Title :
Results of the dynamical tests of a special designed optical microstructure density probe based on the measurement of the refractive index
Author :
Waldmann, H.-C. ; Thiele, S.
Author_Institution :
Inst. fur Angewandte Phys., Kiel Univ., Germany
Abstract :
The authors describe their recent results of the evaluation of an in situ going refractive index sensor. This sensor allows them to determine the refractive index with a resolution of 5·10-7 and a precision of 1·10-6. Due to the principle of the method they are able to take measurements at a speed of 10000 samples/s. Comparisons were made to a high speed thermistor probe with a time constant of about 10 ms and a resolution of 0.1 mK. Both sensors were tested in a laboratory tank that was designed to test the dynamical behavior of in situ sensors. The results show the promising features of the authors´ further developed refractive index sensor
Keywords :
oceanographic equipment; oceanographic techniques; optical sensors; optical variables measurement; refractive index measurement; temperature measurement; temperature sensors; dynamical test; equipment; in situ probe; instrument; measurement technique; ocean; optical microstructure density probe; optical sensor; refractive index; refractive index sensor; salinity; thermal structure; thermohaline structure; underwater light; High speed optical techniques; Optical design; Optical refraction; Optical sensors; Optical variables control; Refractive index; Sensor phenomena and characterization; Testing; Thermistors; Velocity measurement;
Conference_Titel :
OCEANS '96. MTS/IEEE. Prospects for the 21st Century. Conference Proceedings
Conference_Location :
Fort Lauderdale, FL
Print_ISBN :
0-7803-3519-8
DOI :
10.1109/OCEANS.1996.569061
