When you show the numbers changing, also show that you, a human, has to change the angle of the potentiometer to point to the spot on the wall. This is a good project for geometry, trigonometry, basic electricity and measurement. You can put the numbers into a spreadsheet and show how to use regressions (or trendline tools in Excel or Sheets). You can extend this to use a stepper motor and camera to line up the points. A pair of galvanometer mirrors can match the dots in two dimensions. Those are the basis of many laser projectors. They can give you a step toward future videos. If you use a camera that can handle Regions of Interest (high frame rates for just the pixels in the image), you can get more data to refine the central point of the two dots -- without having to add lenses. If you monitor a spot with a local camera, especially using region of interest (If you have a cameras that can do 1920x1080 at 30 frames per second, and only look at 192x108 then it should be capable of sending data at 3000 frames per second. That much data can give extremely precise data on the distribution of intensities. Such pixels will be extremely sensitive to vibration. You can teach about vibration, accelerometers, velocity, displacement, seismology, gravimetry, photogrammetry, data sharing and the purposes of working together using precise measurements, sharing algorithms and data streams. Set up live experiments that run forever, share those data streams as a way to teach analysis and working together globally. If you ask for donations and crowdfunding, then you can afford the tools to teach and share. Join with others and work as a group - helping and encouraging each other. Look for schools that need clearer online experiments and demonstrations. Do NOT get diverted by people who only want to milk what you do to make themselves money. You can live a good and useful life teaching others. Donations are for nonprofit efforts. "Crowdfunding" is almost always commercial. Keep your motives distinct and separate. I suggest a .COM website and the associated .ORG site. Then talk to people about products and services on COM, and continue to help with the ORG. Find yourself a good board of advisors. Carefully separate your goals and priorities. You might want to post "Draft" videos, get feedback, then make more careful ones. Give links to spreadsheets (you can use GitHub.com) and to articles. Encourage real discussions and ask for suggestions for new types of measurements. Start a website where people can go to share and work together. Any useful methods, make videos. Use Screen recordings with sound (a screen recorder to show what you see on the screen, and microphone to explain what you are doing). Add those to your video recordings of things. You can show how to use a spreadsheet, or how to write Javascript programs. Do NOT write line by line. Write it, test it, then explain and provide links. This might be from Instructables, but if you make improvements, or are explaining it well, you can make it your own. Check the licensing and sharing from Instructables. You might check out HackaDay.IO and similar groups. Encourage them to make videos and to write and explain clearly. When you start the video, show it in use and show what you are doing. It is not magical, people are doing things. Turning knobs and looking. If you get motors and controls and cameras and sensors to do those things you are automating human skills. Sorry, I cannot give you a clearer set of suggestions. I think you have the potential to help many people. But it is hard work, and any success and interest will only add strains and responsibilities. If this is just for fun, one thing. But to help you clarify your understanding of the world and how to quantify and document it, that is something else. Take a look at the Franck-Hertz experiments. This is one of the founding experiments (in 1914), part of a group of experiments that included the photoelectric effect. Those ideas and simple experiments changed all of human society. The next few years and decades will see a transformation more extensive than the whole of the 1900's. Sincere best wishes, Richard Collins, Director, The Internet Foundation
@@harshadbyadgi You are very welcome. I have been working to understand the Internet for the last 22 years. This year I determined to reach out to people and groups to help work together. I just wrote a note about a reflecting laser interferometer measuring device. I mention that many (most) laser diodes divert part of the beam to use as a reference signal to monitor power. ua-cam.com/video/CBXF5DiDz30/v-deo.html Low cost lasers like you used can be used with fast comparators (digital or analog) to track the distance precisely. When I told them they can move to the pico and femto range I was speaking from having looked closely at that. I track all sensor networks on the Internet and in society. One I am most interested in are those that are reaching the pico and femto ranges. Because these many times are reaching the sensitivity they have to begin correcting for earth tides, the changing potential of the gravitational field at their location gravitational time dilation), and the gradient of the changing potential (a varying tidal gravitational acceleration) at their location. There is a video someone made that shows how to track distances precisely by comparing the reflected signal with the reference (wave comparisons for lasers are called interferometers, but the more general term is correlations). He used an oscilloscope, but I think a software defined radio would give more flexibility. You could just use the receiver to follow the reference and reflected signals (some SDRs are at 6 GHz now) Or you could use the SDRs with transmit receive capability to modulate the signal. 6 GHz is about 5 centimeters, but counting steps and phase is more precise. Especially if you monitor the noise in the signal which is much finer grained than the laser dominant frequency chosen to give colors for human eyes. I am a bit tired. I usually work 12-18 hours a day, seven days a week. But I worked all night and it is 5 am. So a bit hard to give you every single thing, If you think you want to make more videos to help people and set up a way to take donations or crowd funding, then contact me. Best wishes. Richard Collins, Director, The Internet Foundation
you are genuine please can you explain the theory of measuring distance by more details: my understanding is you want to crate triangle and you measured the angle only one angle by pot on free laser, you have the length between to laser i just missed one unknown to get other unknowns
Yes.... That's correct. We know the distance between the two lasers and the angle of free laser because of the potentiometer. And the fixed laser makes an angle of 90°. So we know one side and the two angles at either end of the triangle.
@@harshadbyadgi awesome , I have another question how you get the function 10.4 tan (((x-5) *pi)/ (2*895)) - 0.9 tan ............: and I guess so we can measure the horizontal distance after determining the vertical distance and assuming the angle between the end point of the vertical distance and new point have 90-degree angle. thank you very match 🥰🥰🥰
Hi, I'm trying to make my own filament for 3D printing; how could this be used to measure the diameter of running filament line: 1.75mm, 2.85mm, 3.00mm. Your help would be greatly appreciated because professional laser scan micrometers start at $1200, and I cannot afford that price range.
Hi.. Can you please explain me your problem in a bit more detail? Please drop your contact information in contact me section of my website. sites.google.com/view/harshadbyadgi/contact-me?authuser=0 I will get back to you shortly
Point one laser at a distant spot, then point a nearby laser to the same spot. Measure the distance between the centers of rotation of each laser assembly and the angle of the rotatable laser. Monitor the resistance in a variable potentiometer using a small computer with analog to digital capabilities. Use trigonometry to find the distances. Use a series of measurements to calibrate the potentiometer so that this measurement tool gives standard and precise distances and angles.. Keep trying to get it concise and complete! Using the instrument is as, or more, important than designing and building it. Every instrument or product is useless if the time to just get it to work greatly exceeds the time to buy it. That is the failing of most products and tools today. Richard Collins, The Internet Foundation
Ben Krasnow "Applied Science" made this video Laser diode self-mixing: Range-finding and sub-micron vibration measurement ua-cam.com/video/MUdro-6u2Zg/v-deo.html
If you press enter when trying to reply, it erases the message. Here is Ben Krawnows video on using simple diode lasers for measuring distance. He used an oscilloscope. But you might try using software defined radios (SDR) as a very fast ADC (analog to digital converter) Laser diode self-mixing: Range-finding and sub-micron vibration measurement MUdro-6u2Zg
hi am from india. can you pls make distance measuring device with multi output like 1)Centimeter 2) Inch 3)feet 4)mm with generic audirno, beardboard pls
When you show the numbers changing, also show that you, a human, has to change the angle of the potentiometer to point to the spot on the wall. This is a good project for geometry, trigonometry, basic electricity and measurement.
You can put the numbers into a spreadsheet and show how to use regressions (or trendline tools in Excel or Sheets).
You can extend this to use a stepper motor and camera to line up the points.
A pair of galvanometer mirrors can match the dots in two dimensions. Those are the basis of many laser projectors. They can give you a step toward future videos.
If you use a camera that can handle Regions of Interest (high frame rates for just the pixels in the image), you can get more data to refine the central point of the two dots -- without having to add lenses.
If you monitor a spot with a local camera, especially using region of interest (If you have a cameras that can do 1920x1080 at 30 frames per second, and only look at 192x108 then it should be capable of sending data at 3000 frames per second. That much data can give extremely precise data on the distribution of intensities. Such pixels will be extremely sensitive to vibration. You can teach about vibration, accelerometers, velocity, displacement, seismology, gravimetry, photogrammetry, data sharing and the purposes of working together using precise measurements, sharing algorithms and data streams. Set up live experiments that run forever, share those data streams as a way to teach analysis and working together globally.
If you ask for donations and crowdfunding, then you can afford the tools to teach and share. Join with others and work as a group - helping and encouraging each other. Look for schools that need clearer online experiments and demonstrations. Do NOT get diverted by people who only want to milk what you do to make themselves money. You can live a good and useful life teaching others. Donations are for nonprofit efforts. "Crowdfunding" is almost always commercial. Keep your motives distinct and separate. I suggest a .COM website and the associated .ORG site. Then talk to people about products and services on COM, and continue to help with the ORG. Find yourself a good board of advisors. Carefully separate your goals and priorities.
You might want to post "Draft" videos, get feedback, then make more careful ones. Give links to spreadsheets (you can use GitHub.com) and to articles. Encourage real discussions and ask for suggestions for new types of measurements. Start a website where people can go to share and work together. Any useful methods, make videos. Use Screen recordings with sound (a screen recorder to show what you see on the screen, and microphone to explain what you are doing). Add those to your video recordings of things. You can show how to use a spreadsheet, or how to write Javascript programs. Do NOT write line by line. Write it, test it, then explain and provide links.
This might be from Instructables, but if you make improvements, or are explaining it well, you can make it your own. Check the licensing and sharing from Instructables. You might check out HackaDay.IO and similar groups. Encourage them to make videos and to write and explain clearly.
When you start the video, show it in use and show what you are doing. It is not magical, people are doing things. Turning knobs and looking. If you get motors and controls and cameras and sensors to do those things you are automating human skills.
Sorry, I cannot give you a clearer set of suggestions. I think you have the potential to help many people. But it is hard work, and any success and interest will only add strains and responsibilities. If this is just for fun, one thing. But to help you clarify your understanding of the world and how to quantify and document it, that is something else.
Take a look at the Franck-Hertz experiments. This is one of the founding experiments (in 1914), part of a group of experiments that included the photoelectric effect. Those ideas and simple experiments changed all of human society. The next few years and decades will see a transformation more extensive than the whole of the 1900's.
Sincere best wishes,
Richard Collins, Director, The Internet Foundation
Thankyou sooo much for your time and for writing so many suggestions.
I will definitely make most out of it.
Thank you
@@harshadbyadgi You are very welcome. I have been working to understand the Internet for the last 22 years. This year I determined to reach out to people and groups to help work together.
I just wrote a note about a reflecting laser interferometer measuring device. I mention that many (most) laser diodes divert part of the beam to use as a reference signal to monitor power.
ua-cam.com/video/CBXF5DiDz30/v-deo.html
Low cost lasers like you used can be used with fast comparators (digital or analog) to track the distance precisely. When I told them they can move to the pico and femto range I was speaking from having looked closely at that.
I track all sensor networks on the Internet and in society. One I am most interested in are those that are reaching the pico and femto ranges. Because these many times are reaching the sensitivity they have to begin correcting for earth tides, the changing potential of the gravitational field at their location gravitational time dilation), and the gradient of the changing potential (a varying tidal gravitational acceleration) at their location.
There is a video someone made that shows how to track distances precisely by comparing the reflected signal with the reference (wave comparisons for lasers are called interferometers, but the more general term is correlations). He used an oscilloscope, but I think a software defined radio would give more flexibility. You could just use the receiver to follow the reference and reflected signals (some SDRs are at 6 GHz now) Or you could use the SDRs with transmit receive capability to modulate the signal. 6 GHz is about 5 centimeters, but counting steps and phase is more precise. Especially if you monitor the noise in the signal which is much finer grained than the laser dominant frequency chosen to give colors for human eyes.
I am a bit tired. I usually work 12-18 hours a day, seven days a week. But I worked all night and it is 5 am. So a bit hard to give you every single thing,
If you think you want to make more videos to help people and set up a way to take donations or crowd funding, then contact me. Best wishes.
Richard Collins, Director, The Internet Foundation
if u could make a video with more detail i will be sure to watch it as well, i like the content and the structure of the video too.
Thank you so much
this is really cool man!
Whats is the receiver you have used?
you are genuine please can you explain the theory of measuring distance by more details: my understanding is you want to crate triangle and you measured the angle only one angle by pot on free laser, you have the length between to laser i just missed one unknown to get other unknowns
Yes.... That's correct. We know the distance between the two lasers and the angle of free laser because of the potentiometer. And the fixed laser makes an angle of 90°. So we know one side and the two angles at either end of the triangle.
@@harshadbyadgi awesome , I have another question how you get the function 10.4 tan (((x-5) *pi)/ (2*895)) - 0.9 tan ............: and I guess so we can measure the horizontal distance after determining the vertical distance and assuming the angle between the end point of the vertical distance and new point have 90-degree angle. thank you very match 🥰🥰🥰
Omg thx i can use this and sace more money on my project
Plz plz explain in detail the circuit diagram or give a circuit diagram of connection, why you used resistor.
Hi, I'm trying to make my own filament for 3D printing; how could this be used to measure the diameter of running filament line: 1.75mm, 2.85mm, 3.00mm. Your help would be greatly appreciated because professional laser scan micrometers start at $1200, and I cannot afford that price range.
Hi.. Can you please explain me your problem in a bit more detail? Please drop your contact information in contact me section of my website.
sites.google.com/view/harshadbyadgi/contact-me?authuser=0
I will get back to you shortly
@@harshadbyadgi Thank you I have sent it.
Point one laser at a distant spot, then point a nearby laser to the same spot. Measure the distance between the centers of rotation of each laser assembly and the angle of the rotatable laser. Monitor the resistance in a variable potentiometer using a small computer with analog to digital capabilities. Use trigonometry to find the distances. Use a series of measurements to calibrate the potentiometer so that this measurement tool gives standard and precise distances and angles..
Keep trying to get it concise and complete!
Using the instrument is as, or more, important than designing and building it. Every instrument or product is useless if the time to just get it to work greatly exceeds the time to buy it. That is the failing of most products and tools today.
Richard Collins, The Internet Foundation
Yes definitely
Ben Krasnow "Applied Science" made this video
Laser diode self-mixing: Range-finding and sub-micron vibration measurement
ua-cam.com/video/MUdro-6u2Zg/v-deo.html
If you press enter when trying to reply, it erases the message.
Here is Ben Krawnows video on using simple diode lasers for measuring distance. He used an oscilloscope. But you might try using software defined radios (SDR) as a very fast ADC (analog to digital converter)
Laser diode self-mixing: Range-finding and sub-micron vibration measurement
MUdro-6u2Zg
What is the maximum distance you can measure with this?
It worked will upto a distance of 2.5m
what is the max range it can reach?
It is good up to 2 meters
hi am from india. can you pls make distance measuring device with multi output like 1)Centimeter 2) Inch 3)feet 4)mm with generic audirno, beardboard pls
Could you share the code please ?
I have put the code on instrutables
if u could make a video with more detail i will be sure to watch it as well, i like the content and the structure of the video too.