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ZEBRA-24.60
ZEBRA-24.60
User Manual
15
October 17, 2019
1.4.4
Principle of operation.
1.4.4.1
The principle of operation is based on the linear frequency modulation; it means that
the operational frequency of the generator varies linearly within narrow limits. The
transmitter radiates microwave energy that is reflected back into the receiver by
objects within the detection zone.
1.4.4.2
Changes in the received signal caused by the Doppler Effect, when an object
moving in the detection zone, are amplified and processed according to the given
algorithm. If these changes exceed the threshold value, the sensor generates an
alarm signal.
1.4.4.3
The linear frequency modulation and the division of the detection zone into 12
(twelve) subzones increase the noise immunity and the time until the arrival of the
first false alarm.
1.4.5
Operation.
1.4.5.1
After the power has been supplied, the sensor starts monitoring of its performance
within 15 seconds.
After the automatic control has been done, the sensor switches to the standby mode.
When triggered, the sensor generates an alarm within 3 seconds and then switches to
the normal state within 5 seconds.
Содержание ZEBRA-24.60
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