Low cost, compact linear position transducer

LX Series transducers are a low-cost compact device for use in light to moderate duty applications in dry environments. The plastic bodied device is ideal for high-volume OEM situations where cost is a major consideration and in applications where small size or low weight are of paramount importance. Models are available in 11 measurement ranges from 0″-2″ (50mm) to 0″-50″ (1250mm). Electrical outputs include both analog and digital.

Model LX-PA is available in eleven different measurement ranges with a max. range of 50″ (1250mm). The output is voltage from a potentiometric voltage divider circuit.

The sensing element in the LX-EP is an optical incremental encoder with electrical outputs consisting of two square wave, TTL level output channels in quadrature.

Applications: machine building industry, medical applications, store & convey technics, loading platforms, robot positioning, float gates…..

5 Advantages of ultrasonic fork sensors

  1. The ultrasonic transducers have a large diameter. Result:  large measurement range combined with hight linearity and resolution
  2. The amterial of the ultrasonic transducers has a Young’s modulus which ist constant up to higher temperatures compared to the past. Result: high temperatur stability
  3. The signals are compensated with computed data as well as with a temperatur sensor. Result: precise operation up to 60° C.
  4. The sensors have the teach-in feature. Result: They can be adapted to the actual air condition and the material.
  5. Software and the transducers are designed to eliminate the influence of multiple echoes. Result: Very small influence of plane change and high measuring speed.

Draw Wire Systems for demanding applications

The high-quality draw wire systems expand on their proven economical standard draw wire systems with solutions for demanding applications from 0.25m up to 40m measuring length.

The core of a draw wire device is a drum mounted on bearings, onto which a wire is wound. Winding takes place via a dynamic spring mechanism using a constant force spring, which allows for a high traverse speed of up to 10m/s and high acceleration of up to 140 m/s2; this proves ideal for dynamic applications and offers a long service life of approx. 2 million complete cycles.

The construction is particularly robust and unaffected by environmental influences thanks to its titanium-anodised aluminium housing. The wire is made from stainless-steel with a diameter of 0.5mm and is thus exceptionally hard-wearing. The wire exit is free from wear thanks to a diamond-polished ceramic guide.
The wide temperature range from -20°C to +85°C as well as the optional IP67 protection rating permit use in difficult environmental conditions.

The draw wire system is suitable for various sensors and encoders with analog outputs  (0 to 10V, 4 to 20mA, potentiometer), incremental (push-pull, RS422), absolute (SSI, BISS) and Field bus (CANopen®, Profibus, DeviceNet, EtherCat) interfaces.

The systems have a linearity of up to 0.05% and can be supplied on request together with the relevant calibration certificate.  Mounting is effected quickly using just 2 screws. The versatile housing technology allows for various mounting options. Connection is via either cable or connector.

UBA-A ultrasonic fork sensors used in production of photovoltaic foils

The new UBA-A sensors from WayCon Positionsmesstechnik are used in the production of novel flexible photovoltaic foils. Existing silicon based photovoltaic cells are deposited on glass, which is heavy and fragile. The new partially transparent polyimide films are subjected to vacuum coating processes and rolled up at the end. The low weight and mechanical flexibility opens completely new fields of solar electric power generation.

Between each process the film has to be brought back to the correct position. Here works the ultrasonic edge sensor with analog output type UBA-A. It gives a linear signal (0…10V) in function of the web edge position. The signal is then used by the machine control to slightly tilt the next roll until the foil runs again in the middle of the sensor. This is a permanent control process in the 1/10 mm range.

The ultrasonic sensors are here very much superior to conventional optical through beam sensors because they can detect the edges of transparent or partially transparent material without problems.