April 1, 2021
Piezoelectric motors have long been used for ultra-precise expensive motion solutions in niche industries but the latest innovations in piezo technology enable these devices to be suitable for mainstream motion solutions.
Discover what the piezo-electric effect is and how it can be harnessed to design a new class of rotary and linear motion products. Learn how Piezo motors are driven and how they can be controlled with PWM and serial commands. Gain an understanding of how Piezoelectric motors compare to traditional dc and stepper motor solutions and what advantages and opportunities they present for designers and engineers of OEM equipment and instruments.
See examples of how Piezoelectric motors can be applied to solve motion challenges in a range of applications and industries.
Key Takeaways:
- - What a Piezo motor is and how it works
- - How a Piezo motor compares and contrasts with conventional dc and stepper motors
- - Some of the key benefits / advantages of Piezomotor technology
- - Examples of applications for Piezomotors utilizing the benefits
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Rittal is expanding its smart cooling unit solutions by adding the new Blue e+ S range. Their latest generation of cooling units with lower output categories of 300, 500, and 1,000 W have been designed for efficiency, ensuring a smaller footprint and lower costs – just like their “bigger brothers.” So, it’s a win-win both for users and for our future.
Solutions that reduce our carbon footprint during production are in high demand. But at the same time, these solutions need to be intelligent and communication-enabled so that they can be easily integrated into digitalised manufacturing environments. Seven years ago, Rittal responded to this demand with its Blue e+ range of cooling solutions and launched extremely efficient enclosure cooling units, which provided on average energy savings of 75 percent.
Now we have a new generation – the next generation – but still developed with that same design DNA. These new cooling units with their lower cooling outputs of 300, 500, and 1,000 watts called “Blue e+ S” add to the Blue e+ family, and bring with them additional smart capabilities. And furthermore, this new generation offers innovative energy-saving features for the production process.
What’s behind this energy-saving and therefore cost reduction is the technology used, combining a heat pipe with inverter-controlled components. The heat pipe works without a compressor, expansion valve, or other regulating elements and so does not need any electrical energy except to operate the fan. Depending on the thermal energy generated in the enclosure and the current ambient temperature, cooling can be performed with the heat pipe alone. The additional compressor cooling only operates if a large amount of heat has to be dissipated from the enclosure or if the ambient temperature is very high. And what’s more – when it does operate, it is far more energy-efficient than conventional units. This is because the compressor and fans possess an inverter-controlled drive, which automatically adjusts their speeds depending on the requirements. As a result, the temperature within the enclosure remains constant, and the energy efficiency is significantly higher than with other more conventional cooling units.
Staying cool all the time
Alongside energy efficiency, another feature also reduces the carbon footprint: The new Blue e+ S series uses a refrigerant with a GWP (Global Warming Potential) that is 56 percent lower than those used in comparable cooling units. Furthermore, instead of the R-134a previously used, the cooling circuit in the new generation of units now runs with R-513A refrigerant.
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