精密扭矩传感器

精密扭矩传感器

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2022-08-09 13:24:37
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波司特精密仪器(上海)有限公司

波司特精密仪器(上海)有限公司

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产品简介

8740系列DC/DC位移传感器感应式

详细介绍

8740系列DC/DC位移传感器

感应式,用于测量位移或幅度,可转换为位移,积分测量放大器,坚固,振动和防震,特殊版本可根据要求

  • Features

    • 量程范围从0 … 1 mm 到0 ... 150 mm
    • 非线性度 0.25 % F.S., 可以选配非线性度 0.1% F.S.
    • 集成放大器,信号输出 0...5V
    • 可以选配信号输出为 0...10V 或 4...20mA
    • 不易受到设备不易受振动或冲击
    • 特别型号定制可参考选配
  • Product data

    型号 8739
    量程范围
    0...1mm
    0...2mm
    0...5mm
    0...10mm
    0...25mm (不带复位弹簧)
    信号输出类型
    0...10V
    0...5V
    ±5V
    4...20mA
    10...0V
    5...0V
    USB
    保护等级
    工作温度
    激励供电电压
    复位弹簧
    具体特征
  • Description

    Inductive displacement sensors using the principle of the differential transformer (LVDT) can be used to measure displacement and, indirectly, magnitudes that can be converted into displacements such as force, pressure, strain, torque, vibration and so forth.

    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.).

    Applications include measuring, controlling, regulating and monitoring both slow and fast movements between machine parts, measurements of position and positional changes of components and structural foundations, servo regulators, valve and robot controllers, growth measurements and so on.

    Their design is robust - the internal coils and electronics are potted - as a result of which the sensors can easily withstand shock and vibration. This makes the sensors also suitable for applications (e.g. in vehicles) and for test installations where they will be subject to many test cycles.

    These inductive displacement sensors with integrated electronics incorporate a differential transformer and a carrier frequency measuring amplifier, potted and protected by a stainless steel housing.

    The differential transformer consists of one primary winding and two secondary windings; these are arranged symmetrically on either side of the primary winding. The integrated electronics demodulates, filters and amplifies the AC voltage induced in the secondary windings. A rod-shaped core is able to move inside the differential transformer. As an output, the sensor delivers a DC voltage whose magnitude proportionally depends on the position of the moveable core inside the sensor.

    Model 8740 incorporates a freely moveable, non-sprung core with two sliding Teflon rings that center the core in the hole through the body of the sensor. At the end of the moving rod is an M2 thread that can be used to couple the core mechanically to the object being measured. Any lateral force acting on the rod should be avoided.

    The moveable rod of model 8741 is mounted on ball bearings. A spring holds the tip of the probe against the object being measured. This version is advantageous when it is difficult or entirely impractical to implement a mechanical coupling. Once again, lateral forces will shorten the service life. The measuring side of the sensor is protected against pollution and splash water by a bellows.

  • Downloads

    Data sheet
    pdf 8739参数资料
    EN

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