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SENSORS & DATA ACQUISITION Data analytics for raw internet-enabled industrial data An integrated data collection and analytics appliance, Proficy Historian IPC from GE Intelligent Platforms uses the raw data of internet-connected industrial machines to bring out actionable information. The IPC platform enables numerous data collection tags on a rugged form factor small enough to install with machine controls in harsh environments. Proficy Historian’s patented compression algorithms enable greater volumes of data to be stored on the IPC’s hard drive than competitive data historians, without sacrificing the data’s integrity, claims the manufacturer. The solution integrates a set of proven products— the PACSystems RXi XP, the latest of GE Intelligent Platforms high performance IPCs, and Proficy Historian 5.5 – into a purpose-built unit. The appliance has capacity for 100 to 5000 data collection points on a single compact device but multiple IPCs can be connected to expand that capacity via a wide area network (WAN). GE www.ge.com Combined proximity and illuminance sensor simplifies HMI design Presented as the smallest combined proximity and illuminance sensor, the surface-mount LT-1PA01 device measures 3.05x2.10x1.10 mm and integrates both an optical proximity sensor and an illuminance sensor. The proximity sensor uses a photoreceptor to measure the distance to an object based on the amount of returned light. Another photoreceptor is used to detect the level of ambient brightness. Such sensors are widely used in smartphones to darken the screen when the phone is near the user’s face during a call or to increase the brightness of the screen’s backlight when used outdoor. The device has an extremely low power profile, consuming only 80 μA during proximity sensing. Illuminance sensing angle is ±45 degrees at 50% and sensing distance is up to 70 mm with grey card. Operating voltage is +3.3 VDC. Communication with the host processor is via I2C serial communications. Murata Europe www.murata.eu PCIe DAQ cards offer high resolution Swiss company Elsys Instruments, maker of custom and standard fast, high-precision data acquisition systems, has expanded its family of LAN controlled transient recorders with a cost-effective series of high resolution PCIe data acquisition cards. TPCE-LE PCIe data acquisition waveform digitising products are suitable where the acquisition of high speed, high resolution and high precision waveform data is required. Features include advanced trigger modes, continuous data acquisition mode, single ended and differential inputs, digital input lines and ICP coupling for powering piezo sensors. They enable the development of scalable systems that can be expanded to meet growing data acquisition needs. TranAX-LE operating and analysis software comes with each board, as well as a LabVIEW Instrument driver, C++/C# and IVI scope class driver. As with Elsys’ existing TPCX and TPCE platforms, the TPCE-LE modules can be housed in any existing TraNET system: 1 TraNET FE transient recorders that hold four to 32 singleended channels or two to 16 differential channels; 2 TraNET EPC industrial computer frame with 16 slots for a total of 64 channels; 3 TraNET PPC ruggedized portable computer system with six slots for a total of 24 channels. All Elsys recorders feature input channels with the ability to be individually triggered. For example, four full trigger circuits are available on a four-channel recorder to obtain logic triggering such as “AND” and “OR”. Synchronisation can be established with many associated channels. Advanced trigger modes include slew rate, pulse width, pulse pause, period, missing event, window-in and window-out as well as the usual edge pos/neg triggering with trigger hysteresis values set by the user. Elsys www.elsys-instruments.com Magnetoresistive sensors require nanoamps to replace reed switches Honeywell Sensors and Control, a division of Honeywell International Inc. (Morristown, New Jersey), has introduced a family of ICs comprising what it claims is the lowest power and highest sensitivity anisotropic magnetoresistive sensors. The sensors provide a binary output - engaged or not engaged - and can replace reed switches in numerous applications and with current draw in the range 300- to 400-nanoamps the sensors are suitable for battery-operated equipment, the company claimed. The Nanopower family includes two components both housed in a SOT-23 package. The SM351LT has a sensitivity of 7 gauss and 11 gauss maximum with a typical current draw of 360nA. The SM353LT is sensitive to 14 gauss and has a maximum operational tolerance of 20 gauss with a lower typical current draw of 310nA. Potential applications are vast include counting, metering and flow sensing, antitamper switches, door and window closed sensors and position sensing in industrial equipment. Omnipolarity allows the sensor to be activated by either a north or south pole while the push-pull CMOS output does not require external resistors The sensitivity of the sensors means that they can be sited further away from a magnet than would be the case with a Hall Effect sensor and can be used with ferrite magnets, not requiring stronger rare-earth enriched magnetics, said James McKenna, product director for sensors in Europe. The devices work from a voltage supply of 1.65V to 5.5V and across a temperature range of -40 to 85 degrees C.The devices are smaller and more durable and reliable than reed switches, at the same sensitivity and essentially the same cost. Honeywell Sensors and Control www.honeywell.com 44 Electronic Engineering Times Europe June 2014 www.electronics-eetimes.com


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