CORE MORROW
Piezo Nano Motion

DECLARATION

Thank you for choosing CoreMorrow products!

This user manual is applicable to the S30 Piezo Tip/Tilt Platform. For your smooth and correct use of this product, please read this manual carefully before use and follow the relevant instructions for installation and use. Improper operation may cause injury to the operator and/or damage to the product. Therefore, it is required that the entire installation and operation process should be completed by professionals with a certain foundation and understanding of product principles, or under the guidance of a professional.

If you disassemble or transform the product without permission, CoreMorrow will not be responsible for any consequences arising therefrom.

To change the product model and other false sales of CoreMorrow's products are illegal. Users should be vigilant. Once found, you should actively report or contact CoreMorrow, jointly crack down on illegal acts, and prevent fraud and economic losses. CoreMorrow will investigate for the legal responsibility of the illegal subject and related parties.

With the continuous development and innovation of technology, CoreMorrow will timely add the latest information to the manual as required. If you need, please contact CoreMorrow, or visit the website www.coremorrow.com for download. CoreMorrow apologizes for any inconvenience caused to you.

1. Introduction

1.1 Purpose and content

This manual is primarily for your smooth and correct use of the S30 Piezo Tip/Tilt Platform. The manual contains all the necessary information for the S30 Piezo Tip/Tilt Platform, including precautions during installation and use.

1.2 Symbol and meaning

• ⚠️ DANGER: Improper handling may cause injury to the operator.
• ❗ Attention: Improper handling can cause damage to the equipment.
• ▶️ No order between items.
• 1. Please operate in order.
• 2.

1.3 Users of This Manual

The intended user of this manual has knowledge of piezoelectric products and controllers and possesses a certain basis for their installation and use.

1.4 Manual Lost and Reissued

If this manual is lost, please contact CoreMorrow. CoreMorrow will send you the latest version of the user manual.

2. Safety Guide

The S30 Piezo Tip/Tilt Platform is designed with the most advanced technology and safety standards. For your own safety and the correct use of the product, please observe the following points when in use:

• A change in temperature and pressure will charge the piezoelectric actuator. The actuator will remain charged for a period of time when it is disconnected from the controller, so the operator should pay attention to this when in use.
• Do not disassemble the S30 Piezo Tip/Tilt Platform.
• Discharge S30 before mounting, which can be done by connecting to the controller.
• Do not unplug the wire connecting to the controller during operation.
• Before use, check whether the connection wire of the product is in good condition and whether the product and the controller are effectively grounded. During operation, strictly standardize the operation. Do not touch the product (up to 150V voltage) with your hand when power is on, in case of danger.

In order to prevent damage to the product caused by improper operation, the following points should be paid attention to when in use:

• The S30 Piezo Tip/Tilt Platform should be used in a dust-free, oil-free, and lubricant-free environment.
• As the product is designed with a flexible structure, it is recommended that the load should not exceed the product's load capacity. When loading, DO NOT apply torque force and DO NOT pry or twist the load surface, so as not to damage the structure.
• Recommended voltage range is 0~120V for long-term use and lifetime.
• Do not disassemble the product to avoid damage.
• Avoid stretching and bending the cable interface to prevent damage to the cable.
• Use the dedicated cable provided by CoreMorrow to connect the S30 Piezo Tip/Tilt Platform to the controller.
• Do not connect via an extension cable casually. If you need a longer cable, please contact CoreMorrow.

3. Product Overview

3.1 Product Introduction

The S30 Piezo Tip/Tilt Platform has the following advantages:

High performance piezo stack:

The S30 Piezo Tip/Tilt Platform is driven by a highly reliable ceramic actuator with a fully insulated structure, resulting in superior performance and service life compared to traditional actuators. The insulating layer effectively prevents the piezoelectric ceramic from being damaged when exposed to moisture, ensuring the stability of piezoelectric ceramics under extreme circumstances. Compared with traditional driving mechanisms, there are no transmission parts and friction, meaning the ceramic actuator offers no rebound, no maintenance, and no wear.

Flexible hinge structure:

The S30 Piezo Tip/Tilt Platform adopts a flexible hinge mechanism, providing advantages of no friction and high positioning accuracy. A flexible hinge is an element not affected by static and dynamic friction, based on the elastic deformation of metal material (e.g., steel), with no rolling or sliding parts. This flexible unit offers very high load capacity and stiffness. Hinge guides require no maintenance and exhibit no wear and tear, making them suitable for a wide range of temperatures without the need for lubricating oil.

Strain sensor:

Strain sensors detect position information through their own expansion. They are fixed in the proper position of the transmission part and measure the displacement of the moving part. This type of position measurement is made by contact and indirect measurement, where the displacement of the moving platform is measured by a measuring lever, guide hinge, or piezoelectric ceramic stack.

The S30 Piezo Tip/Tilt Platform has a travel range of θx and θy up to 3mrad. It adopts a flexible hinge structure as a whole and features no mechanical friction, fast response speed, high repeatable positioning accuracy, and high flexibility, making it easy to operate and capable of meeting different applications. This product can also be customized according to specific needs.

3.2 Principle

The piezo control principle is as follows:

The Piezo Tip/Tilt Platform (two-axis motion) is based on a parallel kinematic design with a coplanar axis and moving platform. Four piezo actuators are placed at a 90° angle interval with paired differential control distribution. Two pairs of differentially driven actuators provide the highest achievable angular stability over a wide temperature range. Its tilt motion is achieved by two pairs of piezo actuators in a push-pull motion, controlled by a bridge connection circuit.

The deflection angle of the S30 Tip/Tilt Platform can be calculated as follows:

The deflection angle in θx:

Wherein:

• LPZT1 - PZT1 Displacement
• LPZT2 - PZT2 Displacement
• a - The distance between two piezo actuators

Similarly, the deflection angle in θy:

Dynamic characteristics of S30 Tip/Tilt Platform:

Operating frequency of S30 depends on its resonant frequency. In order to estimate its resonant frequency after loading a mirror (moving surface and mirror), the moment of inertia of the mirror must be taken into account. The moment of inertia of the mirror is calculated as follows:

The moment of inertia of a cylindrical mirror:

The moment of inertia of a rectangular mirror:

Wherein:

• M - Quality of mirror
• Im - The moment of inertia of mirror
• L - Length of the mirror perpendicular to the rotation axis
• H - Thickness of mirror
• T - Distance between the axis of rotation and the surface of the platform
• R - Radius of mirror

The resonant frequency after loading the mirror can be calculated by using the unloaded resonant frequency and the moment of inertia of the mirror. The calculation formula is as follows:

Wherein:

• f' - Resonant frequency after loading mirror
• I₀ - The moment of inertia of unloaded moving surface
• f⁰ - Unloaded operating Frequency
• Im - The moment of inertia of mirror

3.3 Product Features

• Maximum deflection angle: 3mrad
• High precision sensor, high positioning accuracy
• Sub-μrad resolution
• Fast response

3.4 Motion Direction

Table 1. S30 Wire Identification and Motion Direction

4. Operating environment

• Operating temperature: -20~80℃
• Environment free of dust, clean, and non-corrosive substances
• Relative humidity: <60%
• Recommended voltage between 0 and 120V for long-term and high-reliability operation.

5. Installation and operation

Safety checks should be carried out before installation, such as verifying the connection wire is not damaged or broken, and that the drive power supply is grounded, etc.

5.1 Installation and Precautions

The installation diagram of the S30 is as follows:

1. Before attaching the mirror, please clean the mirror and motion surface. After the mirror is glued, please wait for a period of time until the adhesive solidifies.
2. You need to use M2 screws to mount the S30. You can also adopt an adapter; CoreMorrow offers many adapters for your choice, as shown below. Before mounting, please clean the mounting surface and adapter.
3. Mount S30 on the mounting surface directly or by an adapter. Please contact CoreMorrow if you do not mount it with a stand, such as for lean or lateral mounting.
4. Grounding protection for connection, as shown in Figure 7:
5. Connect the S30 connector with the controller.

Mounting notes:

• Do not knock the moving part of the product to prevent flexure hinge deformation affecting movement accuracy, or even damage the product.
• Do not drop mirror adhesive into the gap at the moving end, and do not place other objects to hinder movement, so as not to affect accuracy or damage the equipment.
• Please select appropriate screws for the mounting connection to prevent the mounting from being loose and the mirror falling off, causing permanent damage.
• Please pay attention to standard operation during the whole mounting and operation process. Users should carry out relevant operation under the guidance of professionals.

5.2 Load

When mounting the load, ensure that the load quality is less than the maximum load capacity of S30, and try to mount the load in the center of the moving surface. The correct position to mount the load is shown below.

For the protection of the product, CoreMorrow does not recommend a load that is too high. If a high load must be used, please appropriately lower the position of the center of gravity of the load.

The wrong mounting way is shown in the figure below.

It is forbidden to mount the load on one side of the moving platform, which will cause serious damage to the product, as shown in the figure below.

Notice:

• When mounting the load, tighten the load slowly. The torque should not be too large to prevent damage to the mechanism.
• Avoid stretching and bending cables.
• Use the dedicated cable provided by CoreMorrow to connect S30 and the controller.
• Do not connect via an extension cable casually. If you need a longer cable, please contact CoreMorrow.

5.3 Operating

Please reconfirm the following information before turning on the power:

• The operating environment meets the operating environment requirements of S30.
• Fixed screws must be tightened.

After the above information is confirmed, relevant controller operations can be carried out:

1. Please read the user manual of the controller carefully before operation, and then start the controller.
2. Set the controller's output voltage to zero first.
3. Check for any abnormal phenomenon, then input the voltage value (via keyboard or analog control) according to the specified input voltage range.
4. Operate normally within the rated voltage range of piezoelectric ceramics (0~120V, maximum 150V).
5. After use, please carry out voltage reset operation.

Please handle with light steps when S30 is in operation; do not knock the product, so as not to affect the use of the product or even damage the product.

In order to achieve better motion precision of S30, it is recommended to use CoreMorrow's supporting controller. Please refer to the user manual of the controller for the specific operation to ensure correct operation before relevant operation.

Notice:

• Do not remove the grounding protection during operation. If you need to remove it temporarily, please reconnect the grounding protection before starting it again.
• The driving voltage shall not exceed the voltage range of S30.
• If any abnormal noise or oscillation occurs during use, turn off the power immediately and check the parameter settings.

6. Transportation and inspection

6.1 Transportation

This product is packed in cartons. Transportation is carried out under the specified packaging conditions. This product can be transported by various means of transport under normal circumstances. In the process of transportation, direct rain and snow, corrosive substances, strong collision, extrusion, irregular placement, and other improper behaviors should be avoided as far as possible.

6.2 Open-Box Inspection

Inspection content:

• Before opening the package, please check the outer packing carefully to see if there is any breakage, wetting, dampness, deformation, etc.
• Please check the completeness of package contents one by one according to the supply contract and packing list.
• Check whether the surface of the product has obvious damage.
• Check whether the product identification is clear and complete.
• Check whether the connector is loose and the connector wire is broken or damaged.

In case of any of the above, please make a detailed record and take a photo of it. Meanwhile, please contact CoreMorrow for processing immediately.

Attention:

• Please handle with care when opening the package, so as not to knock against the product and cause permanent damage to it.
• Please do not use heavy tools or rough methods to open.
• Please do not discard all the packaging materials which are needed for repair and return.

7. Maintenance and Treatment

7.1 Problem Handling

FAQ are shown in the table below:

If the user cannot solve the problem by himself in the process of using, please record the problem in detail and contact CoreMorrow. Professional technical personnel will help to solve.

Problems caused by improper operation are not covered by the warranty. CoreMorrow is not responsible for any problems caused by dismantling products without permission.

7.2 Daily maintenance

If the product is not used for a long time, please store it in a dust-free, well-ventilated, clean, and non-corrosive indoor environment after packaging.

In daily maintenance, please do not loosen the bolts on the product structure, so as not to affect the movement accuracy of the product.

Daily cleaning:

Please disconnect the product from the controller before cleaning the surface of the product.

When cleaning, gently wipe the surface of the product with a towel dipped in a small amount of detergent, and then clean it with alcohol. Please do not use an ultrasonic cleaner. When cleaning the surface, try not to pick up the product. If you have to pick up the product, it is better to put sponge under the product for protection. The product should not be too high from the sponge, in case the product falls off.

7.3 Disposal

Waste products should be disposed of according to national and local rules and regulations. In order to fulfill its responsibility as a product manufacturer, CoreMorrow will dispose of all old equipment on the market in an environmentally friendly manner. If you have equipment that cannot be disposed of, you can ship it to CoreMorrow.

Address: Building I2, No.191 Xuefu Road, Nangang District, Harbin, HLJ, China
Tel: +86-451-86268790

8. Customer Service

If you have questions about the products you are currently using, please let CoreMorrow know the following information:

• Product model and relevant number
• The controller model
• Software driver version
• Computer operating system that installs supporting software

9. Contact us

CoreMorrow Ltd.

Tel: +86-451-86268790

Email: info@coremorrow.com

Website: www.coremorrow.com

Address: Building I2, No.191 Xuefu Road, Nangang District, Harbin, HLJ, China

CoreMorrow Official and CTO WeChat are below (QR codes excluded).