With the development and progress of piezo application technology, piezo products are used in more and more experimental environments. Mirror adjustment mounts are very common in many laboratories. Traditional optical adjustment mounts use manual adjustment of threaded screws to adjust the deflection angle of the mount, and the appearance is similar to the figure below. Although the price and cost are low, there are many adverse effects, such as the inconvenient operation and the low precision.
Piezo mount / Piezo mirror Adjustment mount
In order to improve the precision of the mirror adjustment mount, CoreMorrow applies piezo drive technology to it. The integration of piezo technology has made a qualitative leap in mirror mount products, and piezo mounts have also emerged as the times require with the integration of piezo technology, which significantly improves the adjustment convenience and accuracy of this type of adjusting mount. CoreMorrow T25N81 series piezo mirror mounts adopt the principle of piezo stick-slip micro-motion technology with ±5° adjustment range, large-angle adjustment and ultra-high sensitivity of 0.7μrad.
Features
• 2D θx, θy deflection motion
• Sub-micro-radian angular resolution
• Power-off retention (self-locking)
• Electric control, flexible operation, not limited by small space
Technical parameters of T25N81 series piezo mirror mount
• Model: T25N81K8
• Snap-on mirror diameter: 25.4mm
• Adjustable degrees of freedom: θx, θy
• Sensitivity: 0.7μrad
• Adjustable range: ±5°
Piezo driven screws by stick-slip principle
What is the difference between piezo mounts and traditional mounts?
The key is in the drive lever. The T25N81 series piezo mirror mounts replace the screws in the two drive shafts in the traditional mirror mounts with the high-precision electronically controlled piezo screws developed by CoreMorrow. The piezo screws adopt the piezo stick-slip driving principle technology, perfectly combined piezo high-precision drive and adjustment mount.
Piezo stick-slip drive principle
The piezo stick-slip drive motor converts the linear motion of the piezo ceramic into the rotation of the screw through precise design and mechanical cooperation. In this design, the pliers on both ends of the piezo ceramic actuator are in contact with the screw, clamping the screw on both sides. Piezoceramic actuators rapidly expand and contract to achieve rotational motion.
Schematic diagram of piezo screw and piezo stick-slip principle
Two piezo motors (ie, piezo screws) are integrated into the 2D deflection piezo mirror mount. Piezo screws can be integrated not only into mounts, but also into other motion platforms.
Vacuum version piezo screw
CoreMorrow not only develops and produces piezo screws for use in normal environments, but also vacuum version for motion control applications in a vacuum environment, so that it can be used in special environment that cannot be manually adjusted and require high-precision motion control.
Piezo mount Controller-E53.C4K
The E53.C4K series piezo controller is dedicated for piezo mirror mounts developed and designed by CoreMorrow for small-volume applications. It uses 24VDC power supply with small size, and can drive two 2D piezo mirror mounts by selector switch.
Features
• Used for driving piezo motors, such as piezo screws/piezo mirror mounts, etc.
• 4-channel version can be toggled to drive two 2D piezo mounts or four piezo screws
• PC software control
• 24VDC/1A power supply
Technical parameters of piezo screw controller
Model: E53.C4K
Number of channels: 4
Power supply: 24VDC/1A
Static power consumption: <5WD/A
Converter: 16bit
Communication interface: USB, RS-422, RS-232
Operating temperature: 0~50℃
Piezo Screw Connector: RJ11Size: 150×80×27.5mm^3
Weight: 0.36kg
In addition to the above-mentioned piezo mirror mounts, CoreMorrow has also developed and designed a variety of piezo mirror mounts, such as piezo mirror mounts used in φ50mm mirrors, φ100mm mirrors or cage structures.
T100N81K13-B2 piezo mount (for φ100mm mirrors)
T25N81K8-C1 Piezo mirror mount (For Cage Structure)
Original link: http://www.coremorrow.com/en/newsshow-66-843-1.html