Relativistic Effect on Object Accelerated to 10000-10000m/s^2

[sfsssfefsfe]

I am observing the speed of an object whose acceleration is about 1000G to 10000G (10000-10000m/s^2),
both with a laser sensor and a high speed camera in very short time
But the results keep coming out in a way that the laser sensor sees the velocity about 10-20% faster
than the high speed camera results. So I was wondering if there is any chance that the laser sensor result is affected by general relativity theory.

 

[kuruman]

Hi sfsssfefsfe and welcome to PF.

What kind of speeds are you talking about? My feeling is that any object that you can film is traveling at non relativistic speeds. You might want to carefully look at your methods of estimating the speed for the discrepancy.

 

[Ibix]

I'd be a bit surprised if it's anything to do with relativity if you're accelerating something big enough to photograph. Nor can I immediately see why one sensor would be affected by relativistic effects and the other wouldn't. Anyway, it isn't the acceleration that's important, it's the speed. What kind of top speed are you getting? And are you measuring the velocity during the acceleration and/or after acceleration has finished?

 

[sfsssfefsfe]

@kuruman it is sure that the measurement ends in a non relativistic speed, but the acceleration value is that keeps me worrying about.
@Ibix the top speed is just about everyday vehicle speeds, but since it accelerates in such a short time, wouldn't it affect the wavelength of laser beam
which is about few hundred nm and which again may lead to malfunction of the sensor? I have to lookup for a formula to calculate it, but
I haven't taken any course in relativity field and lack too much knowledge for right now.

one more thing is that the camera is taken from the direction perpendicular to the material and
laser sensor is located in direction that the material is heading right into.

 

[ZapperZ]

The discrepancy has nothing to do with relativistic effects. I suggest you either figure out if those two devices are operating nominally, or have them re-calibrated.

Zz.

 

[PeterDonis]

the acceleration value

Is still very small in relativistic terms. At 100,000 m/s^2 acceleration, it would take about 10 minutes to reach speeds where relativistic effects might start to be noticeable. It sounds like your experiments are a lot shorter than that.

 

[Ibix]

the top speed is just about everyday vehicle speeds, but since it accelerates in such a short time, wouldn't it affect the wavelength of laser beam

You're nowhere near anything that would have any relativistic effect. In relativistic terms the acceleration doesn't matter whatever it is and the velocity is, as you say, every day.

It sounds like you have an equipment problem. Perhaps the sensor integrates over some time period, which may imply an assumption like "velocity is approximately constant over a one millisecond period"?

 

[kuruman]

As a matter of curiosity, how did you estimate the acceleration?