Sensors/Data Acquisition

Intelligent Displacement Sensor Deployment Using MTConnect Protocol over Ethernet

The protocol interfaces to an intelligent sensor and provides data gathering using a PC application.

Quality measurements for design validation and certification requirements sometimes call for hundreds or thousands of sensors and actuators. Maintaining such a complex system is difficult, especially over an extended time period and inevitable personnel changes. Many hours are spent tracking down sensor problems related to the sensor, associated cables, mounting hardware, or some part of the data acquisition system. These are expensive, labor-intensive hours that consume valuable technical resources.

Posted in: Briefs, Sensors, Measurements, Communication protocols, Sensors and actuators, Communication protocols, Sensors and actuators, Quality assurance, Quality assurance
Read More >>

New Products: March 2017 Sensor Techonology

Shape Sensor

OFS, (Norcross, GA) has developed a shape sensor fiber. The technology platform produces twisted multicore optical fiber with continuous FBGs (Fiber Bragg Gratings). The sensor meets 3D shape sensing specifications, such as twist rate, coating concentricity, grating reflectivity, and grating spacing. Continuous gratings are written without stripping and recoating the fiber.

Posted in: Products, Sensors
Read More >>

Complete Guide to Building a Measurement System

You can choose from many different sensors on the market today to measure all types of natural phenomena. This white paper categorizes and compares the most common sensors for measuring seven of these phenomena to help you choose the best option for your application.

Posted in: White Papers, Electronics & Computers, Data Acquisition, Sensors, Test & Measurement
Read More >>

Magnetic Motor-Feedback Kits – A New Way to Improve Performance and Reduce Costs

Today’s motor-feedback systems generally fall into one of two categories: high performance and very expensive or low cost, but lacking performance and features.

Posted in: On-Demand Webinars, Motors & Drives, Sensors
Read More >>

Why Your Leak Test Doesn’t Measure Up – and What Data Can Do About It

On the manufacturing line, the struggle to test for and address leaks that lead to faulty parts and warranty claims is nothing new — but rising expectations for product quality and reliability are putting leak tests to the test. How can quality engineers meet Industry 4.0 requirements for emission control, performance and reliability while coping with increased production volumes that demand shortened cycle times? Make the test better with data.

Posted in: White Papers, Manufacturing & Prototyping, Data Acquisition, Sensors, Test & Measurement
Read More >>

Eddy Current Probe for Surface and Sub-Surface Inspection

This technology can be used in aerospace, manufacturing, materials, and energy applications.

NASA's Langley Research Center has developed a novel probe for eddy current sensor applications that improves detection depth and measurement resolution. Although the use of anisotropic magnetoresistive (AMR) sensors in eddy current probes to improve sensitivity at low frequencies and increase the detection depth is known, the high-frequency sensitivity and small size of these sensors is less explored. This new probe incorporates two induction sources (i.e., one high-frequency and one low-frequency) and an AMR sensor; the result is improved resolution in near-surface material characterization, combined with simultaneous deep-flaw detection. Addition of a second high-frequency induction source, oriented to produce a magnetic field orthogonal to the first, allows for near-surface anomaly detection in two dimensions.

Posted in: Briefs, Sensors, Measuring Instruments, Test & Measurement, Computational fluid dynamics, Sensors and actuators, Sensors and actuators, Inspections
Read More >>

Damage Detection System for Flat Surfaces

This multidimensional system detects damage to surfaces and vessels.

NASA's Kennedy Space Center (KSC) seeks to license its Multidimensional Damage Detection System for Flat Surfaces technology. The ability to detect damage to composite surfaces can be crucial, especially when those surfaces are enclosing a sealed environment that sustains human life and/or critical equipment or materials. Minor damage caused by foreign objects can, over time, eventually compromise the structural shell resulting in loss of life and/or destruction of equipment or material. The capability to detect and precisely locate damage to protective surfaces enables technicians to prognosticate the expected lifetime of the composite system, as well as to initiate repairs when needed to prevent catastrophic failure or to extend the service life of the structure.

Posted in: Briefs, Composites, Materials, Sensors, Diagnostics, Maintenance, Repair and Service Operations, Maintenance, repair, and service operations, Prognostics, Composite materials, Protective structures
Read More >>

Wireless Sensing System Using Open-Circuit, Electrically Conductive Spiral-Trace Sensor

This low-profile inductance-capacitance sensor is suitable for small packaging.

NASA Langley Research Center researchers have developed a wireless, low-profile sensor that uses a magnetic field response measurement acquisition system to provide power to the sensor and to acquire physical property measurements from it. Unique to this sensor is the shape of the electrical trace that eliminates the need for separate inductance, capacitance, and connection circuitry. This feature gives the sensor a smaller circuit footprint to enable a smaller, flexible, and easy-to-fabricate sensor package. The shape of the electrical trace can be readily modified to sense different physical properties. Also, arranging multiple low-profile sensors together can permit the wireless data acquisition system to read the responses from all the sensors by powering just one of them.

Posted in: Briefs, Sensors, Semiconductor devices, Sensors and actuators, Wireless communication systems, Semiconductor devices, Sensors and actuators, Wireless communication systems, Product development
Read More >>

Variable Permeability Magnetometer Systems and Methods for Aerospace Applications

This technology exploits the varying permeability of a magnetic material with ambient magnetic fields.

NASA's Langley Research Center has developed a magnetometer that takes advantage of the unique variable permeability properties of Metglas 2714A magnetic material. By measuring directly the inductive reactance of a simple right circular cylindrical search coil through the application of current from a high-output-impedance current source driven with a 10-kHz sinusoidal voltage, a magnetic field sensor having a 700-Hz bandwidth, good linearity, and excellent noise performance with sensitivity at least as good as the 0.1 nTesla range was produced.

Posted in: Briefs, Sensors, Sensors and actuators, Sensors and actuators, Product development, Magnetic materials, Semiconductors
Read More >>

Farzin Amzajerdian, Principal Investigator, Langley Research Center, Hampton, VA

Since 2003, Farzin Amzajerdian has worked on the Navigation Doppler Lidar (NDL), a sensor designed to support safe and precise vehicle landings on Mars and other destinations. The breadbox-sized NDL contains three lasers, a small electronics box, and lenses connected by fiber-optic cables. Amzajerdian will soon oversee the testing of the technology in California's Mojave Desert.

Posted in: Who's Who, Sensors
Read More >>

The U.S. Government does not endorse any commercial product, process, or activity identified on this web site.