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7386411 |
Automatic hi-pot test apparatus and method
An exemplary automatic hi-pot test apparatus ( 20 ) includes a high voltage supply ( 21 ), a transmission device configured for transmitting an electronic device ( 26 ) to be tested, a connecting...
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7304481 |
Apparatus for testing electric cables
In one preferred embodiment, an apparatus for testing a cable includes an interface for connecting to a connector of the cable, many resistors, a socket, and a meter for testing resistance of the...
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6954076 |
Aircraft multi-function wire and insulation tester
An aircraft multi-function wire and low voltage insulation tester, having a time domain reflectometer, a digital multi-meter, and a matrix switch integrated in a computer, and a connector having a...
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6927579 |
Parallel arc fault diagnostic for aircraft wiring
A system for locating parallel arcing faults in a set of wires is described. The system includes three devices that can be used in combination or alone. A first device applies a current to a wire...
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6876203 |
Parallel insulation fault detection system
A device for detecting and locating arcs in a set of wires is discussed. The device comprises a probe for discharging controlled current to an exposed portion of a wire in the set of wires. The...
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6836124 |
Capacitance monitoring systems
A capacitance monitoring system includes a capacitance gauge head for monitoring the capacitance between a measuring electrode and an electric cable travelling along a path parallel to the...
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6744257 |
APPARATUS, A METHOD FOR TESTING AN ELECTRICAL WIRING SYSTEM, A COMPUTER PROGRAM FOR TESTING AN ELECTRICAL WIRING SYSTEM AND A COMPUTER-READABLE STORAGE MEDIUM HAVING STORED THEREON A COMPUTER PROGRAM FOR TESTING AN ELECTRICAL WIRING SYSTEM
A method and apparatus are provided to quickly electrically test an electrical wiring system that has a large number of contacts by maximally reducing the number of electrical tests. A plurality of...
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6639410 |
Insulation resistance measuring apparatus for capacitive electronic parts
Provided is an insulation resistance measuring apparatus capable of highly precisely measuring an insulation resistance characteristic of a capacitive electronic part in a short period of time...
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6424160 |
Testing insulation between conductors
A method of testing the insulation between N electrical conductors, where 2 n−1 <N≦2 n where n is an integer greater than 1 is disclosed which consists of carrying out n tests, each test...
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6407542 |
Implementation of a multi-port modal decomposition system
A mechanical fixture for providing a rigid connection between a multi conductor cable or other connecting hardware and measurement equipment is disclosed. The fixture includes a test head...
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6385561 |
Automatic fault location in cabling systems
A method and apparatus ( 12-20, 32 ) for automatically locating faults in a network of signal carriers (cables) utilises an interrogation waveform which is pulse-like in form and receives composite...
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6201383 |
Method and apparatus for determining short circuit conditions using a gang probe circuit tester
A method for determining whether short circuits exist among networks within a circuit under test includes bringing test probes into contact with each such network and switching groups of the test...
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5757265 |
Multiple-cable field bus system
A field bus system may be used in which transmission ability of the system can be maintained even if communication error occurs due to noises or failure of a transmission line. The system can be...
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5744967 |
Apparatus for detecting intermittent and continuous faults in multiple conductor wiring and terminations for electronic systems
A latching tester for testing continuity of wires in a system has an array of pin electronics cells, where each pin cell couples a signal to a row sense line and a column sense line when a change...
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5677633 |
Cable test instrument having interchangeable performance modules
A test instrument (50) for testing a cable (52), the test instrument having a main unit (54) and an interchangeable performance module (56). The main unit of the test instrument contains signal...
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5627474 |
Continuity checker for allocating individual cores of multi-core cables
Proposed is a continuity tester for a plurality of electric conductors. For this purpose, a signal transmitter for admitting different individual identification signals to such conductors is...
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5617033 |
Method and apparatus for electrically testing multi-core cable
A plurality of cores of a multi-core cable are collectively conducted at first ends side thereof and are isolated from one another at second ends side thereof. The cores are engaged at the first...
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5539321 |
Apparatus for measuring the crosstalk in a cable
An instrument to measure crosstalk between conductor pairs is configured to transmit a signal at one pair and receive the signal at another pair. The spureous or parasitic crosstalk at the...
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5488306 |
Open and short fault detector for a differential interface
An improved cable fault detection system which makes the fault detection independent of the ground shift between units coupled to the interface. This fault detection is based on differentially...
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5321363 |
Two-terminal circuit element measuring apparatus for performing contact checks
A two-terminal circuit element measuring apparatus of the present invention is capable of distinguishing a loose connection between a DUT and the measuring apparatus from a high impedance in the...
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5247259 |
Cable testing method and apparatus
A machine for making and testing a cable harness assembly having planar, multi-conductor cable terminated to insulation displacement contacts housed in connectors. The machine includes a test...
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5228072 |
Multiwire-pair telecommunications test system
A dual unit diagnostic system for testing the physical status of a multi-pair cable. Each unit comprises connectors which are connectable to the cable wire pairs, and switches that are connected to...
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5220285 |
System for testing the electrical continuity and insulation of the electrical conductors of a portion of wiring
A system for electrical continuity and insulation testing of the electrical conductors of a portion of wiring. Outputs (11b.1, 11b.2, 11b.3) of the connecting elements of the conductors are...
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5029274 |
Apparatus and method for testing the integrity of wiring ensembles
An apparatus and method for testing the integrity of wiring cables provides a transmitter and a receiver that electrically connect to opposite ends of group of wires to be tested. The transmitter...
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4992739 |
Continuity tester
A continuity tester comprising a transmitter operatively connected to the ends of a plurality of wires which are extended through an electrical conduit. The other ends of the wires are connected to...
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4937519 |
Apparatus and method for identifying conductors
An apparatus and method for identifying individual conductors in a multi-conductor cable, which will also identify a short or open circuit condition. One end of the multi-conductor cable is...
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4901003 |
Telecommunications wiring test apparatus and method including two color display indicating correct wiring
Telecommunications (e.g. ISDN) wiring is tested by sequentially supplying to each wire at a first location a pulse sequence identifying that wire while connecting to a common potential other wires,...
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4835479 |
Apparatuses for testing multi-core cables for leakage between cores
In order to test the leakage between cores of a multicore cable, a test voltage is applied by a first switch in turn to the cores of a cable whose other end is disconnected. A second switch selects...
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4814693 |
Data cable test apparatus and method
Apparatus and methods for testing multiconductor data cables. A test connector having plural elements is engaged with one connector of the data cable, and a test signal is applied to a preselected...
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4794339 |
Method and apparatus for electrically testing telecommunications cables
Testing of conductors of a telecommunications cable in which, after stripping cable material surrounding one end of the core, the conductors in the end are separated from one another and are...
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4772845 |
Cable continuity testor including a sequential state machine
Apparatus for testing a multiconductor cable is disclosed. The disclosed cable testor comprises a counter, the output of which is applied as a test signal to a portion of the conductors in the...
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4748402 |
Circuit identifier tester for telecommunication pairs
A telecommunications circuit pairs identifier device that has a transmitter portion that is connected to a predetermined group of pairs at the trunk line termination point and a receiver that is...
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4536703 |
Method and apparatus for testing cable wire connected to terminals at a remote location
The integrity and connection of cable wires (10-13) extending between two banks of terminals (20-1 to 20-4 and 16-19) are checked for shorts of the wires to ground, to battery wiring between each...
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4510435 |
Apparatus for electrically testing multi-core cables
An apparatus for electrically testing a multi-core cable comprises a pick-up unit (6) for picking up a core separately on a one by one basis from a group of cores (101) at one end of the cable...
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4471293 |
Multi-conductor cable test unit
There is disclosed a cable test unit for use in testing multi-conductor cables containing a plurality of wire pairs. The invention includes means for supplying a constant D.C. voltage; a...
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4418250 |
Telephone cable splicers test set and method of testing
Method and apparatus for testing pairs of conductors of a telephone cable, including method and apparatus for measuring the capacitance of a circuit component such as a pair of conductors. The...
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4418312 |
Apparatus for testing multi-conductor cables
Apparatus for testing multi-conductor cables for wiring errors, illustratively open, shorted or crossed conductors, is described. This apparatus, at the so-called far end of the cable, establishes...
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4399400 |
Apparatus for testing multiconductor cables and having transition circuit means for extending its capability
A test system for evaluation of a terminated cable harness examines both the correctness of cable conductor connections and the correctness of the load circuitry to which the conductors are...
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4384249 |
Cable testing apparatus and method
A cable testing apparatus and method are disclosed, the apparatus and method being particularly useful as a seismic cable tester to enable rapid cable check-out, and, as a battery operated portable...
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4375050 |
Portable automatic multiple test system for multi-pair cables
A portable, compact test set for multi-pair cables having connectors, where the connectors are mated to adapters in the test set and pulses are generated which sequentially test each pair for open...
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4282479 |
Test apparatus for locating shorts during assembly of electrical buses
A test apparatus for locating electrical shorts that is especially suited for use while an electrical circuit is being fabricated or assembled. A ring counter derives input pulses from a squarewave...
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4277740 |
Cable tester for multipair cables
Multipair cable testing apparatus for detecting transpositions and reversals in the cable pairs includes master unit (100) located at one end of the cable and remote unit (200) located at the other...
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4224690 |
High speed parallel scanning means for testing or monitoring the assembly of multiwire harnesses
High speed solid state apparatus is described for learning, testing and monitoring the assembly of multiconductor harnesses. Testing a harness having a very large number of end points within the...
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4015200 |
Multiconductor cable testing apparatus
Multiconductor cable testing apparatus for sequentially testing the conductors of an electric cable for open-circuit, short-circuit and for incorrect connection, the results of the tests being...
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3986106 |
Portable set for automatic sequential test of multiple wire pairs
A portable cable test set includes a master unit connected to one end of a cable made up of multiple wire pairs and a remote unit connected to the other end. The master unit generates a series of...
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3982180 |
Apparatus for testing multiconductor cables for continuity, correct connections, and the absence of short circuits between conductors
Apparatus is disclosed for testing a cable by connecting Zener diodes or similar acting structures between terminating contacts at one end of the cable and then selectively connecting a series...
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3818329 |
CABLE TESTING CIRCUIT EMPLOYING A PAIR OF DIODES TO DETECT SPECIFIC CONDUCTOR PAIR CONDITIONS
A test circuit in which the difference between the junction resistances of a pair of semiconductor diodes when forward biased and when reverse biased is employed to detect whether a conductor pair...
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3763430 |
CIRCUIT TESTING METHOD AND APPARATUS
Method and apparatus for testing complexes of circuits, such as printed circuit boards and the like, for continuity of desired circuits and absence of short circuiting are provided. A circuit board...
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3723867 |
APPARATUS HAVING A PLURALITY OF MULTI-POSITION SWITCHES FOR AUTOMATICALLY TESTING ELECTRONIC CIRCUIT BOARDS
An apparatus for automatically testing electronic printed circuit boards is provided with a plate having a plurality of resiliently biased contacts disposed in the same configuration as the...
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3721899 |
CONTINUITY TEST AND INDICATING CIRCUIT
The circuitry of modules is checked by the use of a switching device which electively connects all possible combinations of pairs of terminals of a selected module to a sensing circuit. The sensing...
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