QPSI Technology Shrugs Off Vibration from Common Sources
When image stabilisation became available on digital cameras, it vastly reduced the number of photos ruined by camera shake. The new technology eliminated the effects of common hand tremors, greatly improving image quality in many photo situations.
In precision interferometric metrology a similar problem, environmental vibration, has ruined countless measurements, like the one shown at right. Vibration can significantly affect measurement results and spatial frequency analysis, and it is difficult to make high quality optics if you cannot measure them reliably. Even with perfectly nulled fringes the effect of vibration is there but unseen. Solving the vibration problem can be costly, requiring the purchase of a vibration isolation system or a special dynamic interferometer.
[caption id="attachment_1381" align="alignleft" width="206"]
Vibration-induced "ripple effect" obscures the measurement data[/caption]
[caption id="attachment_1382" align="alignleft" width="207"]
Same measurement data, acquired with Zygo's new QPSI technology[/caption]
Zygo's QPSI™ technology is truly a breakthrough for many optical facilities because it eliminates problems due to common sources of vibration, providing reliable measurement data the first time you hit the measure button. QPSI measurements require no special setup or calibration, and cycle times are typically within a second or two of standard PSI measurements.
Key Features:
• Eliminates ripple and fringe print-through due to vibration
• High-precision measurement; same as phase-shifting interferometry (PSI)
• Requires no calibration, and no changes to your setup
• Easily enabled/disabled with a mouse click
QPSI is available exclusively from Zygo® on the Verifire™ QPZ, the Mini™ and Mini XP™, and the DynaFiz™ interferometer systems. These systems are easy-to-use, on-axis, common-path Fizeau interferometers – the industry standard for reliable metrology – making them the logical choice for most surface form measurements.
QPSI Simplifies Production Metrology
A Zygo interferometer with QPSI technology is capable of producing reliable high-precision measurements in the presence of environmental vibration from common sources such as motors, pumps, blowers, and personnel. It is particularly useful for measuring longer radius of curvature parts. Unless your facility is free of these sources, your business will likely benefit from QPSI technology.
While QPSI can completely solve many common vibration issues, environments that have extreme vibration and/or air turbulence may require the additional capability of DynaPhase™ dynamic acquisition, which is included with Zygo's DynaFiz™ interferometer. We can help determine the best solution for your particular situation. Please contact us at Lambda for expert advice and a demonstration.
Get the Details in a Free Technical Paper
You can read all the details about QPSI technology in a free technical paper, bundled with an Applications Brief, which we can send to you. Just send a request and we will email you the PDF documents.
Vibration-induced "ripple effect" obscures the measurement data[/caption]
[caption id="attachment_1382" align="alignleft" width="207"] Same measurement data, acquired with Zygo's new QPSI technology[/caption]
Zygo's QPSI™ technology is truly a breakthrough for many optical facilities because it eliminates problems due to common sources of vibration, providing reliable measurement data the first time you hit the measure button. QPSI measurements require no special setup or calibration, and cycle times are typically within a second or two of standard PSI measurements.
Key Features:
• Eliminates ripple and fringe print-through due to vibration
• High-precision measurement; same as phase-shifting interferometry (PSI)
• Requires no calibration, and no changes to your setup
• Easily enabled/disabled with a mouse click
QPSI is available exclusively from Zygo® on the Verifire™ QPZ, the Mini™ and Mini XP™, and the DynaFiz™ interferometer systems. These systems are easy-to-use, on-axis, common-path Fizeau interferometers – the industry standard for reliable metrology – making them the logical choice for most surface form measurements.
QPSI Simplifies Production Metrology
A Zygo interferometer with QPSI technology is capable of producing reliable high-precision measurements in the presence of environmental vibration from common sources such as motors, pumps, blowers, and personnel. It is particularly useful for measuring longer radius of curvature parts. Unless your facility is free of these sources, your business will likely benefit from QPSI technology.
While QPSI can completely solve many common vibration issues, environments that have extreme vibration and/or air turbulence may require the additional capability of DynaPhase™ dynamic acquisition, which is included with Zygo's DynaFiz™ interferometer. We can help determine the best solution for your particular situation. Please contact us at Lambda for expert advice and a demonstration.
Get the Details in a Free Technical Paper
You can read all the details about QPSI technology in a free technical paper, bundled with an Applications Brief, which we can send to you. Just send a request and we will email you the PDF documents.