A piezoelectric motor, sometimes known as a piezo motor, is a form of electric motor that relies on the piezoelectric effect, which causes a piezoelectric material to change shape when an electric field is applied.
Depending on the mechanism, an electrical circuit causes acoustic or ultrasonic vibrations in the piezoelectric material, which is typically made of lead zirconate titanate but can also occasionally be lithium niobate or another single-crystal material.
These vibrations can result in either linear motion or rotary motion. Inchworm, stepper, and slip-stick motors are a few varieties of piezoelectric motors, as are ultrasonic motors, which are further divided into standing wave and travelling wave motors.
In contrast to the majority of other piezoelectric actuators, which have a motion range that is constrained by the static strain that may be induced in the piezoelectric element, piezoelectric motors typically employ a cyclic stepping motion that enables the oscillation of the crystals to produce an arbitrarily large motion.
Piezoelectric crystal growth and formation is a well-established industry that produces very uniform and consistent distortion for a given applied potential difference.
The piezoelectric motor may take very small steps as a result of this and the tiny scale of the distortions. Manufacturers guarantee accuracy down to the nanoscale level. The steps can occur at extremely high frequencies—upwards of 5 MHz—due to a rapid reaction rate and swift crystal distortion.
The Global Piezoelectric Motor Market accounted for $XX Billion in 2023 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2024 to 2030.
The growth of the market is attributed to the increasing demand for piezoelectric motors in industrial automation, medical devices, aerospace, and defense, automotive, and consumer electronics applications.
Challenges in the piezoelectric motor market included the relatively higher cost of these motors compared to traditional alternatives and the need for specialized expertise in their integration.
Piezoelectric motors were preferred in applications where energy efficiency was critical, as they typically consume less power compared to traditional electromagnetic motors.
The key players in the global piezoelectric motor market include Nidec Corporation, Physik Instrumente GmbH & Co. KG, CEDRAT TECHNOLOGIES, ALIO Industries, Inc., and Precision Microdrives, Inc.
The standing wave-type piezo technology pioneer for rotary and linear motion products, Discovery Technology International, Inc., has been acquired by Piezo Motion Corp.
The technology is now accessible for a variety of motion control applications, at scale, in an expanding number of industries thanks to the purchase, which saw Piezo Motion produce a full product line of precision energy-efficient piezo motors.
In order to deliver high quality and exceptional performance for OEM applications that demand precise, efficient, reliable, and economical motion control solutions with good power density and quiet operation in a lightweight package, Piezo Motion recently released rotary motors, available with both open-loop and closed-loop control.
The linear actuator from Piezo Motion is made of incredibly strong and light materials, which allows it to combine low cost with excellent precision and lightning-fast speeds. They are extremely energy-efficient for motion applications since they use no power when in the hold position while still exerting a large force.
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