Alarm dosemeter

Abstract

Abstract PURPOSE:To reduce power consumption by a simple circuit, by stopping a part of the supply of a power source or the oscillation of a system clock when the output pulse of a radiation detector is not generated for a definite period. CONSTITUTION:The output B of a radiation detector 1 is connected to a timer circuit 8 consisting of a FF 11 and a counter 12 and a central control circuit 3. The output of a system clock generating circuit 9 composed of a pulse oscillation circuit 13 is connected to the timer circuit 8 and, when the output B of the radiation detector 1 is not generated for a definite period, the output of the FF 11 is reversed. The outputs E1, E2 of the timer circuit 8 are connected to the pulse oscillation circuit 13 and the control transistor 15 of a power source circuit 10, and the generation of a system clock C and the output D of the central control circuit 3 are connected and the supply F of a power source to an output control circuit 4 generating alarm output is stopped and the reduction of power consumption is achieved.

Inventors

• 👤 Kiyokazu Takamukai

Bibliographic Details