![Auto tuning shop Auto tuning shop](/uploads/1/3/3/2/133272844/657224983.jpg)
- Sep 12, 2016 Once your motion control system is set up and ready for use, you must fine tune and adjust the tuning parameters in order to properly and optimally have the actual path match your desired movement.
- Arduino-based automatic antenna tuner. I have one of those LDG auto tuners that works just fine. So, when a tuner with a roller inductor finally came my way, I figured out what I was going to do with it - make it an auto-tuner. The servo side of the roller inductor is at ground potential, but the ends of the capacitors have potentially.
Servo Motor Tuning
Optimizing Servo Auto Tuning Tool
I've been looking for an inexpensive antenna tuner with a roller inductorfor a while -- 'inexpensive' is why I've been looking for a while. Not surewhy -- I have one of those LDG auto tuners that works just fine. So, whena tuner with a roller inductor finally came my way, I figured out what Iwas going to do with it -- make it an auto-tuner. In April/May/June 2002 issues of QST, W8ZR presented his EZ-tuner project. This is a T-network tuner controlled by BASIC Stamp (remember those?). According tothe project site, this is more of a memory tuner -- all matches need tobe set ahead of time and will be selected based upon recalled frequency.It also looks like the inductor is fixed with taps. https://maxbrown906.weebly.com/little-snitch-rule-subscription.html. My goal is to use a stepper motor for each of the capacitors and the rollerinductor controlled by an Arduino Mega. Match will be determined by sensingforward and reverse power and optimizing by some algorithm TBD. Mac app store software update section. I would alsolike to integrate two radio inputs, three antenna output and bypass/throughfunctionality. Starting materials The tuner I started with is an SPC design -- series/parallel capacitor. Note the ganged but isolated capacitors on the output. The SPC tuner design has an output capacitor in parallel and in series withthe inductor. I guess this gives some harmonic attenuation and wider tuningrange for the cost of twitchier tuning and higher loss. That all remains tobe seen, I guess. Proposed layout I picked up a decent 2U somewhat deep rackmount chassis for $5 and it lookslike everything might fit. Proximity of the components to the chassis mayreduce the maximum power through the unit but will all probably be fine forthe 100 watt maximum I have. The front of the tuner will have an aluminum panel on which the NEMA23stepper motors are mounted. These will be coupled to the components viawhat I currently suspect is going to be fiberglass rod. The right side ofthe case will have switching, sensing and electronics. Download disk space of ffmpeg in macos. The components are mounted off the chassis with some plexiglass spacerswhich should be adequate for the 100W I anticipate. I came across an interesting find -- the RAMPS 1.4 3D printer controllerintegrates a display, stepper drivers, sensor switches and a bunch of otherstuff along with an Arduino Mega into an inexpensive and small package. I'll need all of the stame stuff for the tuner, that will probably be theelectronics package I use. Somewhere in there I need to do some limit switches to sense the end travelof the roller inductor and some arbitrary spot on the capacitors. https://maxbrown906.weebly.com/gordon-ramsay-games-download.html. For antenna switching I'll probably go with regular DPDT relays, modifiedslightly for use at HF frequencies -- which is really just DC with a bit ofripple on it if you ask the microwave guys. https://armgood.weebly.com/mpeg-streamclip-mac-download-deutsch.html. http://www.digikey.com/product-detail/en/panasonic-electric-works/HJ2-DC12V/255-1678-ND/570815 More to come. Traktor pro 3 streaming. Sun Apr 30 22:43:48 CDT 2017It's a cold rainy spring day so I don't feel bad about spending time indoors onthis project. I think writing my own menuing system is a waste of my time --I would much rather be writing control and tuning code, making steppers andlimit switches work, rather than trying to go through cycle after cycle of making my menu code pretty and trying to figure out why returning from onemenu branch isn't like another. I did some looking around and found LCDMenuLib -- which I have working with my u8g2 LCD display with the rotary encoder and 'stop' button to go back. I'm hoping using this code will get me goingmore quickly on more interesting control problems. Additionally since my last update I found a cheap 4U enclosure -- which while a bitlarge -- seems to fit my components much more easily. The enclosure design allowsthe bottom of the chassis to be re-positioned about 1/3 of the way up -- which willallow for logic and power supply circuitry to be located outside of the enclosurewith all of the RF. I imagine the right-hand side to contain the relay crossbar forthe 2 x 3 (?) input/output matrix. (Maybe 3x5 -- don't know) I found some 1/2 inch teflon rod and a 1/4' to 5mm flex shaft adapter for the stepper motor on the roller inductor as well. The servo side of the roller inductor is at ground potential, but the ends of the capacitors have potentiallyhigh voltage. I put the teflon rod in my lathe, centered it in a 3-jaw chuckand eased a 1/4' drill bit in the end for the capacitor. A 1/2' collar with setscrew seems to do a fine job of holding the capacitor shaft securely. Added my most recent code to github: I think I'm at the point where I can start reasonably screwing down hardware, installingthe arduino hardware in the chassis and testing stepper code. https://dhrenew274.weebly.com/mac-os-sierra-unlocker-download.html. This page last modifiedFri Oct 6 23:13:11 CDT 2017by timc! |
Optimizing Servo Auto Tuning Kit
Jan 23, 2013 Pro-Motion 4.5 motion systems offer visual tools for prototyping servo hardware, developing motion code, and optimizing servo loops. Key capabilities includes frequency-based servo analysis, easy-to-use axis wizard setup tool, fast and accurate servo loop auto-tuner, Windows 32. Remember that what you are optimizing is an important factor in determining the best servo parameters. This fact, although obvious, is often overlooked both by motion control end-users, and vendors that provide auto-tuning programs for determining the “best” values. Autotuning holds out the promise of eliminating human involvement in. Improved genetic algorithm Considering the process of control parameters auto-tuning for bi-axial servo feed system, the IGA based on the standard genetic algorithm (SGA), is proposed to attain the desired performances and to overcome the drawbacks of conventional genetic algorithm.