Questions tagged [data]
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Easier for Tx = Rx speeds with fiber than cable?
I've noticed that upload speeds equal download speeds for fiber optic internet plans. Is it easier for Tx speeds = Rx speeds with fiber than with cable?
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Fundamental Frequency values for Rexnord ZA-2115 bearing
I am having difficulty coming to terms with the Rexnord ZA-2115 bearing technical specifications. This bearing is used in the NASA Bearing Dataset where the Rexnord bearings are tested at 2000 RPM ...
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F-1 rocket engine - gas generator data
I’m doing some research on Rocketdyne F-1 engine of Saturn V. In particular I am searching geometric data of the gas generator that feeds the turbo pump. Has someone found this kind of data? It seems ...
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Probability of kitchen toaster breaking
does anyone have any data on the probability of a kitchen toaster breaking such as mechanical or electrical faults?
For a school project- teacher put me in charge to find this
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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 ...
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How to 'normalise' the effect of temperature on pressure to determine an accurate leak rate
I want to determine the leak rate of a container. I pumped it with air and measured the temperature and pressure within the container. What I observed is that, due to fluctuations of temperature in ...
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Best way to do revisions in SolidWorks PDM?
In PDM lots of assemblies and files are stored. Normally when a component is updated/revised that is used in a lot of upper assemblies, all above lying assemblies need to be updated/revised as well. ...
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22
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Converting DWG to SHP
I am trying to convert a .DWG file to SHP. Opening the file in AutoCAD itself returns me an incompatibility issue. Opening the file in AutoCAD Map (v2021) works well but when I export the file to SHP ...
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Flow Velocity Data Automation - Platform/Controller Selection
I have been tasked with (semi) automating flow velocity data collection using a pitot tube in a minaturized wind tunnel. The pitot is mounted on a two axis stepper motor system which is controlled by ...
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1
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28
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Incorporating a dichotomous failure model for sustainment analysis
Disclaimer: I am a data scientist, not an engineer.
I have been tasked with forecasting failures of a given part and seeing how it affects inventory. Suppose I have historical yearly failure data for ...
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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. ...
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Is there any speed difference if we replace a 200-300 meters of copper cables with optical fiber cables? Whats the reason if it increases?
All of us know that the optical fiber cables have more data speed than the traditional copper cables. That's the reason why they're getting replaced in most of the countries. But does even a 200-300 ...
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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. ...
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184
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Calibrate a sensor using another, already calibrated sensor
I have two light sensors.
Sensor A is factory-calibrated and gives a linear response to the light at a certain wavelength.
Sensor ...
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How to graph a dimensionless ratio as the parameter on an XY graph? [closed]
We conducted an experiment to determine the relationship between the heat transfer coefficient for forced convection over a cylindrical rod due to varying air flow velocities. The relationship that ...
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Where do I start with learning how to transfer data via RF
So I literally have no idea where to start but I know what I want to make.
The goal is to somehow transmit 25mb/s of data across 15km with high penetration. Acceptable for reaching through trees and ...
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Do LiDAR sensors generate point cloud data from a single collection or build them up over multiple collections?
I am currently writing a background section on lidar sensing for part of my dissertation. I have either confused myself or not thought on the topic enough and I am attempting to gain a clearer ...
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LAN data from computer
I have an HMI (Siemens MP 377) to print collected data on a LAN connected printer.
Now I would like that the data that are being sent to the printer is also received at a computer through Ethernet LAN....
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39
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Reading a value off a screen with a camera
I'm looking to log some information on a piece of equipment I have running at home. It displays the information I want - operating rpm and some other settings - on seven-segment displays. In an ideal ...
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I just learned about signed magnitude ,1's complement and 2's complement representation and I want to make sure that I understood them
So if I have the number 17 ( 8 bit code), the signed-magnitude representation is : 00010001
For -17 : 10010001
For 1's complement 17 = 00010001
For 1's complement -17 = 11101110
For 2's complement 17 =...
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2
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57
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How to find raw data sets for engineering?
For one of my courses the teachers asked me to find two samples of 30 or queries of data, and I was thinking on how I could begin to search it?
Most of the scientific articles that i looked for ...
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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 ...
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161
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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) ...
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63
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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....
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1
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185
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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?
...
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50
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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 ...
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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 ...
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Historical data for using supervised learning algorithm in the field of Mechanical Engineering [closed]
Being a student in the field of Mechanical Engineering, I am very new to Machine Learning.I did a couple of basic online courses of Machine Learning (including the one by Andrew Ng on Coursera). So, I ...
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85
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Choosing significant figures when dealing with a wide range of values
In a calculation I have received a number of values in the range $1e4-1e6$. Now I would like to display the values with 3 significant figures according to the rules of using significant figures. But ...
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2
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103
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Data logger via modbus hardware solution
I have 3 programable logic controllers and other one which isn't part of my solution but I can access usefull data via modbus. I've setup windows service on a remote server to gather data and store it ...
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374
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Latent heat of fusion of water near triple point
When a thermally isolated vessel of liquid water is depressurized to vacuum, part of water will evaporate, remainder will freeze - total heat being split between latent heat of ice and enthalpy of ...
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454
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How can I increase my ultrasonic sensor accuracy?
I am using a long ranged ultrasonic sensor to measure milk height in milk silos. Milk is stirring.
Milk Silos Design: Shows two type of silos both are stirred in different direction
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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 ...
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2
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124
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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 ...
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494
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How is RF data encoded in WAV files?
I have tried recording RF data using several different software packages: SDR Console, SDR# and HDSDR. They all seem to produce WAV files. When I open the HDSDR file in Mathematica, it says the file ...
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364
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How do I read the component dimension labels given in a schematic?
How to read the dimension labels of this IC?
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512
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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 ...
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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 ...
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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 ...
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