Patents
Patents for G01R 1 - Details of instruments or arrangements of the types covered by groups  or (27,269)
03/1988
03/02/1988EP0257833A2 Wideband high impedance card-mountable probe
03/02/1988EP0257832A2 Telescoping pin probe
03/02/1988EP0257724A2 Three-electrode sensor for phase comparison and pulse phase adjusting circuit for use with the sensor
03/01/1988US4728243 Carrier manual load/unload work station
03/01/1988CA1233522A1 Electric meter with electronic rolling demand register
02/1988
02/25/1988WO1988001390A1 Contact resistance measuring device and measuring needle therefor
02/25/1988DE3628697A1 Terminal adapter for multipole plug-and-socket connector
02/25/1988DE3628104A1 Contact element for test boards
02/24/1988EP0256939A1 Current-measuring device
02/24/1988EP0256541A2 Contacting device
02/24/1988EP0256368A1 Testing device for the double-sided stepwise contacting of equipped printed circuit boards
02/24/1988EP0256207A1 Watchdog circuit for transmission line sensor module
02/24/1988CN87205025U Multifunctional safety kilowatt-hour meter
02/23/1988US4727319 Apparatus for on-wafer testing of electrical circuits
02/23/1988US4727316 Transformer current sensor for superconducting magnetic coils
02/17/1988EP0255909A2 Testing device for the double-sided contacting of printed-circuit boards
02/16/1988US4725775 Resistor isolated burn-in socket board
02/09/1988US4724383 PC board test fixture
02/09/1988US4724377 Apparatus for testing electrical printed circuit boards
02/09/1988US4723908 Dielectric probe; method and apparatus including its use
01/1988
01/28/1988WO1988000718A1 Method for remotely detecting an electric field
01/28/1988WO1988000717A1 Liquid crystal display
01/26/1988US4721908 Apparatus for electronically testing printed cirucit boards or the like
01/26/1988US4721907 Apparatus for automated testing of surface mounted components
01/26/1988US4721903 Probe and method for electrically contacting surfaces with protective coatings
01/26/1988US4721198 Probe card clamping and changing mechanism
01/19/1988US4720675 Meter locking system
01/13/1988EP0252538A1 Entry circuit for a logic analyser probe, and logic analyser probe provided with such a circuit
01/13/1988EP0252080A1 Arrangement for the measurement of electronic units
01/12/1988US4719417 Multi-level test probe assembly for IC chips
01/12/1988US4719414 Current detection device having an extended frequency range of response
01/12/1988US4719408 Apparatus for indicating proper compensation of an adjustable frequency compensation network
01/07/1988EP0251040A1 Spring test probe and process for manufacturing it
01/07/1988EP0250934A2 Device for contacting micro-electronic modules being tested
01/07/1988EP0250620A1 Method and device for electrically testing printed circuits
01/07/1988DE3720229A1 Spring contact pin and a method for its production
01/07/1988DE3621909A1 Small test rods for film circuits
01/05/1988US4717871 Measuring symbol driving circuit for a digital multimeter
01/05/1988US4717347 Flatpack burn-in socket
12/1987
12/29/1987US4716365 Circuit tester
12/23/1987DE3719802A1 Device for testing test points on an electronic circuit board or the like as test specimen by means of contact pins
12/22/1987US4714879 Holding and testing device for electronic modules within flat carriers
12/17/1987DE3716240A1 Test adaptor, especially for an integrated circuit
12/16/1987EP0249511A1 Indicator with a needle and locating collar therefor
12/15/1987US4713607 Current sensing circuit
12/15/1987US4713014 Quick-release multi-module terminating assembly
12/12/1987CN86208707U Pointer protection device for electric instrument
12/10/1987DE3619053A1 Electricity cost meter
12/09/1987EP0248521A2 Electrical contactors
12/09/1987EP0248501A1 Detection system for detecting imperfections in a shielding against EM radiation
12/09/1987EP0248000A1 Packaging for electronic demand register
12/08/1987US4712062 Ground shield apparatus for giga-hertz test jig
12/01/1987US4709733 Electron tube pin-sensing and straightening device
11/1987
11/26/1987DE3716205A1 Spring contact pin for test devices
11/24/1987US4709207 Loading system
11/24/1987US4709206 Ouch saver circuit tester guide and methods of constructing and utilizing same
11/24/1987US4708661 Modified BNC connector for active probe
11/19/1987EP0245787A1 Spring test probe
11/19/1987DE3715171A1 Spring contact pin
11/19/1987DE3615995A1 Device for making contact, for measurement purposes, with the connecting wires of belted electronic components which are to be tested
11/17/1987US4707657 Connector assembly for a circuit board testing machine, a circuit board testing machine, and a method of testing a circuit board by means of a circuit board testing machine
11/17/1987US4707656 Circuit test fixture
11/17/1987US4707655 For testing partially conductive elements
11/17/1987CA1229425A1 Contact array assembly for a computer-controlled printed circuit board testing apparatus
11/12/1987DE3249770C2 Device for testing electrical circuit boards
11/10/1987US4705447 Electronic test head positioner for test systems
11/10/1987US4705333 Test probe for leadless devices
11/10/1987US4705329 Apparatus for electrical function checking of wiring matrices
11/07/1987CN86200002U Circuit detecting probe with a metallic needle
11/03/1987US4704575 Hall-effect current clamp
10/1987
10/28/1987EP0242542A1 Test adapter
10/27/1987US4703252 Apparatus and methods for resistivity testing
10/22/1987WO1987006352A1 Multimeter
10/21/1987EP0242224A1 Printed wiring board tester
10/20/1987US4701781 Pre-testable semiconductor die package
10/20/1987US4701703 Bed-of-pins test fixture
10/20/1987US4701702 Contact pin having a spring under tension
10/20/1987US4701700 Captivated, pre-loaded spring means for vacuum displaced circuit board testing
10/20/1987US4701696 Retargetable buffer probe
10/20/1987CA1228400A1 Electrostatic system analyzer
10/14/1987EP0240959A1 Clamp-on measuring device
10/13/1987US4700132 Integrated circuit test site
10/13/1987US4700130 Current-measuring arrangement with overload protection
10/13/1987US4700127 Microwave probe and rotary body detecting apparatus using the same
10/08/1987DE3633856A1 Housing for a portable measuring instrument
10/07/1987EP0239691A2 Potentiometer for a voltage-measuring instrument
10/01/1987DE3706652A1 Test adaptor
10/01/1987DE3610613A1 Measuring instrument housing
09/1987
09/30/1987EP0238886A1 Device for supplying an adapter with contact pins for a printed-circuit board testing device
09/30/1987CN87102433A Energy saving circuit for kilowatt-hour meter
09/29/1987US4697143 Wafer probe
09/29/1987US4696189 Housing for a measuring device
09/23/1987EP0237732A1 Spring-loaded contact pin for a testing apparatus
09/23/1987EP0237698A2 Electronic test head positioner for test systems
09/23/1987EP0237697A2 Electronic test head positioner for test systems
09/23/1987EP0237679A2 Probe heads
09/16/1987EP0236753A2 Test terminal
09/16/1987CN86104307A Voltage divider for voltage measuring instruments
09/15/1987US4694245 Vacuum-actuated top access test probe fixture
09/10/1987DE3606865A1 Device for fitting an adaptor with contact needles for a test facility for printed circuit boards and printed circuit board assemblies