| Patents for G01R 17 - Measuring arrangements involving comparison with a reference value, e.g. bridge (1,558) |
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| 12/05/1990 | EP0400012A1 Circuit arrangement with a flow probe actuated by a bridge circuit |
| 11/22/1990 | EP0398509A2 Monitoring circuit |
| 11/22/1990 | DE3915880A1 Multi-wired cables monitor esp. for communications cables - measures charging time of capacitor in bridge measuring loop and/or insulation resistance of connected wires |
| 11/13/1990 | CA1276234C Electrical measuring instrument for high voltage power measurements |
| 10/10/1990 | EP0391267A1 Variable resistance |
| 08/28/1990 | US4952821 Voltage detection circuit and comparison voltage generator therefor |
| 08/22/1990 | CN1009311B Method for the elimination of the dc voltage component of a capacitive ac voltage divider |
| 08/16/1990 | EP0382217A2 Power source circuit and bridge type measuring device with output compensating circuit utilizing the same |
| 08/01/1990 | EP0185685B1 Electrical continuity testing |
| 07/18/1990 | EP0378084A2 Measuring circuit for evaluating measuring signals |
| 07/07/1990 | CA2004868A1 Measuring circuit for detecting measurement signals |
| 07/05/1990 | DE3843280A1 Method and device for electrical current measurement |
| 06/26/1990 | US4937521 Current detecting device using ferromagnetic magnetoresistance element |
| 05/30/1990 | EP0370647A1 Microcomputer controlled resistance fault locator circuit |
| 05/23/1990 | EP0369290A2 Supporting substrate for a linear potentiometer, and process for its production |
| 05/23/1990 | CN1008133B Capacitance measuring method and apparatus |
| 05/09/1990 | EP0366680A1 A nonvolatile nonlinear reprogrammable electronic potentiometer |
| 05/08/1990 | CA1268815A1 Superconducting current detecting circuit employing dc flux parametron circuit |
| 04/17/1990 | US4917099 Method and apparatus for differential lead impedance comparison |
| 03/07/1990 | EP0356438A1 Process and arrangement for evaluating a measurable analog electronic quantity. |
| 02/28/1990 | CN1007018B Measuring bridge |
| 02/15/1990 | DE3827257A1 Phase sensitive rectifier |
| 01/31/1990 | EP0353039A1 Compensated current sensing circuit |
| 01/30/1990 | CA1265214A1 Electrical circuit for use with a four-pole device |
| 01/24/1990 | CN2051745U Pocket digital potentiometer |
| 01/03/1990 | CN2050615U Portable digital potential difference meter |
| 11/15/1989 | CN2047788U Pocket digital potentiometer |
| 11/08/1989 | CN1037038A High resolution method of extending the range of three and a half digits meter |
| 10/25/1989 | CN2046629U Pocket digital potentiometer |
| 10/18/1989 | CN1005503B Ciruit struture for adjusting a unbalance voltage measure value of resistance bridge circuit |
| 10/10/1989 | US4873490 Circuit arrangement for generating an output signal that is nonlinearly dependent on the temperature |
| 09/19/1989 | US4868507 Microcomputer controlled resistance fault locator circuit |
| 09/19/1989 | EP0318549A4 Test meters. |
| 09/14/1989 | DE3806764A1 Constant-temperature anemometer |
| 09/12/1989 | US4866400 Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system |
| 09/12/1989 | US4866373 Superconducting current detecting circuit employing DC flux parametron circuit |
| 09/05/1989 | US4864513 Potentiometer setting detection by measuring the ratio of RC time constants |
| 08/29/1989 | US4862382 Arrangement for processing the output signals of a resistance bridge |
| 08/22/1989 | US4860232 Digital technique for precise measurement of variable capacitance |
| 08/15/1989 | US4857761 Circuit for monitoring a plurality of analog quantities |
| 08/10/1989 | WO1989007242A1 Circuit arrangement with a flow probe actuated by a bridge circuit |
| 07/25/1989 | US4851763 Current-measuring device, especially for determining the motor current of a direct-current motor |
| 07/25/1989 | CA1257906A1 Electrical continuity testing |
| 07/19/1989 | EP0324067A2 Measurement pick-off |
| 07/19/1989 | EP0324063A2 Automatic pole-zero adjustment circuit for an ionizing radiation spectroscopy system |
| 06/20/1989 | US4841286 Apparatus and method for detection of an open thermocouple in a process control network |
| 06/07/1989 | EP0318549A1 Test meters. |
| 05/30/1989 | CA1254946A1 Device for detecting voltage fluctuation |
| 05/23/1989 | US4833401 Electrical measuring instrument for high voltage power measurements |
| 05/18/1989 | DE3828856A1 Abstimmverfahren und -einrichtung fuer kapazitaetsmessbruecken Capacitance bridges tuning and setup for |
| 05/18/1989 | DE3828343A1 Anordnung zur messung kleinster kapazitaetsaenderungen Arrangement for the measurement of very small kapazitaetsaenderungen |
| 05/02/1989 | US4827161 Comparator having an offset voltage cancellation circuit |
| 04/11/1989 | US4820968 Compensated current sensing circuit |
| 02/23/1989 | DE3727125A1 Method for compensating voltage variations in a magneto-resistive bridge element |
| 02/22/1989 | CN2033125U Precise direct-current bridge testing device with microcomputer |
| 02/21/1989 | US4807151 Electrical technique for correcting bridge type mass air flow rate sensor errors resulting from ambient temperature variations |
| 01/25/1989 | EP0300635A1 Current detecting device using ferromagnetic magnetoresistance element |
| 01/03/1989 | US4795965 Capacitance to voltage conversion circuit including a capacitive bridge and a capacitive offset |
| 12/28/1988 | CN88211574U Multifunctional dc potentiometer |
| 12/27/1988 | US4794350 Circuit arrangement for converting a resistance variation into a frequency variation |
| 12/01/1988 | WO1988009581A1 A nonvolatile nonlinear reprogrammable electronic potentiometer |
| 12/01/1988 | WO1988009489A1 Test meters |
| 11/02/1988 | EP0288977A1 Current comparison circuit |
| 11/01/1988 | US4782288 Method for evaluating processing parameters in the manufacture of semiconductor devices |
| 11/01/1988 | US4782285 Variable resolution control system |
| 10/26/1988 | EP0287886A1 Circuit for monitoring several analogous magnitudes |
| 10/13/1988 | DE3710904A1 Verfahren und anordnung zur auswertung einer analogen elektrischen messgroesse Method and arrangement for evaluation of an analog electrical measurement variable |
| 10/06/1988 | WO1988007658A1 Process and arrangement for evaluating a measurable analog electronic quantity |
| 09/20/1988 | US4772844 High precision capacitance bridge |
| 09/13/1988 | US4771233 Printed curcuit board lead ammeter |
| 09/06/1988 | US4769123 Electrochemical device |
| 08/31/1988 | EP0280303A2 Method and circuit for the automatic measuring of direct currents |
| 08/09/1988 | US4763068 Method, circuit and apparatus for the elimination of the d.c. voltage components of a capacitive a.c. voltage divider |
| 07/27/1988 | EP0275617A1 Probe of use for detecting abnormal tissues |
| 06/14/1988 | CA1238085A1 Remote sensor with compensation for lead resistance |
| 06/01/1988 | DE3639559A1 Device for measuring physical quantities |
| 05/25/1988 | EP0268161A1 Device for detecting and transmitting a measuring signal |
| 05/11/1988 | EP0266365A1 Circuitry for generating an output signal non-linearly dependent on temperature. |
| 04/26/1988 | CA1235747A1 Sensing system for measuring a parameter |
| 04/12/1988 | US4737652 Method for the periodic determination of a quantity to be measured, using a reference signal |
| 04/06/1988 | CN87212042U Setting unit of instrument with single scale |
| 03/30/1988 | EP0261526A1 Electronic electricity meter |
| 03/22/1988 | US4733322 AC-DC transfer standard overload protection circuit |
| 03/08/1988 | US4729385 Probe and method of use for detecting abnormal tissues |
| 02/23/1988 | CA1233203A1 Wattmeter |
| 01/20/1988 | CN87208517U 导体电阻测量仪 Conductor resistance measuring instrument |
| 01/13/1988 | EP0252609A2 Comparator having an offset voltage cancellation circuit |
| 12/29/1987 | US4716361 Capacitance measuring method and apparatus |
| 12/15/1987 | US4713158 System for applied current cathodic protection of a structure |
| 12/01/1987 | US4710702 Heterodyne type signal-measuring method and a measuring apparatus including automatic detuning correction means |
| 12/01/1987 | US4710652 Interference signal component compensation circuit |
| 11/24/1987 | US4709225 Self-calibration method for capacitors in a monolithic integrated circuit |
| 10/29/1987 | DE3701411A1 Circuit arrangement for amplifying and converting a signal voltage into a squarewave voltage |
| 10/22/1987 | WO1987006337A1 Circuitry for generating an output signal non-linearly dependent on temperature |
| 10/20/1987 | US4701701 Apparatus for measuring characteristics of circuit elements |
| 10/14/1987 | EP0240637A1 Electrical technique for correcting bridge type mass air flow rate sensor errors resulting from ambient temperature variations |
| 10/06/1987 | CA1227663A1 Variable current pressure transducer system |
| 09/16/1987 | EP0236538A1 Circuit arrangement involving a four-pole connected to the input with one pole and an amplifier for the compensation of a reference potential |
| 09/01/1987 | US4690152 Apparatus for epithelial tissue impedance measurements |
| 08/19/1987 | CN87100566A Electrical circuit for using with four-pole device |