摘要:
An apparatus for holding a starter motor for testing has a base, a first pad mounted to the base that provides a support rest to a first side of the starter motor, a ratcheting arm having a second pad for contacting a second, opposite side of the starter motor, and a pivotal ratchet assembly to grip the starter motor between the two pads.
摘要:
An apparatus for supporting an alternator for testing has a base, a turret having a socket defined therein, and a holding pin having two ends with a head at one end adapted to be inserted into the socket and retained therein. An elongated extension portion extends from the turret when the head is inserted in the socket, and engages with a portion of the alternator.
摘要:
An oscilloscope adapter for a portable electronic device includes a hardware interface connector and a computer program memory. The memory stores computer program instructions that direct the electronic device to collect data representative of a signal from an external source and display the data as a waveform comprising individual data values as a function of time. The user may select one or more of the scales of the graph. The adapter also may include one or more of a model waveform database, a collected waveform database, an application-specific database, and a language database.
摘要:
An apparatus and method for determining pressure and vacuum comprising an adapter that links to a digital tester. The adapter is comprised of at least one pressure sensor, a power source, converter and an interface cable. The pressure sensor attaches to the system to be measured. The detected pressure is transmitted to the adapter and then to the digital tester for displaying to the user. The apparatus can detect pressure beyond 500 pounds per square inch.
摘要:
A parasitic drain tester that measures a parasitic battery drain. A current measuring circuit includes a capacitor smoothing the current distribution within the circuit, a first interface connected to a vehicle power source and the capacitor, a second interface accommodating an outside connection for communication, a first processor connected to the second interface and the capacitor, the processor communicating with the second interface and performing analysis and calculation of the data received, and a converting unit connected to the processor, converting the signal received through the first interface from a first form to a second form. The first unit is connected to the current measuring circuit, and includes a memory storing information retrieved from the current measuring circuit through the second interface, and a second processor analyzing the information received from the current measuring circuit and providing instructions to the first processor through the second interface.
摘要:
An apparatus and method are provided that allow a scan tool to communicate with a data link connector in a vehicle. A cable that can automatically multiplex its connections in order to make the appropriate connections between the scan tool and a data link connector based on a communication protocol of the vehicle under test. This allows the scan tool to communicate with the data link connector regardless of the pins being used by the communication protocol of the vehicle.
摘要:
An apparatus and method are provided that allow a scan tool to communicate with a data link connector in a vehicle. A cable that can automatically multiplex its connections in order to make the appropriate connections between the scan tool and a data link connector based on a communication protocol of the vehicle under test. This allows the scan tool to communicate with the data link connector regardless of the pins being used by the communication protocol of the vehicle. The cable is also capable of switching between a signal ground and a chassis ground in order to provide the scan tool with a reference signal.
摘要:
An engine starter motor tester applies power to a motor under test at the level normally applied while that motor is installed in a vehicle and monitors the ripple in the driving current. The ripple rate, scaled by the number of windings used in the construction of the motor, provides a direct reading of the shaft speed of the unloaded motor. This number allows a valid inference concerning the state of health of the motor, and is more certain than an estimate for an unloaded motor based on operator experience and motor “sound”. A complete test apparatus includes a stored lookup table, allowing the user to key in a product brand and model number and read directly both the RPM and the test apparatus's rating of the motor under test, expressed in terms such as percentage of life remaining.
摘要:
An engine starter motor tester applies power to a motor under test at the level normally applied while that motor is installed in a vehicle and monitors the ripple in the driving current. The ripple rate, scaled by the number of windings used in the construction of the motor, provides a direct reading of the shaft speed of the unloaded motor. This number allows a valid inference concerning the state of health of the motor, and is more certain than an estimate for an unloaded motor based on operator experience and motor “sound”. A complete test apparatus includes a stored lookup table, allowing the user to key in a product brand and model number and read directly both the RPM and the test apparatus's rating of the motor under test, expressed in terms such as percentage of life remaining.
摘要:
A vehicular diagnostic tool configured to interface with a plurality of vehicular computing systems that each utilize a different communications protocol. The tool includes a transceiver that itself includes a voltage threshold controller and a current threshold controller. Also, a method of using a single vehicular diagnostic tool to communicate with a plurality of vehicular computing systems that each utilize a different communications protocol.