Hi all,
I have a problem that I hope you can help me with. The fuel level sender in my car works on the same principle as a variable resistor - when the tank is full, it registers 0Ω, when empty it registers at 360Ω, and varies in between depending on the level of the tank.
However, the replacement fuel gauge that I want to use only reads from 0Ω full to 180Ω empty.
I need to set up a resistor network that effectively halves the value of the 0-360Ω variable resistor at ANY point in its range - within reason of course. If I simply put a 360Ω resistor in parallel, the results are accurate at each end, but the error gets bigger towards the middle of the range, so I need something a little more complex.
Any help would be appreciated.
I have a problem that I hope you can help me with. The fuel level sender in my car works on the same principle as a variable resistor - when the tank is full, it registers 0Ω, when empty it registers at 360Ω, and varies in between depending on the level of the tank.
However, the replacement fuel gauge that I want to use only reads from 0Ω full to 180Ω empty.
I need to set up a resistor network that effectively halves the value of the 0-360Ω variable resistor at ANY point in its range - within reason of course. If I simply put a 360Ω resistor in parallel, the results are accurate at each end, but the error gets bigger towards the middle of the range, so I need something a little more complex.
Any help would be appreciated.