RELATIVE HUMIDITY CONTROL SYSTEM AND RESISTIVE SENSOR DATA ACQUISITION IN AIR HUMIDITY SENSOR TEST CHAMBER AGAINST CHANGES IN RELATIVE HUMIDITY (RH) OF AIR AT SEVERAL TEMPERATURE SET POINT

• Main Author: Abror Pramudyana, Rauf
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/50965
• Institution: Institut Teknologi Bandung

In a humidity sensor development, the sensor testing stage is an evaluation stage as well as a stage for observing the characteristics of the sensor being developed. However, in the ITB laboratory, there are still deficiencies in the test method, namely in terms of time efficiency and limitations for conducting temperature conditioning. Therefore, a device was designed that could manipulate the humidity and temperature of the test room according to the test requirements in less time than the previous method. The subject matter in this document is the humidifier subsystem, dehumidifier, and data acquisition on resistive test sensors that are part of the overall system builder. Humidifier and dehumidifier subsystems work with a humidity control system that uses if conditions to regulate the on and off conditions of the subsystems. Data acquisition on the resistive test sensor is done by measuring the output voltage value of the Wheatstone bridge circuit which converts the test sensor resistance value into a voltage value.