[讨论]听说剑桥的振镜是最快的？

darktiger

听说剑桥的振镜是最快的？那它到底有多快呢？？那里可以下载到他的资料和说明书看看呢！

darktiger

从geloe上搜到了！！果然够快 小步距100us啊！

坚哥仔

速度不是衡量振镜的唯一指标.

我的振镜能做到90us,但线性,振动太大.

还要解决精度,线性,最大角度,耐温,噪音,耐用,保护等问题.

sohappylym

速度的瓶颈又不在振镜这里

又不是把振镜拿来赛跑

再说，负载越轻速度可以提高，镜片和扫描头的设计也会很大程度影响到最终扫描速度，激光标刻的应用是个综合性非常强的因素，上海通用的那个公认了慢的东东偶都跑出比CTI快的速度，楼主莫非是做演示的？

darktiger

那老外的飞行打标！10k字符/s 是怎么做出来的？

loveme

[B]以下是引用[I]darktiger[/I]在2006-7-11 13:35:00的发言：[/B][BR]那老外的飞行打标！10k字符/s 是怎么做出来的？

单纯的用振镜来做是做不到的.

或者这是点阵式的,一个字由很少的点的组成的,点与点之间有比较大的间隙的.

y11117

是的，速度太快了，激光器这边的调制跟不上来呀，

出来的就是点，而不是线了，

所以打标机的瓶颈不在振镜的速度上，

目前国产的振镜的速度已经够用了，只是精度，和外观的大小上和进口的还差一大截

laser10001

有很多系列的，不知道你需要什么型号的拿来干嘛的？给你个最便宜的那个型号的参数看看吧。我这边提供剑桥振镜出售及维修服务。159-901-990-65顾先生。
The 6860 galvanometer series combines Cambridge Technology's Moving Magnet Actuator technology and our patented moving dielectric capacitive position detector design. This combination offers superior positioning speed and higher resolution accuracy and repeatability of any moving magnet galvanometer. The 6860 family scanning systems can be designed and optimized for speed, size, cost and accuracy with typical beam diameters between 5 and 30 mm.




Features
High Position Accuracy and Repeatability: with Moving Magnet Actuators CTI's innovative capacitive position detector provides the highest resolution accuracy and repeatability in a moving magnet galvanometer design. This capacitive position detector coupled with the positioning precision of the moving magnet actuator provides high positioning linearity, repeatability and stability over time and temperature. In combination with our 671 servo drivers, the 6860 models can achieve 8 microradians short term repeatability.
Galvo Speeds and Step Response Times: The 6860 series is specially designed to maximize the system's performance for high speed applications. With our advanced actuator design in conjunction with our 678 servo drivers, the 6860 series can reach speeds up to 1 kHz with step response times in the 0.5 millisecond range for small angle movements.
High System Performance and Reliability Over Time: Superior product lifetime and reliability result from disciplined design technique, the best in bearing technology and quality manufacturing processes and workmanship. Cambridge Technology's high standards of manufacturing quality guarantees the performance consistency that you need to design the high quality systems demanded in today's competitive marketplace.



Supports 5 mm and 10 mm apertures.

Galvanometer Specifications
All Position Detector specifications apply with Cambridge Technology servo driver after a 30 second warm-up. All angles are in mechanical degrees. Consult manual for complete operating instructions.

Mechanical Specifications
Rated Angular Excursion:   40°
Rotor Inertia:   0.6 gm*cm2, +/-10%
Torque Constant:   9.3X104dyne-cm/amp, +/-10%
Maximum Coil Temperature:    110°C
Thermal Resistance (Coil to Case):   1.5°C/Watt, Max

Electrical Specifications/Drive Mechanism
Coil Resistance:   1.5 Ohms, +/-10%
Coil Inductance:   160uH, +/-10%
Back EMF Voltage:   0.17mV/degree/sec, +/-10%
RMS Current:   4.6 Amperes at Tcase of 50°C, Max
Peak Current:   25 Amperes, Max
Small Angle Step Response Time:   0.5ms, with balanced inertia matched load

Position Detector
Linearity:   99.9%, Minimum, over 40 degrees
Scale Drift:   50PPM/°C, Maximum
Zero Drift:   15 microradians/°C, Maximum
Repeatability, Short Term:    8 microradians
Output Signal, Common Mode:   585 microamperes with AGC voltage of 10VDC, +/-20%
Output Signal, Differential Mode:   14.5 µA/degree, at common mode current of 585 µA, +/-20%

详细介绍在：http://laser1001.blog.sohu.com/168205433.html

honey.cafe

CTI的确实很不错了。

chenfeng1205

zzhglaser

上海通用的振镜，慢，老板和员工，又傲又多疑？卖他个东西，恨不得让你报出祖宗三代，鄙视