הוא שקרן ורמאי ולאף אחד לא איכפת!!! (כותרת היסטרית שמתייחסת למחוג הדלק)

[danniel]

, המידע האנלוגי הנמסר מהפוטנציומטר למחשב+

אני מבין שההסברים שלי לא שכנעו אותך , אולי האתר הניצחי הבא יכניס לך קצת דעת:

 

http://auto.howstuffworks.com/fuel-gauge1.htm

 

 

The Sending Unit

 

The sending unit is located in the fuel tank of the car. It consists of a float, usually made of foam, connected to a thin, metal rod. The end of the rod is mounted to a variable resistor. A resistor is an electrical device that resists the flow of electricity. The more resistance there is, the less current will flow. In a fuel tank, the variable resistor consists of a strip of resistive material connected on one side to the ground. A wiper connected to the gauge slides along this strip of material, conducting the current from the gauge to the resistor. If the wiper is close to the grounded side of the strip, there is less resistive material in the path of the current, so the resistance is small. If the wiper is at the other end of the strip, there is more resistive material in the current's path, so the resistance is large.

[מרק10]

לא ברורה לי הארה שלך.

מה שכתבתי דומה למה שרשום בקישור שמסרת.

 

 

Microprocessor-controlled Gauges

 

Some newer cars have a microprocessor that reads the variable resistor in the tank and communicates that reading to another microprocessor in the dashboard. Carmakers can tinker with the gauge movement a little -- they can compensate for the shape of the tank by comparing the float position to a calibration curve. This curve correlates the position of the float with the volume of fuel left in the tank. This allows the gauge to read more accurately, especially in cars with complicated gas-tank shapes.

[danniel]

התכוונתי להבדל המושגים ברכב: פוטנציומטר וראוסטט.

[מרק10]

לא השתכנעתי ואני נשאר בדעתי, העיקר ששנינו מבינים את הנושא וגם האחרים.