Monolayer

Piezoelectric products can be divided into the following segments: monolayer products with a single layer of piezoelectric material and multilayer products with multiple layers of piezoelectric materials.

These are the topics covered by this page:

Basics on monolayer

Monolayer piezoceramic material is defined a product with a single layer of piezo with electrically conductive metal electrodes on two opposing sides. These electrodes are used for poling the material (rectifying the electrical dipoles like in magnetic materials) and used for electrical contacts when the component is used in an application. Monolayer piezo components are manufactured by compaction of the piezoceramic powder by conventional processes like uni-axial pressing, isostatic pressing and extrusion.

Common applications

How it works
Sonar-based systems all rely on sonar transducers to generate a sound wave or pulses of sound. Sonar systems can be divided into three categories depending on the complexity of the sonar. The complexity of the sonar decides how much information you can extract from the sonar. Underwater imaging is the most complex type of sonar, where the returning echoes of the sound waves are displayed in detailed 2D or 3D mapping. The varieties of piezoelectric transducers go from simple single transducer up to sophisticated multielement phased arrays of transducers. Which piezo elements can be used for underwater imaging?
Devices for underwater imaging are usually fitted with piezo components made of soft piezoelectric materials (NCE51, NCE53). They have various shapes and sizes depending on the application. Noliac can deliver single elements of piezoelectric blocks in sizes up to 100x100 mm, which could be consequently diced to a matrix of elements with uniform properties."> Monolayer

Common applications for monolayer piezo products are large devices for sonar using discs, rings and plates up to several centimetres in diameter, knock sensors for automotive engines using rings approximately 2 centimetres in diameter and sensors for accelerometers using plates and tubes with dimensions less than a centimetre.

Have a look at our examples of applications using piezo components

Go to the next page of this tutorial (Multilayer)

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Performance Dimensions

Max operating voltage / V

Min

Min free stroke / µm

Min

Min estimated blocking force / N

Min

Length or outer diameter / mm

Min

Max

Width or inner diameter / mm

Min

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Max height / mm

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Plate actuators
Plate stacks
Ring actuators
Ring stacks
Plate benders
Ring benders
Shear plate actuators
Shear stacks
2D actuators
High temperature stacks
Damage tolerant stacks

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