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Peter B
United States
เข้าร่วมเมื่อ 15 ก.ย. 2013
Product Development for The Power Mole
The Power Mole is a device that enables powering outdoor devices via indoor outlets via wireless power transfer through windows. This video gives an overview of the product development process I used, touching on industrial design, electrical/mechanical engineering, and firmware/software.
Kickstarter Link:
www.kickstarter.com/projects/acquaindustries/the-power-mole-wireless-power-transfer-through-windows?ref=b9gm69
Antenna Page Link:
www.antenna-theory.com
Antenna TH-cam Link:
www.youtube.com/@pjbevel
Acqua Industries (LLC for the Power Mole):
www.acquaindustries.com
Kickstarter Link:
www.kickstarter.com/projects/acquaindustries/the-power-mole-wireless-power-transfer-through-windows?ref=b9gm69
Antenna Page Link:
www.antenna-theory.com
Antenna TH-cam Link:
www.youtube.com/@pjbevel
Acqua Industries (LLC for the Power Mole):
www.acquaindustries.com
มุมมอง: 742
วีดีโอ
TVC Rockoon Liftoff
มุมมอง 7342 ปีที่แล้ว
I built a 2 stage Thrust Vector Controlled Rocket (with Spin control), with the goal of launching it from a high altitude balloon from 90,000 feet. Several balloon liftoff attempts were made before the balloon and rocket sailed off together.
Clustered 2-Stage Thrust Vector Controlled Rocket
มุมมอง 6512 ปีที่แล้ว
I use 4xH13ST Aerotech motors in a Thrust Vector Controlled (TVC) rocket. I have adaptive spin control as well. This is a J-impulse high power rocket, launched Febraury 2022 at Tripoli Central California. Two H13s fire at launch, followed by the second two at about 14s into flight. The altitude was greater than 1 mile high, best estimate is about 5800 feet.
Clustered Aerotech G8 Thrust Vector Control Rocket
มุมมอง 8782 ปีที่แล้ว
I launch a TVC rocket with pitch, roll and spin control. The motors are 2xG8 long burn (20s) from Aerotech [G8-ST Super Thunder]. I launch off the ground with no ground support equipment, and have an on-board GoPro for some great on-rocket footage.
Thrust Vector Controlled Rocketry: Spin Control with a 2 Engine Cluster
มุมมอง 4082 ปีที่แล้ว
My previous spin control solution was not ideal, because I needed a heavy dc motor and a spin mass. I made a clustered 2-element thrust vector controlled rocket that also allows for an additional degree of freedom. If I skew one of the engines, I can induce spin [or compensate for spin]. I demonstrate this on a double Estes E9 thrust vector controlled (TVC) rocket.
F10 Thrust Vector Control Rocket, H13 TVC, then H135 Non-TVC
มุมมอง 4553 ปีที่แล้ว
3 launches and discussion F10 - 7s burn, great launch. GoPro views! H13 - 15.2s burn, gopro view. H135 - Not a TVC, just wanted to record data. Smashed my rocket.
H13 Thrust Vector Controlled Rocket Flight
มุมมอง 8343 ปีที่แล้ว
I launch a 15.2s H13 (Aerotech) Thrust Vector Controlled rocket. Peak altitude was about 1300 feet. Successful launch at October Skies (central California Tripoli rocket club) 2021.
Thrust Vector Control Rocketry - Schematics, Design and 2 Launches
มุมมอง 1.1K3 ปีที่แล้ว
Everything I do is open sourced..... all code, board files, schematic, etc on the github here: github.com/pete463251/tvc-june2021 I discuss electronic design of the rocket, then do 2 launches, an F10 (7-second burn) and an H13 (15second burn), then look at the data. If there's anything else you'd like to see add a comment and I will look to add. - Pete
Thrust Vector Rocketry with Spin Control
มุมมอง 7453 ปีที่แล้ว
Follow on to previous video. I implement a spin mass in the nose cone for spin control with a simple algorithm. The final launch uses an updated PID algorithm with reduced max deviation and lower PD values (I set to zero).
Thrust Vector Control for Rockets
มุมมอง 22K3 ปีที่แล้ว
I describe the process I used to design a thrust vector controlled rocket. All the tools used are free (Freecad, python, OpenRocket). The contents: (1) Dual-Axis Gimbal Design [0:41] (2) Rocket Design [3:49] (3) Algorithm Design (PID Controller) [6:36] (4) Launch #1 [12:05] (5) Launch #2 [13:24] The github link for all code and cad is here: github.com/pete463251/thrust-vector-control If you fou...
Balloon Rocket 4: Launching from a Drone
มุมมอง 2314 ปีที่แล้ว
Part 4 of a 673 part series. The rocket is hovered with a DJI phantom 2 drone and fired with an E9 rocket engine. Code/datafiles are on github if interested: github.com/pete463251/Drone-Rocket
Balloon Rocket 3: Rocket Design
มุมมอง 2214 ปีที่แล้ว
My thought process in designing a rocket that will hang from a balloon. I want the rocket engine near the cg. The parts are almost all 3d printed. Theory and equations given for spin stability.
Balloon Rocket Part 2: Advantages and Challenges
มุมมอง 1354 ปีที่แล้ว
This is part 2 of a 673 part series on launching a rocket from a high altitude balloon. Discussion on the "why do you want to do this", advantages and challenges.
Balloon Rocket Part 1: Design and CAD an Ogive Nose Cone and 3d Print It
มุมมอง 1.1K4 ปีที่แล้ว
This is part 1 of a 673 part series on launching a rocket from a high altitude balloon. I use Freecad to CAD up an Ogive Nose Cone, and then 3d print it.
Spin-Stabilized Finless Rocket
มุมมอง 4.6K4 ปีที่แล้ว
From 2013, attempting to launch a rocket without stability from aerodynamic forces.
High Concentration Hydrogen Peroxide Reacting with Silver
มุมมอง 13K4 ปีที่แล้ว
High Concentration Hydrogen Peroxide Reacting with Silver
Concentrating Hydrogen Peroxide from 3% to Above 90%
มุมมอง 102K5 ปีที่แล้ว
Concentrating Hydrogen Peroxide from 3% to Above 90%
High-Test Hydrogen Peroxide and Silver Screen
มุมมอง 3K5 ปีที่แล้ว
High-Test Hydrogen Peroxide and Silver Screen
Will the v2 have more power output?
There is a V2 coming soon, it will be 11 Watts. How much power are you looking for?
please stop calling the center of pressure "Center of Phase" lmfao
Sorry, you're right! I do most of my work on antennas and get things backwards from time to time. www.youtube.com/@pjbevel
Glad to see that my math is correct. Instead of going straight up, I want mine to do a gravity turn with no roll control.
You should simplify things and just get the proof of concept right. Remove all the electronics, balance the rocket on a spindle and pre-spin the rocket using an electric motor as the base. When its spinning at maximum velocity… send it…
bro literally got me a job
How so?
For the bottle mix 3 to 090🎉😂❤
Very theatrical what does a 1% H2O2 solution look like what's this about you could throw a pork chop inthersee what it does to flesh moderation is the thing colloidal silver is better taken separately and if you have silver amalgam fillings better to rinse out .
Great video about the design process.
I like water passover for vacuums.. much quieter and weight controlled with volume vs gravity if more than tap flow strength is needed 😀
Can you use a dehumidifier to get a similar yield?
I want 3 of them!
Your profile picture fits you
هل تتئكسد
Here I am after never paying attention to chemistry in school. In my country any hydrogen peroxide above 3% is being monitored by authorities and you need to be a certified farmer to even be allowed to buy it. I just need it for cleaning my yellow plastics ;_;
When I was in 8th grade, I had an earwax problem and cleaned my ears with peroxide everyday. Then we learned about this process in science class. In my infinite wisdom, I decided that a higher concentration of peroxide could clean my ears even better. So I went home and concentrated 3% peroxide into at least 15% and put a drop in my ear. Instantly, I couldn't hear out of that ear for 5 minutes. I was scared to death. I thought I had lost my hearing in one ear permanently.
This guy sounds like the protagonist in every racist cartoon.
Great video, no complaints
Fantastic!
Looks great
Do you have the patent?
I'm thinking about creating a missile control system for my graduation project from university and I don't know where to start......... Are there any tips you can offer me?
Hope I'm not to late 😅 I would first create a trajectory on Matlab or Python to know the path to target from launch point. This should then translate to an angle with respect to the ground, over time. That angle should then be translated into the missile's frame and with that you have your desired setpoint, that evolves with altitude
I can't believe that is 90 percent H2O2. 90 percent H2O2 is very corrosive and oxidizes very quickly. Its usually stored in a freezer to prevent oxidization.
here is the chart from the video usptechnologies.com/wp-content/uploads/2020/12/Density-of-H2o2-12-14.gif
You can do this but it is dangerous. Above 60% or so H2O2 is capable of runaway decomposition. I worked at a company that was developing a H2O2 sterilization system that took 60%, concentrated it to 95% then flash evaporated it into a vacuum chamber. Every 20 cycles (or so) the solution would "explode" before reaching 95%. Not a problem as it was only 20ml and in a metal chamber but, the point is that we started with a fairly pure solution from an industrial supplier. Drug store peroxide comes with unknown amounts of additional "stuff" that could cause all sorts of problems. I recommend using a face shield and thick clothing so that when a batch does explode, you won't have to pick the glass shards out of your skin!
this is critical in science the brunt of preparations should be safety it's what separates the amateur from the professional
Why does it keep spinning? I’ve never understood that.
The way it recovered and kept going after that liftoff stumble was great! The open body made the onboard video so much better than usual too.
You are doing some interesting designs! My first Level 2 certification flight ended spectacularly after the forward engine closure failed, and blew the chute early during boost. I was just trying to make a commercial build fly - not a scratch design like you have.
That second loss was heartbreaking! You could use a launch assistant - there is just so much last minute prep to do! On the off chance it might help next time - did you insulate your batteries? Probably not the issue, but otherwise I got nothing but empathy.
How did you determine what chemical the stabilizer was, and how did you get rid of it? Awesome job - I haven’t seen anyone else mention stabilizers, let alone demonstrate the impact on performance!
I just googled what the potential stabilizers were. You could tell stabilizers are left in H2O2 because it burns slower and leaves a black residue. Basically I redistilled the distillate, which also had h2o2 in it but no stabilizers
Hey Peter! Thanks for posting this - I had no idea it was that simple to concentrate it that far! You have my sympathy re: so many comments about either just boiling it down or freezing to concentrate it. I told some of those people about how azeotropes complicate the process, but the questions didn’t end! Thanks again - off to watch your demo.
i can smell all the moms coming to argue about this
Hello, thank you for your video. I plan on beginning this type of project, and you really simplified it to an understandable level.
Aaaand we're on a watchlist
You called it . Pretty specific knowledge . Are you a fan of H202 ?
Yay a new chemistry experiment for me to do at home
that dude does chemistry whitout knowing the name of the glassware 😑
You can just concentrate it yourself. Water boils at 212°f hydrogen peroxide boils at 302°f so just get the solution to 250°f and keep it there. Of you know the volume going in and the volume coming out you know the concentration. If you over concebtrate add distilled water if under boil it more. There you go.
It forms an azeotrope with water, and the peroxide will begin decomposing before all of the water is gone. Similar thing as distilling alcohol/water mixes. Alcohol boils first, but it always brings some water with it.
Making oxygen
now its time to *put some ACETONE into there* jk dont lol
hello could you make a video with 35% to over 90% H2O2 please. Sincerely
Sorry can’t hear ya. I am gone won’t be back.😊
I'm very sad that this is still the conclusion of your journey
I've always got something new coming, I may get back to this some day
What would happen if you spilled it ???
Everything explodes, the whole world ends
It will explode so much the sun will be swallowed up and burned, and so will the whole solar system.
@@LanaScott OH NOOO , that is way worse than running with scissors
@@omarjassar4650deal it by putting sulfuric acid on it and it’s safe to touch! It’s totally not corrosive and it won’t dissolve you! (Just kidding)
Ive wondered if one could create H2O2 at higher concentrations by bubbling ozone thru the 3% stuff... will it work?
Ozone will decompose h2o2 forming H20 plus 2O2 molecules.
I did the same thing about 4 years it took a very long time but I was able to make some heavy duty nitric acid.
Oh and fyi the boiling point for H2O and H2O2 are the same . But the freezing point is -56° difference.
But what your not knowing is h2o and h2o2 have the same boiling temp. But freezing them is 0 deg to -52 deg for hydrogen peroxide.
This is some high lvl Pasadena Angel in the laundry room type shit. Throw a pair of gloves made of an appropriate constitution tho pls.
Sorry you didn't recover the rocket! Do you have plans for new flight attempts in the future?
Do you share the code? Please
Your volume on the commentary sucks ma
This eill be freat to know. Now I can launch a Me-163 replica. All I need now is the replica and the tons of 3% H2O2 LOL. But seriously, knowledge is its own reward