Abstract:
PROBLEM TO BE SOLVED: To provide a detector, an electronic apparatus and a robot having excellent durability and capable of detecting the direction and volume of an external pressure with high accuracy.SOLUTION: A detector comprises: a first substrate 10 having a plurality of pressure sensors 12 arranged around a reference point P; an elastic body projection 21 being substantially hemispheric, with a substantial center thereof in a position overlapping the reference point P, and to be elastically deformed by an external pressure; and a second substrate 30 arranged on an opposite side of the first substrate 10 with the elastic body projection 21 therebetween.
Abstract:
PROBLEM TO BE SOLVED: To provide an inexpensive sensor that can be realized by a simple means through the improvement of a sensor 10 for measuring a force 20. SOLUTION: A first closed volume 100 and a second closed volume 200 are provided, a pressure diaphragm 50 is provided, a pressure of the first closed volume 100 is adapted to act on a first surface of the pressure diaphragm 50, and a pressure of the second closed volume 200 is adapted to act on a second surface of the pressure diaphragm 50. A force 20 acts on a force diaphragm 22, a pressure within the first volume 100 is made so as to be independent of the force 20 that acts on the force diaphragm 22. COPYRIGHT: (C)2004,JPO
Abstract:
The invention relates to an optical sensor device comprising a reference body, an optical fiber including an intrinsic fiber optic sensor, and a hydraulic transmission system. The hydraulic transmission system is connected to the reference body such that an input portion and an output portion are movable with respect to the reference body. The optical fiber is connected with a first connecting portion to the output portion of the hydraulic transmission system and with a second connecting portion to an element exterior to the hydraulic transmission system. The intrinsic sensor is positioned between the first and second connecting portion. The input portion is arranged for receiving an input action and the hydraulic transmission system is arranged for converting the input action to a sensing action applied to the optical fiber by the output portion such as to modify strain in the optical fiber dependent on said input action.
Abstract:
A resistive microfluidic pressure sensor is provided which comprises a first layer comprising a microfluidic channel with a carbon-based conductive liquid and a second layer comprising at least two electrodes, the at least two electrodes being adapted to measure resistance of the carbon-based conductive liquid upon deformation of the microfluidic channel as a result of a change in force applied on a surface of the sensor.
Abstract:
Tension meter (82) for measuring a mechanical tension (F1) along a longitudinal direction (L) between a first element (84) and a second element (80) deployed in a well containing a fluid (50) having a fluid pressure, the tension meter comprising: - a bar (108) comprising a first portion (152), a second portion (154), and a measurement portion (156), and - a hollow member (110) defining a first chamber (169) surrounding the measurement portion, the bar being free to expand within the hollow member under the mechanical tension (F1 ) to be measured. The measurement portion includes at least one strain gauge (172). The tension meter includes first sealing elements for keeping the first chamber at a first chamber pressure, the measurement portion being subject to a compression force (F2) due to a difference between the fluid pressure and the first chamber pressure. The tension meter includes means for converting the fluid pressure into a traction force (F3) applied on the second portion (154), wherein the compression force (F2) and the traction force (F3) compensate. Related subassembly and method.
Abstract:
기체, 노즐에서 주수되거나 분사되는 액주 또는 분사수 등의 압력 인가체의 충돌(접촉)시 인가되는 압력에 대응하는 정성적 신호는 물론, 정량적 신호를 발생시키는 센서장치와 이를 포함하는 냉각설비의 성능 평가장치가 제공된다. 이와 같은 본 발명은 액체, 기체, 노즐의 액주 또는 노즐의 분사수 등의 충돌(접촉)시 인가되는 압력에 대응하는 정성적 신호는 물론, 정량적 신호와 데이터 구축을 가능하게 하고, 추가로 온도 변화에 따른 측정 에러를 방지시키고, 이를 기반으로 냉각설비의 성능(주수 또는 분사 상태)를 최소한 정량적으로 정밀하게 평가 가능하게 하여, 궁극적으로 냉각설비의 보수-유지와 가동성을 향상시키는 개선된 효과를 얻을 수 있다.
Abstract:
In a pressure sensor (35), a pressure-sensor element (10) has a monolithic body (12) of semiconductor material, and a first main face (12a) and a second main face (12b) acting on which is a stress resulting from a pressure (P) the value of which is to be determined; and a package (36) encloses the pressure-sensor element (10). The package (36) has an inner chamber (37) containing liquid material (38), and the pressure-sensor element (10) is arranged within the inner chamber (37) in such a manner that the first and second main faces (12a, 12b) are both in contact with the liquid material (38). In particular, the liquid material is a silicone gel.
Abstract:
A load cell for transmitting a signal depending on the force exerted thereon has an elastic element in the form of a rubber sleeve (11), which is in contact with a pressure transducer (14) and is enclosed in an annular compartment formed by an annular recess in a housing (2) and a corresponding recess in a rod (6), that is exposed to the force and extends into the housing. A ring (10, 12) is arranged at each end of the rubber sleeve to transmit forces in the two axial directions of the rod to the sleeve from the respective end shoulders (2', 3', 8', 9') of the recesses.