Patents for G01L 1 - Measuring force or stress, in general (22,371)
03/1989
03/21/1989US4813820 Method and apparatus for in situ assemblage of a strain sensor in erected structural elements
03/21/1989US4813286 Mechanical-electrical transducer
03/21/1989US4813271 Resonator device
03/16/1989EP0214183A4 Method for determining internal stresses in polycrystalline solids.
03/16/1989DE3729382A1 Optical sensor arrangement
03/16/1989DE3728936A1 Method and device for measuring structure loads
03/14/1989US4812800 Strain gage having a thin discontinuous metal layer
03/14/1989US4812645 Structural monitoring system using fiber optics
03/14/1989US4812199 Transuders, actuators
03/14/1989US4812036 Stress evaluation apparatus
03/14/1989US4811610 Weighing cell
03/14/1989US4811609 Torque detecting apparatus
03/14/1989US4811608 Force and torque converter
03/14/1989CA1251288A1 Piezoelectric pressure sensing apparatus for integrated circuit testing stations
03/09/1989WO1989002070A1 Device for non-contact measuring of stresses in a bar-shaped body
03/08/1989EP0305452A1 Force transmission element
03/08/1989EP0192722B1 Apparatus and method for static stress measurement in an object
03/07/1989US4810089 Photoelastic effect measuring device
03/01/1989CN2033507U Ultrasonic axial strero gauge
03/01/1989CN1031420A Method for nondestructive inspection of residual stress
02/1989
02/28/1989US4808549 Method for fabricating a silicon force transducer
02/28/1989US4808336 Disposable fuses
02/28/1989US4807950 Method for impressing gratings within fiber optics
02/28/1989US4807482 Method and apparatus for measuring stimuli applied to a piezoelectric transducer
02/28/1989CA1250466A1 Integrated optics stress transducer
02/23/1989WO1989001614A1 Discrete strain sensor
02/23/1989WO1989001613A1 Non-destructive determination of stress characteristics in magnetic materials
02/23/1989WO1989001611A1 Dynamometer
02/22/1989EP0303875A2 Si crystal force transducer
02/22/1989CN1031278A Photo elasticity plasticity simulative method for hot-forming of metallic component
02/21/1989US4806755 Micromechanical atomic force sensor head
02/21/1989US4805461 Transducer and systems for high speed measurement of shock loads
02/16/1989DE3725917A1 Trailer hitch for motor vehicles
02/09/1989WO1989001138A1 Method of measuring contact stress with ultrasonic wave
02/08/1989EP0302437A2 Force measuring device
02/08/1989CN2032318U Strain type three dimensional tactile sensor for robot contingency meeting type
02/07/1989US4802540 Electronic weighing scales
02/07/1989US4802371 Measuring forces and torques in metal)cutting operations
02/07/1989US4802368 Magnetoelastic force transducer
02/01/1989EP0301604A2 Apparatus for coating a substrate by plasma-chemical vapour deposition or cathodic sputtering, and process using the apparatus
02/01/1989EP0301109A1 Force transducer for measuring pressure and/or tensile forces
01/1989
01/31/1989US4800760 Force measuring device with an electromechanical transducer
01/31/1989CA1249645A1 Apparatus for indicatng positions
01/25/1989EP0300196A1 Transducer for length or distance variations, especially for the contactless measurement of torque in rotating axes
01/24/1989US4799381 Vehicle road sensor
01/24/1989US4799301 Method of making an oscillating crystal force transducer
01/24/1989CA1249307A1 Creep compensated weighing apparatus
01/18/1989CN2031093U Blanket contacting and pressing sensor
01/18/1989CN1030475A Strain differential capacitance type load transducer
01/17/1989US4798477 Apparatus and method for static stress measurement in an object
01/17/1989US4798093 Apparatus for sensor compensation
01/05/1989DE3721113A1 Measuring circuit for electronic scales
01/04/1989CN1030136A Method and apparatus for simulation of the operational demands on a connection between components
01/03/1989US4795998 Sensor array
01/03/1989US4795232 Fibre optic cable responsive to microbending forces
01/03/1989US4794797 Method of detecting structural abnormality of substance
12/1988
12/29/1988DE3740614C1 Verfahren und Vorrichtung zur beruehrungsfreien Messung mechanischer Spannungen an schnell bewegten Objekten mit kristalliner Struktur Method and apparatus for beruehrungsfreien measurement of mechanical stress on fast moving objects with a crystalline structure
12/29/1988DE3719322A1 Bolt-like component for determining tensile or compressive forces
12/28/1988EP0296907A1 Strain gauge weighing apparatus
12/28/1988CA1247717A Tactile sensing means
12/28/1988CA1247421A Fiber optic interferometer transducer
12/27/1988US4794366 Key-touch sensor and method of manufacture
12/27/1988US4794365 Pressure sensor
12/27/1988US4794350 Circuit arrangement for converting a resistance variation into a frequency variation
12/27/1988US4793194 For converting mechanical movement into electrical signals
12/27/1988US4793193 Device for sensing loads
12/27/1988US4793189 Thick-film strain gauge for sensing stresses & strains in mechanical members or structures
12/15/1988WO1988009917A1 Optical modulation and measurement process
12/15/1988DE3817336A1 Druckmesswertaufnehmer mit digitaler kompensation Pressure transducer with digital compensation
12/13/1988US4790606 Apparatus for the measurement and/or regulation of a braking force and/or of a braking torque
12/07/1988CN87103776A Enhanced superhigh pressure sensor and its process and equipment
12/06/1988US4789035 Load cell
12/06/1988US4788868 Strain measurement apparatus and method
12/01/1988WO1988009147A1 Process and device for manufacturing interlinings and similar
12/01/1988DE3817354A1 Sensor for the detection of kinetic energy, especially piezoelectric sensor for the detection of dynamic or kinetic energy
11/1988
11/30/1988EP0292718A1 Magnetoelastic force transducer
11/30/1988CN88212860U Self-compensating strain sensor for concrete
11/30/1988CN88210950U String hydraulic sensor with piston pressure transmission
11/30/1988CN88200360U Coating binding force tester
11/29/1988US4788521 Temperature compensation system for piezoresistive pressure sensor
11/29/1988US4787256 Resistance-gauge force transducer
11/24/1988DE3716490A1 Method and device for determining the brushing force during cleaning of the teeth
11/23/1988EP0291896A2 Process and apparatus for simulating the operation constrains of a junction member
11/23/1988CN88210916U Movable diagram subtense pressure sensor
11/23/1988CN88200224U Pressure gauge with fransister electric connecting points
11/23/1988CN88102544A Monitoring method and implementing apparatus for long measured matter state
11/22/1988US4786802 Apparatus for measuring photoelasticity
11/22/1988US4785673 Strain-gauge sensor for measuring forces
11/22/1988US4785671 Stress-sensitive sensors utilizing amorphous magnetic alloys
11/22/1988CA1245070A1 Miniature electro-mechanical transducer for measuring loads and displacement
11/17/1988WO1988008960A1 Method and device for controlling the condition of lengthy objects
11/17/1988EP0291320A2 Method and apparatus for measuring strain and temperature of an object simultaneously
11/17/1988EP0290651A1 Annular force transducer
11/17/1988EP0290648A1 Atomic force sensor head for investigating the topography of a surface
11/17/1988EP0290647A1 Oscillating quartz atomic force microscope
11/17/1988EP0214213B1 Optical device for strain detection, method for measuring the strain by means of said device and their application to scales
11/17/1988DE3726146A1 Device for determining the forces acting on a vehicle
11/15/1988US4785275 Strain gauge
11/09/1988EP0289518A1 Measurement system for determining the differential rotation angle or differential torque of a machine part subjected to torsion.
11/08/1988US4782706 Holding device for mounting an electric transducer