THERMOHYGROMETER

Abstract

Thermohygrometerisadevicethatcombinesthefunctions ofathermometerwitha hygrometer.At the hospital,thermohygrometerused to measure levelsof humidity and temperatureofaroomoradevicethathasacertainstandard.Judgingfrom theimportanceof humidityandtemperatureoneachinstrumentandtheroominthehospital,theauthorsintend todesignatoolentitled"Thermohygrometer".

ThismoduleusesSHT 11sensortodetectthetemperatureandhumidity.SHT 11 isa singlechiprelativehumidity andtemperaturesensorwithmulti sensormodulehas been calibrateddigitaloutput.Sectionincludedapolymercapacityaselementsusedfor relative humiditysensorandastraintapeusedasatemperaturesensor.Therelationshipof temperature andhumiditythatis,whenthetemperatureincreases,thehumiditywilldecrease andthe capacitytoaccommodateincreasedwatervaporin theair. Whereasif thelevelmoisture decreases,thetemperaturedecreasesandwillleadtoincreasedhumidity.

Measurementdataisdonebycomparingthismodulethermohygrometerwithatool Thermohygrometer 5timesin3differentroomconditions.Basedondatameasurementand comparison,obtainedaverageerroronthetemperaturedata:±: 0.0135% andtheaverageerrorat

:±: 0.00154% humidit'sdata,sothatthesemodulescanbeusedasagauge,becausethetolerance limitsof errordoesnot exceed5%.

_{Keywords:Thermohygrometer,Temperature,Humidity,SHT 11}