Sensors/Data Acquisition

Multi-Purpose Non-Contact Position/Displacement Sensing

Features Supports both dual and single coil sensors Terminal I/O connections Auto-synchronization of multiple channels Analog DC and 4-20mA outputs Single ended, bipolar, and differential voltage outputs Front face coarse and fine calibration controls RoHS compliant and CE marked

Posted in: White Papers, White Papers, Sensors

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Noncontact Differential Impedance Transducer

Features True differential for common mode rejection at an economical price High precision eddy current balanced bridge technology Capable of subnanometer resolution Thermal stability ±.03% FS/°C, at null ±.005% FS/°C Small package size: just 7.7 cubic inches High sensitivity: up to 10V/mil (39mV/μm) Extremely linear, to 0.1% full range Single and dual channel configurations  

Posted in: White Papers, White Papers, Sensors

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How New Angular Positioning Sensor Technology Opens A Broad Range of New Applications

A new generation of touchless position sensors solves a number of new problems while simplifying existing on-line control applications by providing design engineers with an opportunity to reduce implementation and maintenance costs. This technology can solve problems from measuring through materials to existing shaft alignment issues.

Posted in: Sensors, White Papers, White Papers, Sensors

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Products of Tomorrow: January 2015

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft safety, increased accuracy in weather forecasting, and the miniature cameras in our cellphones are just some of the examples of NASA-developed technology used in products today.

Posted in: Articles, Products, Techs for License, Sensors

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Magnetic Thermometer for High-Resolution 10-mK Scale Thermometry

Device features improved sensitivity. Goddard Space Flight Center, Greenbelt, Maryland A thin-film magnetic thermometer with integrated, superconducting quantum interference device (SQUID) readout has been designed for fast, precision temperature measurements in the 10-mK range. The compact magnetic thermometer consists of a miniature DC SQUID susceptometer with a dilute paramagnetic alloy deposited in one of the two series-configured, gradiometric SQUID pickup loops that form the SQUID inductance. Directly sensing the magnetic signal with the SQUID eliminates coupling losses that occur by transformer-coupling the signal to a remotely located SQUID, usually operating at a higher temperature, and consequently, with a higher noise floor.

Posted in: Articles, Briefs, TSP, Sensors

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High-Temperature Ultrasonic Probe for In-Service Health Monitoring of Steam Pipes

The probe monitors the height of water condensation in steam pipes through the wall of the pipe. NASA’s Jet Propulsion Laboratory, Pasadena, California This ultrasonic, pulse-echo probe can sustain as high as 250 °C, and uses a piezoelectric transducer to generate and receive the ultrasonic pulses. The transducer is made of a piezoelectric material with high Curie temperature, and the probe is configured such that it is operated as air-backed and, thus, has minimum losses of power.

Posted in: Articles, Briefs, TSP, Sensors

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Low-Weight, Durable, Low-Cost Metal Rubber Sensor System for Ultra-Long-Duration Scientific Balloons

Sensors integrated onto load-bearing seams measure axial loads in the most extreme environmental conditions. Goddard Space Flight Center, Greenbelt, Maryland Large axial load forces and extreme temperature ranges are typical for scientific balloon missions. Therefore, a durable, flexible, and thermally stable sensor material is needed. In this innovation, sensors have been designed to be integrated onto the load-bearing seams and/or outer balloon mesh polyethylene surface of the pressurized balloon system to measure accurately and continually axial loads under extreme environmental conditions for extended intervals (i.e. more than 100 days).

Posted in: Articles, Briefs, TSP, Coatings & Adhesives, Metals, Sensors

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