KMI16SLASH1SLASHV3PX datasheet(6/12 Pages) PHILIPS

6 / 12 page

2000 Sep 05

Philips Semiconductors

Product speciﬁcation

Integrated rotational speed sensor

KMI16/1

APPLICATION INFORMATION

Mounting conditions

The recommended sensor position in front of a gear wheel

is shown in Fig.11. The distance ‘d’ is measured between

the sensor front and the tip of a gear wheel tooth. The

KMI16/1 senses ferrous indicators like gear wheels in the

‘y’ direction only (no rotational symmetry of the sensor);

see Fig.2. The effect of incorrect mounting positions on

sensing distance is shown in Figs 7, 8 and 9. The

symmetrical reference axis of the sensor corresponds to

the axis of the ferrite magnet.

Environmental conditions

Due to eddy current effects the sensing distance depends

on the tooth frequency (see Fig.13). The influence of the

gear wheel module on the sensing distance is shown in

Fig.12.

Gear Wheel Dimensions

Note

1. For conversion from ASA to DIN: m = 25.4 mm/DP;

p = 25.4 mm

× CP.

SYMBOL

DESCRIPTION

UNIT

German DIN

number of teeth

−

diameter

module m = d/z

pitch p =

π× mmm

ASA; note 1

pitch diameter (d in inch)

inch

diametric pitch DP = z/PD

inch−1

circular pitch CP =

π/DP

inch

handbook, full pagewidth

MBL242

2.08

± 0.1

∅

104

± 0.05

0.5

× 45o

R 0.5

−0.1

0.5

× 45o

0.5

× 45o

0.5

× 45o

∅ 32

∅ 8H7

0.1 A

0.05 A

2.080

± 0.01

10.00

8.00

3.50

6.535

± 0.01

see detail Z

detail Z

Fig.6 Gear wheel dimensions.

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