Re: [Paparazzi-devel] glow / gasoline sensor

[Andre Devitt]

I made a quick module for floscan 200 series flow transducers for STM32 based autopilots and can post if there is utility. 

Should not be very difficult to modify code for other pulse counting based flow sensors. The code just triggers an interrupt routine on voltage level transition on a GPIO (in the case of the floscan 201 a rising transition from ground to 5V) and increments a counter.

The code will not run on TWOG as it's based on the LPC2148 a different processer than some newer cortex m3 (stm32) based autopilots, but the meat of the code is really just setting up the interrupts which I think has been discussed earlier in the thread and has been done on the LPC2148 in other modules.

Andre.

On Wed, May 22, 2013 at 12:57 AM, Marius Pfeffer <address@hidden> wrote:

Maybe your sensor doesn't works well with the preasure or the flow of the gasoline. Check this, I'm sure there is the problem.

Another method is to use a perialistic pump (dispense pump) with and rotary encoder and buffer tank bevore the engine. This is maybe the most percise way. It fills the buffer tank until a sensor stops it because the buffer is full.
And the pump gets only startet when the buffer reched an certain minimum level.

Am 22.05.2013 06:37 schrieb "Prof. Dr.-Ing. Heinrich Warmers" <address@hidden>:

Hi,
then count the fule flow, or make a model for throttle to flule comsumtions.
http://www.conrad.de/ce/de/product/150391/Durchflussmesser-Flow-Meter-FCH-m-POM-LC-001-35-lmin-BIO-TECH-eK-FCH-m-POM-LC-mit-Duese-1-mm-001-10-lmin
Heinrich

Eduardo lavratti schrieb:

He graupnet sensor work line the hitec and frsky sensor.
Its very imprecise.

I need a precise sensor to use in a big UAV.

---

Date: Tue, 21 May 2013 16:32:02 +0200
From: address@hidden
To: address@hidden
Subject: Re: [Paparazzi-devel] glow / gasoline sensor

Hi,
look for model supplier  like  Graupner  they have a flue sensor for the back channel of the RC transmitter

Eduardo lavratti schrieb:

Hello, any know  / used a good flow sensor to be used fuel level ?
I think in use a flow sensor and integrate the output of the sensor to get the used combustible.

i need a precise gas meter because it be used in a 3m uav.

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