Engineering Stack Exchange
Engineering Stack Exchange

Questions tagged [data]

39 questions
6
votes
4 answers

How can I calculate the rate of power consumption of a solar car along a known route with changes in elevation?

I am working on designing and creating a solar powered car for the Solar Car Challenge. The car will have to race from Dallas, TX to Minneapolis, MN in 5 days (~5 hours of driving a day) along back roads. My team is still in the planning/concept…
Sameer
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4
votes
2 answers

Viscosity of select species at atmospheric pressure for very large temperatures?

I'm dealing with hot combustion products flowing through heat exchangers and I'd like to perform some calculations regarding the flow properties (velocity, temperature, pressure and density) as it passes trough the heat exchanger. I've a 1D model…
André Almeida
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4
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1 answer

How to display data with three degrees of freedom on a chart?

I have a collection of data obtained from calculations and I want to display it on a chart or whiz-wheel or similar, to be used "in the field" as a low-tech solution, since no computer will be available. I have a single output variable calculated…
Carlton
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4
votes
1 answer

Calculating gyro data from accelerometer, pitch, roll and yaw

I am currently collecting accelerometer and attitude data using smartphone sensors. Data is collected at 100Hz over 2.5 seconds. Of which there are 250 accelerometer points and 250 points representing the attitude of the device. I am looking to…
lfs
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3
votes
1 answer

How do I read the component dimension labels given in a schematic?

How to read the dimension labels of this IC?
Jehu Basa J-b
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3
votes
1 answer

Which device should I use to send data to 2 different PCs?

I am trying to send a barcode text to 2 different PCs via USB. The txt editor is opened on both of the computer, but only 1 PC can read the data at one time with a USB hub. Is there a device that can send an input from a barcode scanner to 2…
rupiman
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3
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1 answer

What is a good reason if the data from analysis and measurement does not give a good agreement?

Currently I am doing a comparison results between analytical results and measurement results, I compare stress and strain values in 32 specified locations, unfortunately I found that there are some locations does not give a good agreement. and my…
Cindy.Karina9
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3
votes
1 answer

Difference between broadcasting operation and one-to-many in RF transceiver

While writing a report on data broadcasting I came across this paper where I found description on broadcast operation and one-to-many as shown below broadcast operation; where a single master address many RXQ2 modules concurrently. (using many…
Anton Kastritskiy
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2
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0 answers

How can the Microsoft and the Facebook Fibers reach 160 Tbps between Virginia and Bilbao?

According to this article, Microsoft and Facebook have completed a 160 terabits cross-Atlantic cable. Based on my calculations, this doesn't seem probable, so what did I miss in my calculation? The maximum frequency that a mono-mode fiber can reach…
pierebean
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2
votes
1 answer

Why laptop keyboard has so many bus lines?

I changed one laptop keyboard on the new one and while changing it I noticed that it has 30 line bus. But from my VLSI practice, I know that keyboard can use only 1 data line and 1 clock line (PS/2) or 2 data lines on (USB). The question is why it…
Kaspar Siricenko
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2
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2 answers

Measurement of immobile curved surface

I'm not entirely sure if this is the right place to ask this, so apologies in advance if it doesn't belong. I have a curved surface with many small, irregular holes in it that I would like to measure. The surface is in a location that makes it…
Kevin de Haan
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2
votes
1 answer

What is the best graph type to show a comparison value between two cases?

In that graph, I want to show the two values and the error percentage from the comparison between two values. I am using microsoft excel. can anyone give me any idea which best graph for this case? Thank you
Cindy.Karina9
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vote
1 answer

How to find the wear rate of materials in the net?

Are there any free online databases where I can access data for the wear rates of materials? I tried using CES EduPack, but I'm having no luck. Maybe other free and open databases are also existing on the net? Where and how could I find the wear…
Ralph David Abernathy
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Why we are using PT1 Damping in automobile Sensor values?

I got to know that most of the automobile manufactures are using PT1 Damping (concept like raising Linear/ PT1 failing time etc. ) algorithm in their sensor values. For example : PT1 damping is used in ABS Sensor value to determine the speed. PT1…
user2986042
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1
vote
2 answers

How do I remove outliers in measured sound pressure levels data?

I have measured sound pressure levels (24 h sampling at 25600 Hz) data for many days. The focus of measurements was on road noise, which is a dominant source of noise in the measurement setting. However, there were occasional "disturbances", such as…
khajlk
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