Intergrated Rotational Speed Sensor

General Description

The GMRS-01sensor detects rotational speed of ferrous gear wheels. The sensor consists of a magnetoresistive sensor element, a signal conditioning integrated circuit and a ferrite magnet. The frequency of the digital current output signal is proportional to the rotation speed of the target wheel. The open collector (OC) output is highly flexible in the design of subsequent conditioning eletronics.

Features
◆Wide air-gap ◆Wide operating temperature range ◆Insensitivity to vibration	◆Wide operating frequency range ◆High reliability and excellent cost-effectiveness

Reference Data

Symbol	Parameter	Min.	Typ.值	Max.	Unit
VCC	DC supply voltage	4.5	5	16	V
ICC	DC supply current	4	10	14	mA
VCEsat	OC saturation voltage			1	V
dmax	Maximum sensing distance	2.4	2.9		mm
ft	Operating tooth frequency	0		25000	Hz
Tamb	Ambient operating temperature	-40		150	ºC