MEMS Sensor for Safety-Critical Automotive Applications

Murata Electronics (Smyrna, GA) announced a new Micro-Electro-Mechanical Systems (MEMS) Six Degrees of Freedom (6D0F) inertial sensor that delivers high performance for safety-critical automotive applications. The SCHA600 combines an XYZ-axis gyroscope and XYZ-axis accelerometer with digital SPI Interface to provide bias stability and noise performance for safety-critical automotive applications. Further, the orthogonality of the measurement axes is calibrated at the manufacturing level so system integrators can skip this costly, yet critical, step. This new sensor allows for higher levels of Advanced Driver-Assistance Systems (ADAS) and Automated Driving (AD) functionality through data fusion with Global Navigation Satellite Systems (GNSS) and various perception sensors such as camera, radar, and lidar.

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Absolute Pressure Sensor

TTI Americas (Fort Worth, TX) is now offering Amphenol Advanced Sensors NPB-101 Digital Output Absolute Pressure Sensor. The NPB-101 provides low power consumption and compact size, making it ideal for battery-powered and mobile applications. It employs a MEMS pressure sensor with a signal-conditioning IC to provide accurate pressure measurement from 260 mbar to 1260 mbar. This sensor is temperature compensated and calibrated while also providing a temperature output via an internal sensor.

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Automotive-Grade 3D Hall Effect Sensor

Melexis (Tessenderloo, Belgium) has announced the MLX90395 Triaxis® Magnetometer Node, an automotive-grade (AEC-Q100) monolithic sensor that uses the Hall effect to provide contactless sensing in three dimensions. The dual-die version of the MLX90395 provides redundancy for demanding scenarios, such as gear lever position sensing in automotive applications. Its functionality is defined through the system processor, rather than hardwired into the device itself. Along with magnetic field sensors to measure three fields (Bx, By, Bz), it also integrates a temperature sensor and supply voltage monitor. The sensor operates in one of three modes: single measurement, burst mode, or wake-up on change mode.

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Thermal Imaging Camera for Body Temperature Monitoring

The TIM QVGA-HD-T100 compact thermal imager for body temperature screening from Micro-Epsilon (Raleigh, NC) is designed for temperature measurement of a group of people and for targeted temperature measurement of an individual person. The software automatically recognizes and displays people with increased body temperature, which can indicate a febrile illness. The thermal imager is, among other things, intended for visitor and staff entrances, security gates, public institutions, train stations, and airports. Three camera lenses are available for temperature screening.

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Flow Transmitters Interface With PD and Turbine Flow Meters to a Smart Phone

AW-Lake (Oak-Creek, WI) introduces the EDGE family of flow electronics that interface with positive displacement or turbine flow meters. When installed on a flow meter, the EDGE electronics can force the sensor to output a frequency or analog signal output for greater flexibility when interfacing with readout equipment or control rooms. Modbus output also adds system compatibility for more advanced operations. A Bluetooth mobile application supports signal processing, allowing users to monitor and program flow meters from a smartphone that serves as a hand-held display. With basic scaling and advanced functions, the application allows for remote correction of nonlinear flow meters to provide a linear analog output.

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Long-Range Ultrasonic Air Transducer

AIRMAR® Technology Corporation (Milford, NH) is introducing their ultrasonic ART15 Airducer, an air transducer for long-range level measurement of both solids and liquids. With a 60-meter (197-foot) range, it delivers long distance level measurement performance without the high cost of radar technology. Ideal applications for the ART15 include silos, large wells, wastewater facilities, large capacity tanks, and river crossings/bridges. It requires minimum maintenance, is not affected by color or object transparency, and can be utilized in dark environments. It also comes equipped with a built-in thermistor that provides ambient temperature.

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Combined Displacement and Inclination Sensor

ASM Sensor's (Elmhurst, IL) Posiwire ® cable extension sensor WST85, combines displacement and inclination measurement. Displacement is measured using cable extension sensor technology with contactless, magnetic multi-Hall encoder technology. Inclination is measured by an integrated inclination sensor element based on MEMS technology. The sensor is suited for applications in harsh environments such as in mobile machines. It measures linear position up to 6000 mm and inclination between +/-180° in one axis. Available digital outputs are CANopen and CANopen redundant. The sensor reaches a linearity of up to +/- 0.05 % of the measurement range for linear position and of up to 0.05° for inclination position.

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IIoT Radar Level Sensor

The Micropilot FWR30 from Endress+Hauser (Greenwood, IN) is their first cloud-connected radar to provide full transparency in the storage and transport of liquid. An 80 GHz wireless IIoT sensor, it combines high-end technology and user-friendly digital services in one cost-effective device. The instrument's continuously recorded measurement data can be accessed at any time, from anywhere due to the device's cloud connection, with communication made possible by an integrated SIM card. An integrated battery allows operation without an external power supply, a particular advantage for measuring points that are difficult to access. It also provides information on the location of the storage tanks and containers via the cellular communication system.

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Eddy Current Measurement Systems

Kaman Precision Products (Middletown, CT) is offering the KD-5600 family of eddy current measurement systems for use in COTS applications for fast steering mirrors, magnetic bearing active control, shaft vibration, image stabilization, and adaptive optics. Designed for non-contact linear position displacement sensing applications, there are three configurations for tailored use. The KD-5656 (digital system), KD-5640 (analog system), and KD-5690 (FE system) are equipped with custom sensors, signal processing, analog to digital converter, and a custom calibration system to ensure precision and accuracy. For optimum operation of each channel, there are two matched sensors. Input signals are filtered and SWaP-C scaled to provide optimum operation, remove common mode noise, and deliver a drive signal. They also provide digital filtering as part of the signal conditioning to reduce signal noise.

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PoE-Powered Sensors

Launching with 12 of Monnit's (Salt Lake City, Ut) most popular sensors for remotely monitoring critical building systems and infrastructure, their new PoE•X sensors allow users to incorporate remote monitoring into their building's Power over Ethernet (PoE) infrastructure. PoE•X leverages existing state-of-the-art technologies within “smart” buildings, allowing users — particularly those maintaining mission-critical facilities — to take advantage of financial and practical benefits. The development of these sensors allows for a plug-and-play placement into a building's LAN network. Although they can be powered via a building's PoE infrastructure, users have the additional flexibility of plugging the sensors into both line power or a standard Ethernet network. The PoE•X line will initially consist of temperature, humidity, dry contact, water detect plus, open/close, water rope, high temperature, low temperature, duct temperature, motion detection, air quality PM 2.5 meter, and thermocouple sensor types.

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Hermetically Sealed LVDTs

The new HATR Series of hermetically sealed AC-LVDTs from NewTek Sensor Solutions (Pennsauken, NJ) are temperature, vibration, and debris tolerant to serve in inline position measurement applications in the harsh and often caustic conditions of pulp and paper mills. For example, they can serve in process control systems to provide dimensional feedback on tensioning arm position and roller location to control paper thickness. Featuring a welded W hermetically-sealed housing, they are resistant to debris, fluids, and caustic materials and operate at temperatures of 400°F. The sensor windings are potted inside the housing with a two-component epoxy, providing protection against hostile environments. With electrical connections made through a radially mounted connector, they provide a reduced housing length to fit into smaller spaces. Units are available in ranges of ±0.05 inch (1.27mm) to ±10 inches (250mm). Linearity is <0.25% of full range and repeatability <0.01% of full range.

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Dynamometer Test System

SAKOR Technologies Inc. (Owosso, MI), announced a system that features dual opposing 7.5 kW AccuDyne™ four-quadrant AC motoring dynamometers, variable frequency drives, and a variety of subsystems configured for testing electrical machines. The dynamometers are capable of bi-directional loading and motoring, allowing researchers to test different algorithms and designs. One dynamometer can be used for testing permanent magnet motors and the other to test induction motors.

The dynamometers feature regenerative operation, which recovers most of the load energy and makes the system extremely power efficient. They operate at up to 8,000 revolutions per minute (rpm) and offer up to 150 percent overload capacity, making them compatible with most small hybrid and electric vehicle architectures.

The system is automated by SAKOR's DynoLAB™ test automation control system, which provides the capabilities necessary for the typical test engineer and/ or technician to design and implement complex test procedures without the need to learn a programming language.

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Configurable 2D and 3D Machine Vision Solutions

With the SICK (Minneapolis, MN) App-Studio, part of the SICK AppSpace ecosystem, programmable sensors and edge devices can be configured for new tasks using SensorApps. Many apps are already available for download via the SICK AppPool. For specific applications, SensorApps can also be used independently by the customer and developed together with SICK experts and the support of a developer community. Until now, basic programming skills were required to generate your own SensorApps in SICK AppStudio. That is no longer the case with the new AppPool. With a new graphic interface, users can now solve specific sensor applications, even without programming skills, by configuring and linking predefined function blocks in a data flow.

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Sensor Technology Magazine

This article first appeared in the September, 2020 issue of Sensor Technology Magazine.

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