Shopping on line can be easy, simple and save you lots of money. It can also take a lot of your time, frustrate you, and result in unwanted purchases. Now the same can be said for regular high street shopping, but with the vast opportunity presented by the Internet it will pay you to spend a few minutes reading this and understanding how to better optimize your Fuel Gauge shopping experience:
1. Compare - without doubt the biggest advantage that the Fuel Gauge offers shoppers today is the ability to compare thousands of Fuel Gauge at a time. This is a great thing, but not necessarily all the time! Too much can be daunting at times so take advantage of the great comparison sites and where possible let them do the hard work for you.
2. Research - if it has been said it will be on the internet. Ignorance is no longer a justifiable reason for buying the wrong thing. Take the time to research in detail everything that you could possible want to know about
3. Testimonials - don't know anybody that has bought a Fuel Gauge? Wrong! If the Fuel Gauge is good the internet will let you know. Use the Internet as a friend and get testimonials before you buy.
4. Questions - Got a question about Fuel Gauge then search the Forums, FAQ's, Blogs etc. Don't be afraid to ask .....
5. Reputation - Never heard of the company selling Fuel Gauge? Don't worry, no reason why you should know every company in the world, but you know someone that does! Use the internet to find out what people are saying about Fuel Gauge and build up a picture of their reputation for sales, returns, customer service, delivery etc.
6. Returns - still worried that even after all of the above your Fuel Gauge wont be what you want? Check out the returns policy. There is so much competition now that someone, somewhere is bound to offer the terms that you are comfortable with.
7. Feedback - happy with your Fuel Gauge then let people know, after all you are depending on others people input in your buying decision, so why not give a little back.
8. Security - check for the yellow padlock on the Fuel Gauge site before you buy, and the s after http:/ /i.e. https:// = a secure site
9. Contact - got a question about Fuel Gauge, or want to leave a comment then check out the sites contact page. Reputable companies have them and respond.
10. Payment - ready to pay for your Fuel Gauge, then use your credit card or PayPal! Be aware of companies that don't accept them, there may be genuine reasons but given the huge amount of choice you have when buying online there is no reason at all not to buy via credit card or PayPal.
A
fuel gauge (or
gas gauge) is an
Measuring instrument used to indicate the level of fuel contained in a tank. Commonly used in cars, these may also be used for any tank including underground storage tanks.
As used in cars, the gauge consists of two parts:
- The sender unit
- The indicator
The sending unit usually uses a float connected to a
Resistor. When the tank is full, the resistor is set to its low resistance value. As the tank empties, the float drops and the slides a moving contact along the resistor, increasing its resistance, finally reaching its highest value when the tank is empty. In addition, when the resistance is at a certain point, it will also turn on a "low fuel" light on some vehicles.
Meanwhile, the indicator unit (usually mounted on the instrument panel) is measuring and displaying the amount of electrical current flowing through the sending unit. When the tank level is high and maximum current is flowing, the needle points to "F" indicating a full tank. When the tank is empty and the least current is flowing, the needle points to "E" indicating an empty tank.
The system is
fail safe; a fault that opens the electrical circuit causes the indicator to show the tank as being empty (which will provoke the driver to refill the tank) rather than full (which would allow the driver to run out of fuel with no prior notification).
Systems that measure large fuel tanks (including underground storage tanks) may use the same electro-mechanical principle or may make use of a pressure sensor, sometimes connected to a Mercury (element)
manometer.
Large
Fixed-wing aircraft use a different fuel gauge design principle. An airplane has a few (around 30 on an A320) low voltage capacitors where the fuel can go between them. At different fuel levels there are different capacitances (i.e. capacitance proportional to the height of fuel) and therefore the level of fuel can be determined. For the aircraft pitch and roll attitudes the fuel computer works out how much fuel there is (slightly different on different manufacturers). In total this is more than 99% accurate.
See also
A
fuel gauge (or
gas gauge) is an Measuring instrument used to indicate the level of fuel contained in a tank. Commonly used in cars, these may also be used for any tank including underground storage tanks.
As used in cars, the gauge consists of two parts:
- The sender unit
- The indicator
The sending unit usually uses a float connected to a
Resistor. When the tank is full, the resistor is set to its low resistance value. As the tank empties, the float drops and the slides a moving contact along the resistor, increasing its resistance, finally reaching its highest value when the tank is empty. In addition, when the resistance is at a certain point, it will also turn on a "low fuel" light on some vehicles.
Meanwhile, the indicator unit (usually mounted on the instrument panel) is measuring and displaying the amount of electrical current flowing through the sending unit. When the tank level is high and maximum current is flowing, the needle points to "F" indicating a full tank. When the tank is empty and the least current is flowing, the needle points to "E" indicating an empty tank.
The system is fail safe; a fault that opens the electrical circuit causes the indicator to show the tank as being empty (which will provoke the driver to refill the tank) rather than full (which would allow the driver to run out of fuel with no prior notification).
Systems that measure large fuel tanks (including underground storage tanks) may use the same electro-mechanical principle or may make use of a pressure sensor, sometimes connected to a
Mercury (element) manometer.
Large
Fixed-wing aircraft use a different fuel gauge design principle. An airplane has a few (around 30 on an A320) low voltage capacitors where the fuel can go between them. At different fuel levels there are different capacitances (i.e. capacitance proportional to the height of fuel) and therefore the level of fuel can be determined. For the aircraft pitch and roll attitudes the fuel computer works out how much fuel there is (slightly different on different manufacturers). In total this is more than 99% accurate.
See also
