Patents
Sitemap › G01 - Measuring; Testing › G01R - Measuring electric variables; Measuring magnetic variables › G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
Patents for G01R 31 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere (152,264)
09/1981
09/15/1981US4290014 Analog/digital system for evaluating battery characteristics
09/15/1981US4290013 Method of and apparatus for electrical short testing and the like
09/15/1981US4290007 High power and high voltage transistor control circuit
09/15/1981US4289836 Rechargeable electric battery system
09/15/1981US4288911 Method for qualifying biased integrated circuits on a wafer level
09/09/1981EP0035365A2 Method and apparatus for fault detection
09/08/1981US4288745 Printed circuit board testing means
09/08/1981US4288739 Dynamic load for testing regulated power supplies
09/08/1981US4288734 Bidirectional integrator
09/08/1981CA1108699A1 Apparatus for detecting loss of ac power supply and loss of current
09/08/1981CA1108431A1 Echometre for localising defects affecting light conductors
09/01/1981US4287594 Function test evaluation apparatus for evaluating a function test of a logical circuit
09/01/1981US4287473 Nondestructive method for detecting defects in photodetector and solar cell devices
09/01/1981US4287465 Apparatus for regulating the charging of a storage battery
09/01/1981US4286858 Voltage detecting device for camera
08/1981
08/31/1981EP0020714A4 Digital tester.
08/25/1981US4286215 Method and apparatus for the contactless monitoring carrier lifetime in semiconductor materials
08/25/1981US4286173 Logical circuit having bypass circuit
08/25/1981US4285118 Cable harness assembly and electrical testing machine
08/19/1981EP0033858A1 Circuit arrangement for measuring the electric characteristics of user telephone lines
08/18/1981US4285059 Circuit for test of ultra high speed digital arithmetic units
08/18/1981US4284946 Failure monitor for crystal filters
08/18/1981US4284944 Battery charging device having battery state indicating function
08/18/1981US4284939 Device for detecting opposite phase and open phase
08/18/1981US4284937 Load current detecting apparatus of direct current motors
08/11/1981US4283720 Apparatus for monitoring the operation of electronic equipment
08/11/1981US4283631 Bean scanning and method of use for ion implantation
08/11/1981US4283620 Arrangement for determining the length of arbitrary shift registers
08/11/1981US4282866 Battery operated portable hydromassage appliance
08/04/1981US4282483 Probe for determining p or n-type conductivity of semiconductor material
08/04/1981US4282479 Test apparatus for locating shorts during assembly of electrical buses
08/04/1981US4281888 Apparatus for testing leads of fuse holders
08/04/1981US4281449 Method for qualifying biased burn-in integrated circuits on a wafer level
07/1981
07/29/1981EP0032694A1 Arrangement for determining the position of a switch and for the control of the accompanying conductors for short- and open-circuit
07/28/1981US4281386 Systems for detecting faults in electric power systems
07/28/1981US4281283 Audio cable tester
07/28/1981US4281260 Controlled power supply for integrated circuits
07/28/1981US4281230 Anti-arc prod
07/28/1981CA1105998A1 Component testing station
07/23/1981WO1981002066A1 Method for measuring the charge state of an accumulator and device for implementing such method
07/22/1981EP0032222A1 Testing device
07/22/1981EP0032197A1 Test procedures for integrated semi-conductor circuits allowing the electric determination of certain tolerances during the photolithographic stages
07/21/1981US4280220 Electronic testing system
07/21/1981US4280097 Isolated DC voltage monitoring system
07/21/1981US4280092 Ground fault interrupter tester
07/21/1981CA1105594A1 Methods of and apparatus for controlling capacitance unbalance-to-ground in cables
07/15/1981EP0031906A2 Method and apparatus for determining friction associated with an electric motor
07/14/1981US4278979 Method and apparatus for testing survival radios
07/14/1981US4278971 Electric control circuit for safety apparatus in automotive vehicles
07/14/1981US4278933 Means and method for determining susceptibility to radiated energy
07/14/1981US4278931 Location of contact faults on electrically conductive cables
07/14/1981US4278519 Electrode assembly for determining the identification of metals and metal alloys
07/14/1981US4277977 Method and apparatus for inspection of ceramic parts for defects
07/14/1981CA1105086A1 Overcurrent and ground fault responsive trip unit for circuit breakers
07/08/1981EP0031501A2 Diagnostic and debugging arrangement for a data processing system
07/07/1981US4277831 Computer aided wire wrap operator check system
07/07/1981US4277746 Gas-insulated electric apparatus and method of detecting partial discharge therein
07/07/1981US4277741 Microwave acoustic spectrometer
07/07/1981US4277740 Cable tester for multipair cables
07/07/1981US4277699 Latch circuit operable as a D-type edge trigger
07/07/1981US4277679 Apparatus and method for contact-free potential measurements of an electronic composition
07/07/1981US4277175 Method and apparatus for inspecting printed wiring boards
07/07/1981US4276883 Battery monitor for digital cardiac pacemaker
07/07/1981CA1104653A1 Electrical cell charge energy measuring method and apparatus
06/1981
06/30/1981US4276509 Probe for testing conductor of an antenna windshield
06/30/1981CA1104211A1 Apparatus and method for electrically testing multi- core cable
06/24/1981EP0030723A1 Method and apparatus for the automatic testing of semi-conductor components
06/24/1981EP0030592A1 A method of locating earth faults on conductors
06/23/1981US4275451 Method of and apparatus for testing of mass-produced articles
06/23/1981US4275352 Sea water conductivity cell
06/23/1981US4275351 Arrangement for monitoring batteries
06/17/1981EP0030497A1 Device for the determination of the torque supplied by an asynchronous electric motor
06/17/1981EP0030445A2 High power and high voltage transistor control circuit
06/16/1981US4273421 Semiconductor lifetime measurement method
06/16/1981CA1103303A1 Method and apparatus for measuring cathode emission slump
06/10/1981EP0030154A1 Testing emergency battery equipment
06/10/1981EP0030006A1 Circuit arrangement for the remote supply of intermediate posts in a telecommunication contrivance with monitoring of the output voltage of at least one supply unit
06/10/1981EP0030004A1 Circuit arrangement for the remote supply of intermediate posts in a telecommunication contrivance by means of direct current series supply
06/09/1981US4272722 Determination of electric current flow patterns
06/09/1981US4272716 Device for simulating the operation of an accumulator battery, in particular a traction battery for an electric vehicle
06/03/1981EP0029439A1 Method and apparatus for measuring and displaying the distance to an occured short circuit or similar line fault on an alternating current powerline
06/02/1981US4271516 Automatic testing of electrical circuitry
06/02/1981US4271515 Universal analog and digital tester
06/02/1981US4271472 Wire wrap operator check system
06/02/1981US4271443 Quench detector
06/02/1981US4271388 Apparatus including a shift register for testing different types of cable sets
06/02/1981CA1102412A1 Fault monitoring and indicator system
05/1981
05/26/1981US4270178 Measuring system incorporating self-testing probe circuit and method for checking signal levels at test points within the system
05/26/1981US4270116 High speed data logical comparison device
05/26/1981US4270109 Bounce-free lifting device
05/26/1981US4270080 Automatic battery charge apparatus and method
05/26/1981US4269494 Battery level warning device
05/26/1981CA1102008A1 Large scale integrated circuit with external integral access test circuitry and method
05/20/1981EP0028719A1 Probe assembly for testing integrated circuits
05/20/1981EP0028625A1 Bidirectional integrator.
05/12/1981US4267594 Decommutator patchboard verifier
05/12/1981US4267583 Memory test device with write and pseudo write signals
05/12/1981US4267507 Circuit probing apparatus
05/12/1981US4267505 Failure sensor for a gas detector
05/12/1981US4267503 Method and instrument for testing the operating characteristics of a capacitor
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