Sensors/Data Acquisition

Magnetic Sensors

Wireless, non-contact magnetic sensors from Steute Industrial Controls (Ridgefield, CT), in the presence of their actuating magnet, send a unique, coded telegram to one or more compatible, easily-programmed receivers. The receiver accepts up to 10 discrete telegrams per channel. The magnetic devices, powered by a field-replaceable lithium battery, operate at 915 MHz (USA/Canada/Australia) or 868 MHz (Europe). Other features include sensing range of up to 30 mm; bidirectional communications with receiver; IP67 ingress protection rating; operating temperature range of -20 to + 65 °C; and a stainless-steel or glass-fiber reinforced plastic housing.

Posted in: Products, Manufacturing & Prototyping, Sensors

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Pressure Sensors

All Sensors Corporation (Morgan Hill, CA) now offers the DLHR pressure sensor series. The new devices feature lower pressure ranges of 0.5 to 60 in H2O. All error compensation is performed internally by an advanced ASIC; no external calculation is required. The DLHR products include I2C or SPI output interfaces with 16/17/18-bit resolution. With the ability to operate at a low, variable supply voltage (from 1.68V to 3.6V), the DLHR Series supports portable applications, including medical devices associated with low pressure, remote sensing, spirometry, and industrial controls. Devices are available in 0.5, 1, 2, 5, 10, 20, 30, and 60 in H2O pressure.

Posted in: Products, Manufacturing & Prototyping, Sensors

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Humidity Sensor

The Humidity Sensor from Develco Products (Aarhus, Denmark) allows end-users to track indoor climate. Regular readings can be sent from the sensor to an app. Users control the humidity level and temperature from a distance; several households or institutions can be monitored from one central point. Equipped with the wireless technology ZigBee, Develco’s new sensor is easily connected with other existing devices in “smart home” applications. A ventilation system, thermostat, or air-conditioner can automatically be activated by the humidity sensor.

Posted in: Products, Manufacturing & Prototyping, Sensors

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Healthy Sensing: Do You Know When Your Proximity Sensor Is Sick?

The age of the fully connected aircraft is upon us and it isn’t coming a minute too soon to meet the demands of today’s commercial aircraft. The integration of smart components helps to increase revenue and reduce the cost to serve. Honeywell has designed and implemented the patented FAVCO (Fixed Amplitude Variable Current Oscillator) technology, which allows for continuous health monitoring capable of detecting the majority of circuit and sensor faults.

Posted in: White Papers, White Papers, Aerospace, Defense, Sensors

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Energy Harvesting's Emerging Role in a 'Smarter' World

When most individuals hear “energy harvesting,” they often think of alternative energy sources like wind and solar power. There is a distinct difference, however, between alternative energy and energy harvesting, or EH, approaches, based on the amount of power each can generate.

Posted in: Articles, Sensors

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Integrated Temperature and Capacitive Ablation Recession Rate Sensors

Innovators at NASA’s Glenn Research Center have developed new sensors that can be integrated into thermal protection systems (TPS) to protect them from environmental damage. Radiation, shock, and ablation (erosion of the protective outer surface) combine to damage the TPS material, so it becomes crucial to determine the temperature and rate at which the TPS material deteriorates. Glenn has developed an improved method to bulk-manufacture silicon carbide (SiC) devices that enables sensors to be manufactured economically. Additionally, this technique permits the simultaneous production of SiC sensors of different types (e.g., pressure sensors, flow sensors, and accelerometers) from the same SiC wafer. Glenn’s development holds great potential for any industry that requires sensors and monitoring of temperature, corrosion, or environmental damage.

Posted in: Briefs, Sensors, Sensors and actuators, Thermal management, Corrosion, Wear

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Cryogenic Liquid Level Sensor Apparatus and Method

This technology can be used in many medical, industrial, and pharmaceutical applications. Innovators at NASA’s Armstrong Flight Research Center have developed a highly accurate method for measuring liquid levels using optical fibers. Unlike liquid level gauges currently on the market that rely on discrete measurements to give broad approximations of liquid levels, Armstrong’s innovative fiber optic method provides precise and accurate measurements. Specifically, Armstrong’s novel method is capable of providing measurements at 1/4-inch intervals within a tank. This significant leap forward in precision and accuracy in liquid level sensing offers significant benefits to many industries. Originally designed by NASA to monitor a rocket’s cryogenic fuel levels, this technology can be used in many medical, industrial, and pharmaceutical applications.

Posted in: Briefs, Sensors, Measurements, Fiber optics, Liquid propellants, Spacecraft fuel, Fuel sensors

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