26. February 2024 © Copyright 2024, PROCEQ SA 33
5.7 Depth of field
The depth of field setting sets optimized transmission parameters depending on the depth of
the object of interest.
The default setting is “Intermediate Field”:
Tx frequency: 40 kHz
Tx voltage: 100 V
Max Tx time: 1000 μs
This is a useful preset for a typical depth of 1.2 to 1.3m.
The operating frequency parameter defines the frequency of the pulse applied to the DPC-
transducer.
There are three other options:
“Near Field” for superficial objects – with a typical depth of 0.5 to 0.6m
Tx frequency: 60 kHz
Tx voltage: 50 V
Max Tx time: 500 μs
“Far Field” for deep objects – with a typical depth of 2.2 to 2.4m
Tx frequency: 30 kHz
Tx voltage: 150 V
Max Tx time: 200 μs
“Custom” – freely configurable by the user
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