Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I'm looking to the low cost RH sensor....I've one...but ...i've no idea to design the signal conditioning for this sensor...capacitive RH sensor...needs ac inputs?....
could somebody explain to me?...is there humidity sensor like temperature sensor...LM35DZ...
I expect that the capacitance increases with humidity, and the capacitive loss will also increase. You can use R-C time constant to measure capacitance with DC, but you need to know the temperature to calculate the relative humidity.
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