Small non-magnetic motors that work at temperature of 4 Kelvin

In summary, the conversation discusses the need for small, nonmagnetic motors that can operate at a temperature of 4 Kelvin. The conversation suggests searching for linear piezo actuators, but mentions that just using an actuator may not be suitable for the application. It is mentioned that there are several manufacturers of piezoelectric motors, but most do not guarantee operation at low temperatures. The attocubes brand is suggested, but adding an encoder for feedback may be necessary due to reported reliability issues at low temperatures.
  • #1
vst98
51
0
Does somebody knows which companies produce small (approx. matchbox-sized) motors that can work at temperature of 4 Kelvin and are nonmagnetic ?
For example like this one:
http://www.attocube.com/nanoPOSITIONING/ANPx341/ANPx341.html
 
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  • #2
vst98 said:
Does somebody knows which companies produce small (approx. matchbox-sized) motors that can work at temperature of 4 Kelvin and are nonmagnetic ?
For example like this one:
http://www.attocube.com/nanoPOSITIONING/ANPx341/ANPx341.html

I did a google search on Linear Piezo Actuator, and got lots of hits. Maybe try that search?
 
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  • #3
berkeman said:
I did a google search on Linear Piezo Actuator, and got lots of hits. Maybe try that search?

There are maybe lots of companies producing just an actuators, but I need a motor that works at 4K.

Using only an actuator will hardly work for my application, I need linear displacements around ~2cm at 4K. So, (piezo actuator) motor would be much better solution.
 
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  • #4
There are several manufacturers of piezoelectric motors (PI, piezomotor.se etc), but most will not guarantee that they work at low temperature.

The attocubes seem to work, but I've heard reports that the step size at low T is not reliable. So you should add an encoder for feedback.
 
  • #5


There are several companies that produce small non-magnetic motors that can operate at temperatures as low as 4 Kelvin. Some examples include Attocube, which produces the ANPx341 motor mentioned in the question, as well as Cryomagnetics, Lake Shore Cryotronics, and Janis Research Company. These companies specialize in developing and manufacturing scientific equipment for use in cryogenic environments, and their products are often used in research and development applications where precise positioning and control is required at extremely low temperatures. It is important to note that the specific size and specifications of motors may vary among these companies, so it is recommended to consult with each company directly to determine the best fit for a specific project or application.
 

1. How do small non-magnetic motors work at such low temperatures?

Small non-magnetic motors at 4 Kelvin work by utilizing superconducting materials, which have zero electrical resistance at extremely low temperatures. This allows for the efficient flow of electricity through the motor, resulting in its ability to operate at such low temperatures.

2. What makes these motors different from traditional motors?

Unlike traditional motors, which require mechanical components such as bearings and lubricants to function, small non-magnetic motors at 4 Kelvin do not have any moving parts. This eliminates the need for these components and makes the motors more reliable and durable.

3. What are the potential applications for these motors?

Small non-magnetic motors that work at 4 Kelvin have a wide range of potential applications, including in cryogenic systems, space exploration, and medical equipment. They can also be used in environments where traditional motors may not be able to function, such as in extreme cold temperatures.

4. Are there any limitations to these motors?

One limitation of these motors is that they require extremely low temperatures to operate, which can be challenging and expensive to achieve. Additionally, the materials used in these motors are often delicate and can be easily damaged if not handled properly.

5. What advancements have been made in the development of these motors?

Over the years, there have been significant advancements in the development of small non-magnetic motors that work at 4 Kelvin. Researchers have been able to improve the efficiency and performance of these motors, making them more practical for real-world applications. Additionally, new materials and designs are constantly being explored to further enhance their capabilities.

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