Patents for G01D 3 - Measuring arrangements with provision for the special purposes referred to in the subgroups of this group (6,287)
04/1982
04/14/1982EP0049419A1 Process for correcting a measuring signal
04/14/1982EP0049304A1 Method of compensating for temperature-induced errors in alternating current measurement circuits, particularly remote clearance measurement instruments, and apparatus for carrying out the method
04/07/1982EP0048851A2 Digital electrical length or angle measuring system
03/1982
03/30/1982US4322721 Self-monitoring warning installation
03/23/1982US4321548 Frequency-voltage and voltage-frequency converters
02/1982
02/18/1982WO1982000519A1 Temperature compensation for transducer components
02/09/1982US4315211 Preamplifier for voltage measuring instrument with non-interacting zero and span controls
02/09/1982CA1117784A1 Density monitoring apparatus
02/02/1982US4314174 Piezoelectric transducer drive having temperature compensation
02/02/1982US4314146 Analog display device
01/1982
01/12/1982CA1116265A1 Method of and system for measuring physical quantities of a rotating body at many points thereof
01/07/1982WO1982000054A1 Strain gauge and electrical circuit for its adjustment and calibration
01/06/1982EP0042917A2 Digital length and angle measurement system
12/1981
12/22/1981US4306461 Meter incorporating a digital fullscale setting device
12/22/1981CA1114913A1 Capacitive measuring system with automatic calibration means
12/22/1981CA1114635A1 Temperature measurement apparatus
12/01/1981US4303984 Sensor output correction circuit
10/1981
10/29/1981WO1981003094A1 Temperature compensating pressure sensor amplifier circuits
09/1981
09/30/1981EP0036504A2 Measuring device
09/22/1981CA1109562A1 Voltage to rate converter circuit
09/15/1981US4289975 Dissipating electrical charge
09/15/1981CA1109136A1 Outage indicating apparatus for meter telemetry systems including data recorders
09/09/1981EP0035403A1 Voltage measuring instrument and preamplifier therefor
09/01/1981US4286873 Refractometer cell with integral lens
08/1981
08/28/1981EP0024426A4 Method and apparatus for compensating for drift of the null point of a measuring device.
08/26/1981EP0034459A2 Cereal grain moisture content measuring apparatus
08/18/1981US4284352 Heat exchanger for refractometer
08/12/1981EP0033328A1 Device for compensation of transfer functions.
08/11/1981US4283140 Spatially homogenizing optical modulator
08/04/1981US4282578 System for linearizing non-linear transducer signals
07/1981
07/14/1981CA1105112A1 Control meter usable as a potentiometric or photoelectric device
06/1981
06/30/1981US4276648 Midvalue signal selection and fault detection apparatus and method
05/1981
05/26/1981US4270119 Dual slope system A-D converter
05/19/1981US4268786 Position pickup for numerically controlled machine tools
05/12/1981US4267515 Distortion factor meter circuit
05/05/1981US4265536 Electrical zeroing of light beam
04/1981
04/28/1981US4263803 Calibration system and method of using same
04/21/1981US4262675 Blood pressure measuring instrument having compensation circuit
04/15/1981EP0027099A1 Refractive-index responsive light-signal system
03/1981
03/19/1981WO1981000774A1 Signal selection from redundant channels
03/17/1981US4257107 Measuring device
03/17/1981CA1097815A1 Process for the measurement of absolute values by means of a non-linearly working measured value emitter and a measuring device for carrying out the process
03/11/1981EP0024786A2 Printing apparatus
03/11/1981EP0024626A2 Method and devices for controlling a recording unit
03/11/1981EP0024545A2 Pneumatic force transducer
03/11/1981EP0024426A1 Method and apparatus for compensating for drift of the null point of a measuring device.
03/10/1981US4255709 Device for providing an electrical signal proportional to the thickness of a measured coating with an automatic range switch and sensitivity control
03/03/1981US4254469 Method and apparatus for offset error correction
02/1981
02/24/1981US4253051 Phase locked loop having electrical zeroing
02/19/1981WO1981000452A1 Device for compensation of transfer functions
02/18/1981EP0023935A1 Device for continuously controlling the functioning of a display or recording instrument, method of operating same and application of the method
02/17/1981US4251776 Arrangement for raising a signal to a higher power
02/17/1981US4251769 Indicator and limit value alarm device
02/03/1981US4248095 Method of and system for measuring physical quantities of a rotating body at many points thereof
01/1981
01/20/1981US4246640 Automatic recorder abscissa scaling
01/20/1981CA1094211A1 Indicating recorder
01/07/1981EP0020877A1 Signal-evaluation circuit for an apparatus for measurement of extinction
01/07/1981EP0020876A2 Signal processing circuit
01/06/1981CA1093164A1 Biasing and scaling circuit for transducers
12/1980
12/23/1980US4241303 Linearization circuit
12/23/1980US4240747 Refractive-index responsive light-signal system
12/23/1980CA1092203A1 Gain ranging amplifier system
12/02/1980US4236639 Method of automatically sorting thin sheet articles
11/1980
11/25/1980CA1090163A1 Continuous integrator control linkage
10/1980
10/29/1980EP0017933A2 Method and system for engine control
10/14/1980US4228439 Level and frequency measuring recorder
10/07/1980US4227144 Error compensation of synchro control transmitters
09/1980
09/23/1980US4223549 Oxygen monitoring circuit with built in testing means
09/16/1980CA1085929A1 Physical quantities electric transducers temperature compensation circuit
09/04/1980WO1980001851A1 Method and apparatus for compensating for drift of the null point of a measuring device
07/1980
07/29/1980US4214474 Density monitoring apparatus
07/22/1980US4214250 Indicating recorder
07/08/1980US4211971 Ratio meter for capacitive-type displacement converter
07/08/1980CA1080993A1 Pneumatic pressure transmitter responsive to temperature and humidity
07/01/1980US4210866 Linearizing circuit for a non-destructive testing instrument having a digital display
07/01/1980US4210024 Temperature measurement apparatus
06/1980
06/17/1980US4208625 Capacitive measuring system with automatic calibration
06/10/1980US4206648 Impedance measuring circuit
05/1980
05/27/1980CA1078219A1 Wheel and disc continuous integrator
05/13/1980CA1077625A1 Dynamic linearization system for a radiation gauge
05/06/1980US4201979 Conveying data signals between relatively rotatable units
04/1980
04/15/1980US4198677 Method and apparatus for compensating a sensor
04/01/1980US4196382 Physical quantities electric transducers temperature compensation circuit
03/1980
03/18/1980US4193300 Signal linearizing circuit for internal combustion engines
03/11/1980US4193039 Automatic zeroing system
03/05/1980EP0008371A1 Circuit with a rectifier and a logarithmic amplifier
02/1980
02/26/1980US4190804 Signal-conditioning circuits
02/19/1980US4189017 Weighing apparatus including digitalization error correcting means
02/06/1980EP0007414A1 Multiplexed multidigital display control method and display operated by this method
01/1980
01/15/1980US4184166 Locomotive performance recorder
01/01/1980US4181961 Process for the measurement of absolute values by means of a non-linearly working measured value emitter, and a measuring device for carrying out the process
12/1979
12/04/1979CA1067471A1 Device for recording measuring values
11/1979
11/20/1979US4174639 Bridge circuits
10/1979
10/30/1979US4172389 Temperature compensated bridge circuit
10/30/1979US4172388 Differential pressure sensor with dual level overrange protection
10/09/1979US4170311 Level measuring system
10/02/1979US4169387 Transducer for mechanical measured variables, especially a pressure transducer
10/02/1979US4169380 Electronic circuit arrangement
09/1979
09/25/1979US4169243 Remote sensing apparatus
08/1979
08/07/1979CA1059792A1 Combined pressure and temperature correction apparatus for gas meters
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