NTEGRATIO N HELP

[mechanical Engineer]

I am doing motion control simulation. what i want to do is to perform a numerical integration for the velocities resulted from the kinematic differential equations.

e.g.: x_dot(velocity)------>integrator------>x(position) 

[OliviaC]

Hi mechanical Engineer,

Are you using the Simulation Loop for your motion control simulation? If so, you can use the integrator from the Control Design & Simulation»Simulation»Continuous Linear System palette or the Control Design & Simulation»Simulation»Discrete Linear System palette. If you are not using the Simulation Loop, you can find a numeric integrator in the Mathematic»Integration & Differentiation palette.

[mechanical Engineer · Accepted solution]

Thanks soo much, it works.

 

[UCT]

NTEGRATIO N HELP

 

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06-24-2010 02:52 AM

Hi all,

Im new to labview and am not sure how to perform the correct integration of a signal. The problem i have is that after integration the signal is offset by a value. I know this is due to the antiderivative of the function is the sum of the antiderivative plus a constant C. I tried to remove this offset by measuring the dc value and subtracting it. The problem is that the resuslt is a scalar value and not a waveform. The integral of a sine signal should give me -cos +c signal and i just want to remove the constant c and obtain the -cos waveform. Which VIs should i be using?

[UCT]

Hi all,

Im new to labview and am not sure how to perform the correct integration of a signal. The problem i have is that after integration the signal is offset by a value. I know this is due to the antiderivative of the function is the sum of the antiderivative plus a constant C. I tried to remove this offset by measuring the dc value and subtracting it. The problem is that the resuslt is a scalar value and not a waveform. The integral of a sine signal should give me -cos +c signal and i just want to remove the constant c and obtain the -cos waveform. Which VIs should i be using?

[Jochen]

duplicate post

Please don't post multiple posts about the same issue in multiple boards. It's also not recommended to add new questions, that are not directly related to the original post to existing threads.

Thanks and kind regards,

Jochen Klier

National Instruments