Wearable dosimeter for HF or microwave radiation - has 3 section omnidirectional antenna feeding rectifier and mercury tube with electrolyte acting as current integrator

摘要

This dosimeter is worn by people working near microwave apparatus or high frequencies emitters and gives in Joules per square centimetre, the received dose of the wearer over a predetermined time. The device comprises an omnidirectional antenna, a rectifier and a current integrator. The integrator comprises a mercury tube in which a drop of electrolyte moves when a current flows in the tube. The drop of electrolyte is used as an index indicating the quantity of current which goes through the mercury tube and thus the quantity of energy. This dosimeter does not require any power supply. The omnidirectional antenna is formed by three rods located in a plane with an angle of 120 deg. between them.