Magnetic Measuring System iMS

Delivery Time
5 weeks
Номер детали
390255 5512C2
  • Measuring head with sensor in stable casing
  • Reliable, robust, good value
  • 2 channels, A and B, difference mode incremental RS 422 or difference mode analogue 1VSS
  • Incremental/digital resolution (see table)
  • Repeatability = ±1 increment
  • Magnetic tape on self-adhesive, stainless steel bearer tape

Magnetic measuring system (iMS)

The Magnetic measuring system has a decisive advantage compared with significantly more expensive optical systems 

General

The iMS contactless magnetic measuring system relies on scanning a magnetically coded measuring tape by means of a magnetically sensitive sensor and is suitable for detection of both linear and radial positions. A decisive advantage compared with significantly more expensive optical systems is provided by its insensitivity to  contamination caused by liquids, greases and dust. Our length measuring system is therefore a cost-effective alternative to other systems on the market.

Available sensor interfaces for further processing in the peripherals are, optionally, a pulse sensor with incremental RS422 AB output (Z optional) and a SIN/COS/(Z optional) sensor with voltage amplitude 1Vss.
 

Features

  • Measuring head with sensor in stable casing
  • Reliable, robust, good value
  • 2 channels, A and B, difference mode incremental RS 422 or difference mode analogue 1VSS
  • Incremental/digital resolution (see table)
  • Repeatability = ±1 increment
  • Magnetic tape on self-adhesive, stainless steel bearer tape

 

Optional

  •  Reference pulse



Subject to technical modifications without prior notice. 

Sensor

Mechanical specification
Casing Aluminium
Weight approx. 70g
Sensor lead PUR
Cable bending radius Bending radius of cable >40 mm
Electronic data
Supply voltage 4.9V - 5.1V (optional: 7V - 15V)
Current drain < 100 mA on no load
Output signals Standard RS422 A, /A, B, /B optional reference Z, /Z Option: SIN/ COS 1Vss +20%, -40%, Z und /Z right sign
Termination Terminating resistor = 120 Ohm between corresponding output signals, e.g. A - /A, at receiver
Sensor distance - magnetic tape 0.4 - 0.7 mm
Sensor resolution incremental

1 μm, 2.5 μm, 5 μm, 10 μm, 20 μm

Pulse interval 0.25 μs, 0.55 ns, 1 μs, 2 μs, 4 μs, 8 μs
maximum speed μs maximum speed < 10 m/s, higher on request
Repeat accuracy Incremental resolution ± 1 increment, plus errors due to angular tilting in the 3 sensor axes
Accuracy Measurement error 20 μm, plus errors due to angular tilting in the 3 sensor axes
Reference sequence optional: NSN (special order)
Ambient conditions
Operating temperature -5˚C to 80˚C
Storage temperature -20˚C to 100˚C
Air humidity (only sensor) 100%, dewing allowed

 

Normal measurement - magnetic tape

Operating temperature -5°C to 80°C
Material High quality stainless steel, coding bearer elastomer, self-adhesive
Thickness 1.3 mm ± 0.15 mm + bonding layer 0.13 mm, optional: 0.1 mm stainless steel tape + 0.2 mm bonding layer
Width 10 mm
Length up to 50m on roll
Pole pitch/PITCH 2 mm, i.e. north pole = 2 mm, south pole = 2 mm magnetic period = 4 mm
Number of tracks Single track, 10 mm wide Option: signal track 5 mm, reference track periodically 5 mm
Accuracy ± 0.04mm/m, at 20°C
Coefficient of expansion 17E-6 m/Kelvin
Ambient conditions
with no or minimum effect on the measurement norm Chemical resistance to contamination with motor oil, gearbox oil, ATF, hydraulic oil, kerosene, antifreeze,
Clorox disinfectant, turpentine, water, brine.
The materials listed have no or little effect on the long term stability of the measurement standard;
this depends, among other things, on the concentration, the temperature and the time of the contamination.
Please check your own case.
little/average effect on the measurement standard Jet petrol, carburettor fuels, heptanes, alcohols
strong effect on the measurement standard Aromatic hydrocarbons, ketones, inorganic acids
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