TEMPERATURE CONTROL SYSTEM, DATA ACQUISITION ON REFERENCE SENSOR, AND DATA ACQUISITION ON CAPACITIVE TEST SENSOR ON AIR HUMIDITY SENSOR TEST CHAMBER FOR CHANGES IN RELATIVE HUMIDITY (RH) OF AIR AT SEVERAL TEMPERATURE POINTS
In the development of a humidity sensor, the testing phase is an evaluation for observing the characteristics of the sensor that is being developed. However, in the ITB laboratory, there are still deficiencies in the test method, especially in terms of time efficiency and limitations for controll...
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| Format: | Final Project |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/50882 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | In the development of a humidity sensor, the testing phase is an evaluation for
observing the characteristics of the sensor that is being developed. However, in the
ITB laboratory, there are still deficiencies in the test method, especially in terms of
time efficiency and limitations for controlling temperature. Therefore, a device was
designed that could manipulate the humidity and temperature of the test room
according to the test requirements in shorter time than the previous method. The
subject of this article are the heating subsystem, cooling subsystem, data
acquisition on reference sensors, and data acquisition on capacitive test sensors
that are part of the overall system. The heating and cooling subsystem has a control
system that uses if conditions that make the system turn on or off. Data acquisition
on reference sensor is implemented by calibrating the four sensors used and then
the data from the four sensors will be used to determine the temperature and
humidity conditions on the test sensor. Data acquisition on the capacitive test
sensor is done by measuring the frequency generated by the astable multivibrator
circuit. |
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