The Keysight 55280A Linear Measurement Kit is an optical metrology system for high-accuracy linear displacement and velocity measurements. Designed as an integral component of the Keysight 5530 Laser Calibration System, it delivers the optical components required for precision calibration of machine tools, CMMs, and length standards. The kit measures changes in distance between an interferometer and retroreflector with nanometer-level resolution, establishing defined measurement baselines before motion occurs.
Technical Specifications
Measurement Parameters:
• Linear displacement and velocity measurement
• Standard range: up to 40 m (130 ft)
• Extended range: up to 80 m (260 ft) with Long Range Option
Resolution:
• 1 nm (0.04 µin) with Keysight 10766A Linear Interferometer
• 0.5 nm (0.02 µin) with Plane Mirror Optics (10706A/B)
• 0.25 nm (0.01 µin) with High Resolution Plane Mirror Optics (10716A)
Measurement Accuracy (0 °C to 40 °C):
• ±0.4 ppm with E1738A Air Sensor
• ±0.1 ppm in vacuum
• ±0.02 ppm in vacuum with 5519A/B laser head calibrated to MIL-STD 45662A
– Key Features
• Keysight 10766A Linear Interferometer with dual 10767A Linear Retroreflectors
• Mounting hardware: two 10784A Bases and three 10785A Height Adjusters and Posts
• Transit case for optical component protection (55280A only)
• Long-term thermal drift assessment capability across hours or days
– Typical Applications
• Positioning accuracy calibration for CNC machine tools and CMMs
• Length standard calibration via high-resolution optical interferometry
• Thermal drift characterization and dimensional stability analysis
• Axis compensation table generation for improved positioning accuracy
– Compatibility & Integration
Operates as a subsystem within the Keysight 5530 Laser Calibration System. The 55280B variant excludes the transit case.
