TDA’s Low-Cost Infrasound Sensors
TDA’s low-cost infrasound sensor is specifically designed to be networked into large and dense arrays. TDA’s infrasound sensors are much lower cost than other sensors on the market ($100s per sensor instead of $1000s) and have custom software so that you can set up flexible arrays (from N=1 up to N=500) and collect all data wirelessly at a central computer with the clocks synced to within 1 ms and positions accurate to within 1 cm.
TDA’s sensors have successfully survived harsh conditions including five days in full sunlight during the New Mexico summer with daily highs >100oF, being buried under a foot of Colorado snow, and a wind / dust storm in New Mexico. We’ve successfully tested the sensors using the rotary subwoofer at Kirtland Air Force Base with arrays of N=100 and N=500, and TDA deployed an array of N=115 in Nevada as part of an effort led by Sandia National Laboratories to measure the infrasonic signature of the hypersonic reentry of NASA’s OSIRIS REx sample return capsule (SRC) in September 2023 (published in the Planetary Science Journal, https://arxiv.org/abs/2407.02420).
TDA’s Infrasound Sensor Features
Frequency range: 0.1 Hz – 100 Hz
Pressure Range: 0.1 Pa – 500 Pa
The battery life without solar charging is 8-9 days
A Built in solar panel provides enough power to run the sensor for 24 hours when exposed to 1.1 - 1.5 hour of sunlight. With regular sunlight, the sensors should work indefinitely
For inquiries about purchasing infrasound sensors or working with TDA on Infrasound research, please reach out to Dr. David Eisenberg, deisenberg@tda.com