angular speed and gyrometer

[skimask]

yes as i said my changing value is not large enough it is like only 2 volts variation a low angular speed (like my head moving) so i m losing 3volts

i ll try with the resistive divider but i heard it is very bad for the temperature drifting....??

and i have a reference voltage with my sensor (pin 3) it is like 2.4v very accurate do you think i can use that in a way as a vref+ and - (with diodes or something)

thank s anyways

resistive divider - I would think that as long as you have 3 resistors, same manufacturer, same age, same values, etc.etc., I would think that they'd drift fairly equally.

You may have a 2.4v Vref on your sensor, but you still have to be able to get a 'spread' at the PIC.

What's the fastest you think this sensor will ever turn (I guess the real question is how fast can you spin head?)?

[fefenin]

i really don t have any idea how fast i can spin my head but anyway ican t go quicker than the servo motor and i guess the signal is refresh every 20ms

because i just took the sensor without amplifiers the sensitivity is bad!

the bord had apparently an amplifiers just straight after the sensor mount in instrumentation amplifier (don t know the exact name in english!)

the sensor shows me very poor resolutions i ll probably need to buy a rc gyro and mesure the pulse between 1ms and 2ms and integrate it (maybe more acurate???)

i have to finished this project anyways so you ll see me later on i think!

thank's all for the moment! and again sorry for my english (not very proper)

[skimask]

i really don t have any idea how fast i can spin my head but anyway ican t go quicker than the servo motor and i guess the signal is refresh every 20ms

because i just took the sensor without amplifiers the sensitivity is bad!

the bord had apparently an amplifiers just straight after the sensor mount in instrumentation amplifier (don t know the exact name in english!)

the sensor shows me very poor resolutions i ll probably need to buy a rc gyro and mesure the pulse between 1ms and 2ms and integrate it (maybe more acurate???)

i have to finished this project anyways so you ll see me later on i think!

thank's all for the moment! and again sorry for my english (not very proper)

Sure, you could amplify the output with a simple op-amp circuit, no problem there, a hundred different ways to get a better resolution.

Signal refresh- that's probably the one going to servos, every 20ms, the capability to read the sensor with a PIC is far greater, good enough for what you're thinking about. I'd roll with the project until it worked, I wouldn't get rid of it yet.
Your english is good enough for me, most of the time anyways