http://www.8051projects.net/ Learn to make simple microcontroller projects, pic, 8051, avr and arm projects. download 8051 projects, tutorials, libraries, sample codes. join the microcontroller discussion forum and ask doubts regarding electronics. the best source for 8051 over internet. en-gb 2008 Rickey's World contact@nospam.com (Ajay Bhargav) contact@nospam.com (Ajay Bhargav) Wed, 07 Jan 2009 19:00:58 -0800 Wed, 07 Jan 2009 19:00:58 -0800 http://backend.userland.com/rss e107 (http://e107.org) 60 Search 8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes query http://www.8051projects.net/search.php http://www.8051projects.net/forum-t9853.html Hi to all,
For my one of the project i want to continuosly measure the level of the Fuel or oil ( Liquid) in Tank. Can anyone help me in this regard.

Regrads
Sanath
Bangalore]]> Sun, 01 Jun 2008 19:42:46 -0700 http://www.8051projects.net/forum-t9853.html http://www.8051projects.net/forum-t9853.html well, ur application is tricky as the conventional (and simplest method) of level measurement by dipping two electrodes in the liquid at different levels doesnot hold good as the liquid in question is highly inflammable and the method requires to pass some current(ac or dc) through the liquid.
So, u have to go for the potentiometric type of level measurement which involves considerable mechanical arrangement which is similar to the one used in your toilet flush tank. Just as the float in the tank rises with the level in ur tank and shuts off the inlet tap , u have to connect a resistance potentiometer to the other end of the float so that the resistance of the pot varies with the level. Now just convert the resistance variation into voltage and feed it to the processing circuit.
Hope u got the idea.]]> contact@nospam.com (Ajay Bhargav) Mon, 02 Jun 2008 02:10:47 -0700 http://www.8051projects.net/forum-t9853.html http://www.8051projects.net/forum-t9853.html u can make one yourself..]]> contact@nospam.com (Ajay Bhargav) Mon, 02 Jun 2008 03:22:56 -0700 http://www.8051projects.net/forum-t9853.html http://www.8051projects.net/forum-t9853.html Thanx so much for the valuable information.

Actually my requirements is that " Fuel level and temperatuer Monitoring and controlling system". Here I want to continuosly measure the fuel level as well as fuel temperature from the vehicle or any system and continulsy transmit this information to the owner through the mobile using GSM Technology. and if temperature exceeds that the critical value it has to shutdown the whole system with the help of relay mechanisms .For this I am loking out for the Sensor or some kind of probes that we can keep inside the fuel tank. Can anyone help me in this.

Regards
Sanath
Bangaore

" You get best out of others when you give best of yourself "
]]> contact@nospam.com (Ajay Bhargav) Mon, 02 Jun 2008 16:21:25 -0700 http://www.8051projects.net/forum-t9853.html http://www.8051projects.net/forum-t9853.html
chenna gidhira ?

about fuel level indicator you can make a simple four level indicator using CD4066 CMOS analog switches. but these probes need to be dipped in fuel which is the scary part, should some part smoke you'll be engulfed with fire

you can have four levels : hi,med,low,reserve


Arun]]> contact@nospam.com (Ajay Bhargav) Mon, 02 Jun 2008 23:06:20 -0700 http://www.8051projects.net/forum-t9853.html http://www.8051projects.net/forum-t9853.html ]]> contact@nospam.com (Ajay Bhargav) Tue, 03 Jun 2008 04:12:04 -0700 http://www.8051projects.net/forum-t9853.html