You keep telling us how great these cameras are (which no-one has debated) and yet you haven't yet answered my questions about how they are used to detect motors or batteries. So, again, when are/should they to be used in order to ensure the motor or battery are at a different temperature to the rest of the bike and therefore detectable?
in terms of it being to hard to check... why not just check the top grouping riders, say the top 10 in each group, or if thats too many people then the podium finishers for each group. compulsary inspection for the bike ridden.
same should be done for meds.
THIS. question is though, if they turn the motor off before rolling into T2, can you still see it light up?
I would lay money on it, you can practically see down to a fraction of a degree, I would say somthing would stay noticable for a fair while, especially as you can prety much see " thorogh" somthing to the core temp so wind would only cool the outer frame and the centre would still show as hot.No you cannot see through something. The camera is detecting light reflected from the surface of the object you're photographing or filming. The only difference between this and a normal camera is the wavelength of the light involved. The camera is observing infra red rather than visible spectrum light and then translating it to visible spectrum wavelengths to display it so that we can see it.
It would take some time for heat to dissipate after you stopped running a motor. The time required for a thermal camera to become difficult or useless would depend on a number of factors. Primarily, power usage, motor efficiency, battery impedance, speed controller efficiency, thermal mass of components, means of cooling (you could use heat sinks, thermal adhesives, water cooling, etc to accelerate cooling), ambient temperature, solar gain, frame colour and reflectivity, wind speed and direction, cycling speed, humidity, camera sensitivity, frame uniformity.......I'm sure there's a few more.
Have you ever taken an infra red photo of a bike straight after a ride? I haven't, but I'm curious how uniform the frame temperature would be, especially how it would differ from bike to bike and with changes in weather or course profile. While a camera can certainly detect differences of fractions of a degree, looking for differences at a very small scale means there will be a lot more noise in the signal and it may be far less obvious what you're seeing. My guess is a long course racer could use a motor mid bike leg and leave the motor and battery to cool for an hour or more before T2, dribble some sweat and water on the frame and it may not be detectable at all. That's without even getting into any fancy cooling systems or heat camouflage paint schemes.
JRC wrote:
agreif wrote:
JRC wrote:
thermal camera's are getting pretty cheap, in fact the latest CAT phone has a themal camera, in terms of it being to hard to check... why not just check the top grouping riders, say the top 10 in each group, or if thats too many people then the podium finishers for each group. compulsary inspection for the bike ridden.
same should be done for meds.
THIS. question is though, if they turn the motor off before rolling into T2, can you still see it light up?
I would lay money on it, you can practically see down to a fraction of a degree, I would say somthing would stay noticable for a fair while, especially as you can prety much see " thorogh" somthing to the core temp so wind would only cool the outer frame and the centre would still show as hot.
It would take some time for heat to dissipate after you stopped running a motor. The time required for a thermal camera to become difficult or useless would depend on a number of factors. Primarily, power usage, motor efficiency, battery impedance, speed controller efficiency, thermal mass of components, means of cooling (you could use heat sinks, thermal adhesives, water cooling, etc to accelerate cooling), ambient temperature, solar gain, frame colour and reflectivity, wind speed and direction, cycling speed, humidity, camera sensitivity, frame uniformity.......I'm sure there's a few more.
Have you ever taken an infra red photo of a bike straight after a ride? I haven't, but I'm curious how uniform the frame temperature would be, especially how it would differ from bike to bike and with changes in weather or course profile. While a camera can certainly detect differences of fractions of a degree, looking for differences at a very small scale means there will be a lot more noise in the signal and it may be far less obvious what you're seeing. My guess is a long course racer could use a motor mid bike leg and leave the motor and battery to cool for an hour or more before T2, dribble some sweat and water on the frame and it may not be detectable at all. That's without even getting into any fancy cooling systems or heat camouflage paint schemes.