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https://en.wikipedia.org/wiki/Laser_Doppler_vibrometer
In this wiki page, it says that "The initial frequency of the laser is very high (> 1014 Hz), which is higher than the response of the detector. The detector does respond, however, to the beat frequency between the two beams."
This...
Human body picks up 60-Hz noise from main supply 110-v wiring in rooms. It should be from electrostatic mode coupling.
Is there any article estimated how much parasitic C is between human body and the wirings? Or estimate how much 50-60 Hz voltage noise will human body normally carries in a...
This attached diagram shows a sensing scheme that uses 2nd order sigma delta modulator followed by a second order sinc decimation filter.
In this configuration, the out of band quantization noise will be flat instead of rolling off in higher frequency.
In other words, the post filter noise...
I am looking for articles or textbooks that can explain the impact of 3rd conductor on mutual capacitance on two conductors.
For example, for many capacitance sensing scheme, the mutual C between sensor and object will change linearly with distance if no other conductors nearby. However, if...
In Q3D 12.0, solver provides two surface roughness model:
Hammerstad Model
Huray model
I used Hammerstad Model and doesn't experience problem. However, Huray model with its default parameters can generate strange insertion less response.
The strangeness is that IL of transmission line can...
I am trying to design a 5th order LPF with L-C component. It is singly terminated at source, aka, there is no resistive load.
Looking for a free tool to aid me.
Please recommend. Thanks.
Tried one tool called Filter Lite from NuHertz but it is only up to 3rd order. It is no good.
5th order LC filter with inf. RL and near zero Rs
Most filter design handbooks are about filters with finite RL and RS. I am just wondering whether there is a cheat sheet to design filters with capacitive load and low impedance driver.
Thanks,
Neo
Hi,
I have a question about simulating the noise of a S/H circuit.
The method I am using right now is to simulate noise in sample and hold phase separately.
First, I put it in sample mode and simulate the noise over the sampling capacitor (CS) and hold capacitor (CH).
I used HSPICE .NOISE...
I agree SAR can very efficient in low speed mode. 8x interleaving is slightly concerning me. Do you think that with 8x interleaving, SAR still have a lot advantage in power?
Hi,
The requirement is to have 50MS/s data throughput. I have two choices:
1. pipelined ADC
2. 8-way interleaved SAR
The technology will be on 0.18um. Which topology will be more efficient in power/area?
Regards,
Neo
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