Multirotor vibration
DynexHobby provide solutions for hobbyist and professional photographers to help reduce vibrations on their platforms. We have created a tutorial on this subject and provide a few simple ways you can avoid the "jello" problem.
You can read the full article here.
In future articles we will demonstrate how you can measure structural resonance of your multirotor.
Enjoy
Comments
The designer app is now available for FREE. Download at www.dynexhobby.com to try it today.
I’ve been trying to balance stuff for years using static balancers with mixed results. We owe it to new start-ups coming into the market, taking risks and innovating. That’s how “the maker” revolution got started right?
I did a quick search to see what else is out there. It appears that their price isn't that bad by comparison,
Aerbros Balancer $398USD
http://aerobros.com/online/index.php?id_product=40&controller=p...
Microbalance $2590USD
http://usbmicrobalance.com/purchase/
would love to see this stuff in action though.
Thanks for your comments. Feedback is always appreciated and we look at feeding it back into our product development.
It looks like some clarification is required.
The multirotor designer doesn’t connect to any hardware. It is essentially a “calculator” to design your multirotor or helicopter. The way it works is like this, the user opens the application enters the geometry, material properties and the weights that define your multirotor. The application then calculates the first fundamental natural frequency of the structure. The results have been validated by finite element modelling and even flight testing. We even have a FEM of the X525 on our YouTube channel. We are happy to offer the app for free.
Generally the first fundament frequency is the one we are concerned about as the multirotor must pass through this speed first before it gets to the next harmonic and so on. In future we will demonstrate how to measure the fundamental frequencies.
The Vortex system spectral analysis has been tested from 10Hz up to 10kHz without issue however we cap the performance at 1500Hz as the sensor response starts to wash out a little. The companion software has quite a bit in it. It’s more than connecting an accelerometer to an oscilloscope. It has complex FFT and filtering analysis to provide stable results when taking measurements. Noise is a big issue so we have specialised tools to handle that.
We are currently reviewing the circuit design to produce a more cost effective product. We won’t stop innovating either and customer feedback is so important to us.
We look forward to hearing from users of the Vortex system.
Happy holidays :)