SENSORS & TRANSDUCERS PRODUCTS REFLECTIVE OPTICAL SENSOR
TT Electronics has introduced the Photologic V OPB9000 reflective optical sensor for industrial and medical applications. The sensor provides edge and presence detection of reflective media under a range of ambient light conditions. The OPB9000 is a reflective, CMOS logic output sensor with programmable
sensitivity, output polarity and drain select. It has 25+ kilolux ambient light immunity along with a wide operating temperature range. Its self-calibration feature avoids the need for constant recalibration as the LED ages, saving time for users. Temperature compensation and automatic gain control features enable it to function in demanding and dynamic environmental conditions where consistent performance from sensor devices is critical. The device’s response time of 6µs also ensures quick detection. The company says the OPB9000 is suitable for a variety of applications
including: industrial printing; dispensing; manufacturing automation; safety and security devices; and portable lab/medical equipment.
TT Electronics
www.ttelectronics.com OPTICAL PRECISION FOR OBJECT DETECTION
Optical window sensors are typically used for reliable detection and exact counting of fast-flying or falling parts in production or packaging processes. However, if the installation space is particularly small or if difficult working conditions arise, such as uncontrollable dust, solving this issue can become a challenge. A solution has arrived in the form of the BOH AI from Balluff’s BAE MICROmote family with separate amplifier. The company says the devices bring optical precision
to the smallest of installation spaces together with functional diversity. The sensor head has been designed to save space with the optical unit away from the evaluation electronics. It is connected to the electronics using a flexible and robust electrical cable. This assists with ease of handling, despite the minimal sensor size. Operators can adjust the sensor to their individual working conditions. The photoelectric beam's optical precision is attributed to the individual beams of light projected from
discreet precision LEDs, which are sequenced together and overlap in a specific manner. The high level of uniformity from the photoelectric beam produced in this manner is the key to precise object detection.
Balluff
www.balluff.com
IMPRESS SENSORS & SYSTEMS A new range of stainless steel pressure sensors with digital I2C interface is now available from Impress Sensors & Systems. The DCT 532 series is suitable for a range of pressure measurement applications in OEM and machine building applications. The device has a modular design of pressure sensor, allowing for the customisation of mechanical and electrical connections to suit specific customer applications. The sensor has response times of 1.5ms and a measuring rate of 500Hz, meaning no lag or downtime on the digital bus network.
www.impress-sensors.co.uk
NEW SLIMLINE SUBMERSIBLE PRESSURE SENSORS
Wika has extended its portfolio with the addition of two new submersible pressure sensors with a slimline design. The model LW-1 is suitable for level
monitoring of water and wastewater. The model LF-1 features long-lasting resistance within all common oils and fuels. The company says that the slimline case diameter of both submersible pressure sensors makes them suited for use within pipes. Thanks to a newly developed sealing concept, special cable and further options, such as Ex and overvoltage protection during lightning strikes, the instruments can work under harsh conditions.
Wika
en-co.wika.de
SENSOR-BASED EVALUATION KIT FOR TOF 3D VISION SOLUTIONS
Melexis has launched a chipset and evaluation kit that speeds the implementation of timeofflight (ToF) 3D vision solutions in challenging environments. The Melexis chipset brings together the company’s MLX75023 1
⁄3 sensor and the MLX75123, a companion IC that -inch optical format ToF
controls the sensor and illumination unit and delivers data to a host processor. Together the devices can minimise the component count and reduce the size of 3D ToF cameras. Designed for flexibility, the modular EVK75123 QVGA evaluation kit combines a sensor board featuring the chipset, an illumination module, an interface board and a processor module. The MLX75023 sensor has QVGA resolution and background light rejection capabilities of up to 120 kilolux. The company says the IC can provide raw data output in less than 1.5ms. The MLX75123 control chip has 12bit parallel camera interface, I2C connectivity and four integrated analogue-to-digital converters. Integrated functions include diagnostics and support for regionofinterest, configurable timing, image flipping and switching modulation frequencies. The company says the chipset is suited to
designs for automotive, surveillance and smart buildings, as well as industrial applications including machine vision, robotics and factory automation. Its operating temperature range is -20°C to +85°C as standard, with an elevated -40°C to +105°C option also available. These high temperature capabilities minimise the need for active cooling. This leads to a reduction in noise, as well as enabling cost and space savings in relation to thermal management. Consisting of four vertically stacked PCBs,
the EVK75123 evaluation kit has an 80mm x 50mm x 35mm form factor and an NXP
i.MX6 multi-core processor. Its illumination unit has four VCSELs, with a choice of either 60° field- of-view (FoV) or a wider 110° option for acquiring imaging data from a broader area.
Melexis
www.melexis.com
INSTRUMENTATION | FEBRUARY 2017
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