Advertorial
TECHNOLOGY IN ACTION Angle sensor for vehicles Non-contacting – rugged – reliable – extremely slim – maximum installation tolerance A
s the exclusive UK distributor for Contelec, Variohm EuroSensor presents the following application note on non-contacting angle sensors:
The challenge
Modern vehicle manufacturers are faced with increasingly stringent safety directives and complying with these is frequently a major challenge. For example, an important requirement is to be able to identify the precise (angular) positions of a wide range of vehicle components, including support legs and telescopic stabilizers. This kind of task requires rugged, hard-wearing, high-precision rotary sensors,
utilizing innovative concepts to ensure
redundancy and reliability. In applications in which there is a considerable distance between sensors and the control unit, an additional consideration is to maintain high standards of signal transmission and reception. Other important criteria include ease of installation and upgradeability in the normally cramped installation space, together with generous installation tolerances. And to make matters even more difficult, solutions are called for that are not affected by wear-induced offsets.
The solution
Precisely in response to such applications and requirements, Contelec has developed the Vert-X 90E – an extremely slim, rugged sensor solution. This is a non-contacting rotary sensor, comprising two physically separate units: the
IFLEX – easy assembly,
easy maintenance – easy choice A
ctuator solutions with built-in intelligence are the future. LINAK now launches a sub-brand, which unites all TECHLINE systems,
with built-in
intelligence, under one umbrella – We call it iFlex – Intelligent Flexibility The demand for more intelligent solutions is increasing, which means that applications become more and more complex. Solutions with external BUS- communication can be costly due to an increased amount of signal cables and BUS-communication boxes as well as longer installation time.
This is why LINAK® provides solutions with built-in intelligence, which are easier to install and maintain as well as more cost-efficient. At present, LINAK offers various intelligent solutions such as LINBUS, MODBUS and the simple H-bridge integrated within some of our actuators.
More is to come and in order to establish an overview of these current and upcoming solutions with built-in intelligence, TECHLINE now launches the iFLEX sub-brand, which functions as a descriptive term under which every LINAK TECHLINE actuator with built-in intelligence is unified.
The benefits of iFLEX solutions are many. The most obvious are: • The actuator and control box are combined into one unit, which reduces the number of relays and cables
• BUS electronics ensure high control of the actuator’s positioning and speed
• Through a configuration tool, it is possible to set the speed, the stroke and the current limit of the actuator. This feature also makes service maintenance easier
Cheap and easy assembly and lower maintenance costs will ensure more effective production and lower production costs for the end-user
LINAK UK Ltd 56 Tel: 0121 544 2211 Web:
www.linak.co.uk enter 805
Stainless Steel SHX Push Button Boxes
boxes.
Availability is in 4 popular sizes suitably pre-drilled for up to four 22.5mm push buttons, alternatively plain lids can be specified. Rated to IP69 these boxes present the ideal solution where hygiene and corrosive factors are apparent. IP69 ensures protection from dust and allows
T
close range high pressure wash down applications - an essential requirement in food processing areas. The range is manufactured from 1.2mm grade 304L stainless steel [316L is available on request], with captive lid screws thread into sealed bushes outside the enclosure aperture and earthing points on the body and lid.
Mounting can be from inside the box or by optional wall mounting brackets and fixing pods allow the use of din rails or mounting plates. A technical datasheet is available
Eta Enclosures (UK) Tel: 01709 386630 Web:
www.eta-enclosures.co.uk
enter 806 OCTOBER 2012 Design Solutions
he ETA Enclosures product line up now includes a new range of robust stainless steel push button
Variohm EuroSensor Tel: +44 (0) 1327 351004 Web:
www.variohm.com
enter 804
“magnetic actuator” and the “sensor”. The positional encoder is a rugged, passive element, attached to the rotating object, while the active sensor is attached to a stationary object, located a certain distance from the magnetic actuator. The non-contacting architecture ensures there is no direct mechanical linkage between the rotating axis and the actual measurement system, maintaining accurate measurement even with large radial and axial offsets of up to several millimetres. This feature becomes noticeable in the installation of the rotary sensor, since measurement remains accurate even with a wide installation tolerance range. A further point to note is that any offsets developing over the course of time have no adverse influence on the precision of angle measurement. Particularly eye-catching is the extremely slim design of the heavy-duty sensor, allowing it to be used in applications and positions that would previously have been inconceivable. To satisfy the very stringent safety requirements in terms of redundancy and data transmission, the rotary sensor can be equipped with various single-output and redundant interfaces. The Vert- X 90E rotary sensor is based on the innovative Vert-X MH-C2 technology, which provides the user with a simple means of on-site setting of index points (e.g. a zero point) and direction of rotation.
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