One of the main advantages to this type of actuation scheme is that compliance is built into the design, which provides a more fluid, varied movement for the camera, said Tom Secord, a former MIT colleague of Ueda's who is now an engineer at Medtronic, a biomedical device company in Minneapolis, Minn. He said:
What the cellular architecture shows you to do is activate small subgrounds to scale the output. By turning individual units on or off, which is very easy to do, you can achieve a wide range of outputs … this simplifies the control problem of achieving a desired output for a robotic movement.
The end result is that we have a camera positioning mechanism that works in the same way as the human eye. The devices that drive it are flexible. They are stretchy like rubber bands in the same way the human eye muscles are.
While the mechanism is still being tested and there are no plans for commercial development yet, Schultz envisions several medical applications for the cellular actuation method used in the camera. The camera itself, for instance, could be used inside an MRI machine not only because of its movements but also because of its material composition. The mechanism created by Georgia Tech uses non-theritic materials that won't be affected by the procedure's magnetic field the way motors that use iron as their base would, Schultz said.
Traditional motors have iron-based materials and so they can't go in an MRI room [because] they will go flying into an MRI field and break the machine. Since the cellular actuators aren't made of iron, they are only minimally affected by the magnetic field. They may distort the image but it's not too bad. They can use the camera mechanism to look around in MRI [tests].
The cellular actuation method created by the team also opens the door for innovative new surgical devices that could complement the work of doctors by lending a robotic hand to their work, Schultz said.
This artificial muscle could be used... to apply a force to the patient, clamping a blood vessel, or pushing some tissue that's being operated on. This type of robotic actuation could be used to actuate a number of different surgical robotic devices.
No matter which animal or human example you use, the Creator got it right the first time. It is a wise choice to not try and reinvent the wheel. It has already been invented! So, copy nature build a better mouse trap. The trick is to understand how He did it. That isn't so easy. There are reasons for everything nature does. Engineers need to take time and look around. It is amazing what the world has to teach us!
I'm with you Naperlou. I would think there may be better vision models in nature than the human eye movement. The insect or bird worlds probably have superior versions of eye movement than human eye movement.
While this is very interesting, one thing that the researchers did not address is a comparison of human motion and more traditional machine motion. While humans are very flexible, they are often not very precise. A more interesting question is what is the optimal type of motion.
The engineers and inventors of the post WWII period turned their attention to advancements in electronics, communication, and entertainment. Breakthrough inventions range from LEGOs and computer gaming to the integrated circuit and Ethernet -- a range of advancements that have little in common except they changed our lives.
The age of touch could soon come to an end. From smartphones and smartwatches, to home devices, to in-car infotainment systems, touch is no longer the primary user interface. Technology market leaders are driving a migration from touch to voice as a user interface.
Soft starter technology has become a way to mitigate startup stressors by moderating a motor’s voltage supply during the machine start-up phase, slowly ramping it up and effectively adjusting the machine’s load behavior to protect mechanical components.
A new report from the National Institute of Standards and Technology (NIST) makes a start on developing control schemes, process measurements, and modeling and simulation methods for powder bed fusion additive manufacturing.
If you’re developing a product with lots of sensors and no access to the power grid, then you’ll want to take note of a Design News Continuing Education Center class, “Designing Low Power Systems Using Battery and Energy Harvesting Energy Sources."
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.