036-037_EETE-VF

EETE JUNE 2013

High density optical fiber enables stress analysis over large areas The ability to measure multiple sensing points over large intricate surfaces can be a difficult task. Traditionally engineers have used electrical strain gauges to monitor many points over a structure such as an aircraft wing or large composite component. However applying many individual gauges is both time consuming and adds significant weight to the structure in the form of cabling. Fiber optic sensing techniques make this task easier by combining many Sensors on a single fiber. However with the launch of the FBGS ‘All Grating Fiber’ it is now possible to position sensors adjacent to one another, making it possible to monitor changes throughout the complete structure and see how mechanical influences at one point can affect another. DTG-LBL-1550-AGF is a low bend loss fiber with densely spaced Draw Tower Gratings (DTGs) over the full length of the fiber. It is designed to be used with an OFDR (optical frequency domain reflectometry) system that allows fast and precise measurements over a wide strain or temperature range with spatial resolution down to a few mm over the entire fiber length. The chain can be configured such that more than 95% of the fiber contains gratings. FBGS www.fbgs.com 4-channel analog input device for voltage and sensor-based measurements The M-SENS2 4-channel analog input device from Ipetronik offers a direct CAN (Controller Area Network) bus output. Compatible with the previous M-SENS, the new module has a higher internal sample rate and a newly designed 500Hz hardware filter to support higher input frequencies. M-SENS2 covers twelve unipolar and twelve bipolar voltage measurement ranges from ±0.1 V to ±100 V. All inputs also support the often used 0 to 20 mA or ±20 mA current input without adding external hardware. Each input provides a selectable sensor excitation of up to 15 VDC and a maximum supply current of 60 mA. Measurement inputs, sensor excitation, CAN bus and Power Supply are completely galvanically isolated from each other. The output data is transmitted using CAN bus 2.0B the automotive standard according to ISO 11898-2 with up to 1 MBit/s. All configuration settings can be set up conveniently using IPEmotion, the company’s configuration and Data Acquisition software. Ipetronik www.ipetronik.com Digital and analogue I/O modules have built-in web servers Audon Electronics’ ControlByWeb family comprises a set of DIN rail mounting digital and analogue I/O modules with built-in web servers. This allows their remote monitoring and control across the Web or any other IP network using a standard web browser on a computer, tablet or smartphone. Setup is simple, fast and cost-effective, with no special software to download, no drivers to install, no batteries to change and no monthly licensing fees. ControlByWeb modules can be assembled into an unlimited range of remote control, data acquisition, remote monitoring and industrial automation applications. The ControlByWeb family is exemplified by the WebRelay-Quad Ethernet Relay Unit. This has four independent 28V 1A SPDT relays, each of which can be activated, deactivated or pulsed remotely through its web server. Alternatively the unit can be integrated into other computer control schemes using HTTP, XML, SNMP or Modbus/TCP protocols. Audon Electronics www.audon.co.uk Ultra-Miniature - High Reliability Quartz Crystals, Oscillators and Sensors • Highest shock capability in the industry • Military temperature range and beyond • Ultra-low power consumption • High stability and precision EXTREME INNOVATION High Reliability Crystals and Oscillators • Expert technical support • Designed and manufactured in the USA CX16A Medical Military and Industrial Applications CXOX_A CX16 CXOX/HG/HT CXOMK • Excellent long term aging 24 MHz to 50 MHz Crystal 2.0 x 1.2 x 0.4 mm 16 MHz to 250 MHz Crystal 3.2 x 1.5 x 0.5 mm 32.768 kHz to 160 MHz Oscillator 3.2 x 2.5 mm 32.768 kHz to 200 MHz Oscillator CX11A CX11L/HG CXOMK/HG/HT 6.5 x 5.0 mm High-Shock • High-Temperature • High-Precision Military and Avionics | Industrial | Medical MEETING THE EXTREME DEMANDS OF RAPIDLY EVOLVING TECHNOLOGY AS9100C ISO 9001:2008 STATEK CORPORATION 512 N. Main St., Orange, CA 92868 Tel. 714-639-7810 Fax 714-997-1256 www.statek.com www.electronics-eetimes.com Electronic Engineering Times Europe June 2013 35


EETE JUNE 2013
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