Ultrasonic sensors are perfectly suited for detection of objects
with very different surfaces and under bad environmental
conditions (dust, dirt, fog, bright light). A disadvantage is
their relatively low measuring speed, caused by the slow speed
of sound compared e.g. to the speed of light. Moreover the so
called blind range of ultrasonic scanner type sensors
(transmitter and receiver in the same sensor) might be sometimes
a disadvantage, too.
Those disadvantages are eliminated with the ultrasonic
through beam sensors
UPB. In the same way as with a light barrier, the full range
between transmitter and receiver can be used. There is no blind
range. The measuring speed of 200Hz is very high as well. The
microprocessor controlled UPB series combines high acoustic
power with small size. This is achieved with new optimized
transducers working at high electrical voltages.
The high measuring speed combined with the large measuring range
2500mm are the outstanding characteristics of the UPB
through beam sensors.