GSSI SIR 30, Руководство пользователя

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Geophysical Survey Systems, Inc. SIR® 30
Manual
MN 93-101 Rev E 2
Key New Features of the SIR 30
Increased Data Acquisition Speed:
The SIR 30 can transmit at a maximum Pulse Repetition Frequency
(PRF) of 800 KHz. This PRF enables the SIR 30 to collect more than three-quarters of a million samples
per second. Unlike other GPR systems, the maximum PRF is not reduced when operating multiple
channels simultaneously. This unique capability allows the GPR User to collect more data faster than ever
before.
Note:
Not all GSSI antennas are capable of operating at the maximum Pulse Repetition Frequency of the
SIR 30. Consult your antenna manual\documentation for the appropriate antenna PRF. Setting the SIR 30
PRF higher than the maximum antenna PRF will result in poor data quality.
Data resolution:
The SIR 30 incorporates fixed 32-bit sampling. This means that the SIR 30 has superior
dynamic range than other systems using 8, 16 or 24 bit sampling. The increased dynamic range will enable
the User to recover weaker signals with SIR 30 than other GPR systems.
Data Processing:
The SIR 30 system applies filters and gain during data acquisition for display purposes
only. All data is stored raw. The acquisition filters and gain are stored with the data file and will be
automatically applied in RADAN 7 if so desired.
SIR 30 Physical Characteristics and Connections
Front Panel Connectors
Figure 1: SIR 30 front panel.
The front panel of the SIR 30 has the more frequently accessed connectors as well as the status lights
(Figure 1 above).
Power On/Off:
This button will turn the SIR 30 On and Off. To turn on the SIR 30, push this button in so
that it stays depressed. The SIR 30 will begin its boot up sequence. If you are running the user interface
from a separate laptop, there will be no immediate indication from the SIR 30 that it has started. Please be
patient. After approximately 10 seconds, the blue ring around the button will illuminate and you will hear
the SIR 30 cooling fans start. The SIR 30 has completed start-up when you hear a short tone. Push the
power button again to turn off the SIR 30. There will be no immediate indication that the system is
shutting down. After approximately 30 seconds the SIR 30 will complete the shut down process. Please