Test & Measurement


R-L-C measurement meter in a tweezer for SMD eases testing

13 July 2005 Test & Measurement

The Smart Tweezer from Excelta is an innovative answer to the old problem of testing and troubleshooting SMD components.

Smart Tweezers have a unique mechanical and electronic design that incorporates a built-in direct precision SMD probe designed for component evaluation on the production line, PCB debugging, component impedance testing and sorting of SMD components.

The integrated SMD probe and measurement head, combined with automatic recognition of measurement modes (R, C and L) and the range of measurement, allows the operator, while using only one hand, to focus on the component under test. As a result, testing, sorting and evaluation of components becomes more efficient and cost effective.

When measuring inductance, capacitance or resistance, the primary display shows the present reading, while the secondary display (above this) shows the reading of additional parameters or measurement conditions. The bar graph provides an analog indication of the measured input. In the auto mode, it can measure DC voltage from 100 μV to 800 mV, and in the trace mode, it shows an oscilloscope-like picture of AC voltage. Ranges are: Resistance, 0,1 Ω to 9 MΩ; Capacitance, 10 pF to 900 μF; and Inductance, 1 μH to 999 mH.

The Smart Tweezer can also measure continuity, and has beeper sounds for resistance readings below threshold, or to indicate a momentary open circuit. It uses a 1,5 V LR44 alkaline or air-zinc battery and weighs 53 grams.



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