Description

Product Overview

The Agilent 5517B is a helium-neon laser head used in laser interferometry and precision displacement-measurement systems. It is associated with the HP/Agilent laser measurement product family used for highly accurate position and dimensional measurements in semiconductor equipment, precision machine tools, coordinate measurement systems, and other metrology applications. The laser head provides a stable optical reference that allows a compatible interferometer system to determine displacement, velocity, and positional changes.

This type of equipment is not a general-purpose industrial sensor. Optical alignment, environmental conditions, wavelength compensation, and compatibility with the associated interferometer electronics directly affect measurement accuracy. Personally, I would verify the laser head configuration, optical interface, wavelength specification, operating hours, and system compatibility before purchasing a replacement 5517B, particularly for high-precision calibration equipment.

Technical Specifications — 5517B

Agilent 5517B

Key Features and Benefits — 5517B

• Provides a stable He-Ne optical reference for precision measurement.
• Designed for laser interferometry applications.
• Supports high-accuracy displacement and positional measurements.
• Suitable for machine-tool calibration and precision metrology.
• Can be integrated into established laser measurement architectures.
• Useful as an MRO spare for legacy Agilent/HP measurement systems.
• Optical alignment and environmental compensation can be managed as part of the complete measurement setup.

Related Models

Agilent 5517A: Earlier laser head in the same general laser interferometer family.

Agilent 5517C: Later laser-head variant used in precision laser measurement applications.

Agilent 5528A: Laser measurement system associated with precision machine calibration and displacement measurement.

HP/Agilent laser interferometer systems: Precision metrology platforms using laser heads, interferometers, optical components, and environmental compensation hardware.

Installation and Maintenance — 5517B

Before installation, inspect the laser head for optical contamination, mechanical damage, connector condition, and identification markings. Confirm compatibility with the existing interferometer electronics and optical configuration. The optical path should be clean and correctly aligned before measurement testing.

After installation, allow the laser system to stabilize according to the applicable equipment procedure. Verify laser operation, beam alignment, measurement signal quality, and environmental compensation. For calibration work, compare the system against the applicable reference standard before releasing it for precision measurement.

Product Warranty — 5517B

Warranty terms depend on the supplier and product condition. For new, surplus, refurbished, or repaired units, confirm warranty duration, operating-hour information where available, optical inspection, functional-test documentation, and return conditions. A laser-output and measurement-system test report is recommended for metrology applications.

The Agilent 5517B is best treated as a precision metrology spare rather than a conventional industrial sensor. Confirming optical, electrical, and interferometer-system compatibility is essential before replacement.