R-20型 RVDT 航空航天 角位移传感器

RVDT采用非接触式设计，与同步分析器和电位计等其它传统的角位移测量仪相比，有效地提高了长期可靠性。它的设计，在不使用诸如滑环、叶片、接触式游标，电刷等易磨损的活动部件的前提下仍可保证测量精度。 该传感器采用特殊形状的转子和线绕线圈，模拟线性可变差动传感器(LVDT)的线性位移，有较高的可靠性和性能。转子轴的旋转运动产生线性输出信号，围绕出厂预置的零位移动±60°(总共120°)。此输出信号的相位指示离开零位的位移方向 。转子的非接触式电磁耦合使产品具有无限的分辨率，即测量精度可达到零点几度。

R20系列RVDT是交流角位移传感器。3~12 Vrms的交流励磁会产生交流输出电压，随转轴的角位移变化而发生线性变化 。产品为交流下作方式，不需要使用集成信号调理电子组件， 从而为用户提供了极广的工作温度范围(-55℃到150℃)。 产品出厂校准为在±30、±35、±40度工作范围，

R20A系列RVDT的非线性度低于满量程的±1%， 量程可达到±60°，但线性度较差。 R20系列RVDT角位移传感器对于航空设备、机加工设备、阀位显示和旋转制动器反馈等应用，性能表现，具有长期可靠性。

SOLUTIONS TO IMPROVE AIRCRAFT EFFICIENCY

The legacy of ABEK SENSORS aviation innovation includes our advanced technology in position sensors. From the cockpit to control surface, our rotary sensors provide multiple aviation solutions. Continued improvement for performance in increasingly harsh environments keeps us at the forefront of driving aircraft efficiency.

SENSING TECHNOLOGIES INCLUDE:

• Inductive (RVDT, Resolver)

Common applications include fly-by-wire flight control systems, engine control systems and vehicle health management. Our products are usually developed from a custom set of requirements, however some key features include:

• Up to four redundant channels
• In-line or cluster configurations
• High speed shaft sealing available
• Gearhead allows absolute measurement over >300 input shaft revolutions
• Accuracy better than 0.25% full scale deflection
• Lane to lane tracking better than 0.5% full scale deflection

APPLICATIONS:

• High lift system position and asymmetry sensing
• Environmental control system valve position
• Missile fin position