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Using three vehicles, two trailers, one backhoe, and three people, it is feasible to construct three sites in five days. |
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Have truck, will travel. |
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To reduce interference from surface noise and to protect the equipment, Transportable Array seismometers and associated electronics are buried inside a 42 inch diameter plastic tank which will form a vault. The tank is set into seven foot deep pit and concrete is poured around the rubber membrane.
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Burying a 42 inch diameter plastic tank. |
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Custom trailer with water tank, room for cement bags, and onboard mixer. |
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Site layout at the Lava Cap Winery. The vault (in the right foreground) contains the seismometer and associated electronics. The mast in the background supports a solar panel and antennae. |
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View into the vault. The seismometer is placed at the bottom and encased in sand. Electronics line the wall. |
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Sensor alignment, leveling and insulation takes over an hour. |
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The power distribution panel is affixed to the wall inside the vault and includes a CDMA Cell radio, Trace C12 charge controller, and Phoenix terminal strip. |
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The mast supports an 80 W solar panel, GPS antenna, and Cell omni directional antenna. |