Re: balancing sensors
- From: "redbelly" <redbelly98@xxxxxxxxx>
- Date: 2 Nov 2006 08:38:39 -0800
lerameur wrote:
Hi all,
I am building a sensor cicuit, 2 sensors. Simple sensor with Vdd, GND
and Vout.
The too sensor are read by my microchip. but the voltage out of the two
sensor are not identical under the same conditions. What is the best
way to make them eual.
I tried using a 3 legged potentiometer (voltage divider). I did not
work well, one of the value with the highest resistance stays at the
same output no mater what input (light). maybe just putting one
resistor on one of the output sensor.
Any better ways ?
thanks
ken
IF the problem is from different sensitivity, you could try putting a
voltage divider on the sensor output that gives the larger signal.
The resistance of the divider should be:
1. Large enough so that it does not alter the sensor output
appreciably, and
2. Small enough so that the microchip does not alter it's output
appreciably.
Mark
.
- Follow-Ups:
- Re: balancing sensors
- From: lerameur
- Re: balancing sensors
- References:
- balancing sensors
- From: lerameur
- balancing sensors
- Prev by Date: Re: Is it a no-no to parallel power rectifier diodes?
- Next by Date: Re: Most powerful super-tweeter?
- Previous by thread: Re: balancing sensors
- Next by thread: Re: balancing sensors
- Index(es):
Relevant Pages
|
