Polimaster PM1621A User Manual

11
1.4 Design and theory of operation
1.4.1 The dosimeter comprises the following main blocks and modules:
- radiation detector;
- microprocessor;
- LCD;
- secondary power supply;
- IR-transceiver;
- non-volatile memory.
The block diagram of the dosimeter is shown in Figure 1.1.
Figure 1.1 – Block diagram of the dosimeter
A Geiger-Muller tube with a filter for spatial-energy formation of sensitivity, which
converts photon radiation quanta to electric pulses, is used as a radiation detector. The
detector has a high-voltage power supply.
Backlight
driver
Quartz
generator
Microprocessor
IR-
transceiver
Battery
1.5 V
Secondary
power supply
Radiation
detector
DAC
of temperature
compensaton
LCD
RAM
High voltage
power supply
Control
buttons
Alarm
(audible, vibro
and light)

Polimaster PM1621A Specifications

General

Brand	Polimaster
Model	PM1621A
Category	Measuring Instruments
Language	English