Characterization Tests of Datawell HIPPY 120C Vessel Motion Sensor

This report describes the results of a series of tests conducted to characterize the performance of a vessel motion sensor - the HIPPY 120C. The HIPPY 120C was designed to measure heave, roll, and pitch motions so that errors caused by these motions can be removed from hydrographic data. The series of tests include lab tests, van tests, and field tests. Laboratory tests were conducted to examine the response to ideal, well- controlled motions. The effects of horizontal accelerations were examined by testing the device mounted in a van. Field tests were run to examine the performance in a realistic operating environment. The test results showed that the HIPPY is capable of meeting the error budgets proposed for NOS1 automated survey system. With the exception of physical size and low frequency response, the device appears to meet all NOS requirements which have been proposed for this type of device. 1982 OTES (Ocean Technology and Engineering Services) Library Public Domain 1930