Data Sheet Typ 8739


Catalog excerpts

Data Sheet Typ 8739 - 1

LVDT Displacement Sensor With IN-LINE Amplifier IN-LINE amplifier Displacement sensor with threaded sleeve Displacement sensor Sensor with or without IN-LINE amplifier Vibration and wear free Inductive displacement sensors of this series measure linear displacements and indirectly all mechanical values convertible into displacements by additional equipment (i.e. tension and compression forces, extension, torque, vibration). The sensor body equipped with a connector has an outer diameter of only 8 mm and therefore is especially well suitable for the integration in dimensionally restricted structures. The cylindrical case made of stainless steel, houses a differential transformer (LVDT). It consists of a primary and two secondary coils with axially moveable core. A displacement of this core changes the magnetic induction of the coils. The INLINE carrier frequency amplifier converts the displacement into a direct proportional electrical DC voltage. The transducer is constructed as a probe at which within the measuring range a spring pushes the probe tip towards the measuring object. Bellows protect the mechanical guidance of the probe tip against pollution and splash water. The IN-LINE amplifier is integrated in the connector cable and adjusted specifically to the sensor. Both components form a unit while they can be separated for mounting purposes (miniature plug connection at the transducer). The use of not harmonized components may lead to increased measurement errors. For the IN-LINE amplifier version the sensor body is galvanically isolated from the excitation and from the measuring signal. Lateral forces decrease the durability. Typical application fields are displacement and extension measurements on ► Machines ► Servo systems ► Motor vehicles ► Test benches ► Production plants Technical changes reserved. All data sheets at burster praezisionsmesstechnik gmbh & co kg Germany Talstr. 1-5 . Gernsbach 76593 . Phone +49-7224-6450

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Data Sheet Typ 8739 - 2

Technical Data Measuring range 0 ... 25 mm on request Electrical values Excitation voltage (protected against wrong polarity): 13.5 ... 28 V DC Excitation voltage at Ua 0 ... 5 V: 9 ... 28 VDC Output voltage of measuring range: (standard): 0 ... +10 V Ripple of output voltage: approx. 20 mVss Internal carrier frequency: 4 kHz Load resistor: reccom. > 1 MW Environmental conditions Operation temperature range (only sensor): - 20 °C ... 80 °C Nominal temperature range (only sensor): - 20 °C ... 80 °C * relating to the range of nominal temperature. Mechan ical values Non-linearity:...

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