-direction strain sensitive elements and two pieces of second-direction strain sensitive elements are provided in the flexure area, and the at least one of the first-direction fixed resistance element and the second-direction fixed resistance element is provided in the area different from the flexure area.

There is provided a pressure sensing device including a plate-shaped member, plural strain sensitive materials arranged on the plate-shaped member, and a connection electrode electrically connected to a predetermined circuit. The plate-shaped member includes a surface portion having a center portion that receives force applied to a tip portion of a stylus. The plural strain sensitive materials include first and second strain sensitive materials arranged at different distances from the center portion of the surface portion of the plate-shaped member. The plural strain sensitive materials are formed on at least one surface portion of the plate-shaped member along with a conductive pattern that connects the first and second strain sensitive materials. The connection electrode is electrically connected to the plural strain sensitive materials, and the connection electrode is crimped and electrically connected to the predetermined circuit housed in the stylus.

The present disclosure relates to systems and methods for measuring the location, the amplitude, and/or the direction of forces applied to a walking or running surface. An example system includes a pressure-sensitive sheet that extends along a first axis. The pressure-sensitive sheet includes a top surface and a bottom surface. A vertical force applied at a location along at least one of the top surface or the bottom surface forms an electrical path between the top surface and the bottom surface having a resistance, r.sub.f, that is inversely proportional to an amplitude of the vertical force. The system further includes read out circuitry configured to provide information indicative of the amplitude of the vertical force and the location of the vertical force along the first axis of the pressure-sensitive sheet.

A pressure detecting circuit may include a pressure sensing circuit (101), a signal generating circuit (102), and a frequency detecting circuit (103). The pressure sensing circuit (101) and the signal generating circuit (102) may be configured to constitute an oscillating circuit (104). The signal generating circuit (102) may be configured to generate an oscillating signal based on a pressure sensed by the pressure sensing circuit (101). The frequency detecting circuit (103) may be configured to detect a frequency of the oscillating signal and determine a value of the pressure sensed by the pressure sensing circuit (101) based on the frequency of the oscillating signal.

A force sensor includes a first structure, four strain generation parts, and a second structure. The first structure is formed in such a way that a third axis penetrates therethrough. The four strain generation parts are provided along first and second axes on a reference plane formed by the first and second axes. The second structure is connected to the first structure with the strain generation parts interposed therebetween. The strain generation parts each includes a first beam part extending along the first axis or the second axis, and a second beam part extending in a direction orthogonal to the first beam part and connected to the first beam part at an intermediate part. The strain generation parts are formed in such a way that they are line-symmetric with respect to both the first axis and the second axis when projected in a direction of the third axis.

A pressure transducer is disclosed that includes an absolute pressure sensor assembly, a differential pressure sensor assembly, a main pressure port in communication with the absolute pressure sensor assembly and the differential pressure sensor assembly, a reference pressure port in communication with the differential pressure sensor assembly, and a compensation circuit in communication with the absolute pressure sensor assembly and the differential pressure sensor assembly. The compensation circuit is configured to reduce an error in an output of the differential pressure sensor assembly (due to absolute pressure) by at least a portion of an output received from the absolute pressure sensor assembly.

Embodiments of the present disclosure relate to a method (100) in particular for checking a mechanical stress acting on an inductive component (210). The method (100) comprises sensing (110) one or more measured quantities dependent on the mechanical stress when an electrical excitation signal is applied to the inductive component (210). Further, the method (100) comprises determining (120) the mechanical stress acting on the inductive component (210) based on the one or more sensed measured quantities.