accelerometer

[Jorne20]

I want to measure the vibrations in a train wagon with an accelerometer. The bandwidth of the system is 0 - 500 Hz. I also want an extra analog input with a measuring range of 0-10V with which I can also measure the rotational speed of the train wheels: 0 km / h corresponds to 0V, 200 km / h corresponds to 10V and I want a resolution of at least 1 km / h. The data must ultimately end up in an Excel sheet and in a Labview application on a laptop that will take a few hours inside the train for the measurements. Design a measurement system for this and responsibly discuss the components and discuss them (including sensors, what kind of cabling, which systems you need to go from a value in the real world to a PC, etc.)

[GerdW]

Hi Jome,

so you wrote your (homework) requirement you got from your teacher.

What is your question?

And why don't you discuss that with your co-students?

[Bob_Schor]

Good assignment.  When you ultimately get a job, and your boss gives you a similar assignment, will you still ask others to "do your work for you without pay" so you can earn a comfortable salary?  Or (since you joined today, and April 1 is often called "April Fool's Day", when people play "jokes" on each other) are you just kidding us?  [If the latter, I apologize for my earlier remark ...]

Bob Schor

[Henrik_Volkers]

I really like the idea of recording a 500Hz signal for some hours in Excel   ... so I vote for  April 1 😄

[GerdW]

Hi,

we are talking about a bandwidth of 500Hz, so the sampling should use 1kHz sample rate at minimum…

[Henrik_Volkers]

Shure, and if you really want to measure transient signals with 500 Hz bandwidth you should sample some factors higher than 2 😉 

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@GerdW wrote:

Hi,

we are talking about a bandwidth of 500Hz, so the sampling should use 1kHz sample rate at minimum…

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