| Patents for G01R 35 - Testing or calibrating of apparatus covered by the other groups of this subclass (8,105) |
|---|
| 04/08/1986 | US4581585 Apparatus and method for automatically calibrating a sweep waveform generator |
| 03/10/1986 | CN85100349A Self-adjustable universal eletionic counter |
| 02/26/1986 | EP0172402A1 Circuit for the fluctuation compensation of the transfer factor of a magnetic-field sensor |
| 02/18/1986 | CA1200840A1 Watt-hour testing device |
| 01/14/1986 | US4564810 Aluminum cladding thickness measurement probe and instrument having an automatic calibration and readout circuit coupled to a differential amplifier circuit |
| 12/27/1985 | EP0165865A2 Method and apparatus for testing integrated circuits |
| 12/10/1985 | US4558426 Transducer multiplexer |
| 11/12/1985 | US4553091 Automatic vertical calibration method and system for an oscilloscope |
| 09/17/1985 | CA1193664A1 Hall effect device test circuit |
| 09/10/1985 | US4541065 Direct volts calibrator |
| 08/28/1985 | EP0152770A1 Supervised control device |
| 08/07/1985 | EP0150410A1 Vector network analyzer |
| 08/06/1985 | CA1191547A1 Test system for waveguide arc detector circuits |
| 06/19/1985 | EP0145184A2 Apparatus for digitally controlled calibration of frequency response of amplifiers |
| 05/28/1985 | CA1187937A1 Automatic calibration system for signal amplifier circuits |
| 04/30/1985 | US4514687 Hall effect device test circuit |
| 04/09/1985 | US4510454 Apparatus for digitally controlled calibration of frequency response of amplifiers |
| 02/13/1985 | EP0132925A1 Diagnostic system for a raster scan type display device |
| 02/05/1985 | US4498040 Reference voltage circuit |
| 01/29/1985 | US4496901 Electroexplosives, rf power safety margin measurement method |
| 01/29/1985 | CA1181813A1 Current transformer demagnetization circuit |
| 01/22/1985 | US4495413 Process for calibrating ion-current amplifiers in mass spectrometers and mass spectrometer for carrying out the process |
| 01/01/1985 | US4491794 Hall effect device test circuit |
| 09/26/1984 | EP0119711A1 Lock-in amplifiers |
| 07/24/1984 | US4461571 Test system for wave guide arc detector circuits |
| 07/17/1984 | CA1171136A1 Calibration system for analog-to-digital conversions |
| 06/26/1984 | US4456875 Demagnetization circuit for current transformers |
| 05/22/1984 | US4450411 Automatic calibration system for signal amplifier circuits |
| 05/22/1984 | CA1167925A1 Calibration apparatus for analog-to-digital converter |
| 02/28/1984 | US4434400 Circuit for supervising an electronic electricity meter |
| 02/21/1984 | US4433298 Calibrated apparent surface voltage measurement apparatus and method |
| 01/10/1984 | US4425545 Eddy current probe calibration standard |
| 01/03/1984 | US4423958 Test apparatus for digital photoelectric length or angle measuring instrument |
| 11/16/1983 | EP0093802A1 Test system for waveguide arc detector circuits |
| 11/15/1983 | US4415927 Calibration reference signal generator |
| 11/15/1983 | US4415921 Automatic calibration system for video displays in vision testing |
| 10/26/1983 | EP0092303A1 Meter testing device and method |
| 10/12/1983 | EP0091397A1 Measuring arrangement for the exact positioning of the begin of the measuring range of a measuring converter |
| 08/23/1983 | CA1152564A1 Electroexplosives, rf power safety margin measurement method |
| 08/09/1983 | CA1151771A1 Method and apparatus for enhancing the output of an rms converter |
| 06/28/1983 | US4390837 Test unit for a logic circuit analyzer |
| 06/21/1983 | US4389708 Method and apparatus for enhancing the output of an RMS converter |
| 03/22/1983 | US4377781 Selectively adjustable voltage detection integrated circuit |
| 03/22/1983 | CA1143442A1 Active quadrature current reference source |
| 12/21/1982 | CA1138110A1 Automatic mrt system |
| 12/14/1982 | US4364027 Calibration apparatus for analog-to-digital converter |
| 07/06/1982 | US4338589 Autocalibration of compressed A/D converter |
| 06/29/1982 | US4337517 Method of automatically calibrating a microprocessor controlled digital multimeter |
| 06/15/1982 | US4335349 Simulated ohms generation method and apparatus for calibrating resistance type measuring instruments |
| 05/19/1982 | EP0051911A1 Method and apparatus for enhancing the output of a log-antilog type RMS converter |
| 05/04/1982 | US4328573 Precision phonocartridge interface |
| 04/27/1982 | US4327371 Method and apparatus calibrating a plurality of preamplifiers |
| 04/13/1982 | US4325040 Apparatus for automatic adjustment of an inductor in a tuned circuit |
| 03/30/1982 | US4322790 Calibration source for instruments to measure power and negative sequence current of dynamoelectric machines |
| 01/19/1982 | US4312015 Automatic MRT system |
| 01/06/1982 | EP0042878A1 Device for monitoring an amplifier stage |
| 10/20/1981 | US4296369 Active quadrature current reference source |
| 10/20/1981 | US4295359 Calibration apparatus for CML circuit test unit |
| 10/07/1981 | EP0036976A1 Test circuit for a digital electric length or angle measurement system |
| 06/09/1981 | US4272731 Thin film resistor microwave noise generator |
| 06/02/1981 | US4271390 Electric watt-hour meter testing device |
| 04/14/1981 | US4262248 System for servicing process instrumentation |
| 03/24/1981 | US4258310 Selectively adjustable voltage detection integrated circuit |
| 02/24/1981 | US4253155 Self-compensating measurement system |
| 02/24/1981 | US4253057 Compensation indicator for attenuation probe |
| 02/17/1981 | CA1095988A1 Calibrating and measuring circuit for a capacitive probe-type instrument |
| 02/03/1981 | US4249258 Self-calibrating voltage standing-wave ratio meter system |
| 01/27/1981 | US4247818 Automatic sensitivity adjustment apparatus for calibration of a non-destructive inspection instrument |
| 01/20/1981 | US4246534 Calibration method for lumped capacitance measurement of complex permittivity at HF, VHF and UHF frequencies |
| 11/25/1980 | CA1090420A1 Sweep calibration method and apparatus |
| 11/04/1980 | US4231150 Method of tuning a flyback transformer for minimum ringing |
| 08/26/1980 | US4219762 Wideband self-calibrated fiber-optic data link with fiber-optic storage |
| 08/05/1980 | CA1083246A1 Trace locator for a multi-trace recorder |
| 06/24/1980 | US4209786 Near carrier AM-FM calibration technique |
| 06/24/1980 | US4209739 Portable calibrator for d.c. circuit breakers |
| 05/27/1980 | CA1078458A1 Compensation indicator for attenuation probe |
| 05/13/1980 | US4203033 Radiation energy calibrating system and method |
| 04/29/1980 | US4200933 Method of automatically calibrating a microprocessor controlled digital multimeter |
| 01/15/1980 | CA1070006A2 Electrometer apparatus for reproduction machines |
| 11/20/1979 | US4175258 High level white noise generator |
| 08/07/1979 | US4163938 Calibrating device for control stations and indicators |
| 07/24/1979 | US4162531 Method and apparatus for programmable and remote numeric control and calibration of electronic instrumentation |
| 07/03/1979 | US4160211 Method and instrument for measuring the sensitivity of a radio receiver |
| 07/03/1979 | US4160208 Method of calibrating magnetic thickness gauges |
| 05/08/1979 | CA1053924A1 Calibrating a measurement system including bridge circuit |
| 12/19/1978 | US4130796 Calibrating and measuring circuit for a capacitive probe-type instrument |
| 11/28/1978 | US4127811 Auto-calibrating voltmeter |
| 11/28/1978 | US4127806 Shielded electrometer whose output is used to control width of pulses fed back to the shield and associated battery test circuitry |
| 11/14/1978 | CA1042189A1 Method for assembling and calibrating an electric circuit breaker |
| 09/05/1978 | US4112359 Frequency transducer circuit with output calibration |
| 08/22/1978 | US4109199 Three axis magnetometer calibration checking method and apparatus |
| 08/08/1978 | US4105932 "Slewed pulse" scope sweep calibrator |
| 05/23/1978 | US4091392 Skew correction |
| 05/09/1978 | US4088951 Microcomputerized electric field meter diagnostic and calibration system |
| 04/11/1978 | US4084135 System and method for checking the sensitivity and performance of an electromagnetic field variation detector |
| 04/04/1978 | US4083040 Trace locator for a multi-trace recorder |
| 03/21/1978 | US4080074 Automatic zeroing circuit to compensate for dark currents or the like |
| 01/24/1978 | US4070615 Compensation indicator for attenuation probe |
| 08/09/1977 | US4041382 Calibrating a measurement system including bridge circuit |
| 07/19/1977 | US4037154 Circuit for calibrating instruments |