Sensors/Data Acquisition

CERTIFICATES AND SIGNATURES: How to Ensure Authentication in the IoT

On October 21, 2016, the Internet saw a significant distributed denial of service (DDoS) attack, conducted via a botnet comprising many co-opted Internet-connected devices. The attackers of the network infrastructure were able to control these Internet-of-Things (IoT) devices for a number of reasons, including a lack of strong authentication. Loaded software turned the machines into puppets that interfered with Internet traffic for millions of users.

Posted in: Articles, Sensors, Cryptography, Cyber security, Internet of things
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A New Clinical Challenge: Making Sense of Heart Failure

Cardiologist Dr. John Boehmer spends many of his days assisting individuals who have heart disease, a condition affecting approximately 5.7 million US adults, according to the American Heart Association.

Posted in: Application Briefs, Sensors, Cardiovascular system, Diagnosis, Diseases
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Researchers Turn iPhone Camera into Optical Sensor

By integrating an optical Micro-Electro-Mechanical Systems, or MEMS, chip into an iPhone camera, researchers at the VTT Technical Research Centre of Finland have developed a new, cost-effective kind of hyperspectral technology. The spectral device will provide mobile device users and consumers with new ways to monitor their environments, including quick food analysis, health checks, and other Internet-connected sensing. Research team leader Anna Rissanen works actively with companies to enable commercialization and new business development based on the team's various sensors.

Posted in: Articles, Optics, Sensors, Microelectromechanical devices, Optics, Sensors and actuators, Research and development
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NASA Navigation Sensor May Land in Applications Beyond Mars

Although a NASA-built sensor being tested in the Mojave Desert this summer will be used to support the safe landing of rovers on Mars, one of the technology's lead researchers sees other commercial possibilities. Principal Investigator Farzin Amzajerdian and his team at NASA's Langley Research Center developed the Navigation Doppler Lidar, a bread-box-sized sensor system that could someday play a role in aircraft navigation and even driverless car applications.

Posted in: Application Briefs, Sensors, Lidar, Spacecraft guidance, Autonomous vehicles, Entry, descent, and landing, Unmanned aerial vehicles
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SOLVING THE INTERCONNECT CHALLENGE: How to Bring Flexibility to Wearable Design

Micro-Electro-Mechanical Systems (MEMS) are more prevalent than ever, especially in the popular configurations known today as “wearables.” Leading MEMS and sensors in the multitude of wearable technologies include accelerometers, gyros, magnetometers, microphones, UV sensors, glucose monitors, barometers, humidity detectors, and heart rate instruments.

Posted in: Articles, Sensors, Architecture, Microelectromechanical devices, Sensors and actuators, Wireless communication systems
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Piezoelectric Field Disturbance Sensing System and Method

This technology provides a lightweight, cost-effective solution for structural measurements.

The invention developed is a piezoelectric stimulus-response quantification-based gravimeter (PEG). The PEG takes a completely innovative approach towards utilization of the piezoelectric element — quantifying the gravitational effects on them. In this way, the piezoelectric element can: (1) generate an electric charge in response to mechanical deformation, and (2) be mechanically deformed by applying electric charges. This is known as the converse-piezoelectric effect. Piezoelectric elements can be used to precisely inject energy for exciting vibratory frequencies within the element and housing, enabling the element to be used for quantifying subsequently produced electrical output. The gravimeter is capable of measuring numerous other types of physical quantities, such as thermal, magnetic, electrical, electromotive, electromagnetic, and electro-static fields, and providing static and structural information.

Posted in: Briefs, Sensors, Measurements, Electrical systems, Vibration, Test equipment and instrumentation
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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, Quality assurance
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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
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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
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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
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