well ladies and gentlemen i got my hands on a timing device for testing 0 - 100kph and stuff like that. its not that complicated, its like a stopwatch that is made to strap onto a car steering wheel but i reckon i can get it onto the bars. i plan on checkin the 0 - 100kph, 0 - 400m (quarter mile) and probably a 50 - 120kph roll on. if there's anythin you guys would like me to test, just let me know!!! i had considered testing 0 - 160kph (100mph) but it would just take too long and wouldnt look too impressive on paper!!!
how does the device measure speed? Is it some sort of accelerometer? Or do you have to start/stop it?
On the banks of Loch Ness Frink: Mmm-hai-hey, let's see now, we have the Monsterometer, Flipper-finder, Hoax-a-scope which is important for the looking and finding. On the banks of Loch Ness Frink: Oh my great good God! Gentlemen, your attention please. I am detecting a gigiantic amphibious life-form, it's 80 meters long and it's heading this way. Oh good glayven it's on my shoe. It's a small frog, just get off, just get off there, just get out of it, get out of it. Stupid machine, oh wait a minute, this isn't the Monsterometer, it's the Frog-Exaggerator Mm-hai.
Joking apart, such a thing does exist. An accelerometer or gravimeter is a device for measuring acceleration and the effects of gravity. It measures acceleration in Meters per second per second and then this data can be used to plot a graph showing the forces therof in real time.
Check this out for an add-on. I've heard that this is the schizznit. http://www.veypor.com/ edit: It might have been the biznotch, I don't recall.
i have to stop/start it, things didnt go quite as planned. the only times i managed to get were a few pityfully slow 0 - 100kph's. its also alot harder to operate this thing while caning the bike than i thought. i mounted it on the right hand grip, leaving just enough room for my hand. problem is this: to get up to 100kph quickly its faster to leave the bike in 2nd gear until the redline instead of changing into 3rd at around 90kph as you would during normal hard acceleration, say a 1/4 mile stretch. so once i reached that magical 100kph i was in a rush to try and shift up so the engine didint explode, and hit the tiny red button on the timer. so the times i managed were 7.53 and 7.60 up to 100kph, redlining the bike in 2nd. it took roughly a second longer if i shifted to 3rd. in addition to this, im not too great at fast launches but i reckon 7 seconds is very reachable if you can launch well. im also planning to do a sprocket change next time they need replacing, either 1 or 2 less teeth on the front if i can find them right sprocket in ireland. im not too sure if the times will be any better due to the extra gear change that would be needed.
how do you shift gears? It sounds like you do the slow way (clutch in, change gears, clutch out). If you do it right then it shouldn't affect your times much at all. Just put pressure up on the gear shift, then roll off the throttle a little and roll it back on. It should changes gears without any clutch (or very little) and should be a lot faster / smoother. you can then put the thing on the clutch side and operate it with your clutch hand if you want (as you won't be clutching the gears).
good thinkin casso!!! hadnt thought of that, ill check it out when i get the revice back off a mate, he's gonna do some testin of his own in his lancer gsr
They use accelerometers a lot in crash studies - it is much easier to measure acceleration than it is velocity. To measure velocity you need to account for the distance and time (time is easy, distance is difficult because the body in the car moves in strange ways and there is not uniform direction of travel). Accelerometers use the law (Newton's second I beleive) that to make any object/mass move or change direction/velocity there must be external forces acting on it. As said - you can measure the acceleration, and this must have a direct relationship with the forces acting on the object.
That would be the thing they use in formula 1 where they measure the Gforces acting on the driver, then? cool.
In a round about fashion, the Gravimeter is only a sensor relaying data to a telemetry suite. This data is then processed and can be manipulated to give readings ie- 'driver experianced 5.2g in the last corner' , which to a non-race engineer dont mean shite. Basically it means that the 'Driver' had forces of gravity multiplied by 5.2 acting upon his body during the corner. As has been mentioned before, Newton dictated that for every ACTION, there is an equal AND opposite RE-ACTION. In our case, Gravity trying to force our driver(re-action) from his car as technolegy is trying is best to force the car around the corner(action). Having worked within F1, you wouldn't belive the amount of data a car outputs during a race ( even more in scheduled testing) and will have a least two technitians monitering the engine alone making 'on the fly' or 'hot' adjustments to engine management.
jus thinkin casso, some of the problem was with tryin to press the start button at exactly the same time as carefully controlling the clutch for the best launch
