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New! Introducing the Model 60 Tactical Infrasound Sensor

Chaparral Physics Model 60 Infrasound Sensor

The Chaparral Physics Model 60 Infrasound Sensor is the smallest and lightest fully-engineered infrasound sensor available. A four-sensor array and compact data logger fit easily in a daypack.

  • 7 oz
  • Very low power consumption:<150 mW
  • 12.5 octave bandwidth, including low audio spectrum (0.03 Hz to 240 Hz)
  • Differential output
  • Low noise floor
  • High dynamic range
  • Low seismic sensitivity
  • Robust physical build quality with sealed electronics

Click here for Model 60 details and specifications

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Chaparral Physics Model 50A Infrasound Sensor

The Model 50A is the leading sensor for precision infrasound research today; it has broadband response and very low sensor self-noise. The Model 50A delivers reliable, high-quality, consistent data, even in remote and rugged environments.

  • Certified by IMS
  • Observatory-grade, quick field deployment
  • Low power consumption: <480 mW
  • 0.01 Hz to 50 Hz bandwidth
  • 4-port manifold for wind-noise reduction array
  • Self-diagnostics
  • Switchable high and low gains
  • Differential output
  • Very low noise floor
  • High dynamic range
  • Low seismic sensitivity
  • IP 67 rating, Acetal exterior
  • Replaces and upgrades the MB2000 and MB2005

Model 50A specifications

Model 50A manual

 

Chaparral Physics Model 25/21 Infrasound microphone

Models 25/21 are cost-effective and durable sensors for the mid-infrasound to low-audio bandwidth. These sensors excel in campaign-style deployments.

  • Preferred by military and volcano researchers
  • Low power consumption: <480 mW
  • 0.1 Hz to 200 Hz bandwidth
  • 4-port manifold for wind-noise reduction array (Model 25)
  • Self-diagnostics
  • Switchable high and low gains
  • Differential output
  • Low noise floor
  • High dynamic range
  • Low seismic sensitivity
  • Very rugged: can be deployed in open

Model 25 specifications 

Model 25 manual

 

Models 20/24: Lower-cost versions of the Model 25/21 without switchable gains or self-diagnostics.

Model 24 specifications

Model 24 manual

 

Contact us about custom modifications – we can optimize our sensors for your research and program needs. email: chaparral@gi.alaska.edu

Chaparral Physics has manufactured infrasound sensors since the 1950s, and was acquired by the University of Alaska Fairbanks Geophysical Institute in 2004. Our sensors are robust, and we have a lengthy track record of producing quality sensors. Our new models are low noise, low power, not sensitive to seismic waves or elevation changes, and very rugged – they are used in some of the harshest environments on Earth – from the flanks of volcanoes in Alaska to the ice fields of Antarctica. In addition, our Model 50s meet the Nuclear Test Ban Treaty specifications.

Chaparral Infrasound Sensor Family

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Additional information or ordering, please contact us:Chaparral Physics emblem

email: chaparral@gi.alaska.edu
phone: (907)474-7107
or write: Chaparral Physics
             P.O. Box 757320
             Fairbanks, AK 99775-7320