Sensor Description:

The DT037 is a breathing sensor. Based on air speed and sensor volume the DT037 calculates the air volume the user breathes. The results are shown in liters per minute. The DT037 is composed of Fourier Systems’ egg-shaped sensor case and a unique breath sensor tube.

The DT037 is based on an extremely sensitive pressure sensor. The DT037 is also equipped with a unique breath sensor tube. Inside the tube there is a small disc, narrowing the tube at the middle. When air travels through the tube, pressure is created on one side of the disc, and vacuum is created on the other side. The pressure sensor senses this pressure and it’s voltage output changes. The analog-digital converter of the Logger translates the voltage to the proper results accordingly. Note that when air travels through the tube in the opposite direction, the sensor will measure a negative value.

The DT037 ships fully calibrated. No further calibration is required.

The breath sensor is used to measure the volume of air in the lungs. It is used for both academic and professional applications. The following graph is a measurement of breath using the DT037 sensor.

Note that the DB-Lab software does not automatically recognize the DT037 and needs to be defined manually in the program. For further documentation on defining new sensors please refer to the DB-Lab section in your Data-Logger manual.