Questions tagged [systemresponse]

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4
votes
5answers
320 views

Exciting an RC Circuit at its TRUE Pole on the Sigma (Real) Axis in the Left-Half Plane

Yeah, you probably are reading this question and thinking I'm one of those engineers who hasn't learned about the s-plane. I can assure you I'm not! I know that the transfer function of an RC circuit (...
3
votes
7answers
444 views

Understanding Lead in a causal system

I've gone through school and done all the work but looking back at it i still don't quite get it. The rule is current in a capacitor leads and in an inductor lags. The inductor makes perfect sense ...
1
vote
1answer
129 views

Find the transfer function given responses

We have an open loop system with an input u , a transfer function G(s) and an output y. We apply the following inputs $$u_i(t)=\sin(ω_it), i=1,2,...6 $$ and get the following responses These are of ...
1
vote
3answers
118 views

How to set the sampling frequency for this filter+

I need to make a passive LP anti-aliasing filter(recommended cut off freq.). Filtered signal from an hotwire-anemometer will be measured by DAQ has 100Meg input impedance. The thing is that my ...
1
vote
2answers
72 views

A very basic question about response time of an instrument

Regarding a temperature transducer, what is meant by response time in this context? It says it can be set to < 30 ms or < 300 ms. Is there any trade of between choosing low or high response time?...
1
vote
1answer
50 views

Impulse response of a LTI TD system

Why the impulse response of this system: \$y(n)=\sum_{|k|\leq3}^{}x(n-k)\$ is: \$h(n)=\sum_{|k|\leq3}^{}\delta(n-k)\$ and the impulse response of this one: \$y(n)=\sum_{k=0}^{+\infty}x(n-k)\$ is:...
1
vote
1answer
541 views

How to find the step and impulse response of a circuit with a diode

I have a circuit similar to the following: simulate this circuit – Schematic created using CircuitLab I am trying to find the impulse and step response mathematically. I know I can split the ...
0
votes
1answer
350 views

Why a system is causal if the impulse response is zero for \$t<0\$?

I was reading a definition that Suppose \$h(t)\$ is the impulse response of any system \$Y\$, then the system is causal if and only if \$h(t)=0\$ for \$\forall t<0\$ I know what a causal ...
0
votes
1answer
66 views

Help needed using convolution to calculate a system's impulse response

I have a circuit with the transfer function \$G(s) = \frac{1}{(s+1)^2}\$ and I'm asked to calculate the impulse response of the circuit. After looking into it I know that I need to use convolution ...
0
votes
1answer
1k views

RLC Response (Overdamped, Underdamped, and Critically damped)

Ive got a question about identifying the overdamped, underdamped, and critically damped waveforms of an RLC circuit. From my (very basic understanding), underdamped decays while oscillating. ...
0
votes
3answers
929 views

How is the impulse response related to pole/zero-plot?

I have trouble understanding how you can from a pole/zero-plot say something about the impulse response. For instance I have 2 poles in (-5 +/- 8 jw) and a zero in 0. How would I know, from just ...
0
votes
1answer
120 views

Settling time in 2nd order response (circuit)

I understand the definition of settling time defined as "time took to reach within +-2% (or 5) of the converged value". Then does it mean settling time cannot be defined when the response converges to ...
0
votes
2answers
38 views

The zero-input and zero-state response of a circuit consisting only of a dc source and a capacitor?

From my understanding, the zero-input and zero-state responses of an RC circuit can be found by solving for the homogenous and particular solution of the ordinary differential equation found using ...
0
votes
0answers
35 views

How do I find the second order transfer function from this response graph?

I am trying to find the second order transfer function from this response graph, however since I can't find the correct overshoot value I'm stuck. The graph runs from 0 to 10 seconds and starts at 1 ...
0
votes
1answer
44 views

Is the charge accumulation linear in time for image sensors?

Reformulating the question: Does the rate of charge of the pixels photodiodes in an image sensor depends of the previous accumulated charge? The pixel sensor integrates light during a specific ...