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OptraVac | Optical Sensing Technology – Coming 2020

OptraVac Vacuum Gauge by DigiVac

Vacuum Measurement Revolutionized | Direct Measurement | Down to 1×10-7 Torr

Based On Optical Sensing Technology | Only Direct Measurement Gauge for 1×10-5 to 1×10-7

  • +/-1% accuracy for high vacuum range—greater accuracy in this high vacuum range (1X10-3 to 1X10-7) allows for experiments and processes that can be better characterized and repeated
  • Direct Vacuum Measurement—unlike cold and hot cathode gauges that are calibrated in nitrogen, OptraVac optical technology measures vacuum directly, eliminating the issue of compromised accuracy brought on by processes that include a mixture of gases
  • Only Isolated & Passive Sensor Technology—zero electronics or magnetized parts within sensor
  • Optical Sensing Technology—originally designed for underwater acoustic microphones that not only required sensitivity, but signal conditioning to detect specific vessels through 500 miles of water
  • Calibrated—Every OptraVac is calibrated and pretested under actual vacuum against a NIST standard
  • Applications—materials research, industrial coating, electron microscopy, and industrial processes, linear accelerators

With roots in the Navy Research Labs, OptraVac repurposes underwater acoustic microphone technology for applications in the vacuum industry

OptraVac Advantages Over Alternatives:

  • Sensor does not degrade—filaments are not exposed
  • Only direct measurement for 1×10-5 to 1×10-7 Torr
  • Longer calibration intervals than ion gauges
  • Wider dynamic range than capacitance manometer
OptraVac Vacuum Gauge for measuring 1X10-3 to 1X10-7 Torr

OptraVac | Direct Vacuum Measurement Utilizing Optical Sensing Technology

Coming soon-preorder

OptraVac Pricing
Single Channel Raw $2,000/unit
Single Channel Refined Signal $3,000/unit
Dual Channel Raw $4,000/unit
Dual Channel Refined Signal $5,000/unit


OptraVac is available for U.S. sale.  System builders, manufacturers and resellers are encouraged to contact us.

Availability: Pre-Orders will be taken now for first units shipping in November-December 2015.  Production units will be shipping  in early 2016.  Please contact us to place an order.


OptraVac Specifications


OptraVac Frequently Asked Questions

OptraVac Introduction

OptraVac-Data Sheet

OptraVac PEC conference poster

Lightweight Fiber Microphones and Accelerometers 2001 Lagakos Article