NSE-5310_07 Datasheet, PDF (9/22 Pages) ams AG – Miniature Position Encoder with Zero Reference and IC Output

NSE-5310
Datasheet - Detailed Description
Figure 4. Magnetic Field Strength Used to Indicate End of Travel
Magnet Field Strength Used to
Indicate End of Travel
Normal Field
Strength in
Travel Range
Magnet Field Strength
“Magnitude”
N
N
N
N
S
S
S
S
Reduced Field Strength
in Over-Travel Range
Normal Magnitude in Travel Range
Direction of Travel
Reduced Magnitude Detected
Direction of Travel is Reversed
Returns Home last pole crossing
Angle (ϕ) = 0
Travel Range
Over Travel
1 ½ poles either end
Hall Sensor Array
TSSOP Package
Hall Array Center Line
A system controller and user-supplied flash memory with the TRACKER NSE-5310 provide for long-range absolute position information that is
retained during sleep mode or power-down.
Figure 5. Example of Absolute long-range position information with use of external flash memory and controller
S
S
S
S
N
N
N
N
Seiko Magnets
2 mm Pole Pair
OOvveer rtratrvaevl el
aareraeausuesded
Zero Ref
1 - 1/2 poles
From End
6000
Cummulative
TRACKER
Readings
(microns)
4000
2000
0
2000 ₀
1500
TRACKER
Readings ¹⁰⁰⁰
(microns) ₅₀₀
0
0
6 mm working range
1
2
3
4
5
1
2
3
4
5
Zero Ref
1 - 1/2 poles
From End
6
6
Pole Crossings
System Controller
TrTarcakcsksPoPloeleCCrorossssiningg ((00ttoo66) )anadnd
abasbosluotlueteppoossitiitoionn wwiitthhininaapoploelepapirair
toto00..55 mmiiccrroonnss, ,202000mmicircornonrarnagnege
Flash Memory
Pole crossing retained in Us-erSupplied Flash
Memory during sleep mode or shut down
for retrieval during power up
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Revision 1.5
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