DS-MAY23-PG36_Layout 1 18/05/2023 15:32 Page 2


PRODUCTS SENSORS & SENSING SYSTEMS COMPACT INDUCTIVE DISPLACEMENT TRANSDUCERS


With a diameter of just 9.5mm, the rugged EVT series of inductive displacement transducers from MEGATRON are suitable for a wide


range of applications in


measurement and test setups. Designed for measuring ranges


from 1.3mm to 25mm, the sensor can be used in ambient temperatures from -20˚C to +125˚C. On request, operating temperatures up to 200˚C and pressure-tight versions up to 3.5 MPa (35 bar) are possible. There are a wide range of EVT displacement


sensors. These are available with guided and loose pushrods and, when fitted with an internal return spring, can be used as an high accuracy probe. Applications include precisely determining assembly positions, measuring deformation, or inspecting workpieces in automation and robotics.


MEGATRON www.megatron.de/en


HIGH PERFORMANCE PHOTOELECTRIC SENSORS


Five variations of IDEC Corporation’s general- purpose photoelectric (PE) sensor family are available, each of which improves on or replaces SA1E products. A new ASIC provides a significantly improved price/performance ratio, while delivering better response times and more capable detection, the company explains. The new products are: • T: Through-beam, for detecting objects passing between emitter/receiver pairs.


• P: Polarized retro- reflective, for detecting objects passing between the receiver and a reflector, even in difficult lighting conditions. • D: Diffused-reflective, for detecting targets by the light reflected from the target. • B: Background suppression reflective, for improved and reliable detection of a wide variety of targets by the light reflected by the target. • N: Small beam reflective, for close detection of small targets. This new range of compact sensors offers response times of 0.5ms, compared with 1.0ms


ACCELEROMETERS WITHSTAND COSMIC CONDITIONS


Six years ago PCB Piezotronics supplied Lockheed Martin with accelerometers for use on NOAA’s GOES-16 weather satellite – and these are still working successfully today. PCB engineers supported Lockheed Martin’s efforts during the design and build of the Model 393M90 accelerometer to meet the GOES-R satellite program requirements. GOES-16 was the first of four Geostationary Operational Environmental


Satellites-R Series (GOES-R) next-generation weather satellites. The advanced spacecraft and instrument technology used on the GOES-R series has resulted in more timely and accurate forecasts and warnings. It improves support for detecting and observing meteorological phenomena impacting public safety, property protection, and economic health and development. The spacecraft carries three classifications of instruments: nadir-pointing, solar-pointing, and in-situ. The GOES-R nadir-pointing instruments include the Advanced Baseline Imager (ABI) and the Geostationary Lightning Mapper (GLM). These two instruments are Earth-pointing and are located on a highly stable, precision pointed platform that is dynamically isolated from the rest of the spacecraft. PCB’s accelerometers were used by Lockheed Martin to measure the dynamic environment of the instrument platform in flight, and to characterise that environment to improve the interpretation of instrument data.


PCB Piezotronics www.pcb.com


ULTRASONIC SENSORS FOR DEMANDING INDUSTRIAL APPLICATIONS


Robust ultrasonic sensors with M18 stainless steel housings are now available from PiL Sensors.


Aimed at demanding industrial


applications, such as film extrusion lines, the P47 series distance sensors have detection ranges from 50mm to 1600mm, and are available with fixed or factory-adjustable characteristics. Features of the range include fast response times, temperature


compensation and a synchronisation function for up to ten sensors, making them ideal for high-precision


distance measurements. Manufactured in protection


class IP65 and approved for a


temperature range of -20˚C to +70˚C, these are supplied with M12


connection and either switching or analog output.


PiL Sensors 36 DESIGN SOLUTIONS MAY 2023 www.pil.de


for previous generation models, for better detection of smaller and faster moving objects. Sensors are switchable between ‘light-on’ and ‘dark- on’ operating modes, and applicable models have an on-board sensitivity or range adjustment potentiometer. Depending on the


model, sensing distances can range up to 20m for through-beam, up to 5m


for retro-reflective, and between 10mm and 1000mm for other


reflective models. Tighter beams and more adjustability help designers deploy


the sensors in a greater variety of applications. The devices consume very low current and designers can choose models with cables or on-board M8 connectors for use with straight and right-angle cables. They are suitable for the operating temperature range -30 to +55˚C.


IDEC Corporation www.IDEC.com/usa


NEW CURRENT SENSOR DELIVERS CHARGE MEASUREMENT


ACCURACY FOR EV BATTERIES


To enable designers of Lithium-ion battery


management systems (BMSs) in the automotive sector to maximise the autonomy range of electric vehicles (EVs), LEM has introduced the CAB 1500 current sensor. This is the latest member


of LEM’s CAB series of automotive grade design sensors that use the properties of fluxgate transducer technology to deliver the high accuracy and low offset required for reliable coulomb counting – measuring the discharging current of Li-ion batteries to estimate their state of charge (SoC). The CAB series is compliant with the ISO 26262 functional safety standard (to automotive safety integrity level C) as well as easy application through a controller area network (CAN) interface offering 500 kbps. The high reliability CAB 1500 open loop fluxgate sensor can be busbar or panel mounted and combines best-in-class resolution up to 0.1% with the lowest offset and highest accuracy. In addition, it offers an extended current range up to ±1500A and compatibility with 800V applications to the IEC 60664-1 standard, as well as non-intrusive measurement for full galvanic isolation up to 2.5kV. Other features include low power consumption VS shunt technology, and 0.5% total error over temperatures from -40˚C to +85˚C.


LEM www.lem.com


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