Abstract:
Electronic measurement instruments are used to measure, process and record the massive
quantitative data. Precise quantitative data obtained through sampling could generate
useful environment models of water bodies such as lake and sea. The technological
ability of system control is largely based on the quality of the adopted models and the
data fed into them: both the models and the data depend on measurements. A wide range
of commercial instrument is available to measure underwater temperature and depth. The
instruments are expensive to maintain and purchase. A simple measuring device was
developed locally to test the feasibility of measuring underwater depth and temperature.
Underwater depth is not measurable in the measuring device developed because of a fast
varying output signal, while temperature is measurable at a range from 10 °C to 35 °C
with an accuracy of ±3 °C at room temperature.