Abstract
The general description of the TEM tiltmeter has been already presented [1]. In the present paper, details of the electronic devices of the instrument is introduced, which consist of the following four sections, 1) differential transformer as a transducer, 2) exciter of the differential transformer and amplifie, 3) power-supply and4) recorder and reset circuit, The author's intention of designing the electronic devices is as follows:1) The life time should be as long as possible.2) Electronic parts should be easily obtained at the market.3) Repairing time should be as short as possible. It has beea cleared that MTBF (mean time between failures) of the present electronic circuits, shown on the Weibull distribution paper, is only 4 years.
