ABS Sensors...still curious

From : marsh monster

Q: .. .. concerning checking abs sensors with an anolog meter and watching the needle sweep =3d=3d=3d=3d=3d=3d=3d=3d =3d=3d=3d=3d=3d=3d=3d=3d marshmonster asked .. how will he know if the signal is good jest curious. marshmonster =3d=3d=3d=3d=3d=3d=3d=3d=3d =3d=3d=3d=3d=3d=3d=3d=3d=3d tnloaswpraemnmcien5g@earthlink.net tom=a0lawrence replied .. well for the most part either a signal is there or it isnt. .. its a simple hall-effect sensor meaning that as the tooth of the tone ring passes by the sensor which has a permanent magnet in it an electrical current a pulse is generated. .. its this electrical pulse that youre looking to see on the meter. a better way to check the sensor is with an oscilloscope ecause youll be able to see the frequency of the pulses and see if theyre consistent. most people wont have a scope but most will have a voltmeter. =3d=3d=3d=3d=3d=3d=3d=3d=3d=3d=3d =3d=3d=3d=3d=3d=3d=3d=3d=3d=3d=3d so as long as the needle fluctuates then the sensor is good each time every time gauranteed no doubt what so ever and if thats true then why would it be better to use an oscilloscope still curious. marshmonster =3d=3d=3d=3d=3d=3d=3d=3d=3d =3d=3d=3d=3d=3d=3d=3d=3d=3d .