Fuel gauge enquiry
Hello,
I am a hardware developer working on a project related to fuel monitoring and I am a little confused about a couple of things, it would be really great if someone could help me out with it.
The fuel gauge in vehicles is attached to a sender unit. Between the fuel gauge that consists of a float and the needle you can see on the indicator unit, there is a damping circuit placed somewhere. What this damping unit does is damp the constant vibrations from the float which may come as a result of fuel sloshing. I want information regarding this damping circuit. I need to know the following:
1) Where exactly is this circuit placed?
2) The input voltage of the sender unit is 12V however, the fuel gauge would be damaged if 12V flows through the gauge directly. I have observed that the input on the gauge itself is from around 7V to 12V, there is a resistor placed in between. I want to know the value of this resistor in ohms.
3) There's roughly a 5V potential difference in the gauge, I need to know the current consumption of the fuel gauge.
If anyone can answer these questions, it would be super helpful.
TIA!
I am a hardware developer working on a project related to fuel monitoring and I am a little confused about a couple of things, it would be really great if someone could help me out with it.
The fuel gauge in vehicles is attached to a sender unit. Between the fuel gauge that consists of a float and the needle you can see on the indicator unit, there is a damping circuit placed somewhere. What this damping unit does is damp the constant vibrations from the float which may come as a result of fuel sloshing. I want information regarding this damping circuit. I need to know the following:
1) Where exactly is this circuit placed?
2) The input voltage of the sender unit is 12V however, the fuel gauge would be damaged if 12V flows through the gauge directly. I have observed that the input on the gauge itself is from around 7V to 12V, there is a resistor placed in between. I want to know the value of this resistor in ohms.
3) There's roughly a 5V potential difference in the gauge, I need to know the current consumption of the fuel gauge.
If anyone can answer these questions, it would be super helpful.
TIA!
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