Length measuring sensor iMS
Highlights
- 2 channels A and B
- Differential operation incremental RS 422 or differential operation analogue 1VSS
- Resolution incremental / digital
- Repeat accuracy = ±1 Inc
Features
- Measuring head with sensor in sturdy housing
- Reliable, robust, inexpensive
- Magnetic tape on self-adhesive, stainless steel carrier tape
Length measuring sensor iMS
The non-contact magnetic length measuring system iMS, which precisely measures both linear and radial positions by scanning a magnetically coded measuring tape using a highly sensitive sensor, is a cost-effective alternative to conventional optical measuring systems and is characterised by its insensitivity to contamination such as liquids, grease and dust.
Our length measuring system offers you maximum reliability and robustness at an attractive cost. It is equipped with a sturdy housing that provides optimum protection for the sensor. Choose between two available sensor interfaces: A pulse encoder with incremental RS422 output AB (Z optional) or a SIN/COS encoder (Z optional) with a voltage amplitude of 1Vpp for further processing in your peripherals.
The system has two channels A and B and supports both incremental RS422 differential operation and analogue 1VSS differential operation. The resolution is incremental/digital with an impressive repeat accuracy of ±1 Inc.
Another highlight is the magnetic tape, which is attached to a self-adhesive, rust-proof steel carrier tape - for simple and durable installation.
Ordering example
Magnetic length measuring system iMS-I in housing without Z-track Resolution 5 μm,
Edge distance 0.55 μs, travel speed 5.25 m/s
Item no.: 390255 5512C2
Magnetic tape on self-adhesive, stainless steel carrier tape (2 mm pole pitch, 10 mm wide, 1.3 mm thick)
Item no.: 563150
Sensor
| Mechanical data | |
|---|---|
| Housing | aluminium |
| Weight [g] | approx. 70 |
| Sensor cable | PUR |
| Bending radius of the cable [mm] | >40 |
| Electronic data | |
|---|---|
| Power supply [V] | 4.9 - 5.1 (optional: 7 - 15) |
| Current consumption without load [mA] | <100 |
| Output signals | Standard RS422 A, /A, B, /B optional reference Z, /Z Option: SIN/ COS 1Vss +20%, -40%, Z and /Z right sign |
| Termination | Termination resistor = 120 Ohm between associated output signals, e.g. A - /A, on the receiver |
| Distance sensor - magnetic tape [mm] | 0,4 - 0,7 |
| Incremental sensor resolution [µm] | 1, 2.5, 5,10, 20 |
| Pulse - distance [us] | 0.25, 0.55, 1, 2, 4, 8 |
| Maximum speed [m/s] | <10, greater on request |
| Repeat accuracy [1 increment] | Incremental resolution ± 1, plus error due to angular tilt in the 3 sensor axes |
| Accuracy [µm] | Measurement error 20, plus error due to angular tilt in the 3 sensor axes |
| Reference sequence | optional: NSN (special request) |
| Ambient conditions | |
|---|---|
| Storage temperature [˚C] | -20 to +100 |
| Humidity (sensor only) [%] | 100, condensation permitted |
Magnetic tape
| Measuring standard | |
|---|---|
| Operating temperature [˚C] | -5 to +80 |
| Material | Stainless steel carrier tape, Coding carrier elastomer, self-adhesive |
| Thickness [mm] | 1.3 ± 0.15 + adhesive layer 0.13, optional: stainless steel cover strip 0.1 + adhesive layer 0.2 |
| Width [mm] | 10 |
| Length [mm] | up to 50 |
| Pole pitch/ PITCH [mm] | magnetic period = 4 North pole = 2, south pole = 2 |
| Number of tracks | Single track, 10 mm wide Option: signal track 5 mm, reference track periodic 5 mm |
| Accuracy [mm/m] | ±0.04 up to 50m length, at 20°C |
| Expansion coefficient | 17 x 10 exp. -6 m / Kelvin |
| Ambient conditions | |
|---|---|
| with no or little effect on the measuring standard | Chemical resistance to contamination with engine oil, gear oils, ATF, hydraulic oil, paraffin, antifreeze, Clorox cleaning agent, turpentine, water, salt water. The specified substances have no or little effect on the long-term resistance of the measuring standard, this depends, among other things, on the concentration, temperature and exposure time of the contaminants. Please check your application. |
| weak / medium effect on the measuring standard | Jet petrol, carburettor fuels, heptane, alcohols |
| Strong effect on the measurement standard | Aromatic hydrocarbons, ketones, inorganic acids |
Length measuring sensor iMS
Your contact
Thank you for your interest in our product. We are very pleased. Please write to us or call us for further information.
