System Description; Introduction; Structure And Measuring Principle - Roland R100 Series Manual

B0003306 / Rev. 1.0
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System description

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2.1

Introduction

When automatically feeding sheets from a stack to a processing machine, it can unintentionally
happen that more than one sheet is picked up and transported. This can result in damage to the
machine, tool damage, expensive repairs and production loss. The A100 double sheet detectors
can reliably prevent from such incidents by measuring the thickness of every sheet with a single
probe sensor.
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2.2

Structure and measuring principle

A system consists of the control unit, the sensor and the sensor cable.
For performing the measurement, the destacker or feeder must move the sheet to the sensor.
During the measurement the sensor is in contact with the sheet.
The permanent magnetic sensors electronically detect the change of magnetic flux caused by the
ferromagnetic sheet. This change will be processed by the control unit and sent to the machine
controls as switching signals.
The measuring principle is based on magnetic principles. The main influencing factors for the
measured value are the magnetic properties of sheets and environment. Air gaps between sensor
and sheet surface reduce the performance of the sensor.
In order to protect the material surface, it is possible to prevent the sheet from direct contact (e.g.
with plastic coating or the like). However, this will reduce the performance of the sensor and is thus
not recommended.
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ROLAND ELECTRONIC GmbH · Otto-Maurer-Str. 17 · DE 75210 Keltern · Phone +49 (0)7236-9392-0 · Fax +49 (0)7236-9392-33
Double Sheet Detector R100-Serie A100
for single sided sensors
Caution! The system is not suited for applications
of personal protection!
Manual
System description
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