Patents for G01B 7 - Measuring arrangements characterised by the use of electric or magnetic means (32,725)
04/1994
04/12/1994US5301545 Method and system for measuring irregularities in the surface of a commutator
04/07/1994DE4325406A1 Proximity switch for sensing metallic object, with constant total resistance in processing circuit - includes sensing impedance controlled in dependence on measured current and providing output signal from its voltage drop
04/07/1994DE4233331A1 Position measurement arrangement using magnetoresistive sensor - has periodically magnetised scale and movable sensor contg. magnetoresistive film strips forming Wheatstone bridges
04/07/1994DE4232994A1 Shaft torsion and rotation angle measuring device - contains two coil arrangements with six annular coils arranged in groups for measurement on interconnected shafts
04/06/1994EP0590503A2 Capacitive sensor for the determiniation of variations in mass and/or diameter of a stretch of textile sample
04/06/1994CN2160886Y Gas swinging type tilt angle sensor
04/06/1994CN2160885Y Universal tilt angle signal generator
04/06/1994CN2160884Y Magnetoelectric parallel type non-magnetic sensor for coating gaugemetre
04/06/1994CN1084971A Double-working position identify sensor
04/05/1994US5300918 Shaft rotary position sensor
04/05/1994US5300883 Position sensor with variably coupled magnetic field conducting means
04/05/1994US5300882 Inductive position sensor for determining the angular position of a rotating shaft
04/05/1994US5300842 Flux/current air gap estimation method for active magnetic bearings
04/05/1994US5300841 Inductive air gap estimation method for active magnetic bearings
04/05/1994US5299451 First cylinder detector for a gasoline internal combustion engine
04/05/1994US5299360 Probe for checking linear dimensions
04/05/1994US5299359 Method and system for measurement of internal tube dimensions within a wellbore
03/1994
03/31/1994WO1994006999A1 Arrangement for measuring the position of a feed beam in a rock drilling apparatus and/or measuring the position of a rock drill
03/31/1994DE4330115A1 Caliper measuring device for component expansion - has one or both calliper arms with 2 parallel forks clamped against measured component
03/31/1994DE4327250A1 Workpiece optical coordinates measuring system - using video camera coupled to monitor for visual examination of mechanically scanned workpiece surface
03/31/1994DE4232171A1 Determining relative position of driverless vehicle - inputting switching times of row of binary reed switches into computer, and determining position of passive magnetic markers relative to vehicle position from sum of switch positions
03/30/1994EP0589815A2 Two dimensional profiling with a contact force atomic force microscope
03/30/1994EP0589500A1 Methods for gauging and scanning of screwthreads and similar grooves
03/30/1994EP0589315A1 Device for measuring the coating thickness of a steel tubular article moving continuously in its axial direction
03/30/1994EP0588888A1 Microprobe for surface-scanning microscopes.
03/29/1994US5299184 Information processing apparatus with held distance control on track edge detection
03/29/1994US5299143 Displacement detecting apparatus
03/29/1994US5298975 Combined scanning force microscope and optical metrology tool
03/29/1994US5298689 Coordinate input device using Matteucci effect
03/29/1994US5298123 Measuring and indicating device
03/29/1994US5298122 Measuring device and method for measuring the crosswise profile of a paper web
03/29/1994US5297439 Sensor for detecting mechanical influence on an object of measurement
03/29/1994CA2053344C Method and system increasing the operational availability of a system of computer programs operating in a distributed system of computers
03/29/1994CA1328038C Roller clamp type wheel examining apparatus
03/24/1994DE4231616A1 Capacitive sensor, esp. for distance measurement - has capacitive bridge circuit with electrode and supply surfaces on opposite sides of circuit board
03/24/1994DE4231346A1 Individual wheel control arrangement for rail vehicles - has one or more inductive sensors per wheel and associated computing circuitry
03/24/1994DE4231282A1 Winkelmesser Protractor
03/24/1994DE4231107A1 Sensor for measuring thickness and temp. of brake linings, esp. in vehicle - has high impedance electrical resistance in or on brake lining and coupled to temp. dependent resistance
03/24/1994DE4222841C1 Fault-sensing capacitive-conductive micrometric position sensor for workpiece clamping - contains insulated front positioning electrode, and rear counter and monitoring electrodes which are moved towards each other by compressed bellows to generate alarm signal
03/23/1994EP0588512A1 Method of and apparatus for scanning the surface of a workpiece
03/23/1994EP0588383A2 Mechanical/electrical displacement transducer
03/23/1994EP0587844A1 Sensor-drive and signal-processing method----------------------
03/22/1994US5297130 Driving apparatus and a recording and/or reproducing apparatus using the same
03/22/1994US5297062 For use in determining sheet caliper
03/22/1994US5297055 Multi-functional measurement system
03/22/1994US5296704 For investigating a surface of a sample
03/22/1994US5295307 Sensing circuit for position-sensing probe
03/17/1994WO1994006160A1 Electromechanical positioning device
03/17/1994WO1994006002A1 Capacitive sensor and method of measuring changes in capacitance
03/17/1994WO1994005975A1 Unit using hall elements for determining the position of the throttle valve in an internal-combustion engine
03/17/1994WO1994005974A1 Position-determining device using hall elements
03/17/1994WO1994005965A1 A microelectronic position sensor
03/17/1994WO1994005964A1 A magnetic field position transducer for two or more dimensions
03/16/1994EP0587490A1 Method and device for determining the twist of a bar
03/16/1994EP0587459A1 An ultra-low force atomic force microscope
03/16/1994EP0587165A2 Information processing apparatus having multiprobe control circuit
03/16/1994EP0586742A1 Measuring device for inspecting changes of distance
03/15/1994US5295173 Frequency divider for dividing two input pulses
03/15/1994US5294854 Bearing for use in high resolution precision control device
03/15/1994US5293911 Method and system for fluid transfer and non-contact sensor for use therein
03/15/1994US5293695 Tool for measuring relative distance between two adjacent surfaces and method therefor
03/10/1994DE4330302A1 Position display esp. for displaceable ski-binding - has protective housing enclosing all electrical and electronic parts pref. supplied via solar cell
03/10/1994DE4240739A1 Vibration isolating method or inductive static displacement measurement - electrically damping current in measuring coil using frequency which gives lossy damping of coil current, and using damping value to measure proximity of core to coil
03/10/1994DE4234063C1 Hydraulic cylinder electronic end-position damping system - senses piston position at ends of stroke using free-field, inductive, capacitive or cavity resonator detection, and varies hydraulic supply with controllable-cross=section choke
03/10/1994DE4227052C1 Non-contact capacitive sensor for scanning of labels on carrier - processes frequency-modulated signal by demodulator with post-controlled carrier reference frequency, amplifier, low=pass filter, and voltage-controlled filter which outputs both to trigger, and to peak detector in feedback circuit
03/10/1994DE4220336A1 Absolute position or speed evaluation procedure for machine tool - involves combining position signals provided by source with corresp time signals
03/09/1994EP0586349A1 A device for sensing the thickness of strip material, in particular in devices for changing rolls of metallized strip material automatically
03/09/1994EP0586023A2 Capacitive system for sensing position
03/09/1994CN1083586A 感应同步器位移数显卡 Inductosyn displacement few cards
03/09/1994CN1083585A Induction synchronizer digital display displacement measuring method
03/08/1994US5293132 Coating thickness measurement gauge
03/08/1994US5293118 Device for measuring thickness of sheet article with magnet and probe carriers provided with rollers
03/08/1994US5291794 Method and apparatus for monitoring mechanical power transmission systems
03/08/1994US5291789 Load indicating
03/08/1994US5291782 Eddy current position sensor
03/08/1994US5291775 Scanning force microscope with integrated optics and cantilever mount
03/03/1994WO1994004938A1 Position location system
03/03/1994WO1994004932A1 Dual sensitivity stud sensor
03/03/1994DE4328756A1 IC engine crankshaft angle detector - has Hall microcircuit and associated flux guide cooperating with permanent magnet and second flux guide secured in reception socket
03/03/1994DE4228719A1 Capacitive steering angle sensor for motor vehicle - forms first capacitor group from electronics transmitter electrodes and scale receiver electrodes, and second capacitor group from scale transmitter electrodes and electronics receiver electrodes
03/03/1994DE4228307A1 Proportional magnetic valve for hydraulic appts. e.g. regulating valve, pump or positioning motor - has strain gauge on leaf spring, one end of which is connected to housing, and other end of which is deflected according to position of control piston
03/03/1994DE4228086A1 Electric sensor component for automisation or ind. robot applications - uses housing filled with electrolyte providing resistance variation dependent on position of freely movable body
03/02/1994EP0584440A1 Atomic force microscope
03/02/1994EP0584233A1 Methods of fabricating integrated, aligned tunneling tip pairs
03/02/1994EP0439558B1 Measurement circuit and its use, in particular with inductive position sensors
03/02/1994CN1083217A Method for positioning plate material by use of constant magnetic field
03/02/1994CN1083136A Remaining bobbin-thread amount measuring apparatus for sewing machine
03/01/1994US5291335 Optical equipment having a lens position detector
03/01/1994US5291131 Apparatus for measuring elongation of a circulating chain
03/01/1994US5289722 Preassembled, easily mountable strain gage
02/1994
02/24/1994DE4227735A1 Electrically-conductive-film thickness contactless measuring system - has inductive sensors located on opposite sides of substrate for generating sequential mutually attracting and repelling AC magnetic fields, to create eddy currents effects in film for comparison
02/24/1994DE4227734A1 Thin film thickness contactless measuring system e.g. for electrically-conductive film - has inductive sensors located on either side of film for generating AC magnetic field towards and away from film, by rotation of sensor into upright and inverted positions
02/23/1994EP0583816A1 A method for determining the inclination angle of a rope, and an anti-swing device for controlling this angle in a lifting apparatus
02/23/1994EP0484470B1 Method and apparatus for dynamically checking dimensions of mechanical parts
02/23/1994CN2157486Y General precision length measuring gauge outfit
02/22/1994US5289122 Magnetic sensor for detecting coarse and fine magnetic patterns
02/22/1994US5287630 Distance or position detecting device
02/22/1994US5287626 Apparatus and method for measuring rotation angle
02/17/1994WO1994003778A1 Non-contact distance-measuring system and method of non-contact distance measuring
02/17/1994WO1994003777A1 Frame shape measuring instrument