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NSE-5310

Data Sheet - D e t a i l e d D e s c r i p t i o n

Figure 4. Magnetic Field Strength Used to Indicate End of Travel

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

Magnet Field Strength Used to

Indicate End of Travel

N

NN

Normal Field

Strength in

Travel Range

S

N

S

S

S

Travel Range

Over Travel

1 ½ poles either end

Reduced Field Strength

in Over-Travel Range

Magnet Field Strength

“Magnitude”

Returns Home last pole crossing

Normal Magnitude in Travel Range

Direction of Travel

Reduced Magnitude Detected

Direction of Travel is Reversed

Hall Sensor Array

Hall Array Center Line

TSSOP Package

Angle (

ϕ) = 0

Seiko Magnets

2 mm Pole Pair

S

NN

N

N

S

S

S

6 mm working range

Zero Ref

1 - 1/2 poles

From End

System Controller

Tracks Pole Crossing (0 to 6) and

absolute position within a pole pair

Flash Memory

Pole crossing retained in User

- Supplied Flash

Memory during sleep mode or shut down

for retrieval during power up

Over travel

area used

Pole Crossings

TRACKER

Readings

(microns)

0

500

1000

1500

2000

01

23

45

6

0

2000

4000

6000

01

23

4

5

6

Cummulative

TRACKER

Readings

(microns)

Zero Ref

1 - 1/2 poles

From End

S

NN

N

N

S

S

S

1

System Controller

Tracks Pole Crossing (0 to 6) and

absolute position within a pole pair

to 0.5 microns,

2000 micron range

Flash Memory

Pole crossing retained in User

- Supplied Flash

Memory during sleep mode or shut down

for retrieval during power up

Over travel

area used

TRACKER

Readings

(microns)

0

500

1000

1500

2000

01

23

45

6

0

2000

4000

6000

01

23

4

5

6

Cummulative

TRACKER

Readings

(microns)

1