Presence detection

Sensors with a switched output, such as the mic+ family, can be used depending on the size of the box or container. The mic+25/D/TC, mic+35/D/TC or mic+130/D/TC suit small boxes; for larger containers use a mic+340/D/TC or mic+600/D/TC.

If several sensors scan one container, synchronise them with each other. The pms sensor in hygienic design is recommended for food, pharmaceutical and beverage.

Web edge control

The bks and bks+ web edge sensors sense the edge of web-form materials decoiled from a spool and guided through a processing machine, so the web run can be readjusted to stay on track.

Structured as a fork sensor working as a through-beam barrier: a transmitter in the lower prong emits continuous ultrasound, and a receiver in the upper prong evaluates its intensity. The degree of coverage is issued as a 4-20 mA analogue signal.

Double sheet control

Identifies two or more sheets of material on top of each other. The dbk+4 range is ideal where paper is in use, such as sheet fed printing presses, printers, copiers or collating machines. For thicker materials, plastic sheets and coarse corrugated cardboard, the dbk+5 is used.

Checking diameter

The diameter of a roll or coil of material can be detected by an ultrasonic sensor with analogue output, and the drive adjusted or brake applied accordingly.

Through-beam barrier

Ultrasonic through-beam barriers are highly suited for reliable presence control and counting of objects at high speed. The transmitter emits acoustic pulses on a cyclical basis which are captured by the receiver. If an object interrupts the pulses, the receiver's switching output is set.

Label detection

The esf-1 label sensor reliably detects high-transparency, reflective materials as well as metallised labels and labels of any colour. The measurement cycle time automatically self-adjusts to the sound power required.

Level control

Detection of filling levels from just a few millimetres up to 8 m. Sensors with one or two switched outputs for minimum/maximum control, or with 0-10 V and 4-20 mA analogue output. Chemical resistant versions include pico+TF (M22 housing), crm+ (M30 housing) and hps+ (process connection).

Level control in 6 bar overpressure

Possible with the hps+ sensors. They are also chemically resistant and available as a version with two PNP switching outputs, or with analogue and switching output.

Filling level in small containers

Even containers with a diameter of less than 5 mm can be measured with the zws ultrasonic sensor plus SoundPipe.

The pico+TF sensors are the smallest chemically-resistant ultrasonic sensors available from Microsonic, covering a measurement range of 20 mm to 1.3 m.

Height and width measurements

By using several mic+ (M30 housing), pico+ (M18 housing) or zws sensors (small cubic housing), three-dimensional scanning of any size box can be made. Sensors with different detection ranges are available.

Edge detection of flat objects

Very flat objects on a conveyor belt can often be detected indirectly. A sensor with switching output measures the edge of the object at an incline to the transport direction. The edge forms a triple reflector with the belt and reflects the sound waves back to the sensor.

Quality control on a packaging machine

A broad spectrum of sensors is available for detection during fast processes: zws in square-shaped housing, sks in miniature design, pico+ in the M18 threaded sleeve with optional angled head and IO-Link, pms in hygienic design, and the lpc+ family with two output stages and four scanning distances.

Splice detection

The esp-4 splice sensor reliably detects splices and also labels. It is available both in M18 housings and in M12 with external receiving transducer.

Wire break detection

During the winding and unwinding of wires. Depending on the size of the drum, a mic+130/D/TC with 1,300 mm operating range or a mic+35/D/TC with 350 mm range can be used. If the position of the wire on the drum should be recorded, sensors with analogue output are available.

Stacking height control

Whether wooden boards, panes of glass, sheets of paper or coloured plastic panels, ultrasonic sensors are ideal for detecting the height accuracy to millimetre precision.

Monitoring of trays

A sensor operating as a two-way or reflective barrier should always be preferred when the object absorbs the sound waves, or deflects them away due to its shape or position in the tray. An additional reflector is positioned behind the object, and a sensor in window mode emits a signal as soon as the object obscures it. The lpc+ in M18 threaded housing is ideal.

Ultrasonic barrier

It is easy to set up a two-way or reflective barrier using an ultrasonic sensor operating in window mode. A permanent reflector is positioned behind the objects to be scanned. When an object obscures the reflector, a switching signal is generated.

Vibration feeder

Ultrasonic sensors such as the pms in hygienic design continuously measure the level in the vibratory feeder. If the sensor detects a level that is too low, the feed rate is increased. If it detects a level that is too high, the control system reduces the product feed to ensure a consistent process.

Crate inspection

The mic+, pico+ and pms sensors were specially developed for applications such as checking whether crates are filled or empty, or scanning empty plastic bottles on a conveyor belt. Synchronisation, integrated in both sensor families, simplifies the design of a sensor line.