32 results about "Continuity tester" patented technology

A method and apparatus is provided for determining when a battery, or one or more batteries within a battery pack, undergoes an undesired thermal event such as thermal runaway. The system uses a conductive member mounted in close proximity to, or in contact with, an external surface of the battery or batteries to be monitored. A resistance measuring system such as a continuity-tester or an ohmmeter is coupled to the conductive member, the resistance measuring system outputting a first signal when the temperature corresponding to the battery or batteries is within a prescribed temperature range and a second signal when the temperature exceeds a predetermined temperature that falls outside of the prescribed temperature range.

The invention is a compact multiple function tool for use with computer systems made of a housing having a front plate and a back plate and an overall length of less than three inches, separated by interior plates connected by pivots and a unit of numerous implements including a miniature flashlight, a chip puller, a first screwdriver having a small Phillips head with a length less than two inches, a second screwdriver forming a small flat head with a length less than two inches, a continuity tester with a miniature indicator light, a miniature wire stripper, a miniature crimper, and a laptop case cracker, wherein the implements are pivotally coupled to the housing and the miniature flashlight is positioned on the front plate of the tool.

The invention discloses a method and a system for testing swinging cross or breaking of a multi-core cable. The method includes the steps of A, selecting a one cable core of a tested cable and performing a continuity test by respectively connecting two ends of the cable core on a testing channel of a continuity tester; B, selecting another cable core and repeating the step A until continuity tests for all cable cores are finished; C, selecting one pair of cable cores of the tested cable and respectively connecting one ends thereof on a test channel of a capacitance unbalance tester to test capacitance difference of the pair of the cable cores relative to other cable cores and a metal sheath; D, selecting another pair of cable cores and repeating the step C until all capacitance unbalance tests for the cable cores are finished; E, selecting cable core pairs with abnormal test results obtained in the step C and the step D, combining the cable cores two by two, respectively connecting one ends on the continuity tester to finish the continuity test between two random cable cores, obtaining result of the swinging cross, and then recording the result.

A kit is provided for making a continuity tester from an existing pliers tool and an existing continuity checker to check electrical continuity of a wire. The kit includes a first sleeve adapted to slip onto a free end of a first jaw of the pliers tool and which includes a protrusion that faces laterally, and a second sleeve adapted to slip onto a second jaw and which includes a pocket for holding the wire while the protrusion is piercing the wire. The first and second sleeves are tubular, and are held on by resilient tabs that frictionally engage the jaws. A connector adapted to frictionally engage the probe of the continuity checker is provided either on the first sleeve or on a third sleeve engagable with the first handle of the pliers tool. In one form, the kit is factory-installed as a permanent part of the pliers tool.

The invention is a multiple function tool for use with computer systems made of a housing having a cover plate and a back plate connected by a plurality of rivets, as a unit, a plurality of implements connected to a housing, wherein the plurality of implements include a flashlight, a chip puller, a first screwdriver having a small Phillips head, a second screwdriver forming a small flat head, a continuity tester with an indicator light, a wire stripper, a crimper, and a laptop case cracker, wherein the plurality of implements are pivotably coupled to the plurality of rivets and the flashlight is positioned on the cover plate.

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 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 continuity testing device has a probe element for contacting a conductor. A continuity testing circuit is coupled to the probe element. The continuity testing circuit will indicate continuity when a resistance level below a predetermined set-point is monitored. The continuity testing circuit has at least one of a vibrating or audible sensor to indicate electrical continuity of the conductor. The vibrating and/or audible sensor indicates a strength of the resistance level of the circuit tested by a quality of vibration or sound from the vibrating and/or audible sensor. A grounding wire is coupled to the continuity testing circuit. The grounding wire has a magnetic contact coupled thereto to ground the continuity testing device to any ferrous metallic grounded element. A housing is provided for holding and storing the probe element and the continuity testing circuit.

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.

A continuity tester for testing continuity of long electrical lines having two units with one unit located at each end of the line to be tested. A battery is provided with each unit. A ground lead is provided with each unit for connecting the battery through a buzzer to ground. Further, a probe lead is provided for connecting the battery to one end of the line to be tested. The first unit uses the battery with one polarity and the second unit uses the battery with a reversed polarity.

The test device of the present invention is configured to test the continuity and polarity of a plurality of fibers housed by a cable that extends between the multi-fiber connectors on either end of the cable. In its most basic form, the test device of the present invention includes first and second light sources; an optical splitter positioned between the second light source and the connector at the first end of the cable housing the plurality of fibers under test; and a receiver and configured for optical communication with the second end of the cable. The first light source creates a first light pattern, which is distinct from a second light pattern created by the second light source.

A power lead testing system comprises a test unit for applying standard voltage and continuity tests to the lead and an electronic tag integrated with the lead having a countdown timer, said tag communicating with said test unit which resets the timer for a defined period when the lead passes the applied voltage and continuity tests and also incorporates a circuit breaker which is triggered when the lead fails either the voltage or continuity test or when the countdown time elapses, thus isolating the lead.

The present invention provides a method for continuity test of integrated circuit. By using both pins of integrated circuit to measure a current of an electrostatic discharge device, the contact resistance of the integrated circuit can be obtained by calculating. The method comprises the steps: First, a DUT (device under test) is provided, and the DUT includes a second pin and the second pin connecting zero reference potential. Then, a voltage is applied to a first pin of DUT. Finally, the current through said first pin and said second pin would be measured. Therefore, the testing result of the DUT could be more precise and the quality of the DUT would be made sure.

A portable caddy for fuse service repair which contains fuse blade and receptacle cleaning tools, a voltage continuity tester, a fuse removal tool and a separate fuse container.

A continuity testing device has a probe element for contacting a conductor. A continuity testing circuit is coupled to the probe element. The continuity testing circuit has at least one of a vibrating or audible sensor to indicate electrical continuity of the conductor. A grounding wire is coupled to the continuity testing circuit. The grounding wire has a magnetic contact coupled thereto to ground the continuity testing device to any ferrous metallic grounded element. A housing is provided for holding and storing the probe element and the continuity testing circuit.