Sensors/Data Acquisition

Imaging Sensor Eliminates Extraneous Light

Anew imaging sensor created by a team at Carnegie Mellon University and the University of Toronto allows depth cameras to operate effectively in bright sunlight. The researchers, including Srinivasa Narasimhan, CMU associate professor of robotics, developed a mathematical model to help cameras capture 3D information and eliminate unneeded light or “noise” that often wash out the signals necessary to detect a scene’s contours.

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Authentication by Heart: Radar's New Role in Biometrics

The field of wireless vital sign monitoring has a relatively long history, almost as long as radar itself. Doppler radar has been the primary sensor technology for detecting blood flow or fetal heart rate. Over the past decade, there has been an increasing interest and need for creating wireless long-range vital sign monitoring systems. In addition, there has been a strong preference for using non-contact technologies for detection applications, especially for search-and-rescue operations that require the ability to see through debris, walls, and snow. There are also several emerging applications using short-range radar systems for automotive safety systems, remote health monitoring, and heart-based biometric authentication.

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Finding the Right Custom Magnetic Sensor For Your Application

Successful magnetic circuits are built upon proper planning and design principles. Experienced design engineers take a holistic approach to the design process by considering the full magnetic circuit. Open communication between the original equipment manufacturer (OEM) team and the customer helps the engineer anticipate the project’s unique parameters and tailor the design accordingly.

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Highway Sensor Deployment Gives Valuable Data to ‘Connected’ Drivers

In an effort to improve traffic flow, driver safety, and asset management, the Michigan Department of Transportation (DOT) has installed 17 sensors on a 50-mile stretch of one of the state’s busy Interstate highways. The “connected corridor” deployment will provide useful data for drivers of cars equipped with vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I) communication technology.

Posted in: Application Briefs, Sensors

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Green Pulsed Lasers

The new Revolution series of q-switched, green, pulsed lasers from Coherent, Inc. (Santa Clara, CA) provides average power up to 80W at a wavelength of 527 nm, with a beam profile featuring an extremely smooth energy distribution. They also deliver pulse rate flexibility; the repetition rate can be smoothly adjusted from single shot to 10 kHz, with an additional option that extends pulse repetition rates up to 40 kHz.

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Ice Sensors

New Avionics Corp (Ft. Lauderdale, FL) has announced its Ice*Meister™ Model 9732-PLASTIC Ice Detecting Sensor for Aircraft. The unit consists of a probe, housing, circuit board, and lightweight blue cable. The product, tested at NASA Glenn Research Center, complies with in-flight ice-detection standard SAE AS 5498.

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Automotive Sensors

STMicroelectronics (Geneva, Switzerland) has introduced two central airbag crash sensors. The AIS1120SX and AIS2120SX single- and dual-axis 120g in-plane MEMS accelerometers are designed to be mounted in the vehicle’s Airbag Control Unit (ACU) responsible for evaluating the sensor data and triggering the appropriate restraint system. Each sensor includes two independent sensing channels for redundancy and incorporates both slow and fast offset cancellation as well as precise temperature compensation. Both sensors have standard 400Hz signal bandwidth, which the user can extend to 1600Hz. The AIS1120SX and AIS2120SX sensors are specified over the extended temperature range from -40°C to +105°C. For Free Info Visit http://info.hotims.com/55595-141

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