| Patents for G01L 1 - Measuring force or stress, in general (22,371) |
|---|
| 04/16/1991 | US5007265 Optical monitor for superplastic forming |
| 04/10/1991 | EP0421401A1 Mechanical/electrical displacement transducer |
| 04/10/1991 | CN1050615A Vernier voltage to digital converter |
| 04/09/1991 | US5005429 A strain gage transducer |
| 04/02/1991 | US5004985 Method and apparatus for testing the response of a stress wave sensor |
| 04/02/1991 | US5004912 Fiber-optical pressure sensor with contacting lightwave conductors |
| 04/02/1991 | US5004059 Stress wave load cell |
| 03/30/1991 | WO1991005267A1 Vernier voltage-to-digital converter |
| 03/27/1991 | EP0419267A1 Signal sensing and measuring in fibre optic systems |
| 03/27/1991 | EP0419129A1 Crimp height monitor |
| 03/27/1991 | EP0418490A2 Dynamometer |
| 03/27/1991 | CN1012215B Ultrasonic axial stress gage |
| 03/21/1991 | WO1991003716A1 Tuning fork force sensor |
| 03/21/1991 | WO1991003705A1 Improvements in or relating to a method and apparatus for measuring shear force |
| 03/20/1991 | EP0418202A2 Optical sensor with intermodal interferometry |
| 03/20/1991 | EP0417848A1 Polarimetric fibre-optic sensor |
| 03/19/1991 | US5001454 Chromium, oxygen and a metal or semiconductor film as a resistor |
| 03/19/1991 | US5000817 Batch method of making miniature structures assembled in wafer form |
| 03/13/1991 | CN2073113U Tester for hand pulling force |
| 03/06/1991 | EP0415251A1 Circuit for processing signals supplied by two sensors, which measure differentially a physical quantity |
| 03/06/1991 | EP0414784A1 Improvements relating to linear movement sensors |
| 03/06/1991 | CN2072681U Taper image light carrier for measuring main stress direction |
| 03/06/1991 | CN1049718A Strain test element and pressure transducer using it |
| 03/06/1991 | CN1049717A Enclosed moment-insensitive load cell |
| 03/05/1991 | US4998179 Capacitive semiconductive sensor with hinged diaphragm for planar movement |
| 03/05/1991 | US4996884 Light waveguide sensor for small pulling or pressing forces |
| 03/05/1991 | US4996882 Miniature strain sensor |
| 02/28/1991 | DE4025353A1 Wedge-shaped or conical force measuring element - measures forces perpendicular to sensor surfaces during application and in steady state, e.g. for monitoring machine tools |
| 02/27/1991 | CN2072222U Contact pressure measurer |
| 02/26/1991 | US4996511 Pressure-sensitive resistance element |
| 02/26/1991 | US4996419 Distributed multiplexed optical fiber Bragg grating sensor arrangeement |
| 02/26/1991 | US4995267 Method of monitoring the state of elongated object and apparatus for performing this method |
| 02/26/1991 | US4995261 Field-based movement sensing apparatus |
| 02/21/1991 | WO1991002219A1 Circuit arrangement for temperature-independent amplification of a differential voltage |
| 02/21/1991 | DE4022697A1 Pressure or acceleration sensor esp. for vehicle engine control - has simple detector with signal processing, contg. sensor characteristic adjustment mechanism |
| 02/19/1991 | US4993506 Mass-produced flat one-piece load cell and scales incorporating it |
| 02/19/1991 | US4993266 Semiconductor pressure transducer |
| 02/14/1991 | DE4015819A1 Mechanical force sensor as vehicle acceleration sensor |
| 02/13/1991 | EP0412325A1 Enclosed moment-insensitive load cell |
| 02/13/1991 | EP0412304A2 Force transducer with measuring band attachment |
| 02/13/1991 | EP0412140A1 Electrostatically driven dual vibrating beam force transducer. |
| 02/13/1991 | CN2071337U Steel tube type three shaft strain gauge |
| 02/13/1991 | CN2071336U Oil diaphragm press head |
| 02/13/1991 | CN1011619B Arrangement for measuring internal inertia pressure of double screw extrude |
| 02/12/1991 | US4991283 Sensor elements in multilayer ceramic tape structures |
| 02/07/1991 | WO1991001111A1 Perimeter mounted polymeric piezoelectric transducer pad |
| 02/07/1991 | DE3925579A1 Circuit for differential capacitor contg. two partial capacitances - contains three controlled switches and sample-and-hold circuit |
| 02/07/1991 | DE3925177A1 Schaltungsanordnung zur temperaturstabilen verstaerkung einer differenzspannung Circuit arrangement for temperature-stable gain of a voltage difference |
| 02/07/1991 | DE3924629A1 Force measurement cell, pref. for weighing - has strain measurement elements on deformation ring protected by cover plate and connected in full bridge circuit |
| 02/06/1991 | EP0411117A1 Unitary push-pull force transducer |
| 02/06/1991 | EP0411077A1 Magnetically driven vibrating beam force transducers. |
| 02/06/1991 | CN1011496B Shank type of tridimensional dynameter using piezoelectric quartz for lathe turning |
| 02/05/1991 | US4991150 Dynamic mechanical stress trnasducer |
| 02/05/1991 | US4990815 Robot gripper control system using PYDF piezoelectric sensors |
| 02/05/1991 | US4990769 Continuous cable fiber optical pressure sensor |
| 02/05/1991 | CA1279887C Tape element and methods, for heating, pressure measurement and circuit fabrication |
| 01/30/1991 | EP0410197A1 Dynamometer, particularly for detecting the operating load of servo-controlled systems |
| 01/29/1991 | WO1991001681A1 Transducer with conductive polymer bridge |
| 01/29/1991 | US4987783 Sensor and transducer apparatus |
| 01/29/1991 | CA2063266A1 Transducer with conductive polymer bridge |
| 01/23/1991 | EP0409213A2 Amplifiying compensation circuit for semiconductor pressure sensor |
| 01/22/1991 | US4986671 Three-parameter optical fiber sensor and system |
| 01/22/1991 | US4986136 Measuring system |
| 01/22/1991 | US4986131 Semiconductor strain detector |
| 01/22/1991 | US4986130 Apparatus and method for monitoring stress as a coating is applied |
| 01/22/1991 | US4986118 Apparatus for measuring tire tread force and motion |
| 01/16/1991 | EP0407835A2 Atomic force microscope |
| 01/16/1991 | EP0407503A1 Drift compensated null point indication for a force measuring device. |
| 01/16/1991 | EP0407413A1 Manometric or dynamometric device. |
| 01/15/1991 | US4984863 Force meter with optical waveguide integrated in a substrate |
| 01/15/1991 | US4984467 Transducer for pressures and/or vibrations and method for manufacturing thereof |
| 01/15/1991 | CA2020761A1 Perimeter mounted polymeric piezoelectric transducer pad |
| 01/10/1991 | WO1991000504A1 Method and apparatus for detecting stress in an object |
| 01/09/1991 | EP0406335A1 Matched pairs of force transducers. |
| 01/09/1991 | CN2069171U Load cell of dioxide silicon isolation |
| 01/08/1991 | US4983034 Strain, optical fiber |
| 01/08/1991 | US4982684 Directional shock detector |
| 01/08/1991 | US4982613 Force sensor |
| 01/08/1991 | US4982612 Torque wrench with measurements independent of hand-hold position |
| 01/02/1991 | EP0406004A2 Method of introducing magnetic anisotropy into magnetic material |
| 12/29/1990 | WO1991000494A1 Sensor |
| 12/29/1990 | CA2062815A1 Sensor |
| 12/27/1990 | WO1990015976A1 Single diaphragm transducer with multiple sensing elements |
| 12/27/1990 | WO1990015973A1 Piezoelectric indicator of force |
| 12/27/1990 | EP0404242A1 Method and device based on fibre-optic interferometer sensors, for analyzing the dynamic deformation of a structure or its components |
| 12/27/1990 | EP0403550A1 Device for measuring and/or registering mechanical forces, and a method of manufacturing a measuring body for use in the device |
| 12/25/1990 | US4979580 Force measuring device with sensitivity equalization |
| 12/25/1990 | US4979395 Apparatus and method of forming a magnetic domain strain gage |
| 12/18/1990 | US4977775 Torque transducer |
| 12/13/1990 | DE4014205A1 Measuring force by sensor electrostatic force - contg. compensating pendulum pivoted between measuring and force compensating electrodes |
| 12/12/1990 | EP0402320A1 Transducer for measuring forces and manufacturing method for such a transducer |
| 12/12/1990 | EP0401635A2 Manufacturing method of a detector using resistance elements |
| 12/11/1990 | US4976160 Process for contactless measurement of mechanical stress and device for carrying out the same |
| 12/06/1990 | DE3917700A1 Piezoelectric sleeve for measuring blood pressure - enables blood pressure measurement without interrupting blood flow or inserting sensor in blood stream |
| 12/05/1990 | EP0401133A1 Strain gauge weighing apparatus |
| 12/05/1990 | EP0400939A2 Semiconductor sensor with vibrating element |
| 12/05/1990 | CN2066981U Suspending integrate ring type wear simulation test machine for engine cylinder jacket-piston ring |
| 12/04/1990 | US4974679 Load cell |
| 12/04/1990 | US4974596 Transducer with conductive polymer bridge |
| 12/04/1990 | US4974454 Force transducers for fitting in force plates |