humidity

Precision Sensor Board Update

        I have continued working on this project and found a probe cover and cable housing. By not using the back of the cable housing I’ve been able to modify a RM Young 41390 Sensor Junction Box and make a usable Pressure, Temp, Humidity device to fit inside the multi-plate radiation shields. I’ve made some changes to the board connections so that it will solder to the probe housing ...Read More

Precision Sensor Board

I recently designed a board that incorporates digital pressure, temperature, and dewpoint sensors I’ve called the PTU board. I deal with weather balloon tracking systems and the information sent back from the radiosondes is usually called PTU data (Pressure, Temperature, and Humidity). I’ve written 2 new Arduino libraries for the pressure and temp and reused an existing library for the...Read More

Protecting circuits from moisture

I have had several questions lately asking what is the best way to prevent corrosion on the datalogger circuit boards.  Even if your boards are deployed in a waterproof enclosure, they will be subjected to high humidity inside the case, usually caused by condensation in the air in the box.  Occasionally you might also get a stick, leaf, wire, or something else that crosses the edge of the waterpro...Read More