Patents
Patents for G01D 5 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable (43,723)
03/1990
03/27/1990US4912408 Distance measuring system using superconducting quantum interference device
03/27/1990US4912322 Optical type displacement detecting device
03/27/1990US4912320 Optical type encoder including diffraction grating for producing interference fringes that are processed to measure displacement
03/27/1990US4911015 Non-electrical monitoring of a physical condition
03/22/1990WO1990002956A1 Setting up of quadrature signals
03/22/1990WO1990002924A1 Motion sensor
03/22/1990WO1990002923A1 Method and apparatus for measurement of capacitance and for capacitive measurement of displacement
03/22/1990WO1990002919A1 Tape scale applicator
03/22/1990DE3831417A1 Optoelectronic absolute position encoder (displacement sensor)
03/21/1990EP0359705A2 Bi-modal fibre-optical sensor with spatial demultiplexation
03/21/1990EP0359414A2 Scale for use with opto-electronic scale reading apparatus
03/21/1990EP0359360A2 Optical fibre sensors and methods
03/21/1990EP0359247A2 Rotation sensor
03/21/1990EP0358989A2 Position or speed sensing apparatus
03/21/1990EP0358755A1 Shaft angle position sensing device
03/21/1990EP0358689A1 Optical position encoder
03/21/1990EP0357679A4 Fiber optic which is an inherent chemical sensor.
03/20/1990US4910488 Rotary variable differential transformer with eccentric rotor core
03/20/1990US4910408 Fiberglass collar for data transfer from rotatable shaft
03/20/1990US4909594 Optical coupler pressure or load sensor
03/20/1990US4909112 Multiple head gang saw with simplified, accurate displacement transducer
03/20/1990CA1266786A1 Coherent distributed sensor and method using short coherence length sources
03/15/1990DE3830520A1 Device for the generation of control voltages
03/15/1990DE3829905A1 Method for detecting the position of an axle (shaft)
03/15/1990DE3829647A1 Bewegungssensor Motion sensor
03/15/1990DE3829636A1 Position sensing system
03/14/1990EP0358366A2 Electrostatic capacity-type displacement sensor
03/14/1990EP0358258A2 Optical sensing arrangement
03/14/1990EP0358241A2 Method of determining inductivity of an inductive sensor
03/14/1990EP0357870A2 Unitary rotational speed sensor
03/14/1990EP0357695A1 Optical apparatus for use with interferometric measuring devices.
03/14/1990EP0357679A1 Fiber optic which is an inherent chemical sensor
03/14/1990EP0266389B1 Improvements relating to optical fibre sensing systems
03/14/1990EP0118673B1 Measurement device
03/13/1990US4908598 Rotary potentiometer
03/13/1990US4908574 Capacitor array sensors for determining conformity to surface shape
03/13/1990US4908572 Rotational speed sensor with unfixed and/or fixed edge speed calculation modes
03/13/1990US4908510 Optical fiber coupled resolver having a reference signal
03/13/1990US4907901 Method and apparatus for measuring displacement of a moveable member of an electromagnetic device by using perturbations in the device's energizing current
03/13/1990US4907848 Holographic rotary and linear encoder and method
03/13/1990CA1266712A1 Eddy current touch sensor
03/12/1990EP0299054A4 Centrifugation pheresis system.
03/08/1990WO1990002322A1 Parameter measurement using refractive index change
03/08/1990WO1990002316A1 Rotary code disk mounting structure for optical encoders
03/08/1990WO1990002315A1 Metrological scale
03/08/1990WO1990002314A1 Orientating optical fibres
03/08/1990WO1990002313A1 Optoelectronic measurement arrangement
03/08/1990WO1990002312A1 Magnetic absolute position encoder
03/08/1990DE3829875A1 Circuit arrangement for monitoring an inductive sensor
03/07/1990EP0357426A2 Light quantity controlling apparatus
03/07/1990EP0357277A2 Optical scale-reading apparatus
03/07/1990EP0357253A2 Fibre optic sensor
03/07/1990EP0357200A2 Position sensor
03/07/1990EP0357199A2 Improved position sensor
03/07/1990EP0356505A1 Magnetic position sensor
03/07/1990EP0356482A1 A sensor and transducer apparatus.
03/07/1990EP0148853B1 Quadature fiber-optic interferometer matrix
03/06/1990US4907178 Method for detecting a reference angular position of a rotary body
03/06/1990US4906992 Single track absolute encoder
03/06/1990US4906924 Linear variable displacement transducers including phase shifting series connected coils
03/06/1990US4906838 Optical encoder with grounded coding plate
03/06/1990US4906837 Multi-channel waveguide optical sensor
03/06/1990US4906834 Infrared detector circuit having a resistor series connected to the detector to limit the current across the pn junction of the FET
03/06/1990US4905720 Current-to-pressure transducer with enhanced performance features
03/06/1990US4905520 Pressure sensor
03/01/1990DE3928027A1 Absolute coder using coding disc - has two detectors as unit, set at preset spacing along sign pattern track on-disc
03/01/1990DE3921312A1 High resolution absolute coder with movable coding carrier - uses scanning beam deflectable in coding carrier movement direction
03/01/1990DE3829516A1 Measuring device for determining an angle of rotation
02/1990
02/28/1990EP0356273A1 Main and secondary optical sensor device
02/28/1990EP0356085A2 Automatic gain control fiber optic-to-electrical transceiver
02/28/1990EP0355902A2 Plotter pen ink level detector
02/27/1990US4905205 Method for transmitting to a central recording device seismic data collected by acquisition apparatus distributed over the ground and a device for implementing same
02/27/1990US4904937 Apparatus for magnetically detecting positions with minimum length magnetic information units recorded on a plurality of magnetic tracks
02/27/1990US4904921 Monolithic interface circuit for linear variable differential transformers
02/27/1990US4904864 Multi-wavelength time domain reflectometer
02/27/1990US4904861 Optical encoder using sufficient inactive photodetectors to make leakage current equal throughout
02/27/1990CA1266312A1 Displacement detection
02/22/1990WO1990001760A1 Humidity resistant meter reading device
02/22/1990WO1990001680A1 Magnetic absolute position encoder
02/21/1990EP0354996A2 Fibre-optical device to measure absolute positions
02/21/1990EP0354936A1 Device for determining a path or an angular rotation
02/21/1990EP0298091A4 Optical sensors and optical fibre networks for such sensors.
02/21/1990CN1006926B Compressor with rotation detecting device
02/20/1990US4903002 Displacement or position transducer
02/20/1990US4902903 Apparatus employing reflective optical means
02/20/1990US4902888 Optical fiber sensor
02/20/1990US4902885 Photoelectric conversion type rotational position detector
02/20/1990US4902882 In an electronic locking apparatus
02/20/1990CA1265945A1 Fibre optic cable responsive to microbending forces
02/15/1990DE3827113A1 Magnetic field sensor device
02/14/1990EP0354825A1 Apparatus for coherence reading of an optical sensor
02/14/1990EP0354732A2 Optical transducer systems
02/14/1990EP0354566A2 Angle transducer
02/14/1990EP0354565A2 A torque measuring and transmitting system for a web spooling mechanism
02/14/1990EP0354386A1 Transducer for the measurement of length or distance changes, especially for the contactfree measurement of torque on rotating shafts
02/14/1990EP0354269A1 Circuitry for monotoring the contact resistance of a potentiometer
02/14/1990CN2052891U Magnetic resistance sensor
02/14/1990CN1039652A Apparatus for detecting edge position
02/13/1990US4901255 Method and apparatus for evaluating quadrature encoders
02/13/1990US4901073 Encoder for measuring the absolute position of moving elements