PZT
페이지 정보
본문
The Piezo Effect & Piezo Manufacturing Processes: How do they work? Engineered Piezo Transducers
The Piezo Effect and Manufacturing Processes: In this video, Dr. Patrick Pertsch, head of PI Ceramic's Multilayer Group explains how the piezo effect works and how piezo transducers are designed and manufactured at the PI Ceramic factory. Industrial and research applications benefit from PI's extensive know-how, experience and great flexibility in the design and manufacture of piezoelectric ceramics.
Details:
Piezo transducers utilize the special properties of the piezo-electric effect. The piezo effect occurs when a force acts on a polarized piezoceramic body and induces an electrical charge.
Conversely the body expands when an electrical voltage is applied. A great deal of experience and manufacturing knowledge of ceramic components is necessary to be able to make use of two piezoelectric properties effectively.
The production begins with the composition of the raw materials. We make our own ceramic powder and mix it according to the customer needs. The resulting spray granulate is pressed into the desired shape. There are virtually no restrictions on the variety of possible geometries.
During subsequent reworking it is possible to drill extremely fine holes and form complex contours using special machines equipped with diamond tip tools
In order to apply an electrical voltage to ceramic component it is metallized with thick or thin electrodes during an automated process
Our extensive know-how allows us to carry out further assembly steps so that our customers can use the sensitive ceramic components without any problems
In clean rooms like this the piezo components are glued and soldered carefully with high precision and mounted into metal housings finished with connecting wires, flexible circuit boards or connectors
This simplifies the integration process into the final application of the product.
Customers receive a specific custom-fit product which can be used directly in their production line for both actuator (piezo motion) and sensor applications.
Now let's go and take a look at how products are used after delivery.
The key to success can often be found in small details even in large systems. This is how Seco uses our components for monitoring wind turbines
More on piezo transducers: http://www.pi-usa.us/blog/?s=piezo+transducer
and http://www.piceramic.com.
Ferroelectric Behaviour in PZT Capacitor Dielectrics
A rather rushed video about ferroelectric behaviour of some common capacitor dielectrics at low temperatures.
As a result of some vaguely related work on some fun with magnetic logic I noticed non-linearity in monolithic ceramic capacitors. After a bit of research and experimentation this video talks a bit about my test circuit, why such capacitors are still useful and how one might use the ferroelectric effect they demonstrate for memory.
Errata:
The gain of my buffers is 2 (not unity), the resistors are the same value, so the inverting input gets half the voltage at the output and the output will swing to follow twice the non-inverting input. (Face palm!!)
I probably should have talked about the floating gate of flash and more about RAM and Flash cells in general, but you can read all the fascinating detail elsewhere.
The exact composition of the device dielectric is unknown, I am assuming it is mostly PZT, but manufactures use a great deal of different add-mixture materials to engineer the dielectric for the application. I also tried PZT piezo materials but saw no significant ferroelectric effect regardless of temperature.
pzt material
The Piezo Effect and Manufacturing Processes: In this video, Dr. Patrick Pertsch, head of PI Ceramic's Multilayer Group explains how the piezo effect works and how piezo transducers are designed and manufactured at the PI Ceramic factory. Industrial and research applications benefit from PI's extensive know-how, experience and great flexibility in the design and manufacture of piezoelectric ceramics.
Details:
Piezo transducers utilize the special properties of the piezo-electric effect. The piezo effect occurs when a force acts on a polarized piezoceramic body and induces an electrical charge.
Conversely the body expands when an electrical voltage is applied. A great deal of experience and manufacturing knowledge of ceramic components is necessary to be able to make use of two piezoelectric properties effectively.
The production begins with the composition of the raw materials. We make our own ceramic powder and mix it according to the customer needs. The resulting spray granulate is pressed into the desired shape. There are virtually no restrictions on the variety of possible geometries.
During subsequent reworking it is possible to drill extremely fine holes and form complex contours using special machines equipped with diamond tip tools
In order to apply an electrical voltage to ceramic component it is metallized with thick or thin electrodes during an automated process
Our extensive know-how allows us to carry out further assembly steps so that our customers can use the sensitive ceramic components without any problems
In clean rooms like this the piezo components are glued and soldered carefully with high precision and mounted into metal housings finished with connecting wires, flexible circuit boards or connectors
This simplifies the integration process into the final application of the product.
Customers receive a specific custom-fit product which can be used directly in their production line for both actuator (piezo motion) and sensor applications.
Now let's go and take a look at how products are used after delivery.
The key to success can often be found in small details even in large systems. This is how Seco uses our components for monitoring wind turbines
More on piezo transducers: http://www.pi-usa.us/blog/?s=piezo+transducer
and http://www.piceramic.com.
Ferroelectric Behaviour in PZT Capacitor Dielectrics
A rather rushed video about ferroelectric behaviour of some common capacitor dielectrics at low temperatures.
As a result of some vaguely related work on some fun with magnetic logic I noticed non-linearity in monolithic ceramic capacitors. After a bit of research and experimentation this video talks a bit about my test circuit, why such capacitors are still useful and how one might use the ferroelectric effect they demonstrate for memory.
Errata:
The gain of my buffers is 2 (not unity), the resistors are the same value, so the inverting input gets half the voltage at the output and the output will swing to follow twice the non-inverting input. (Face palm!!)
I probably should have talked about the floating gate of flash and more about RAM and Flash cells in general, but you can read all the fascinating detail elsewhere.
The exact composition of the device dielectric is unknown, I am assuming it is mostly PZT, but manufactures use a great deal of different add-mixture materials to engineer the dielectric for the application. I also tried PZT piezo materials but saw no significant ferroelectric effect regardless of temperature.
pzt material
... 
댓글목록
등록된 댓글이 없습니다.
