Linear displacement transducer 8738-DK25, DK50, DK100
magnetostrictiveanalogIP64

linear displacement transducer
linear displacement transducer
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Characteristics

Type
linear
Technology
magnetostrictive
Output signal
analog
Protection class
IP64
Applications
industrial
Other characteristics
rugged, vibration-resistant, cylindrical, incremental
Measuring range

Min.: 0 mm
(0 in)

Max.: 100 mm
(3.94 in)

Power consumption

1 W
(0 hp)

Ambient temperature

Min.: 0 °C
(32 °F)

Max.: 50 °C
(122 °F)

Description

Incremental magnetic measuring heads offer maximum precision over the full range of measurements. As a result of the magnetic operating principle and the robust mechanical construction, they are insensitive to soiling and are therefore ideally suited to use in production facilities. Thanks to the high quality of their measurements, their high protection and long service life, these sensors are used in many technologies (industry, research, development etc.). Typical applications include: -Monitoring both slow and fast movements between machine parts -Measurements of position and positional changes in components and structural foundations, of servo regulators, valve and robot controllers -Measurement of growth, and so on The incremental displacement sensors are based on a magnetic principle: consisting of a magnetic scale and a multi-slot reading head that responds to changes in magnetic flux, they detect linear movements with high precision and resolution. The scale of ferromagnetic alloy – or magnetic tape – is magnetized by an alternating magnetic field with a pole spacing of 0.2 mm. A special recording head and a laser measurement system guarantee that the graduations are very precise. From the magnetic pattern on the scale, the multi-slot reading head generates a signal proportional to the movement. The analog signal generated by the reading head is electronically divided and digitized. Changes in length can be measured with a resolution of from 1 μm down to 0.1 μm. Features: -Measuring ranges between 0 ... 5 mm and 0 ... 100 mm -Accuracy up to ± 2 μm -Diameter 20 ... 25 mm -Vibration resistant and dust proof -High protection class up to IP64

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