Patents
Patents for G01R 19 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof (29,850)
06/1976
06/15/1976US3964039 Luminescent solid state status indicators
06/15/1976US3964008 Target reset mechanism
06/15/1976US3963909 Method and apparatus for computation in a kinetic analyzer
06/08/1976US3962694 Method and apparatus for monitoring an electrically actuated tool
06/08/1976US3962631 Circuit for determining a measure value of a rectified a-c voltage
06/08/1976US3962630 Electrical continuity and voltage testing device
06/01/1976US3961253 Electrical voltage indicating device
05/1976
05/25/1976USRE28833 Analogue to digital converter
05/25/1976US3959786 Isolated two-wire transmitter
05/25/1976US3959694 Electrical circuit protection apparatus
05/25/1976US3959667 Overcurrent trip device
05/18/1976US3958212 Power failure warning system
05/18/1976US3958170 Full wave rectifiers
05/18/1976US3958132 Slope change detector
05/18/1976US3957592 Measurement of polarographic current
05/11/1976US3956697 Voltage detector for detecting different voltage levels in conductors of an electrical power line
05/04/1976US3955139 Zeroing circuit
04/1976
04/27/1976US3953793 Optimal determination of signals affected by interference or disturbance
04/20/1976US3952247 Level indicating apparatus for P.C.M. transmitting system
04/13/1976US3950742 Adjustable line isolation monitor
04/13/1976US3950699 Device for measuring a signal having a very high noise level
04/06/1976US3949294 Level indicating system
03/1976
03/30/1976US3947761 Peak level indicator
03/30/1976US3947706 Voltage and temperature compensated linear rectifier
03/16/1976US3944921 Logic level test probe with grated oscillator
03/16/1976US3944920 Current measurement
03/16/1976US3944919 Direct current measuring system for rectifiers
03/16/1976US3944906 Detector device for converting A.C. inputs to an D.C. output and a system for using the same
03/16/1976US3944903 Position transducer arrangement
03/16/1976US3944370 Exposure time indication apparatus
03/09/1976US3943437 Apparatus for investigating the electrostatic properties of powders
03/09/1976US3943435 Transformer having improved voltage and phase characteristics
03/09/1976US3943367 High frequency optically coupled differential voltage probe with logarithmic response
03/09/1976US3943349 Method and device for recording, in real time, non uniformly variable data with compression of data during periods of relatively slow variation thereof
03/02/1976US3942095 AC-to-DC converter system
02/1976
02/24/1976US3940699 Radio frequency energy signalling apparatus
02/24/1976US3940692 Apparatus for monitoring recurrent waveforms
02/24/1976US3940679 Nickel-cadmium battery monitor
02/17/1976US3939433 Feedback circuit
02/17/1976US3939365 Pulse peak detector
02/10/1976US3938131 Energizing circuit for a visual display element
02/10/1976US3938040 Apparatus for measuring a signal voltage including a current source with a control input on which said signal appears
02/10/1976US3937989 Temperature discrimination apparatus
02/03/1976US3936720 Half-wave rectifier circuit
01/1976
01/27/1976US3935512 Circuit for the compensation of current interference signals
01/20/1976US3934239 Adjustable electronic load-alarm relay
01/20/1976US3934195 Portable electric capacitor tester using an LED indicator
01/20/1976US3934188 Self-testing battery discharge indicator
01/20/1976US3934136 Threshold signal circuitry for scanning apparatus
01/13/1976US3932797 Self-testing battery discharge indicator