X線装置用マルチテスタの試作

概要

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A small-sized multimeter has been made by way of trial, which will easily collect such data of the output of an X-ray apparatus as electrical value, time and exposure when the X-ray apparatus is safely kept under control. The multimeter, which has three meters, can measure primary voltage under load (V), exposure time (s), time error of synchronize switching (ms), electric volume of X-ray tube (mAs), current of X-ray tube (mA), total exposure (μC/kg) and exposure rate (nC/kg/s) by errors within ±3%. The active device of electrical circuit is mainly composed of twelve linear I.C.'s, four transistors, two F.E.T's, and six V.R.D.'s. The multimeter measures 15 cm. by 20 cm. by 30 cm. high and weighs 4.8 kg.
1979-07-01