Telemetry in motor racing ideas in context?
- 1 vote
Hi does anyone have a revision list for the ideas in context Telemetry in motor racing? I'm really stuck with what exactly to revise, my teacher didn't give me anything and I'm struggling to find anything useful on the internet.
- 5 votes
We were given a list of questions related to telemetry. If you can't answer some of the questions, just let me know and i'll give you the answers
1) Why is data transmitted to engineers in the pit lane?
2) Name the parts of the electromagnetic spectrum in order of increasing wavelength
3) Why does telemetry use microwaves and radio waves to transmit data as opposed to visible light or ultraviolet?
4) Give another use for radio waves and microwaves
5) Using diagrams and full sentences, explain the differences between analogue and digital signals
6) Draw the signal traces for analogue and digital signals
7) Give 2 reasons why some Formula 1 teams have switched from analogue to digital systems for their radio connection with the racing driver
8) How does time taken to stop affect the force acting on the object that is stopping?
9) How does a seat belt work as a safety feature?
10) How do crumple zones help reduce the force acting on the driver in a crash?
11)Describe and explain at least 2 ways that the HANS device helps reduce damage to the driver in a crash
12) Why is the forehead better suited than the top of the spine to taking the force during an impact?
Hope this helps!!
- 5 votes
Answers: 1) Data is transmitted to the engineers in the pit lane so that the engineers are up to date with all the vital information such as engine performance, oil pressure etc. (first paragraph in the article) 2) electromagnetic spectrum in order of increasing wavelength: gamma, x-ray, ultraviolet, visible light, infrared, microwaves, radio waves 3) Telemetry uses microwaves ad radio waves to transmit data as opposed to visible light/ ultraviolet, because they have longer wavelengths which means that they can diffract around corners, buildings, objects etc. (check P6 for more explanation). Ultraviolet is also ionizing radiation so it is definitely not ideal to use 4) Radio waves: TV, radios, mobiles, telephones, radio telescopes. Microwaves: microwaves, radars (in weather forecasting, ships, air crafts) 5) Can't paste an image Differences: analogue had a continuous range of values digital has only 2 values 0 and 1 noise/interference affects analogue signals more than digital signals Digital signals can be cleaned up (interference can be removed) by regenerators (if you have the textbook, page 171 helps) 6) Can't paste image (google analogue/digital signals) 7) Some Formula 1 teams have switched to digital systems as analogue signals pick up noise/interference which is amplified along with the messages so the original message is distorted. Digital signals also carry more information than analogue signals every second so it is more efficient 8) The longer the time taken to stop, the smaller the force acting on the object 9) A seat belt acts as a safety feature because when the car comes to a sudden stop, the belt becomes taut, preventing the driver from moving much and injuring themselves. it also spreads the force across the more sturdier parts of the body such as the rib cage 10) Crumple zones collapse easily so that the car doesn't come to an abrupt stop which increases the time taken for the change in momentum to occur, therefore greatly reducing the force acting on the driver 11) The HANS device helps reduce damage to the driver because it prevents their head from hitting the steering wheel. It also reduces the energy absorbed by the driver's head and neck ( last paragraph in the article) 12) The forehead is better suited than the top of the spine to taking force during an impact as it is more sturdier; the spine is very delicate and absorbing energy here could result in broken bones/ whiplash/ serious injuries. The forehead also has a much bigger area than the top of the spine so any force the forehead takes is spread out. Hope this helps!
- 1 vote
also revise how to use the equations like:
Kinetic energy = 1/2 x mass x velocity squared
Momentum = mass x velocity
Change in momentum = resultant force x time
Wave speed = frequency x wavelength
Speed = distance / time
In addition, look at wave modulation as my teacher thinks that could come up and distance time graphs
Hope this helps :)
- 0 votes
Please may i have the answers to check over my work? thank you very much this really helped!
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And another thing!! how analogue is converted to digital (and then back to analogue) :)
- 0 votes
why not have a look at p4 qnd p6 revision as these topics are covered in those units : )