Posts Tagged ‘ST-3’

Smart Tweezers and LCR-Reader Verification Tool for Distributors

// September 4th, 2014 // No Comments » // Distributors, LCR-Reader, News, ST-5S, ST5

Siborg Systems Inc. and the Institute of Automation and Electrometry of the Russian Academy of Sciences in Novosibirsk, Russia have developed a verification tool for Smart Tweezers and LCR-Reader.

“Although all Smart Tweezers PCBs are calibrated after the PCB is made, the verification jig is still a desirable tool for incoming control and troubleshooting devices returned due to a failure or malfunction. It can also be used for periodical traceable calibration if the jig is calibrated by a certified agency. The best thing about the jig is that it can be used for any model of Smart Tweezers after the ST-3 where, for the first time, the 4-wire connection was utilized.” says Michael Obrecht, the Director of R&D at Siborg.

The jig uses 16 known components: 8 resistors, 4 capacitors and 4 inductors of different values in Smart Tweezers measurement range. The device being tested is connected to the jig using a 4-wire connection. When on, the jig connects to every component, with the results shown on the Smart Tweezers’ display allowing for comparisons to be made between the measurement values and the known values.

The 4-wire connection is an essential part of the jig; this connection reduces the noise generated by the connections on the PCB. The connections are controlled by a microprocessor and a set of 32 relays. After a switch, the micro-controller goes into the sleep mode in order to reduce the effect of the digital circuitry on the measurement.