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U.S. Geological Survey Open-File Report 2009-1101

The Partition Intervalometer: A Programmable Underwater Timer for Marking Accumulated Sediment Profiles Collected in Anderson Sediment Traps: Development, Operation, Testing Procedures, and Field Results

Return to: Title Page » Introduction » Development » Function and Operation » Testing Procedures and Results » Results of Field Tests » Summary » Acknowledments » References » List of Figures » Appendix 1: Programming the Intervalometer » Appendix 2: Synopsis of Field Notes

Figure 4.  Exterior view of Intervalometer. The disc shown is approximately 1 ¼ inches in diameter, and the instrument is approximately 3 9/16 inches in diameter by 12 inches in length.

Figure 4. Exterior view of Intervalometer. The disc shown is approximately 1 and one-quarter inches in diameter, and the instrument is approximately 3 and nine sixteenths inches in diameter by 12 inches in length.


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