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SENSORS & TRANSDUCERS Pressure monitoring RFID tag takes 0 bar to 30 bar Built in a compact PCB format, the Cyclon-05BA is a passive RFID tag that integrates a MS5803-05BA sensor from Measurement Specialties to monitor pressures up to 6 bar. It also integrates a temperature sensor with a range from -30ºC to +85ºC and an accuracy of ±1ºC. Another part from Farsens, the Cyclon-30BA integrated a MS5803-30BA to cover ranges up to 30 bar. These RFID pressure monitor tags are compatible with commercial UHF RFID readers (EPC C1G2). With a 2W ERP setup the battery-less pressure sensor can communicate to over one meter and a half. The tags come in a variety of antenna designs and sizes to adapt the performance to the required application in the 860-960 MHz band. Such tags could be used in Tire Pressure Monitoring Systems to monitor wheel pressure, removing the need for batteries embedeed inside the tire, hence reducing weight and possible inbalances. Farsens S.L. www.farsens.com UHF RFID sniffer operates in real time CISC Semiconductor has released a new software module for its CISC RFID Xplorer unit, that records and analyzes the communication between the tag and reader in real-time. This new module turns the CISC RFID Xplorer Sniffer in a tool to analyze RFID reader and tag signals. The detection and decoding of reader commands and tag responses is done in real-time. The CISC RFID Xplorer Sniffer lets the user to trigger on reader commands. It logs the communication between the reader under test and tags into a TXT file. Complex waveform signals can be recorded and saved on the hard-drive in a stream file to make them available for further analysis both in the time and frequency domain. This includes message parsing, waveform analysis, frequency spectrum and link timing analysis. The instrument delivers high precision result and premium receiver sensitivity that covers the RF band from 50 MHz to 2.2 GHz. The sniffer mode of the CISC RFID Xplorer supports multiple standards including GS1 EPC Gen 2, ISO/ IEC 18000-63, RAIN RFID and upcoming ISO/IEC 29167 crypto suites. CISC Semiconductor www.cisc.at/xplorer Aito offers touch sensors with haptic feedback A developer of software-enhanced piezoelectric touch sensors, Aito BV has announced the availability of ATH220 and ATH222 controller ICs that enable touch sensors to also provide haptic feedback. With these devices, it is now possible to sense the touch of a finger on a flat panel surface and immediately confirm operation with a physical sensation created by haptic vibration. The ATH220 controller has 10 channels that allows for various combinations of piezoelectric input and haptic, LED indicator and buzzer outputs, supporting a maximum of five haptic piezoelectric touch buttons when configured without buzzer and LEDs. The ATH222 has 18 configurable channels allowing up to six haptic piezos, 5 LEDs and a buzzer simultaneously. Both devices have the ability to apply multiple haptic, LED and audio feedback waveforms so that each touch key can provide a distinct response. So, while it is possible to mimic the ‘click’ sound and feel of a mechanical button, more sophisticated responses can also be devised to communicate other control functions. These latest controllers are being targeted at home appliances and mobile devices that can also benefit from the other advantages of Aito’s touch technology, such as the ability to work with metal surfaces and use seamless, sealed panels. In common with previous AitoTouch controllers, the ATH22x devices also enable different piezoelectric sensing parameters to be set for each key - to determine sensitivity, detection area, and to cope with different overlay stiffness, materials or mechanical integration conditions. Aito BV www.aitochip.com Espros launches QVGA 3D ToF sensor Espros Photonics AG (Sargan, Switzerland) has announced the EPC660 is a 3D time-of-flight QVGA imager that offers backside illumination and high sensitivity to near-infrared light. The image sensor has a 320 by 240 CCD pixel field and includes control logic to operate the device. Some 66 full frame ToF images are delivered which can be increased to more than 1,000 ToF images. All configuration is done via an I2C interface and an integrated EEPROM holds factory settings and production and configuration data. The sensor includes an integrated LED driver capable of driving more than 200mA peak current.. Depending on the system design the sensor can provide millimeter resolution of distance at up to 100 meters. The high sensitivity of the optical front end allows for reduced IR illumination and thereby reduces overall power consumption. The CCD pixel architecture can tolerate ambient light levels of up 130kLux making the sensor suitable for use outdoors. Espros Photonics AG www.espros.ch 42 Electronic Engineering Times Europe January 2015 www.electronics-eetimes.com


EETE JAN 2015
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