Laser sensors for metals and rough surfaces

optoNCDT LL

Sensors with small laser line (LL) for rough and reflecting surfaces

optoNCDT LL

Sensors with small laser line (LL) for rough and reflecting surfaces

When measuring on shiny metals or machined surfaces that have small micro-machining marks on their surface, using a small laser spot is not recommended. This is because the micro-machined surface features suppress homogenous reflections, resulting in a noisy or unstable measurement signal.

Laser sensors with an oval-shaped laser spot of just a few mm in width, similar to a short ‘laser line’, are recommended for these tasks. Interference caused by surface roughness, defects, indentations or holes are filtered out using the oval-shaped light spot combined with special software algorithms. Furthermore, this type of sensor is suitable for distance measurements on structured surfaces i.e. when the distance to the surface and not the structure itself needs to be measured. The oval-shaped light spot is not affected by the surface structures, enabling continuous, stable measurement values to be generated.

Mid Performance laser sensor for shiny and rough surfaces – optoNCDT 1750LL

The optoNCDT 1750 LL is a special laser sensor for shiny metals and structured surfaces. The oval laser spot facilitates a particularly easy and precise measurement on shiny metal surfaces or structured objects.

Features

Measuring ranges (mm):
2 | 10 | 20 | 50
Linearity max. 2µm
Resolution max. 0.1µm
Adjustable measuring rate up to 2.5kHz
Analogue and digital output
Precise measurements on metal surfaces
Special lens for oval-shaped laser point
Distance measurement on structured surfaces
Real-time compensation on changing surfaces (RTSC)
Integrated controller

Downloads

Data sheet optoNCDT 1750LL Assembly instructions optoNCDT 1700, 1700LL, 1700BL (PDF, 773 KB) Instruction manual optoNCDT 1700 (PDF, 3.14 MB) Instruction manual RS422 Extension terminal, EtherCAT (PDF, 2.97 MB) ILD1700 Tool V3.5.7 (ZIP, 10.88 MB) MEDAQLib V4.6.0 Build 28719 (ZIP, 16.07 MB) SensorFinder V2.9.3 (ZIP, 9.3 MB) CAD file 3D-model sensor "ILD1700", STEP (ZIP, 1.98 MB) CAD 3D Modell: Protection housing optoNCDT 17x0 /23x0 - Size S, STEP (ZIP, 496 KB)

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Highest performance Laser Sensor for shiny and rough surfaces – optoNCDT 2300LL

Laser sensors from the optoNCDT 2300LL series have been developed with an innovative lens arrangement which produces and elongated elliptical spot (or small laser line). Although not visible to the naked eye, this change in the spot geometry allows a natural surface averaging. Combined with an advanced surface compensation algorithm, this combination dramatically reduces measurement signal noise levels, especially on shiny, glossy, porous or rough surfaces.

Compared to a conventional standard laser spot, this measuring stability is dramatically improved, even when measuring at the extreme high rate of 49kHz!

Additionally, the optoNCDT 2300LL has the new Ethernet interface which is used for remote configuration, diagnostics (through the devices own IP address) and output measurements. Conventional serial RS422 and analogue outputs are also offered if preferred.

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Features

Measuring ranges (mm):
2 | 10 | 20 | 50
Linearity max 0.6µm
Resolution max. 0.03µm
Adjustable measuring rate up to 49.140 kHz
Interfaces: Ethernet, EtherCAT, RS422, analogue via CSP2008 controller
Special optics for small laser line
Precise measurements on metallic and rough surfaces
Advanced Real-Time-Surface-Compensation (A-RTSC)
Integriated controller

Downloads

Data sheet optoNCDT 2300LL MEDAQLib V4.6.0 Build 28719 (ZIP, 16.07 MB) SensorFinder V2.9.3 (ZIP, 9.3 MB) CAD 3D Modell: Protection housing optoNCDT 17x0 /23x0 - Size S, STEP (ZIP, 496 KB)

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