Patents
Patents for G01R 17 - Measuring arrangements involving comparison with a reference value, e.g. bridge (1,558)
03/2002
03/21/2002US20020033700 Method and apparatus for fault detection in a resistive bridge sensor
03/13/2002EP0866958B1 Wheatstone bridge with temperature gradient compensation
02/2002
02/21/2002US20020021122 High resolution current sensing apparatus
02/21/2002US20020021119 High resolution current sensing apparatus
02/19/2002US6348788 High resolution current sensing apparatus
02/18/2002CA2720501A1 Coriolis mass flow controller
02/18/2002CA2720414A1 Coriolis mass flow controller
01/2002
01/09/2002CN2470835Y Capacitor and impedance apparatus relevant to decimal value and multiple values
12/2001
12/13/2001WO2001040813A3 Measuring bridge circuit in three wire conductor technology provided with supply voltage post regulation
11/2001
11/01/2001US20010035758 Bridge circuit for detector
10/2001
10/31/2001CN1320216A Quad-layer GMR sandwich
10/30/2001US6308564 Method and apparatus for determining the quantity and quality of a fluid
10/23/2001CA2196712C Resistance bridge and its use in conversion systems
10/16/2001US6304074 Method for the offset calibration of a magnetoresistive angle sensor including at least one wheatstone bridge
09/2001
09/18/2001US6289738 Testable membrane sensor with two full bridges
06/2001
06/28/2001DE19959753A1 Electronic bridge amplifier for measurement impedance bridges, has bridge branch with central tap resting at zero potential using current-voltage converter
06/07/2001WO2001040813A2 Measuring bridge circuit in three wire conductor technology provided with supply voltage post regulation
06/06/2001CN2433631Y Bridge electric balanced circuit
05/2001
05/31/2001DE19957088A1 Three phase measurement bridge circuit with supply current adjustment
03/2001
03/20/2001US6204673 Method and apparatus using feedback to correct the production of magnitude and phase relationships between two sinusoidal signals for use in a ratio-transformer capacitance bridge
03/14/2001EP1082619A1 Magnetic field sensing device
03/07/2001EP1081468A1 Transducer for level sensors
03/06/2001US6198296 Bridge sensor linearization circuit and method
03/01/2001DE19941023A1 Messwandler für Füllstandsensoren Transducers for level sensors
03/01/2001DE19934644A1 Schaltungsanordnung zur Messung eines veränderlichen Widerstandes A circuit arrangement for measuring a variable resistor
02/2001
02/22/2001DE19939564A1 Measuring impedance involves deriving it from complex voltage ratio for various amplitude and phase difference values measured for different measurement bridge configurations
02/21/2001CN2420650Y Voltage meter for cold cathode vacuum tube
01/2001
01/31/2001EP1072896A2 Circuit for measuring a variable resistance
01/10/2001EP1066552A1 Circuit for controlling and measuring the load current through a load
11/2000
11/21/2000US6148675 Method of measuring strain
10/2000
10/25/2000EP1046891A2 Device for trimming a measuring bridge and rotating shaft for measuring a torsional moment
10/19/2000DE19917443A1 Abgleichwiderstand und Drehmomentmeßwelle Balancing resistance and torque measuring
09/2000
09/07/2000DE19812920C2 Schaltungsanordnung zur Steuerung und Erfassung des Laststromes durch eine Last Circuit arrangement for controlling and detecting the load current by a load
08/2000
08/08/2000US6098464 Wheatstone bridge with temperature gradient compensation
05/2000
05/31/2000CN2380924Y Portable dc. voltmeter
05/31/2000CN2380923Y Practical bridge apparatus
05/18/2000DE19852502A1 Verfahren zur Offset-Kalibrierung eines magnetoresistiven Winkelsensors A method for offset calibration of a magnetoresistive angle sensor
05/17/2000EP1001248A2 Method for offset calibrating a magneto-resistive angle sensor
04/2000
04/06/2000WO2000019226A1 Quad-layer gmr sandwich
04/05/2000EP0990967A2 Circuit for controlling and measuring the load current through a load
03/2000
03/30/2000DE19844665C1 Circuit for controlling and detecting load current
03/29/2000CN2371033Y Tester for printing head of wire printer
03/14/2000CA2145698C Electronic circuit for a transducer
01/2000
01/12/2000CN2358457Y DC comparator
12/1999
12/02/1999WO1999061931A1 Magnetic field sensing device
12/02/1999DE19812920A1 Schaltungsanordnung zur Steuerung und Erfassung des Laststromes durch eine Last Circuit arrangement for controlling and detecting the load current by a load
11/1999
11/02/1999US5974895 Capacitively measuring sensor and readout circuit
09/1999
09/30/1999WO1999049377A1 Circuit for controlling and measuring the load current through a load
09/02/1999DE19806753A1 Error indicator for sensor comprising Wheatstonebridge
06/1999
06/30/1999CN1043936C Miniature potentionmeter and process of automatic sequential production thereof
06/16/1999EP0922928A1 Measuring strain or stress with an initially unbalanced bridge
06/15/1999US5912693 Method of driving heating element to match its resistance, thermal printer, and resistance measuring device
06/01/1999US5909132 Resistance bridge and its use in conversion systems
04/1999
04/08/1999DE19741892A1 Monitoring level and quality of e.g. hygroscopic brake fluid or motor oil with special reference to its boiling point
04/06/1999USH1793 Thermal transient test system
03/1999
03/04/1999DE19738050A1 Circuit to generate and evaluate measurement signal from position sensor in form of potentiometer
03/02/1999US5877637 Resistance bridge and its use in conversion systems
02/1999
02/02/1999US5867018 High accuracy four-terminal standard resistor for use in electrical metrology
01/1999
01/26/1999CA2002263C Microcomputer controlled resistance fault locator circuit
01/05/1999US5856751 Method and apparatus for monitoring an alternating signal
12/1998
12/30/1998CN1203662A Wheatstone bridge with temp. gradient compensation between main resistor of bridge and its application in pressure-sensor with foil gauge
11/1998
11/03/1998US5831427 Voltage measuring device for a source with unknown resistance
10/1998
10/14/1998EP0871037A1 Circuit arrangement for monitoring an electronic circuit
09/1998
09/30/1998EP0866958A1 Wheatstone bridge with temperature gradient compensation
09/29/1998US5814995 Voltage detector for battery operated device
09/22/1998US5812411 Tapped variable potentiometer resistor with current sense and safety circuit
09/08/1998US5804978 Circuit for feeding a Wheatstone Bridge with a rectangular waveform voltage
06/1998
06/03/1998EP0610331B1 Circuit assembly and method for electrical eddy-current testing
04/1998
04/28/1998US5744954 For measurement of existing physical properties in a ferromagnetic object
03/1998
03/10/1998US5726564 Temperature-compensating method for a resistance bridge circuit, resistance bridge circuit with temperature-compensating circuit, and acceleration sensor using the same
02/1998
02/03/1998US5714879 Method of and arrangement for regulation of sensitivity in evaluation circuit
01/1998
01/28/1998EP0821243A2 Test method of an impedance linked to a bridge output stage and appartatus related
01/07/1998EP0816818A2 Capacitance measuring sensor and selection circuit
01/02/1998DE19625703A1 Low loss measuring system for heating current flow through probe heater unit
12/1997
12/16/1997US5698987 Method of driving heating element to match its resistance, thermal printer, and resistance measuring device
10/1997
10/08/1997EP0800090A1 Connecting condition examination apparatus, portable electronic equipment and connecting condition examination method
08/1997
08/21/1997DE19629781C1 Bridge terminating stage impedance testing method
07/1997
07/16/1997EP0783677A1 Testable membrane sensor with two full bridges
07/01/1997US5644484 Bidirectional load current sense circuit for a H-bridge
06/1997
06/12/1997WO1997021083A1 Wheatstone bridge with temperature gradient compensation
05/1997
05/13/1997US5629629 Circuit arrangement for determining differences in capacitance
05/07/1997DE19540878A1 Impedance bridge measuring establishing impedance values in HF range
04/1997
04/24/1997WO1997014972A1 Connecting condition examination apparatus, portable electronic equipment and connecting condition examination method
03/1997
03/11/1997US5610506 Voltage reference circuit
03/04/1997US5608333 Method of driving heating element to match its resistance, thermal printer, and resistance measuring device
02/1997
02/13/1997WO1997005464A1 Testable membrane sensor with two full bridges
01/1997
01/30/1997DE19527687A1 Sensor Sensor
01/08/1997EP0599960B1 A method and circuit for balancing an error signal
01/07/1997US5592141 Miniature potentiometer
12/1996
12/04/1996EP0745861A2 Method for measuring capacitances
12/04/1996EP0745860A2 Process for reducing drift in protection systems
11/1996
11/06/1996EP0741299A2 Circuit for determining differences in capacity
10/1996
10/31/1996DE19509815C1 Wheatstone bridge supply circuit
10/10/1996DE19512613A1 Automatic control of sensitivity at start of measurement esp. for inductive rpm sensor e.g. in motor vehicle
09/1996
09/05/1996DE19506276A1 Switching circuit for interpolation of sensor signals
08/1996
08/14/1996DE19513022C1 Differential capacitance measuring circuit for pressure sensor
06/1996
06/04/1996US5523693 Balanced signal source
05/1996
05/28/1996US5521501 Magnetic field sensor constructed from a remagnetization line and one magnetoresistive resistor or a plurality of magnetoresistive resistors
05/22/1996EP0713166A1 A voltage reference circuit
05/09/1996DE19521767A1 Temperature compensation circuit for resistive bridge circuit of acceleration sensor
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