The Integrated Electronics and Data Acquisition Package (IEDP) is used to control, and monitor the SG as well as log SG data. It includes the Gravimeter Electronics (GEP-3),Data Acquisition System (DDAS-3), Temperature Controlled Electronics Enclosure(TREE), and all necessary hardware for a turnkey solution for operation of the gravimeter. Uninterruptible Power Supplies (UPSs), Power conditioning and Lightning Protection equipment (PLP) can also be provided for installations where poor power quality is expected or protection from severe lighting storms is required. This equipment is described in the following section.
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The IEDP is designed to improve performance by eliminating many sources of offsets, drift, and gaps in the gravity data record, as well as improve reliability. When combined with the appropriate UPS/Power Conditioning package, it allows the SG to be manufactured and tested in its final configuration thereby eliminating surprises from unanticipated interactions between components. These include: ground loops, DVM aging, sensitivity to temperature and humidity variations, and variations in ac power. It allows the operator remote access to all gravimeter subsystems allowing the operator to quickly and easily verify optimal performance on a daily basis. If problems arise, the operator can rapidly determine the cause of failure without traveling to the installation site. A GWR engineer in San Diego can also retrieve data from the system in a standard format that enables rapid analysis and consultation with the operator. In this way, problems can be rapidly diagnosed and repaired. This can improve long term data quality and reduce the manpower required to operate an SG.