Abstract:
The Water Level Sensor circuit was designed to sense level of Dionized Water (DI
Water) in Humidity Reservoir of HERAEUS HC4033 Climatic Chamber. This
chamber is useful in order to test the life span of Integrated Circuits (ICs) in ICs
manufacturing. The proposed system consists of a set of sensor for measuring level of
DI Water in Humidity Reservoir and its monitoring system. This Water Level Sensor
circuit is attached with floating switch to indicate level of DI Water in Humidity
Reservoir in a range of O to 6 liters using 6 volt of direct current (DC). In this project,
the designing of computer-based monitoring system for water level sensor was
developed. Data acquisition (DAQ) card system was used to collect data regarding the
installed system performance, for evaluation purposes. The collected data were first
conditioned using precision electronic circuits and then interfaced to Personal
Computer (PC) using data acquisition card. The MATLAB software program was
used to further process, display and store collected data in PC disk. The proposed
architecture permits the rapid system development and has the advantage of flexibility
in the case of changes, while it can be easily extended for monitoring the water level
sensor operation