1 / 10

Automotive Applications of Level Sensors

Automotive Applications of Level Sensors. Group: Calcium δ Eric Black Daniel Carter. Introduction. Level sensors are not only used in Industrial and Chemical Applications Common household items use them as well

lali
Download Presentation

Automotive Applications of Level Sensors

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Automotive Applications of Level Sensors Group: Calcium δ Eric Black Daniel Carter

  2. Introduction • Level sensors are not only used in Industrial and Chemical Applications • Common household items use them as well • These sensors range from simple mechanical devices to electronic or radiating tools

  3. Level Sensors on Cars • Cars contain two of the main kinds of level sensors • Float sensor • Visual sensor • The float sensor is found in the gas tank, whereas there are a few visual sensors under the hood of the car

  4. Gas Tank Float Sensor • Initially, the float is at top of tank • The attached wiper is closer to negative side of terminal • Less resistance • More current • Hotter Heating coil • Pulls Bimetallic strip so dashboard gauge displays full

  5. Gas Tank Float Sensor • As fuel leaves tank, float lowers • Wiper moves further down resistor • More resistence • Less current • Coil cools • Strip pulls with contracting metal

  6. Gas Tank Float Sensor • Finally, after float hits bottom of tank, wiper is pulled to far right • Highest resistance • Lowest current • Coolest heating coil • Strip pulled gauge to empty

  7. Gas Tank Float Sensor • Pros: • Relatively simple mechanical design • Good for estimating level of fuel • Cons: • Inaccurate when: • Tank is completely full • Tank is near empty • Doesn’t measure precise tank volume

  8. Level Gauges Under the Hood • Under the hood of a car, there are ways to check the level of various other fluids • Oil • Transmission • Coolant / Antifreeze • Windshield washer fluid • These are checked using visual level gauges

  9. Dipsticks • Dipstick is inserted into engine • Then removed with oil residue on tip • Tip is marked with “full” and “add oil” markings • Checking transmission fluid is similar • Similary to the fuel tank float meter: • Good for estimating fluid level • Not a precise measurement of volume

  10. Container Markings • Small tanks under the hood containing windshield washer fluid and coolant have markings on the sides • Only good for level estimation • Can’t measure precise fluid volume

More Related