VDT采用非接觸式設(shè)計，與同步分析器和電位計等其它傳統(tǒng)的角位移測量儀相比，有效地提高了長期可靠性。它的設(shè)計，在不使用諸如滑環(huán)、葉片、接觸式游標，電刷等易磨損的活動部件的前提下仍可保證測量精度。 該傳感器采用特殊形狀的轉(zhuǎn)子和線繞線圈，模擬線性可變差動傳感器(LVDT)的線性位移，有較高的可靠性和性能。轉(zhuǎn)子軸的旋轉(zhuǎn)運動產(chǎn)生線性輸出信號，圍繞出廠預(yù)置的零位移動±60°(共120°)。此輸出信號的相位指示離開零位的位移方向 。轉(zhuǎn)子的非接觸式電磁耦合使產(chǎn)品具有無限的分辨率，即*測量精度可達到零點幾度。

  R20系列RVDT是交流角位移傳感器。3~12 Vrms的交流勵磁會產(chǎn)生交流輸出電壓，隨轉(zhuǎn)軸的角位移變化而發(fā)生線性變化 。產(chǎn)品為交流下作方式，不需要使用集成信號調(diào)理電子組件， 從而為用戶提供了極廣的工作溫度范圍(-55℃到150℃)。 產(chǎn)品出廠校準為在±30、±35、±40度工作范圍，

R20A系列RVDT的非線性度低于滿量程的±1%， *量程*可達到±60°，但線性度較差。 R20系列RVDT角位移傳感器對于航空設(shè)備、機加工設(shè)備、閥位顯示和旋轉(zhuǎn)制動器反饋等應(yīng)用，性能表現(xiàn)*，具有長期可靠性。

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