Functional Principle, Technical Data; Description; Functional Principle - MICRO-EPSILON optoCONTROL 2700 Operating Instructions Manual

2

Functional Principle, Technical Data

2.1

Description

The optoCONTROL 2700 is a high-resolution, two-sided telecentric micrometer for measuring dimensional quantities –
such as diameters, gaps, positions, and segments – using a shadow-casting or light section process.
The sensor consists of a light source and a receiver, which are electrically connected via an eight-pin cable. A mounting
rail forms the mechanical connection between the light source and receiver.
The sensor offers a high measuring rate with accuracies in the micrometer range. This enables precise measurements to
be achieved even in the context of fast processes.
When using the sensor to determine a diameter, tilted targets in the xy direction will lead to distorted measurement re­
sults. The active tilt correction feature corrects this error during operation at the full measuring rate.
All evaluation takes places inside the receiver.
Lichtquelle Light source Montageschiene Mounting rail
Fig. 2.1: The optoCONTROL 2700 Sensor
2.2

Functional Principle

The sensor relies on the shadow-casting principle and contactlessly measures the dimensions of a target or the position
of an object's edge.
The light source uses a high-quality telecentric optical system to produce a collimated light beam. The light source is
aligned with the receiver, where the transmitted light hits an image matrix after passing through a telecentric lens. If a
target is located between the light source and the receiver, part of the light is obstructed and does not hit the image ma­
trix.
Dark patches or shadows are detected on the image matrix. In this way, it is possible to detect edge positions and to
evaluate dimensional quantities obtained from the shadow – such as diameters, gaps, and positions – as well as multiple
segments.
Neither the light source nor the receiver contain any moving parts, making the sensor virtually wear-free.
Light source
Collimated light beam
Fig. 2.2: optoCONTROL 2700 Measuring Principle
The search direction defines the starting point for an edge definition and, in turn, the numbering/order.
Standard: Search begins at SMR (start of measuring range)
●
Inverse: Search begins at EMR (end of measuring range)
●
optoCONTROL 2700
Messobjekt Target Receiver Empfänger
Target
Receiver
EMR
SMR
Image matrix
Functional Principle, Technical Data
Seite 9