Ultrasonic proximity sensor
Ultrasonic proximity sensor with analog output stage
Ultrasonic retro-reflective sensor
Ultrasonic through beam sensor

Ultrasonic proximity sensor

Ultrasonic sensors enable the detection of different objects - irrespective of color and transparency. They are therefore ideal for monitoring transparent objects.

Typical applications:

	detection of glass, plastics, foils etc.
	level control

Ultrasonic proximity sensor with analog output stage

Both current and voltage outputs from the sensor are proportional to the distance of the sensor from the target. This allows simple non-contact measurement.

Typical applications:

	loop control or sag control
	distance measurement
	detection of stacking levels

Ultrasonic retro-reflective sensor

A fixed machine part is used here as a reflector. The time difference between the emission and the reception of an ultrasonic signal (known as propagation time) is therefore fixed and known. When an object comes within this sensing distance the output is activated.

Typical applications:

Detection of different and sound-absorbent objects

Ultrasonic through beam sensor

These sensors are ideal for applications in which objects follow each other in quick succession. They are also recommended when high switching frequencies are required, up to 200 Hz.

Typical applications:

	counting of materials which are optically difficult to detect i.e. glass or clear plastic (PET-bottles)
	monitoring of transparent materials