ZW Confocal Fiber Displacement Sensor

Ultra Compact Displacement Sensor Able to Perform Distance and Position Measurement on All Materials

Displacement Sensors are indispensable for non-contact measurements of heights, thicknesses and other dimensions in production. However, adapting them to the system has always caused problems. The ZW Confocal Fiber Displacement Sensor solves these problems in ways not possible with traditional laser displacement measurement sensors.

ZW series Sensors provide compact size, light weight against electrical/magnetic noise and other features that make them ideal for solving installation space problems.

And OMRON's new confocal principle provides the measurement resolution required for operational control.

The ZW Series solves problems that come with laser displacement measurement sensors, such as deviations between different materials and tilt tolerance. It provides higher resolution measurements of angled, curved and shiny surfaces than traditional laser displacement sensors.

Ultra high accuracy: +/- 0.8 μm

The slim design is only 24×24 mm. It weighs only 105 grams. This incredibly compact size could not be achieved with conventional laser displacement sensors. Any object can be measured with the sensor mounted perpendicular to them.

You can measure objects of any material or different colors in the same position. It enables high-resolution measurement even for objects with shiny surfaces without being affected by angular surfaces.

The sensor head design ensures reliable operation even in electronic and magnetic noisy environments. The compact sensor head, free of electronic components, eliminates installation space, mutual interference, electrical/magnetic interference and heating problems.

Benefits of Confocal Technique

No inconsistency at measuring point

With a traditional laser displacement sensor, the measured spot and spot size vary with height. This means that there are times when location cannot be measured with high resolution due to reflection and tilt. With the white light confocal displacement sensor, the measuring point remains the same at any position in the measuring range, so precise measurements can be made at any time.

Fiber Confocal Sensor is 8 Times Smaller than Traditional Measurement Systems

In this way, it is much easier to apply in narrow places and saves you from many difficulties in situations requiring side-by-side assembly.

Measurement in narrow spaces and walls

When a conventional laser displacement sensor measures the inside of a narrow tube or the height of a small depression, the wall often blocks the reflected light and the orientation of the sensor and the object must be adjusted many times. The white light confocal displacement sensor can measure points in narrow spaces or small objects without changing the installation direction, because the emitted light and reflected light are positioned along the same axis.

EMC precautions and thermal design are not required

The sensor head design ensures stable operation in installations with electronic or magnetic noise.
It is not affected by sound or heat from devices that are close to the measurement values.

Laser does not require safety precautions

White light source*1 eliminates the need for safety precautions around the machine and eliminates the safe use training for employees required for a laser light source. When a laser displacement sensor was used, a shield around the machine was required for safety and workers had to be trained for safe use.