32 results about "Continuity tester" patented technology

An electrical continuity tester adaptor for attaching to a conventional continuity tester comprising first, second and third members. The first member is operably configured to engage a female F-type connector. The second member is operably configured to engage a female RJ series type connector. The third member includes a plurality of electrical connections and a printed circuit board to facilitate the electrical connectivity between the first and second members.

A continuity testing device is provided which can reliably detect incomplete-fitting of the retainer of the connector. The continuity testing device includes a connector guide block into which the connector is inserted in a transverse direction and which is fixed above an opening formed on a cover plate of a case of the continuity testing device, a detection plate provided to the connector guide block and arranged above the connector so as to contact with the incompletely-fitted retainer of the connector when moved downward, a detection pin arranged at the detection plate, a continuity testing part arranged to move in the vertical direction toward the connector, a drive mechanism that operates the detection plate to move in the vertical direction in conjunction with the continuity testing part, and a switch that is activated by the detection pin when the detection pin is completely moved down to the switch.

The present invention is a multipurpose hand tool. The hand tool includes a substantially planar body, a continuity tester, and at least one triple-stacked socket wrench. The continuity tester has a single test lead connected to an indicator means connected to a power means connected to the substantially planar body.

A wire connector for a vehicle may include: a male connector having male terminals; a female connector having female terminals into which the male terminals of the male connector are inserted; and a circuit portion through which a current supplied by a continuity tester flows. The continuity tester can detect whether the male connector and the female connector are assembled without error.

A fluorescent lamp testing device 10 has a microcontroller 100 that controls tests for ballast discrimination as well as gas integrity, ballast operation, filament continuity and line voltage. The ballast discrimination test is performed by the microcontroller 100 in combination with a photodiode 30 and high / low pass filter 32. Gas integrity is tested with pulse width modulation and a high-voltage, step-up transformer (PWM / T) circuit 42 and an antenna 40. A built in continuity tester has input pins 52, 54 to test the continuity of the filaments in the fluorescent lamp 12. The antenna 40 and a voltage-divider / voltage-sensor connected to the secondary coil in the transformer test for ballast operation. A PCB conductive loop 18, rectifier 20 and op amp 22 test for line voltage.

A test key for bridging and continuity testing is provided, comprising at least one test unit, which is composed of a first strand and a second strand embedded or non-touching intertwined with each other. The strand comprising a closed hook, a corresponding extension and a corresponding connection. The corresponding connections are electrically connected to an external voltage by at least one test pad, wherein the closed hook of the first strand is parallel with the closed hook of the second strand. A first corner is formed between the closed hooks and the corresponding extension, causing the closed hook of the first strands to be adjacent and parallel with the closed hook and the extension of the second strand. Moreover, another corner is formed between the extension and the corresponding connection, causing the connection of the first strand to be adjacent and parallel with the extension of second strand, forming an intertwining pattern.

A continuity tester that has particular application for inspecting the insulation on the stator windings in an electric machine. The continuity tester includes a power supply, a brush having conductive bristles, and an analog-to-digital (A / D) converter. One terminal of the power supply is electrically coupled to the brush and another terminal of the power supply is electrically coupled to the A / D converter and the stator being tested. The conductive brush is selectively positioned against the exposed windings of the stator, and if an electrical circuit is formed as a result of loss of insulation, the potential at the input of the A / D converter drops, which can be detected. In one embodiment, the conductive brush is a manual brush that is moved across the stator windings, and in alternate embodiments the conductive brush is specially configured to be positioned against the conductive windings in an automated process.

A fluorescent lamp testing device 10 has a microcontroller 100 that controls tests for ballast discrimination as well as gas integrity, ballast operation, filament continuity and line voltage. The ballast discrimination test is performed by the microcontroller 100 in combination with a photodiode 30 and high / low pass filter 32. Gas integrity is tested with pulse width modulation and a high-voltage, step-up transformer (PWM / T) circuit 42 and an antenna 40. A built-in continuity tester has input pins 52, 54 to test the continuity of the filaments in the fluorescent lamp 12. The antenna 40 and a voltage-divider / voltage-sensor connected to the secondary coil in the transformer test for ballast operation. A PCB conductive loop 18, rectifier 20 and op amp 22 test for line voltage.

The invention discloses a ground network conduction comprehensive tester, which belongs to the technical field of ground network conduction test. A ground network conduction comprehensive tester comprises an AC current source, an ammeter, a voltmeter, four test terminals, a pair of The current line and a pair of voltage lines, the four test terminals include test terminal 1, test terminal 2, test terminal 3 and test terminal 4. The present invention innovatively uses the interference source as the test source to avoid the influence of interference, and the interference source Equivalent to a voltage source U and the equivalent circuit of the internal resistance R0, the greater the interference, the more accurate the test is achieved in the test, effectively avoiding the adverse effects of interference, and improving the measurement of the ground network conduction resistance under interference Accuracy, to achieve a comprehensive assessment of the state of the regional ground network, to determine the weak link of the ground network, and to accurately monitor the strong interference area to propose precise measures, and to provide targeted and precise measures to reduce the interference of the ground network.