COREMORROW P33 Piezo Tip-Tilt Platform User Manual

COREMORROW P33 Piezo Tip-Tilt Platform

This document describes the following products:

• P33.T1SF/Y P33.T1KF/Y
• P33.T3SF/Y P33.T3KF/Y
• P33.T5SF/Y P33.T5KF/Y
• P33.T8SF/Y P33.T8KF/Y
• P33.T2SF/Y P33.T2KF/Y
• P33.T4SF/Y P33.T4KF/Y
• P33.T6SF/Y P33.T6KF/Y

DECLARATION

• Thank you for choosing Core Tomorrow (CoreMorrow for short) products!
• This user manual is applicable to P33 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 in the manual for installation and use. Improper operation may cause injury to the operator and/or damage to the product, so it is required that the entire installation and operation process should be completed by professionals with a certain foundation and a certain understanding of product principles, or under the guidance of a professional.
• If you disassemble or transform the product without permission, our company will not be responsible for any consequences arising therefrom.
• To change the product model and other false sales of our company’s products are illegal, users should be vigilant. Once found, you should actively report or contact our company, 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 us, or to our website www.coremorrow. com for download, we apologize for any inconvenience caused to you.

Introduction

Purpose and content

• This manual is mainly for your smooth and correct use of P33 Piezo Tip/Tilt Platform
• The manual contains all the necessary information for P33 Piezo Tip/Tilt Platform.
• Introduction of the precautions during installation and use

Symbol and meaning

• DANGER: Improper handling may could cause injury to the operator.
• Attention: Improper handling can cause damage to the equipment.
• No order between items.
• Please operating in order.

Users of This Manual
The default user of this manual has knowledge of piezoelectric products and controllers, and has a certain basis for their installation and use.

Manual Lost and Reissued
If this manual is lost, please contact CoreMorrow. We will send you the latest version of the user manual.

Safety Guide

P33 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, and the actuator will remain charged for a period of time when it is disconnected from the controller, so the operator should pay attention to when in use.
• Do not disassemble P33 Piezo Tip/Tilt Platform.
• Discharge P33 before mounting, which can be done by connecting to the controller.
• Do not unplug the wire connecting with 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 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 the following points when in use. P33 Piezo
• Tip/Tilt Platform should be used in a dust-free, oil-free and lubricant-free environment.
• As the product is designed with flexible structure, it is recommended that the load should not exceed load capacity of product. 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 P33 Piezo Tip/Tilt Platform to controller.
• Do not connect via an extension cable casually, if you need a longer cable, please contact CoreMorrow.

Product Overview

Product Introduction
P33 Piezo Tip/Tilt Platform has the following advantages:

High performance piezo stack:
P33 Piezo Tip/Tilt Platform is driven by a highly reliable ceramic actuator with a fully insulated structure, so its performance and service life are far better than the traditional actuator. The insulating layer can effectively prevent the piezoelectric ceramic from being damaged when exposed to moisture. Therefore, the stability of piezoelectric ceramics can be guaranteed under extreme circumstances. Compared with traditional driving mechanism, there are no transmission parts and friction. Therefore, ceramic actuator has the characteristics of no rebound, no maintenance, and no wear, etc.

Flexible hinge structure:
P33 Piezo Tip/Tilt Platform adopting flexible hinge mechanism has advantages of no friction, high positioning accuracy. Flexible hinge is an element not affected by static and dynamic friction, based on the elastic deformation of metal material (e.g., steel) , there is no rolling and sliding parts. Flexible unit has very high load capacity and stiffness. Hinge guide needs no maintenance and no wear and tear. Suitable for a wide range of temperatures, no lubricating oil is required.
Strain sensor Strain sensor detects the position information by its 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. So the displacement of the moving platform is measured by measuring lever, guide hinge, or piezoelectric ceramic stack. P33 Piezo Tip/Tilt Platform has a travel range of θx θy up to 12.5mrad. It adopts flexible hinge structure as a whole and features no mechanical friction, fast response speed, high repeatable positioning accuracy, high flexibility, easy to operate, so it can meet different applications. This product can also be customized according to the needs.

Principle
The piezo control principle is as follows:

Piezo Tip/Tilt Platform(two-axis motion) is based on parallel kinematic design with coplanar axis and moving platform. Four piezo actuators are placed at a 90° angle interval, 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 P33 Tip/Tilt Platform can be calculated as follows:

The deflection angle in θx:

Wherein:

Similarly, the deflection angle in θy:

Dynamic characteristics of P33 Tip/Tilt Platform:
Operating frequency of P33 depends on its resonant frequency. In order to estimate its resonant frequency after loading mirror (moving surface and mirror), the moment of inertia of mirror must be taken into account. The moment of inertia of 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 of after loading mirror can be calculated by using unloaded resonant frequency and the moment of inertia of mirror. The calculation formula is as
follows:

Wherein

Product Features

• Maximum deflection Angle: 12mrad
• High precision sensor, high positioning accuracy
• Sub-μrad resolution
• Fast response

Motion Direction

FIG. 3 The Motion Direction of P33 Piezo Tip/Tilt Platform

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.

Installation and operation

Safety check should be carried out before installation, such as whether the connection wire is damaged or broken, whether the drive power supply is grounded, etc.

Installation and Precautions
Installation diagram of P33 is as follows:

1. Before attach the mirror, please clean the mirror and motion surface. After the mirror is glued, please wait for a period of time until adhesive solidify. And you can use a mirror adapter, as shown below.

2. You need to use M3 screws to mount the P33, and you also can adopt a adapter, and we have many adapters for your choice, as shown below. And before mount, please clean the mounting surface and adapter.
3. Mount P33 on the mounting surface directly or by a adapter. Please contact us, if you don’t mount it with stand, such as lean or lateral mounting.

4. Grounding protection for connection, as shown in Figure 7:

Mounting notes:

• Do not knock the moving part of the product to prevent flexure hinge deformation affecting the movement accuracy, or even damage the product.
• Do not drop the mirror adhesive into the gap at the moving end, and do not have other objects to hinder the movement, so as not to affect the accuracy or damage the equipment.

• Please select appropriate screw for the mounting connection, to prevent the mounting is not firm and mirror falls 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.

Load
When mounting the load, ensure that the load quality is less than the maximum load capacity of P33, 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, we do not recommend that the load is too high. If a high load must be used, please appropriately low 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 P33 and the controller.
• Do not connect via an extension cable casually, if you need a longer cable, please contact CoreMorrow.

Operating
Please reconfirm the following information before turning on the power:

• The operating environment meets the operating environment requirements of P33.
• 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’ output voltage to zero first.
3. Check no abnormal phenomenon, then input voltage value (via keyboard or analog control) according to specified input voltage range.
4. Operating normally within the rated voltage range of piezoelectric ceramics (0~120V, maximum 150V).
5. After use, please carry out voltage reset operation.
   Please take light steps when P33 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 P33, it is recommended to use our company’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 the 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 P33.
If any abnormal noise or oscillation occurs during use, turn off the power immediately and check the parameter setting.

Transportation and inspection

Transportation
This product is packed in cartons. Transportation is carried out under the 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.

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 us 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 way to open.
Please do not discard all the packaging materials which are needed for repair and return.

Maintenance and Treatment

Problem Handling
FAQ are shown in the table below.

No displacement or less displacement

| The connection wire is not connected properly or poor contact|

Check the connection wire

Excessive load| Load according to the product’s load capacity
Sensor zero drift| Check the sensor

Low accuracy

| Mountingsurface unevenness| Mount the platform on a flat surface
Loose connection| Fasten connection
Wrong connection| Check if the wiring is correct

Vibration or inaccurate positioning at startup

| Incorrect input control parameters| Stop immediately and check the parameter Settings

Resonance occurs

| Make drive frequency less than resonance frequency

If the user cannot solve the problem by himself in the process of using, please record the problem in detail and contact CoreMorrow, and 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.

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 the 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 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 the sponge under the product for protection. The product should not be too high from the sponge, in case the product falls off.

Disposal
Waste products should be disposed according to national and local rules and regulations. In order to fulfill our responsibility as a product manufacturer, we will dispose all old equipments on the market in an environmentally friendly manner. If you have equipment that cannot be disposed, you can ship it to CoreMorrow.
Address: Building I2, No.191 Xuefu Road, Nangang District, Harbin, HLJ, China
Tel: +86-451-86268790

Connector

Driving Line and Sensing Line
Using E80 piezo controller, the platform’s connector model is J14A-26ZKB, connecting line is defined as follows:

Customer Service

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

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

Contact us

Harbin Core Tomorrow Science & Technology Co., 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:

References

• 产品中心 - 芯明天-压电纳米定位与控制系统制造商

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