Category Archives: Sensors / Proximity Sensors

ZF Hall-Based Position Sensors

Marine engine controls benefit from ZF Hall-based position sensors

Hall-based position sensors are becoming widely used in a wide variety of applications due to their contactless and wear-free measurement method. These sensors are used in outboard marine engines to control the trim level. Marine drive manufacturers rely on the Hall-based position sensors from ZF as reliable and robust components for their overall drive system.

The Hall-based position sensors from ZF have been established as a reliable sensor solution for marine applications, especially for the inclination and trim measurement of outboard motors. To ensure optimal performance of a boat depending on the speed, the outboard motor must have a certain inclination. Both angle and linear position sensors are used with an associated external magnet carrier to monitor and realign the current inclination of the motor. The sensors are completely contactless and have an almost unlimited lifetime, as no wear and tear occur caused by abrasion. For position measurement, the external magnet is attached a few millimeters above the sensor. If the magnet rotates, the magnetic field changes, which again leads to a change in voltage within the sensor electronics. Each voltage value can be assigned to a specific angle value.

Depending on the requirements and customers’ requests, ZF offers a range of different angle sensor variants with associated magnets for triggering signals. These vary in terms of the angular range (0-360°), signal redundancy (non-, semi- or fully redundant), connection interface (cable, connector), operating temperature range and form factor. Attributed to long lasting experiences and know how in hall-based sensor technology, also customized solutions can be fulfilled.


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ZF’s New Compact Magnet Carrier Ideal For Harsh Environments

“New compact Magnet Carrier 709-21995 for use with existing Hall-based angle sensors for precise and wear-free angle measurement”.

ZF presents its new compact Magnet Carrier 709-21995 for use with existing Hall-based angle sensors for precise and wear-free angle measurement. These are ideal for harsh environments such as in the steering system of forklifts and other off-road vehicles. The combination of the new magnet carrier with the ANG angle sensor offers enormous advantages in limited space due to its small dimensions.

ZF offers several angle sensor variants that differ between the redundancy of the output signal: non-, semi or full redundancy, (primarily for safety requirements), the measuring angle and the cable connection and connector type. These variants support flexible use in individual application areas of angle detection. The ANG sensor is the newest in the ZF angle position sensing portfolio. With its length of 3.2 cm and width of 4.5 cm, it fulfills strict requirements in respect of limited space in customer applications and has an extended temperature range (-40 to 140°C), high accuracy (+/- 2% to +/- 2.5%) and is rated IP68. Depending on the desired security, the ANG angle sensor is available in a simple version with three cable outputs but without a redundant output signal, or with four cables and a semi-redundant output signal.

The brand new and extremely compact magnetic carrier from ZF is ideally suited for combination with angle sensors over a measuring range of up to 360°. It works perfectly in conjunction with the ZF Hall sensors. The plastic carrier housing contains a rare earth magnet consisting of a samarium-cobalt compound. It is equipped with two brass bushings to attach the magnet carrier to the target object reliably. The magnet carrier has primarily been designed to serve applications with limited space. It is only 2.4 cm long and 1.8 cm high.

An application example is electric steering (steer by wire) in forklifts, one that ZF sensors and magnet carriers are already well established. The target is for the precise implementation of the desired steering angle from the driver to be communicated to the vehicle. The small magnet carrier is mechanically attached to the steering axle with M3 screws and rotates without contact. It is therefore wear-free over the Hall element of the sensor.


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Bulgin Sensor Range

Bulgin’s slim line photoelectric sensor range offers a high degree of mechanical and electrical stability. A cost effective and flexible sensing solution. Designed specifically for manufacturing automation and industrial automation sensing operations.

With a simple, secure and efficient design you can achieve a watertight and dustproof seal to any standard M5 interface. The sensors are made with highly robust casing material Stainless Steel 316 and withstand a high degree of physical impact.


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ZF’s GS82-AA02 Sensor Increases E-Bike Speed Sensor Portfolio

GS82-AA02 E-Bike Sensor

With the increasing popularity and growing trend of e-bikes, bicycle system suppliers have set goals to optimize power and performance of their drive systems. In order to support the driver in the best possible way, sensors are needed to deliver the required data and therefore adapt the engine’s power support. An essential component is the ZF e-bike sensor for measuring the current speed. The ZF e-bike sensor is based on Hall technology with significant advantages over conventional reed switches.

Especially for high-quality e-bikes, all components need to be functional, from the drive to the battery and cabling. This is also the case with the ZF e-bike sensor. Speed sensors of the GS series have been specially developed for use in Pedelecs and S-Pedelecs. The extremely compact design meets the necessary requirements for the use in e-bikes. The sensors are based on the principle of Hall-effect and therefore they are non-contact and durable. In combination with ferromagnetic target wheels, a high-resolution speed measurement with over 50 pulses per revolution can be implemented without any problems. In practice, this leads to a finer and quicker response from the e-bike drive – especially at lower speeds (e.g. when starting up a hill). The differential measurement of the magnetic flux also increases the robustness of the sensor against vibrations. In addition, there is no need for an external magnet, which is used with conventional reed switches. These are frail against even slight shifts on the spoke, which leads to functional failures and shut down of the drive unit.

The GS82-AA02 is the latest addition to the ZF e-bike sensor portfolio. This sensor is significantly more compact than its’ predecessor (21.75mm length, 9.35mm diameter) and optimized for use in e-bikes. As an interface to the drive system, the Higo connector has a cross-section of only 0.14mm² and due to its small size is prevalent in the e-bike industry. Depending on the customer’s requirements the contact via connector, as well as the cable length, can be preselected individually. The sensor requires a constant voltage supply of 6.5 – 20 VDC and measures frequencies between 1 and 2,500 Hz. They are designed for a temperature range from -25 ° C to + 85°C to fulfill the declaration of conformity in the e-bike industry.

The ZF sensor was originally developed for ABS applications. In addition to e-bikes, other target markets include e-scooters and various sports equipment for this small and efficient sensor.


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Sensata ACW4 / TCW4 Hall Effect Sensors

Sensata Technologies, an industrial technology company and a leading provider of sensors, today announced the availability of the new ACW4 Single Turn and TCW4 Multi Turn Absolute Hall Effect Sensors, which feature an over-molded, two-part modular construction that provides engineers with exceptional design flexibility.

The sensing electronics are encased in a thermoplastic polyamide shell while the separate activating magnet is external to the sensor assembly. This modular architecture results in a compact package of only 50mm in diameter by a maximum 24mm thick that allows designers to easily incorporate the ACW4 and TCW4 sensors into both new and existing systems. An over-molded housing completely encapsulates the electronics and seals the cable entry from exposure to the elements, making this IP67-rated sensor an ideal solution for robotic, industrial, manufacturing and material handling applications where dusty or wet conditions are common.

To help save time and cost, Sensata offers a variety of engineered magnet holder accessories that developers can use instead of designing and testing their own. A variety of output types are available to ensure that the ACW4 or TWC4 sensors can interface with the most common controllers. Unlike typical Hall effect sensors, which rely on a shaft to operate, there are no moving parts in contact with each other; eliminating any potential wear or misalignment.


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Schurter Thermal Fuse RTS Now Also Available With Shunt

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• Protects power semiconductors from thermal runaway
• Integrated current measuring sensor (shunt)
• SMD reflow solderable up to 260 °C
• Meets requirements according to AECQ

Schurter’s RTS thermal fuse, successfully launched in 2018, gets a new variant with an integrated shunt. The RTS is a particularly compact overtemperature protection device for power semiconductors in SMD technology for highest demands.

RTS stands for Reflowable Thermal Switch. It was developed to protect highly integrated power semiconductors from overheating. Prior to mechanical activation, the new thermal fuse can be soldered on conventional reflow soldering machines with profiles up to 260 °C.

Minimal Footprint
The new overtemperature protection device comes in the same minimal dimensions and maximum breaking capacity despite its additional shunt functionality. On its small 6.6 x 8.8 mm footprint the RTS can handle operating currents of up to 130 A and rated voltages of up to 60 VDC.

Integrated Current Measuring Sensor (Shunt)
The shunt version has an integrated resistance with particularly low temperature dependence. This resistance, known as a shunt, enables precise current measurement and enables an additional – non-thermal – circuit protection, e.g. via a controller.

Protection Against Thermal Runaway
Thermal runaway refers to the overheating of a power semiconductor due to a self-reinforcing, heat-producing process. One of the reason is the trend towards increasing power density and miniaturization of electronic circuits. The RTS protects these power semiconductors against thermal runaway. In such an event, the thermal fuse reliably interrupts the circuit at a precisely defined temperature as a fail-safe device.


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Sensata Solutions for Chillers & Boiler HVAC Systems


HVAC is the Heating, Ventilating and Air Conditioning method for conditioning the indoor environment of a building, usually with the intent of keeping the occupant comfortable.

Sensata provides many solutions to monitor this process and make it as efficient as possible. Sensata solutions range from the sensors that allow users to monitor their system to circuit breakers which protect the application.


Click Here →  Sensasta HVAC Systems


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Bulgin New Slim Line Photoelectric Sensor Range

What Is It?
The Photoelectric Sensor is an interface which converts a photonic input to an analogue or digital output. It can be used to detect distance, presence or absence of an object using a light transmitter and a photoelectric receiver. The new Photoelectric Automation Sensor Series is a diffuse reflective sensor which can be used to detect objects up to 40mm away.

Why Buy It?
• Simple, secure and efficient design.
• Only require one sensor for your system as opposed to using other technology, such as retro-reflective or through beam.
• Achieve a watertight and dustproof seal to any standard M5 interface.
• Highly robust casing material Stainless Steel 316.
• Withstands a high degree of physical impact.
• Vibration tested to 10-50Hz double amplitudes. X.Y. Z. each direction 2 hours.
• Shock and Bump tested to 1000m/s², X.Y.Z. each direction 6 times.

Key Features:
• Sealed to IP67
• Stainless Steel 316 shell
• Cabled versions with or without connector
• 2M cable length
• <0.5ms response time
• NPN & PNP output
• Detection ddistance 1 – 40mm
• Light point diameter 5.0mm at 30mm
• Power supply voltage 12 – 24 VDC
• Ambient humidity 35 – 85%
• Operating temperature -10 to 50°C
• Small body, just 4.5mm thick


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Finder Type 18.5K – KNX Presence and Movement Detector


A new technological product has been added to the range of presence and movement detectors of Series 18: this is the type 18.5K detector with KNX technology.

Type 18.5D


The new movement sensor uses the reliable and tested detection technology that already characterizes the previous Series 18 detector models and is suitable for applications in building automation systems featuring the KNX standard.

Technical features:
Specifically designed to sense micro movements, this sensor is the ideal solution for the management of lighting systems in offices and work environments in general and schools.

The sensor lens has been developed to obtain higher sensitivity in the detection of micro movements and guarantees two reading and sensitivity areas, identified as
•a movement area, which is larger and covers an area of 8×8 m;
•a presence area, which is more important for detecting small movements, and covers an area of 4×4 m.

The type 18.5K movement and presence sensor is provided with 2 software outputs, one of which is controlled according to the light measured by the internal sensor (this function can be disconnected), and is also appropriate for particular types of systems where it is necessary to control both the lighting and the heating/air conditioning.

There is also a third software output that sends only movement information to the KNX Bus: thanks to specific software inputs, sensors can be networked in Master/Slave configuration. This functionality is particularly suitable for controlling large rooms.

Accessories included in the package:
The detector is supplied complete with supports that can be used for ceiling or suspended ceiling mounting and is powered directly by the KNX Bus.


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Honeywell HPM Series Partical Sensor


HPM Series

Honeywell is pleased to introduce its HPM Series Particle Sensor, a new sensor designed to provide reliable and more precise detection of environmental contaminant particles. The HPM Series Particle Sensor is a laser-based device which uses a light scattering method to detect and count particles in the concentration range of 0µg/m3 to 1,000 µg/m3 in a given environment. This can address the PM2.5 and PM10 detection range. The sensor’s light is analyzed and converted into an output signal, which communicates the particulate concentration in real time.


Value to Customers
*  Enables the ability to more accurately and cost-effectively monitor or control environmental particulate contaminants
*  Industry-leading long life of 20,000 hours of continuous use essentially equates to seven years of product life (based on eight hours of operation per day)
*  Proven EMC performance enables the ability to perform more accurately in a variety of tough industrial environments
*  Enhanced reliability allows for use in most harsh environments

*  Laser-based light scattering particle sensing
*  Concentration range: 0 μg/m3 to 1,000 μg/m3
*  Fully calibrated
*  EMC: Heavy industrial level IEC61000
*  Response time: <6 s
*  Supply current: 80 mA max.
*  Output signal: UART (Universal Asynchronous Receiver Transmitter)
*  PM2.5 output (PM10 output optional with additional programming)
*  RoHS compliant

Potential Applications
*  Air conditioners
*  Air quality monitors
*  Environmental monitoring

Consumer Products:
*  Air cleaners
*  Air conditioners
*  Air purifiers
*  Car air cleaners
*  Handheld air quality detectors


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