Abstract:
A strain gauge collar includes at least one strain gauge installed on a base and at least one clamp on the base. The at least one clamp is configured to attach the strain gauge collar to a main steam line (MSL) as a single unit.
Abstract:
Die Erfindung betrifft eine Vorrichtung (1) zum Wandeln einer Kraft oder eines Drucks in ein elektrisches Signal, wobei die Vorrichtung (1) aufweist einen ersten Verformungskörper (10), insbesondere eine erste Membran (12), über den die Kraft oder der Druck in die Vorrichtung (1) einleitbar ist, und einen zweiten Verformungskörper (20), insbesondere eine zweite Membran (22), durch dessen Auslenkung die Kraft oder der Druck in ein elektrisches Signal wandelbar ist, und wobei der erste Verformungskörper (10) ein erstes Kraftübertragungsmittel (14) und der zweite Verformungskörper (20) ein zweites Kraftübertragungsmittel (24) aufweist zur Übertragung der Kraft von dem ersten Verformungskörper (10) auf den zweiten Verformungskörper (20), dadurch gekennzeichnet, dass das erste Kraftübertragungsmittel (14) an seinem von dem ersten Verformungskörper (10) entfernten Ende mit dem vom zweiten Verformungskörper (20) entfernten Ende des zweiten Kraftübertragungsmittels (24) fest verbunden ist, und dass über das erste und zweite Kraftübertragungsmittel (14, 24) sowohl Druck- als auch Zugkräfte von dem ersten Verformungskörper (10) auf den zweiten Verformungskörper (20) übertragbar sind sowie ein Verfahren zur Herstellung einer solchen Vorrichtung.
Abstract:
A differential force sensor method and apparatus for automatically monitoring manual injections through an intravenous line. The differential force sensor includes two piezoresistive sense die that are packaged in close proximity utilizing a number of packaging processes. The two piezoresistive sense die can be utilized to measure forces exerted on a diaphragm on either side of an orifice. The piezoresistive sense die can be packaged in close proximity to make intimate contact with the diaphragms on either side of the orifice. The differential force sensor further includes two plungers that make intimate contact with the diaphragm and transfer the force into the piezo-resistive sense dies. Additionally, one or more ASICs and microcontrollers can be utilized to provide thermal calibration and differential calculation.
Abstract:
A force sensor 1 includes: a force sensor chip 2 including an action portion 21, a connecting portion 23 on which strain resistive elements are disposed, and a support portion 22 for supporting the action portion 21 and the connecting portion 23; an attenuator 3 including an input portion 30 to which an external force is input, a fixing portion 32 for fixing the force sensor chip 2, and a transmission portion 31 for attenuating the external force and transmitting the attenuated external force to the action portion 21; a first glass member 11 disposed between the action portion 21 and the transmission portion 31 and a second glass member 12 disposed between the support portion 22 and the fixing portion 32, through which glass members 11, 12 the force sensor chip 2 and the attenuator 3 are joined. A single or more glass beams 13 joins the first glass member 11 and the second glass member 12 together as a single member.
Abstract:
A stress sensor which has a post 6 fixed to or integrated with the surface of an insulation substrate 1 and can determine the direction and magnitude of a stress applied to the post 6 from changes in the characteristics of a strain gauge 2 made by a stimulus to the strain gauge 2 caused by the stress, wherein a stress to the post 6 can be converted efficiently into changes in the characteristics of the strain gauge 2. Consequently, the stress sensor has a strain gauge 2-disposed member provided with a locally-easy-to-deform portion where the strain gauge 2 is disposed. The stain gauge 2 is a resistance element 8 and is disposed on the surface of the insulation substrate 1, the insulation substrate mainly contains a resin material, and the easy-to-deform portion is preferably a thin-wall portion 7.
Abstract:
The present invention is an improved compact load cell (10; 300), which is used on large vehicles and yet is easy to manufacture. The load cell (10; 300) comprises two rings (14, 16; 304, 306) having at least three tubes extending from the first ring (14; 304) to the second ring (16; 306). Sensors (30) are mounted on the tubes (21-18; 310) to measure strain of the load cell body (10; 300) in a plurality of directions. The load cell can further be mounted on a vehicle spindle (80) to measure forces and moments of a wheel assembly at the spindle (80) as a vehicle is operated.
Abstract:
A load cell capable of increasing a measurement accuracy and a reliability in strength by transmitting a vertical load acting on the load cell accurately to a straining body and effectively protecting the load cell against a horizontal force and a slantedly acting load without increasing the thickness of the load cell itself, a load receiving part (2) of the load cell (1) comprising a holder (2B) formed of a core part (2a) where a female screw (2M) is provided to connect it to a load table (11) and an elastic body (2b) formed so that it surrounds the core part (2a) and a load receiving part main body (2A) into which the holder (2B) is inserted.
Abstract:
The invention relates to a sensing element for measuring loads. According to the invention, the sensing element commprises: a strain transducer unit (1) measuring the strain in a structure, including a strain transducer element, such as a strain gauge element (6); and a protecting shell (2) inside which the strain transducer unit (1) is fitted and which protecting shell includes: a base plate (3), on top of which the strain transducer unit (1) is attached; and a protecting hood (4) which is fitted around the strain transducer unit (1), on top of the base plate (3). The protecting hood (4) is most advantageously filled with protecting material (5), such as silicon.