- The 157 Optical Thickness Gauge uses Bristol’s proven optical interferometer-based technology to measure the thickness of a variety of materials. Absolute thickness is measured to an accuracy of ± 0.1 μm and with a repeatability of ± 0.02 μm. This performance is guaranteed over long periods of time by continuously referencing every measurement to a built-in intrinsic invariant standard of length. This ensures the most meaningful test results.
- Absolute thickness measured to an accuracy of ± 0.1 μm
- Exceptional long-term measurement repeatability of ± 0.05 μm
- Unmatched stability virtually eliminates thermal drift endemic to competitive systems
- Measurement traceability to NIST standards
- Broad measurement range of 14 μm to 16 mm
- Simultaneous measurement of multiple layers
- Non-contact measurement results in non-destructive testing
- Convenient instrument interface for automatic reporting and control
- Rugged design for laboratory and manufacturing environments