www.austrimaicrosystems.com

Revision 0.1

1 - 6

1 General

This specification defines the dimensional and magnetic properties of a multipole magnetic strip for use with the

AS5306 magnetic linear motion and off-axis rotary angle encoder.

Material: Strontium ferrite bonded

2 Dimensional Specification

Parameter

Symbol

Min

Typ

Max

Unit

Note

Strip Length

L

300±2

mm

Active length = 300

Strip Width

W

10±0.2

mm

Active width = 10mm

Strip Thickness

T

1.3±0.

15

mm

1mm rubber bonded magnet on

0.3mm stainless steel strip

Thermal Expansion

17

x10

Density

3.5

1.43

3.65

4.64

3.8

7.85

g/cm

3

magnetic rubber

stainless steel

Delivery

Single cut pieces without adhesive, rolls of 25m, 50m (up to 100m max.)

3 Magnet Specification

Parameter

Symbol

Min

Typ

Max

Unit

Note

Pole Length

1.20

mm

Results in pole pair length of 2,40mm

(250 poles @ 1.2mm)

Pole Length Deviation

1

1.5

% of

Measured at Bz=0,

all poles within

active area

Amplitude Variation

±10

All poles within active area

Number of Poles

250

poles

of the strip

Resolution

Res

15

µm

AS5306 @ incremental output

Magnetic Field Amplitude

@ 0.4mm Distance

mT

Vertical component of the magnetic

field strength in the center of the strip

at 25°C

Magnetic Field Temperature

Drift

-0.2

%/K

AS5306

Magnetic Multipole Strip MS12-250

Pole Length 1.2mm, 250 Poles

Magnet Specification