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Displacement sensors
Key features of inductive displacement sensors
Inductive displacement sensing systems
- measure contactless, basically free of wear, and with a high degree
of robustness,
- are ideal for static and highly-dynamic measurement of displacement
without repercussion on the sensed object,
- measure an absolute displacement, contrary to incremental systems
- feature a continuous curve with low hysteresis und quasi-infinite
resolution to the limit of system noise,
- are versatile and flexible.
Range of applications
Different designs and measuring techniques make the sensors a flexible
instrument for most linear measurement applications. Strokes from 1 mm to
1000 mm are available.
Features of MESSOTRON sensors
MESSOTRON produce sensors - in series or one-off, standard or customized:
- pressure resistant types up to 450 bar and spring-loaded (probes),
- linearity classes of 0.5% or 0.25%, partly even down to 0.1% (FSO),
- low temperature coeffcients, rugged design and long life,
- different connection options (connector or wire, axial or radial),
- sensors with pre-defined sensitivity; these ease sensor swop in
testing machines.
An overview of our inductive sensor line is available here:
(520 kB)
We offer a wide range of signal conditioning electronics for operation of
the inductive sensors.
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Standard
Standard inductive models with free core
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Pressure resistant
Sensors in pressure-resistant housing e.g. for hydraulic
applications (cylinders, valves)
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Probes
Sensors with guided and spring-loaded core
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DC/DC sensors
Sensors with integral signal
conditioner (CF amplifier)
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Customized accessories
Accessories for sensor mounting
and adjustment
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Measuring amplifiers
Inductive (position) sensors are passive devices that
require an active electronics - a measuring amplifier or signal conditioner
- based on carrier frequency technique.
Carrier frequency technique is the ideal way of operating inductive,
resistive and capacitive sensors. It features low noise susceptibility, high
signal stability and low temperature drift. The amplifier generates the
sensor excitation (e.g. 5 or 10 kHz) and converts the sensor return into a
proportional DC output.
MESSOTRON develops and produces a wide range of measuring amplifiers /
signal conditioners. These are available in various versions as module,
plug-in board, or in field or desktop housing.
Standard output signals are 10 V or 4 … 20 mA. Digital interfaces, being of
increasing importance, are also available as option. Our amplifiers are
designed for industrial applications and to work under harsh conditions in
testing fields. We pre-adjust the amplifiers ex-works for the sensor they
shall operate with. In-field adjustment is thus limited to minor tuning.
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Standard models
Our standard series as Euro-size board or IP65 field-case
version
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Miniature amplifiers
Economic, compact amplifiers in matchbox-size cases
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Rail-mount modules
1- or 2-channel amplifier modules for DIN-Rail mounting
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Indicators
Amplifiers as display unit (indicators), extendable by
plug-in interface cards
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Desktop models
single- or mutli-channel amplifier systems in desktop
lab- or 19"-housings, partly extendable for multi-purpose data acquisition
systems
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Customized specials
Special-purpose CF amplifiers, e.g. hand-held for mobile
service applications
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Power supplies
Power supplies for our CF amplifiers or general purposes
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Accessories / spare parts
Accessories and spare parts (e.g. amplifier modules)
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Proximity sensors
Analogue proximity sensors measure distances and
displacements of metal objects in the 40 mm range. Their eddy-current
technique allows contactless measurement when the object cannot be touched.
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Proximity sensors MNS
Proximity sensors are often used in switching
applications. They can also determine the analogue position of metallic
objects over a range of up to 20 mm. Using eddy current fields they provide
good position information in contactless applications without the need for
ultra-high accuracy.
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Proximity sensors MNH
Temperature resistant proximity sensors are used for
condition monitoring of machines and systems e.g. in power plants and
production areas. The distance can be up to 40 mm. Working on eddy-current,
metal objects in up to 40 mm distance can be ranged with high dynamics and
under high temperature conditions.
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Linear systems
To measure long distances requires optimised systems
to achieve the best result. Magneto-resistive, optical or potentiometric
systems allow to measure ranges of up to 500 m.
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Optisches Linearsystem MDD (Meterdrive)
Optical linear system MDD (Meterdrive) can cover ranges
of up to 500 m with resolution of up to 0,1 mm. A guided belt with a cut-out
pattern is sliding though a head with optical sensors, precisely recognising
the cut-outs.
Long range measurement in harsh environment puts special requirements.
The rugged optical MMD (Meterdrive) system is perfectly suited to
economically measure distances up to 500 m with resolution of up to 0,1 mm.
MMD is available as head-tape kit or as configured spring-loaded pull-out
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Magneto-resistive linear system MRP
The magneto-resistive technology allows accurate sensing
over small to large ranges (up to 100 m). A resolution of less than 10 µm
can be achieved. The measurement is put out in incremental format. Linear
incremental position sensor (magneto-resistive) for easy and accurate
displacement sensing over up to 100 m. |
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Draw-wire sensors
Draw-wire sensors detect and measure (quasi) linear
position and velocity using a flexible cable that unreels from a
spring-loaded spool. The sensors can be installed in minutes, fitted into
precarious or tight areas and they do not require perfectly parallel
alignment. They are particularly suitable for larger displacements of up to
42 m.
A broad range of models is available:
- measuring ranges up to 42 m,
- different cable types,
- compact plastic cases to rugged metal enclosures,
- various analogue and digital signal outputs.
An overview of our MSZ draw-wire sensors is available here:
(605 kB) |
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Rotary encoders
Rotary encoders are used in many kinds of harsh
applications to measure rotational, angular or transformed linear motion.
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Incremental encoders
sensing relative rotation over one revolution
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Other measuring components
Load-, Torque- and Pressure Transducers
Here some information on our new robust, economy sensor series. Contact us
for more information.
Our load cell catalogue:
(1959 kB)
Our pressure transducers catalogue:
(914 kB) |
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