发明名称 |
Laser based reflective beam cylinder sensor |
摘要 |
A hydraulic actuator is disclosed having a cylinder with a piston that is moved by hydraulic fluid. A light guide in one end of the cylinder directs a laser beam into the cylinder, and off the piston where the beam is reflected. The beam then exits the cylinder through a second light guide. A control unit measures the time of flight of the laser beam and calculates the piston position.
|
申请公布号 |
US2002083826(A1) |
申请公布日期 |
2002.07.04 |
申请号 |
US20000750866 |
申请日期 |
2000.12.28 |
申请人 |
ARSHAD MOHAMMAD J.;BERGER ALAN D.;CHAN DANLEY C.K. |
发明人 |
ARSHAD MOHAMMAD J.;BERGER ALAN D.;CHAN DANLEY C.K. |
分类号 |
F02B77/08;G01S7/481;G01S17/10;G01S17/88;(IPC1-7):F01B25/26 |
主分类号 |
F02B77/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|