Development of an Expendable Particle Sensor

Period of Performance: 09/01/1991 - 01/12/1993


Phase 2 SBIR

Recipient Firm

SEA Tech, Inc.
PO BOX 779
Corvallis, OR 97339
Principal Investigator


The purpose of this research is to develop an expendable sensor that allows the rapid determination of suspended particle concentrations in natural marine environments. At present there exists no method for near-synoptic measurement of patricle distributions, yet the three dimensional particle distribution and its temporal development are of major significance to every oceanographic discipline. During Phase I we built and tested foward scattering sensor at 880 nm wavelength. In Phase II we propose to miniaturize the electronics and to integrate the sensor into an expandable delievery device and multifunction processor to be developed by Sparton. We propose to field test the first 24 expendable particle-temperature sensors within one year after initiation of the contract. After two years, we will have completely tested the sensor design, sensitivity, and accuracy as well as the communication electronics and software.