100nm High-Temperature Confocal Displacement Sensor with 38mm Reference

Product Overview

POMEAS SFS-D4038H is a high-temperature long-working-distance spectral confocal displacement sensor operating from -10°C to 150°C, with a 38 mm reference distance, ±2 mm measuring range, 100 nm repeatability and <±0.4 μm linearity error. The 38 mm reference distance provides ample mounting and travel clearance; the non-contact optical method suits high-temperature, highly reflective and transparent surfaces.

Key Features

• High-temperature version: operating temperature -10°C to 150°C
• 100 nm repeatability, linearity error <±0.4 μm
• ±2 mm measuring range, 4 mm total travel
• 38 mm long reference distance for ample clearance
• ±21° measuring angle
• Φ16/32/256 μm three-mode spot
• Minimum measurable thickness 5% F.S., IP40

Technical Specifications

Applications

Ideal for long-distance displacement and height measurement in high-temperature environments, hot part inspection, transparent material thickness measurement and curved-surface step inspection.

FAQ

What is the reference distance of the SFS-D4038H?

The reference distance is 38 mm with a ±2 mm measuring range (4 mm total travel), giving ample clearance for fixturing and surface variation.

Is it a high-temperature version?

Yes. The SFS-D4038H is the high-temperature version (suffix H) with an operating range of -10°C to 150°C.

What is the repeatability?

Repeatability is 100 nm with a linearity error of <±0.4 μm (verified with a nanometer-grade laser interferometer).

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