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CSP-SNv Capacitor Charging Unit Operation
Manual
CSP-CSPSNV-8000/3
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Page
39
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56
1.7.2 Operation with a Sparker Sound Source
The CSP-SNv is designed for use with the Dura-Spark Sparker. The CSP-SNv is not
compatible with the Squid Sparker range of sparker sound sources due to the polarity
of the power supply.
The polarity of the CSP-SNv reduces tip wear to a minimum ensuring a stable
repeatable sound source.
A sparker consists of a number of electrodes in the (salt) water which creates a sound
pulse as the plasma bubble expands. The current into a sparker varies with cable
length and type as well as by the number of tips and the salinity of the water. Typical
values are shown below for AAE sparkers in seawater with a salinity of 35 ppm.
Energ
y
Dura Spark 80
Tips
Dura Spark 160
Tips
Dura Spark 240
Tips
Dura Spark 400
Tips
300J
1800A
2000A
2500A
500J
2400A
3000A
3500A
4500A
1250J
4500A
6000A
6500A
2000J
8500A
Operation of the CSP-SNv with a Non AAE Sound Source
When used with sparker sound sources from other manufacturers the operator must
ensure that the operational characteristics of the sparker are within the parameters of
the CSP-SNv. It is recommended that the operator measures the discharge current
level and rise time consulting with AAE before commencing survey operations to ensure
reliability / compatibility.
Dummy Load
AAE manufacture a dummy load with precisely designed characteristics which can be
used for testing of CSP-SNv units in the workshop to
avoid ‘water based dummy loads’.
Please check with other sparker manufacturers if their sparkers are compatible with the
specifications laid out in this manual.
Summary of Contents for CSP-SNv 1250
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