HANNOVER MESSE 2018, 23 - 27 April
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esf-1 ultrasonic label sensor


Exhibitor details
Logo esf-1 ultrasonic label sensor

Exhibition stand

Hall 9, Stand H34

Product description

The functional principle
Labels are guided through the fork. An ultrasonic transmitter in the lower tine of the fork beams a fast sequence of pulses through the backing material. The sound pulses cause the backing material to vibration, so that a greatly attenuated sound save is beamed from the opposite side. The receiver in the upper tine of the fork receives this sound wave.

The backing material transmits a different signal level from the label. This signal difference is evaluated by the esf-1. The signal difference between the backing material and the label can be very slight. To ensure a reliable distinction, the esf-1 must be trained to the label.

The esf-1 can reliably detect 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. For thin labels and backing materials, the esf-1 can work at its maximum speed, with a response time of < 300 microseconds.

To be able to detect special labels, for example labels with punches or perforations, there are three different teach-in methods available.

A) Learn both backing material and label dynamically

B) Separate teach-in for backing material and labels

C) Learn web material only

The teach-in procedure can optionally be carried out with the button on the top of the housing or with pin 5 on the unit's connector.

With LinkControl the esf-1 can optionally be parameterised. Measured values can also be shown graphically.

Product website

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