Accession Number : ADP000947

Title :   Development and Performance of a Vector Measuring Current Meter (VMCM),

Corporate Author : WOODS HOLE OCEANOGRAPHIC INSTITUTION MA

Personal Author(s) : Weller,Robert A.

Report Date : FEB 1980

Pagination or Media Count : 15

Abstract : To develop the capability of making accurate measurements of horizontal velocity in the upper ocean a vector measuring current meter (VMCM) has been developed. Orthogonal cosine response propeller sensors directly measure vector performance. A flux gate compass senses the instrument heading, and the velocity components are vector averaged and recorded on cassette tape. The instrument has the capability of one year long deployment at depths of up to 5000 m. Laboratory tests have documented the performance of the VMCM, and both laboratory and field results show that the VMCM is capable of making accurate measurements of horizontal velocity in the upper ocean.

Descriptors :   *Oceanographic data, *Measuring instruments, *Performance(Engineering), *Vector analysis, *Ocean currents, Logs(Velocity meters), Experimental design, Shallow water, Horizontal indicators, Velocity, Shrouded propellers, Water flow, Torque, Rotation, Measurement, Electronics

Distribution Statement : APPROVED FOR PUBLIC RELEASE