Quick answer
A Dual 6" PMR upgrade enhances measurement accuracy and flexibility for your 6" interferometer, but requires professional installation and a site-specific quote.
Why upgrade to a Dual 6" PMR?
A Phase Measuring Retarder (PMR) is essential for precise phase-shifting interferometry. Adding a dual unit to your 6" interferometer allows for more robust measurements, especially when dealing with larger or more complex optics. The dual configuration provides redundancy and can improve measurement stability by reducing systematic errors.
This upgrade is particularly beneficial for labs that require high repeatability and accuracy in their interferometric testing. It's a service upgrade that integrates directly with your existing 6" interferometer system.
Installation and labor considerations
The Dual 6" PMR upgrade is not a simple plug-and-play addition. It requires a Zygo Field Service Engineer to complete the installation and configuration. The minimum labor charge is 4 hours, which covers setup, alignment, and calibration. The total cost will vary depending on the mounting orientation of your interferometer, so a quote from the technical team is necessary before proceeding.
Be prepared for some downtime during installation. Plan accordingly to minimize disruption to your testing schedule.
Cost and value
The catalog price for the Dual 6" PMR upgrade is USD 4.69, with a comparison price of USD 6.60. However, this is only the base component cost. The total expense includes labor (minimum 4 hours) and any additional hardware required for your specific mounting orientation. The final quote from the technical team will give you the complete picture.
When evaluating the value, consider the improved measurement capability and potential reduction in measurement uncertainty. For labs that demand the highest accuracy, the investment is often justified.
Decision rules for the Dual 6" PMR upgrade
- Accuracy needs: If your testing demands high repeatability and minimal systematic error, the dual PMR configuration provides a measurable improvement over a single unit. Prioritize this upgrade if measurement uncertainty is your top concern.
- Budget and timeline: Factor in the base component cost, labor (minimum 4 hours), and potential downtime. Get a firm quote from the Zygo technical team before ordering. Do not proceed without a finalized quote that includes labor and mounting orientation specifics.
- Installation complexity: This is not a DIY upgrade. You must coordinate with a Zygo Field Service Engineer for installation and configuration. Plan for at least half a day of on-site work. Schedule the installation during a period of low testing demand to avoid disruption.
Product facts
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Add a Dual 6" PMR , for 6" Interferometer: The Dual 6" PMR upgrade price varies by mounting orientation and requires a quote from the Technical Team. You cannot rely on the base catalog price alone; a site-specific quote is essential for budgeting.
Add a Dual 6" PMR , for 6" Interferometer
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Add a Dual 6" PMR , for 6" Interferometer: Installation requires a Zygo Field Service Engineer and a minimum of 4 hours of labor. This upgrade involves professional installation, adding significant cost and scheduling considerations.
Who should consider this upgrade?
Best for
- Labs that perform high-precision interferometric measurements on 6" optics and require maximum accuracy
- Users who already have a 6" interferometer and want to upgrade its phase-shifting capability
Not for
- Labs with limited budgets who cannot accommodate the additional labor and potential downtime costs
- Users who only need basic interferometry and do not require the redundancy or accuracy gains of a dual PMR
