| Patents for G01R 17 - Measuring arrangements involving comparison with a reference value, e.g. bridge (1,558) |
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| 03/03/1981 | US4254469 Method and apparatus for offset error correction |
| 02/24/1981 | US4253155 Self-compensating measurement system |
| 02/18/1981 | EP0023935A1 Device for continuously controlling the functioning of a display or recording instrument, method of operating same and application of the method |
| 01/07/1981 | EP0021486A1 Device for displaying an analog signal on a display screen |
| 01/06/1981 | US4243898 Semiconductor temperature sensor |
| 12/23/1980 | US4241428 Line compensated seismic amplifier |
| 12/09/1980 | US4238784 Electronic measuring system with pulsed power supply and stability sensing |
| 12/09/1980 | US4237721 Apparatus and method for detecting substances and for regulating current |
| 10/29/1980 | EP0017901A2 Test circuit for electrically measuring mechanical quantities |
| 10/28/1980 | US4230988 Resistance neutralizing system for electrochemical devices |
| 10/21/1980 | US4229692 Linear low drift bridge amplifier |
| 10/02/1980 | WO1980002070A1 Strip chart recorder with a differential capacitor serving as position sensor in a position servo for the recording pen |
| 09/04/1980 | WO1980001851A1 Method and apparatus for compensating for drift of the null point of a measuring device |
| 08/20/1980 | EP0014441A1 Liquid jet recorder |
| 08/20/1980 | EP0014395A1 Indicator circuit including a bridge circuit with means for error indication independent of voltage source variation |
| 08/12/1980 | US4217542 Self inverting gauging system |
| 08/06/1980 | EP0013843A1 Current intensity detector for power regulation devices in domestic electrical appliances |
| 07/29/1980 | CA1082814A1 Automatic comparison calibration device |
| 07/22/1980 | US4214234 Range tracking analog to digital converter for use with a bridge |
| 06/11/1980 | EP0012092A1 Security system |
| 05/28/1980 | EP0011087A1 Alarm device, particularly for automotive vehicles |
| 05/27/1980 | CA1078458A1 Compensation indicator for attenuation probe |
| 05/13/1980 | US4202218 Bridge circuit |
| 05/13/1980 | CA1077554A1 Rotary actuator with magnetic means to hold rotor stationary at predetermined position |
| 04/30/1980 | EP0010240A1 Medical thermometer |
| 04/29/1980 | US4200836 Apparatus for measuring insulation resistance in an operating three-phase ungrounded transmission line system |
| 04/22/1980 | US4198863 Electromagnetic torsional stiffness element |
| 04/16/1980 | EP0009712A1 Sensibility correction process for an electrical weighing apparatus and circuitry for putting this process into effect |
| 04/15/1980 | US4198595 Apparatus and method of phase shift compensation of an active terminated current transformer |
| 04/02/1980 | EP0009231A1 Circuit for measuring the diagonal voltage of a resistance bridge |
| 04/02/1980 | EP0009230A1 Circuit for producing a test tension |
| 03/04/1980 | US4191057 Flexible beam with transistor deposited on surface, wheatstone bridge, biasing |
| 03/04/1980 | CA1073058A1 Linearized bridge circuitry |
| 02/26/1980 | US4190805 Commutating autozero amplifier |
| 02/06/1980 | EP0007408A1 Device for the contactless measurement of the resistance of thin layers of material |
| 01/09/1980 | EP0006740A1 Improvements in strain gauges |
| 12/25/1979 | US4180774 Regenerative method and apparatus to control an elastic reset torque in movable apparatus |
| 12/11/1979 | US4177770 Compensation of sensor voltage for reference potential variation |
| 12/04/1979 | US4177423 Bridge circuits |
| 11/27/1979 | US4176314 Double integration method for measuring deviation of standard and reference analog quantities |
| 10/30/1979 | US4172384 Temperature measuring apparatus |
| 10/16/1979 | US4171509 Bridge drive circuit and method |
| 09/11/1979 | US4167697 Capacitive pick-off circuit |
| 08/21/1979 | US4165483 Capacitive pick-off circuit |
| 08/14/1979 | US4164695 Servo controlled tape indicating device |
| 07/10/1979 | US4160949 Auto-zeroed ohmmeter |
| 07/03/1979 | US4160171 Method and apparatus for determining the reference voltage in an impressed current corrosion protection system |
| 06/12/1979 | CA1056507A1 Apparatus for producing continuous graphic displays from intermittantly sampled data |
| 06/12/1979 | CA1056491A1 Apparatus for determining the arrival time of alternating signals |
| 06/12/1979 | CA1056457A1 A.c. capacitance measuring bridge |
| 06/05/1979 | US4157541 Device for detecting cable insulation faults |
| 05/22/1979 | US4156185 Direct current measuring system for rectifiers |
| 05/22/1979 | US4156183 Method of and means for measuring the level of test signals over selected wide band frequency ranges |
| 05/15/1979 | US4155038 Automatic comparison calibration device with ratio determination |
| 05/15/1979 | US4155004 Photoelectric transducing unit and system for detecting the sharpness of the image of object by means of the unit -and- a focusing arrangement |
| 05/08/1979 | CA1053924A1 Calibrating a measurement system including bridge circuit |
| 05/01/1979 | US4152599 Method for positioning a workpiece relative to a scanning field or a mask in a charged-particle beam apparatus |
| 04/17/1979 | US4150433 Automatic common mode rejection in an analog measuring system |
| 03/20/1979 | US4145706 Video display |
| 03/20/1979 | US4144764 Servo amplifier for an electrically damped accelerometer |
| 03/06/1979 | US4142405 Strain gauge arrangements |
| 03/06/1979 | CA1050122A1 Measuring systems |
| 02/27/1979 | US4142110 Circuit to eliminate DC bias |
| 02/13/1979 | US4138882 Transducer bridge circuit arrangement |
| 01/16/1979 | CA1046643A1 Moving time base mean value integrator |
| 01/09/1979 | US4134062 Limited rotation instrument rebalance apparatus employing a wiper having vibration damping |
| 12/12/1978 | CA1044326A1 Measurement system including bridge circuit |
| 12/12/1978 | CA1044037A1 Calorimetric flow monitor |
| 11/07/1978 | US4123934 Bridge circuit arrangement for a gas detection instrument |
| 10/24/1978 | US4122390 Apparatus for sensing and indicating the angular relationship between a towing and a towed vehicle |
| 10/03/1978 | US4118666 Automatic communication signal monitoring system |
| 10/03/1978 | CA1039809A1 Digital apparatus for rapidly detecting the growth of and identifying micro-biological organisms |
| 08/22/1978 | US4109201 Measuring bridge for an inspection or checking device by means of eddy currents |
| 08/15/1978 | US4107599 Electrode for an impedance measuring apparatus |
| 08/15/1978 | US4107585 Control devices |
| 07/25/1978 | US4103223 Closed loop for automatic substitution of a signal of equal amplitude |
| 06/27/1978 | US4096748 Wheatstone bridge measuring circuit |
| 06/13/1978 | US4095235 Recording apparatus |
| 05/16/1978 | US4090127 Device for measuring with direct current the total resistance of a circuit when there is also present an alternative component from the mains |
| 04/25/1978 | US4086524 Charge monitor for electric battery |
| 03/28/1978 | US4081801 Electronic measuring system with pulsed transducer |
| 03/28/1978 | US4081745 Digital-analog indicating system |
| 03/28/1978 | US4081744 Resistance bridge transducer conditioning circuit |
| 03/28/1978 | US4080829 Apparatus for automatically measuring the resistance and heating up of resistive electrical components |
| 03/21/1978 | US4080657 Weight measuring system with automatic gain correction |
| 03/21/1978 | US4080074 Automatic zeroing circuit to compensate for dark currents or the like |
| 02/14/1978 | US4074272 Spectrophotometer having independently controlled chart scale expansion and chart format selection |
| 02/14/1978 | US4074190 Signal measuring apparatus |
| 01/31/1978 | US4071814 Dual-output bridge for bidirectional control |
| 01/24/1978 | US4070692 Video digitizing system for single valued functions |
| 01/24/1978 | US4070615 Compensation indicator for attenuation probe |
| 01/17/1978 | US4069452 Apparatus for automatically detecting values of periodically time varying signals |
| 01/10/1978 | US4068166 Method and apparatus for measuring percent error of an impedance |
| 12/20/1977 | US4063447 Bridge circuit with drift compensation |
| 11/29/1977 | US4060715 Linearized bridge circuitry |
| 11/22/1977 | US4059797 A.C. capacitance measuring bridge |
| 11/08/1977 | US4057755 Thermal conductivity detector circuit |
| 10/25/1977 | US4055078 Strain transducer |
| 10/18/1977 | US4054836 Transformer ratio-arm bridge with improved balancing means |
| 10/18/1977 | US4054833 Capacitance measuring system |