降转时间试验台的改进方案设计  

An improved scheme design of test bed for rotor speed decelerating time

作　　者：彭军[1] 黄启来[2] 皮之军[2] 杨欣毅[3] 王光辉[4] 

机构地区：[1]海军航空工程学院新装备培训中心,山东烟台264001 [2]海军航空工程学院训练部教保处,山东烟台264001 [3]海军航空工程学院飞行器工程系,山东烟台264001 [4]海军航空工程学院指挥系,山东烟台264001

出　　处：《实验技术与管理》2011年第8期50-52,共3页Experimental Technology and Management

摘　　要：降转时间试验台是对小型涡喷发动机进行维护的重要设备,用于测量发动机的降转时间。老式的降转台系统复杂、造价成本高。为此提出了一种新的降转时间试验台的设计方案。该方案采用转速测量模块代替老式试验台电路模拟部分,采用带报警输出的新式计时器替代老式降转时间试验台电路的数字电路部分。试验证明,该设计能够替代老式试验台完成降转时间的测定,满足精度要求的同时,降低了设备的成本。The test bed of rotor speed decelerating time is an important device which is needed in the maintenance of small turbo jet engine. It is used to measure the rotor speed decelerating time of the engine. The old test bed is very complicated with a high cost. Therefore a new design scheme of the test bed is introduced. The new one adopts rotor speed recording instrument to replace the old analog circuit and new calculagraph with relay output to replace the old digital circuit. Test results prove that the new designed test bed can replace the old one to measure rotor speed decelerating time and reduce the cost.

关 键 词：降转时间 试验台 传感器 频率计 计时器 

分 类 号：V235.113.3[航空宇航科学与技术—航空宇航推进理论与工程]