NASA’s Radio Frequency Bolt Monitor: A Lifetime of Spinoffs

About this technology

Overview

An ultrasonic bolt elongation monitor developed by a NASA scientist in the 1970s for testing tension and high pressure loads on bolts and fasteners has continued to evolve over the past three decades. Today, the same scientist and Luna Innovations, Inc., are using a digital adaptation of this same device for a plethora of different application, including non destructive evaluation of railroad ties, groundwater analysis, radiation dosimetry, and as a medical testing device to assess levels of internal swelling and pressure for patients suffering from intercranial pressure and compartment syndrome, a painful condition that results when pressure within muscles builds to dangerous levels.. The applications for this device continue to expand.