CUMULATIVE EXPOSURE METERING SYSTEM

摘要

An electron dosimeter system which measures the length of time that an individual, or object, is exposed to discrete strength levels of a stimulating medium. The dosimeter device is comprised of a sensing device with associated electronics, a converter and a processing circuit. The sensing device/ electronics produces an electrical output, representing the strength level of the stimulating medium, which is converted to electrical pulses. The output of the converter is comprised of electrical impulses whose frequency or repetition rate represents the strength of the stimulating medium. The output of the converter is then processed in a circuit having a plurality of storage devices, each of which represent a discrete strength level of the stimulating medium. The processor produces a plurality of timed interval pulses which are addressed to the particular storage device representing that strength level of the stimulating medium. An external and separate reader with display can be plugged into the processing circuit for reading the time interval of a particular strength level in any of the storage devices, when desired.