Patents for G01B 7 - Measuring arrangements characterised by the use of electric or magnetic means (32,725)
02/1991
02/05/1991US4989451 Throttle valve position sensor
01/1991
01/31/1991DE4019290A1 Contactless sensing arrangement for media - has capacitance proximity switch with LF clock generator driving switch in supply line
01/31/1991DE3923677A1 Angle sensor for tractor and trailer longitudinal axle - has potentiometer in housing on tractor with shaft coupled to trailer
01/30/1991EP0410910A1 Membrane deformation measuring device
01/30/1991EP0410618A2 Method for visualizing the base sequence of nucleic acid polymers
01/30/1991EP0410583A1 Noncontacting position detecting apparatus for an automotive steering gear
01/30/1991EP0410131A1 Near-field Lorentz force microscopy
01/30/1991CN1048920A Metrological apparatus and calibration method therefor
01/29/1991WO1991002231A1 Shape detecting roll
01/29/1991US4988842 Stud welding system
01/29/1991US4988194 Optical storage inspection unit calibration disk
01/29/1991US4987774 Apparatus for measuring the thickness of piston rider rings
01/29/1991CA2035885A1 Shape detecting roll
01/29/1991CA1279473C Method and apparatus for measurement of caster, king- pin-inclination andcamber on motor vehicles
01/24/1991DE3923886A1 Scanning method without mechanical sensor deflection - recording current and position when sensor contacts workpiece surface for analytical operation of CNC programs
01/24/1991DE3923042A1 Capacitive displacement sensor - enables measurement in range of few cm and is mfd. using micro-mechanical technology and etching techniques
01/24/1991DE3922992A1 Recording medium position and/or type detecting appts. - has medium lift sensing element exerting pressure on piezoelement
01/23/1991EP0409267A1 Apparatus for automatic measurement of the dimensions of solids of revolution
01/23/1991EP0408807A1 Load indicating
01/23/1991EP0179157B1 Magnetic sensor system for main shaft orientation
01/23/1991EP0138852B1 Axial-torsional extensometer
01/23/1991CN1011343B Apparatus for automatic determining characteristic magnitudes of textile material to be tested
01/22/1991US4987555 Turbine blade shroud clearance monitor
01/22/1991US4987389 Lockproof low level oscillator using digital components
01/22/1991US4987303 Micro-displacement detector device, piezo-actuator provided with the micro-displacement detector device and scanning probe microscope provided with the piezo-actuator
01/22/1991US4986280 Hand position/measurement control system
01/22/1991US4986124 Screened inductance sensors, especially sensors for level measurement
01/16/1991EP0408009A2 Scanning tunneling spectroscope and a spectroscopic information detection method
01/16/1991EP0407835A2 Atomic force microscope
01/16/1991EP0407578A1 Holder for magnetic sensitive element
01/16/1991EP0407460A1 An integrated mass storage device.
01/16/1991EP0294474B1 Apparatus and method for indicating the extent of movement of a movable member of an electromagnetic device
01/16/1991CN1011263B Capacitive sensor for measuring displacement
01/15/1991CA1279119C Digitizer system with loopback conductor grid
01/10/1991WO1991000497A1 Device for measuring position of underground excavator
01/10/1991DE3921237A1 Capacitive deformation sensor for high temp. operation - has two stages of flat, parallel and rectangular, parallel plates forming differential capacitor
01/10/1991DE3920791A1 Safety circuit for proximity sensor - has duplicated processing arrangement to identify fault in sensor unit
01/09/1991EP0407211A2 Apparatus for measuring wheel rim displacements
01/09/1991EP0406924A1 Method and device for checking damage on the surface of round metal objects
01/09/1991EP0406860A1 Method and device for producing conductive thin film-coated optical fiber
01/09/1991EP0406782A1 Electromagnetic holding device
01/09/1991EP0406740A1 Absolute position measuring transducer system for an industrial robot
01/09/1991EP0406413A1 Scanning type tunnel microscope
01/08/1991US4983946 Variable resistor with switching mechanism
01/08/1991US4983916 Compact magnetic encoder
01/08/1991US4983900 Linear encoder with plural detectors for use with one or more main scales
01/08/1991US4982509 Measurement system having multiple display orientations
01/07/1991CA2020490A1 Method and device for producing conductive thin film-coated optical fiber
01/03/1991DE3920252A1 Path generator for lifting shaft movement determination - has guide on measuring system with guide pin in bearing(s), engaging can disc
01/02/1991EP0405740A2 Surface interference detector
01/02/1991EP0404980A1 Capacitance-type measuring method for absolute measurement of positions
01/02/1991EP0404975A1 Capacitive type measurement transducer with improved electrode arrangement
01/02/1991EP0404799A1 Integrated scanning tunneling microscope.
01/02/1991EP0253812B1 Measuring instruments
01/01/1991US4980994 Clamping fixture for detachably particular a disc
12/1990
12/29/1990WO1991000494A1 Sensor
12/29/1990CA2062815A1 Sensor
12/28/1990CA2019874A1 Surface interference detector
12/27/1990WO1990015986A1 Microfabricated microscope assembly
12/27/1990WO1990015968A1 Process for generating a voltage proportional to a rotation speed with a resolver and circuit for implementing the process
12/27/1990WO1990015965A1 Process and device for measuring the cross-section or the diameter of long cylindrical products made of conductive material
12/27/1990EP0404597A1 Metrological apparatus and calibration method therefor
12/27/1990EP0404479A1 Device for measuring displacement
12/27/1990EP0404275A1 Exchangeable tools
12/27/1990EP0403766A2 Scanning tunnelling microscope displacement detector
12/27/1990EP0288506B1 Position-determining apparatus
12/26/1990CN1048098A Device for monitoring and/or measuring parameters of running, therad-like or wire-like test material and method for operating device
12/26/1990CN1010975B Range finding ruler for fixed lenghth
12/25/1990US4980594 Compact servomator having an integrally wound resolver
12/25/1990US4979284 Apparatus for changing a sensing device
12/24/1990WO1991000580A1 Backlit digitizer tablet
12/24/1990CA2050308A1 Backlit digitizer tablet
12/20/1990DE4013686A1 Capacitative signal processing circuitry for measuring and regulating - has mixing stage following two relaxation oscillators alternatively blockable via two control leads
12/20/1990DE3919313A1 Monitoring system for smelt temp. and oven cladding thickness - uses heat conductive body and electrically conductive body for temp. and thickness measurements, respectively
12/19/1990CN1010887B Method of measuring position of robot
12/18/1990US4978923 Electrical measurements of the profile of semiconductor devices during their manufacturing process
12/18/1990US4978857 Optical data system having flash/receiver head for energizing/receiving information from a battery operated transmitter
12/18/1990US4977853 Non-contact wet or dry film thickness measuring device
12/18/1990US4977685 Planar thickness gauge
12/18/1990CA1277832C Method and apparatus for determining bends in a pipeline
12/13/1990WO1990015303A1 Position sensor
12/13/1990DE3931561A1 Multi-arm path pick=up for material test - has adjacent two-arm transducer elements with common attachment elements for adjacent arms
12/12/1990EP0401852A2 Surface microscope
12/12/1990EP0401658A1 Scanning tunneling microscope with arrangements for detecting electrons coming from the sample
12/12/1990EP0401600A2 Device for monitoring and/or measuring parameters of running test materials in form of thread or wire and method for operating the device
12/12/1990EP0401467A1 Position measuring device
12/12/1990EP0271560B1 Resistive position indicator
12/12/1990CN2067396U Multifunction intelligence geometric value micrometer
12/12/1990CN1010803B Non-contact measuirng device and method thereof for human height
12/12/1990CN1010802B Measuring method and apparatus for the sediment in a stake hole by electrolyzing rate
12/11/1990US4976549 Apparatus and method for direct measurement of coal ash sintering and fusion properties at elevated temperatures and pressures
12/11/1990US4976158 Tension measuring apparatus
12/11/1990CA1277707C Scanning combination thickness and moisture gauge for moving sheet material
12/06/1990DE3918185A1 Path measurer detecting set position of one body w.r.t. another - uses supply and measuring coils on one piece and short circuit coil on other
12/05/1990EP0401136A1 Detection circuit and method for temperature-compensating of the oscillation of a resonating circuit
12/05/1990EP0400626A1 An improved electrode structure for capacitance-type measurement transducers
12/05/1990EP0400541A1 Atomic probe type microscope apparatus
12/05/1990CN2066971U Two-way digital displacement sensor for hull effect
12/04/1990US4974333 Width measuring device
11/1990
11/29/1990WO1990014599A1 Pivoted arm capacitive extensometer