Piezoelectric actuators have become an integral part of modern technology. They are used in a wide range of applications that require precise movement, fast response times, and high force output. One of the most popular types of piezoelectric actuators is the piezo bimorph actuator. In this blog post, we’ll take a closer look at what a piezo bimorph actuator is, how it works, and some of its applications.
What is a Piezo Bimorph Actuator?
A piezo bimorph actuator is a type of piezoelectric actuator that consists of two piezoelectric elements bonded together. When a voltage is applied to the actuator, the piezoelectric elements expand or contract, causing the actuator to bend. The bending motion of the actuator is due to the fact that one of the piezoelectric elements expands while the other contracts.
Piezo bimorph actuators can be made from a variety of materials, including lead zirconate titanate (PZT), which is the most commonly used material due to its high performance and durability.
How Does a Piezo Bimorph Actuator Work?
The working principle of a piezo bimorph actuator is based on the piezoelectric effect. When a voltage is applied to the piezoelectric elements of the actuator, they expand or contract, causing the actuator to bend. The bending motion is due to the fact that one of the piezoelectric elements expands while the other contracts, causing the actuator to curve.
The bending motion of the actuator can be controlled by changing the voltage applied to the piezoelectric elements. This allows for precise control of the movement of the actuator.
Applications of Piezo Bimorph Actuators
Piezo bimorph actuators are used in a wide range of applications, including:
- Optical systems: Piezo bimorph actuators are used in optical systems, such as laser beam steering and optical fiber alignment. The precise control of the bending motion of the actuator allows for accurate positioning of optical components.
- Medical devices: Piezo bimorph actuators are used in medical devices, such as surgical tools and ultrasound imaging. The fast response time and precise control of the bending motion make them ideal for these applications.
- Aerospace and defense: Piezo bimorph actuators are used in aerospace and defense applications, such as controlling the movement of optical components and in missile guidance systems.
- Robotics: Piezo bimorph actuators are used in robotics applications where precise control of movement is required. They can be used in robotic arms, grippers, and other types of robots.
- Microfluidics: Piezo bimorph actuators are used in microfluidics applications where precise control of fluid flow is required.
Piezo bimorph actuators are a versatile and reliable type of piezoelectric actuator. They are widely used in various industries and applications, including optical systems, medical devices, aerospace and defense, robotics, and microfluidics. As technology advances, we can expect to see even more applications for piezo bimorph actuators in the future. Contact us today at 1-650-375-7003 to learn more.