Probes

Probes in four different sensor technologies are available

Guide for Probes

Probes

Potentiometrical, magnetical and optical probes

Probes detect linear travels with a probe head that is screwed to a push rod of a displacement sensor. They are used for direct mechanical scanning of surface structures or as precision limit switches. For these tasks, probes with or without spring return are available and detect travels with an accuracy class of 1 µm and above.

Mechanical travels from 1.3 mm up to 200 mm with potentiometric, optoelectronic or magnetic (inductive or Hall-based) sensor technologies are available. Each measuring system has its own advantages depending on the respective application. Often an individual adjustment is necessary for demanding applications.

MEGATRON is your partner for the individual product optimization exactly tailored to your application. Our claim is to produce the functionally and economically best result. With high delivery reliability and assured quality products, we focus on long-term partnerships and accompany you throughout the entire lifespan of your application.


15 results found
Potentiometric Linear Transducer MM10
Potentiometric Linear Transducer MM10
Linear transducer in miniature design with rear and front guided push rod for 8 mm to 15 mm strokes
  • Linear potentiometer with almost infinite resolution
  • Space-saving mini design
  • Measuring lengths from 8 mm to 15 mm
  • Rear and front guided push rod
  • Long lifetime
Potentiometric Linear Transducer CLP13
Potentiometric Linear Transducer CLP13
Displacement sensor in space-saving design and front guided push rod for 13 to 100 mm strokes
  • Linear potentiometer with almost infinite resolution
  • Space-saving compact design
  • Measuring lengths from 13 mm to 100 mm
  • Also available with spring return probe
  • Long lifetime
Potentiometric Linear Transducer MM
Potentiometric Linear Transducer MM
Very compact linear transducer with rear and front guided push rod and pilot ring for 10 to 30 mm strokes
  • Space saving due to small dimensions
  • Long lifespan and high accuracy
  • Measuring lengths from 10 mm to 30 mm
  • Rear and front guided push rod
  • Two M3 threads and 10 mm flange diameter for easy integration
Potentiometric Linear Transducer CLP21
Potentiometric Linear Transducer Series CLP21
Compact and robust displacement sensor with front guided push rod in measuring lengths 15..100 mm
  • Compact and robust design
  • With front guided push rod
  • Available as a probe
  • Measuring lengths from 25 mm to 100 mm
  • Long lifetime and high accuracy
Potentiometric Linear Transducer SPR18
Potentiometric Linear Transducer Series SPR18
Displacement sensor in compact industrial design with spring-suspended probe tip for 25 to 100 mm strokes
  • Compact industrial design
  • With spring-suspended probe tip
  • Long lifetime and high accuracy
  • Linear potentiometer with almost infinite resolution
  • Measuring lengths from 25 mm to 100 mm
Potentiometric Linear Transducer SPI18
Potentiometric Linear Transducer SPI18
Displacement sensor in compact industrial design with front guided push rod and ball joint for 25 to 200 mm strokes
  • In a compact industrial design
  • Front guided push rod and ball joints
  • Long lifespan and accuracy
  • Linear potentiometer with almost infinite resolution
  • Measuring lengths from 25 mm to 200 mm
Potentiometric Linear Transducer CR18
Potentiometric Linear Transducer CR18
Displacement sensor in compact industrial design with spring-suspended probe tip or tip with roller bearing for 10 to 100 mm strokes
  • Compact industrial design
  • With spring-suspended probe tip or tip with roller bearing
  • Long lifespan and high accuracy
  • Linear potentiometer with almost infinite resolution
  • Measuring lengths from 10 mm to 100 mm
Inductive LVDT Linear Transducer EVT
Inductive Linear Transducer EVT
Robust miniature displacement sensor for small measuring strokes from 1.3 to 25 mm in difficult environmental conditions max. IP68/pressure-tight up to 30 bar
  • For difficult environmental conditions (max IP68 / 30bar)
  • Miniature design max. Ø9.5 mm
  • Very accurate measuring principle for small measuring strokes
  • Measuring strokes from ±0.65 to ±12.5 mm
  • Very long lifespan
  • Suitable for high dynamics
  • On request for temperature ranges up to 600°C
Inductive LVDT Linear Transducer EDC
Inductive Linear Transducer EDC
Compact LVDT displacement sensor with integrated electronics in two designs for small measuring strokes from 2 mm to 50 mm
  • Very accurate for small measuring strokes (2..50 mm)
  • In 2 designs (probe or loose core)
  • For harsh environmental conditions (up to IP67)
  • Very long lifespan
  • Suitable for high dynamics
  • Absolute analog signal
Inductive LVDT Linear Transducer MDC
Inductive Linear Transducer MDC
Robust and compact LVDT displacement sensor with integrated electronics in three designs and measuring length 2 mm to 200 mm
  • Very accurate measuring principle
  • For harsh environmental conditions (up to IP68)
  • Very long lifespan
  • Suitable for high dynamics
  • Absolute analog signal
Inductive LVDT Linear Transducer MAC
Inductive Linear Transducer MAC
Robust and compact LVDT displacement sensor in three designs and measuring lengths from 2 to 200 mm
  • Very accurate for small measuring strokes (2..200 mm)
  • In 3 designs (ball joints, probe, loose core)
  • For harsh environmental conditions (up to IP68)
  • Very long lifespan
  • Suitable for high dynamics
Inductive LVDT Linear Transducer RAC
Inductive displacement sensor RAC
Robust LVDT displacement sensor with AC voltage output in three designs with a wide temperature range and measuring lengths from 25 mm to 940 mm
  • In 3 designs (probe, guided push rod or loose core)
  • Wide temperature range -50°..125° C
  • Very long lifespan due to wear-free measuring principle
  • Suitable for high dynamics and oscillating movements
  • AC voltage
Optical Linear Transducer MSO
Incremental Linear Transducer MSO
Incremental linear transducer with high resolution up to 1 µm and output channels A, B for 12 to 50 mm strokes
  • High resolution up to 1 µm
  • Output channels A, B
  • Linedriver, Open Collector or TTL
  • High quality ball cage bearing
  • Easy mounting on shaft 8h6mm
  • Temperaturestable counting pulses because of glass scale
Optical Linear Transducer MSV
Incremental Linear Transducer MSV
Incremental linear transducer with TTL or Line Driver output in high resolution up to 5µm for 30 to 50 mm strokes
  • High resolution up to 5µm
  • For 30 mm or 50 mm stroke
  • accurate sleeve bearing
  • Easy mounting on shaft  8h6mm
  • Temperature stable counting pulses because of  glas scale
Magnetical Linear Transducer LHK
Contactless Hall-Effect Linear Transducer Series LHK
Magnetic linear transducer for 30 mm strokes is optimal for the detection of small, oscillating movements in automatically regulated systems
  • Long lifespan >100 million movements
  • No wear-induced degradation of signal quality
  • Reliable measurement even at vibration
  • Resolution: 12 bit
  • Analog output: 0,5..4,5 V 
  • Enables wire break detection and short-circuit detection
  • Supply voltage: 5 V
Guide for Probes
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What is a probe?

A probe is a displacement sensor that detects linear travels. It has a thread at one end of the push rod on which a probe head is screwed. With this probe, objects are mechanically "scanned" to determine the surface structure (thickness, height, depth). As a rule, a displacement sensor with spring return is used for this purpose. The spring presses the push rod together with the probe head against the object. Depending on the application, the position can thus be conveniently detected, e.g. for different heights or depths on a surface. For the mechanics and sensors of the measuring unit, this means: If the level on the object surface changes, the push rod is moved in the respective direction. This mechanical movement is "transmitted" from the push rod to a sensor element and converted into electrical signals.


Sensor technologies

We offer our probes with the following sensor technologies:

  • Linear potentiometer probes
  • Inductive LVDT probes
  • Incremental probes
  • Hall effect linear sensor probes

Depending on the technology used, the transducers supply analogue, absolute or incremental signals. For processing of the analogue signals, our IMA2-R measuring amplifiers for potentiometric and IMA2-LVDT for inductive sensors are available.

Inductive transducers can be used to determine both very small and precise measured values. In addition, these sensors are particularly suitable for use in adverse environmental conditions. We offer products with high IP protection, for high atmospheric pressure and for high temperature ranges.

The incremental displacement sensors with optoelectronic sensor technology measure virtually a real displacement. This is achieved by means of a glass measuring rod, which offers an extremely precisely manufactured line grating and thus achieves an accuracy of up to 1 µm. They are ideally suited for applications in measurement technology.

Our linear potentiometers are our all-rounders. In the sense that they are used whenever the application allows it. They offer the advantages of potentiometric technology and are available in a wide range of variants.


Actuating force and spring rate

The actuating force for probes with push rod spring return is determined at room temperature. A spring is a mechanical component whose properties can change depending on the ambient temperature and frequency of use.

It is often necessary to adjust the actuating force to the ambient conditions. In such cases, we offer the possibility of product optimization and adjust the actuating force or the spring rate.  

A note at this point: Please do not expose the probe to any mechanical shocks, because it may suffer mechanical damage. For example, do not allow retract uncontrollably.


Mounting instructions

For the mounting there are e.g. mounting blocks or clamping flanges. For length compensation between our LVDT sensors and the surface to be measured we also have core extensions in our program. Probes should be mounted at right angles to the measuring base plate or surface. MSO and MSV series sensors should be mounted on a flat surface.

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