Ultrasonic level sensor t023b TNU08-IVS

snowsnow depthanalog

The TNU sensor measures snow levels up to 8 meters by emitting short pulses of ultrasonic frequency towards the surface of the snow cover and detecting the returning echoes. The TNU guarantees excellent performance from the point of view of accuracy thanks to a measurement self-correction system which, through an integrated temperature sensor, takes into account the variation in the speed of sound as a function of the air density. The on-board electronics calculate the distance based on the time intervals between emission and reception of the reflected pulses. In particular, the TNU is equipped with an electronic amplification and capture system specific for applications on snowpack. Snow, in fact, has a high sound-absorbing property (it reflects the impulse not only from the external surface, but also from the layers beneath the surface). The protective external body contains the transducer, and is partly made up of a self-ventilating solar shield in order to allow the correct measurement of the air temperature as well as to protect the sensitive component from direct exposure to atmospheric agents. The sensor is supplied complete with power and signal cable (12m).