Using precision grades of the transmission parts as main variables , the authors put forward a set of method about optimal design of dkj electric actuators based on transmission error and backlash analysis 摘要该文针对dkj型电动执行器提出一种以传动零件精度等级为主要设计变量的基于传动误差和回差分析的优化方法。
On the base of studying structure format of elastic unit and by introducing the principle of resistance strain sensor , principle of mechanism and mechanics of materials , highly precise torque sensor is developed and manufactured . this sensor is small in volume and has simple manufacture procedure 利用电阻应变式传感器原理、机械原理及材料力学知识，在对传感器弹性元件结构形式研究的基础上，研制出在小量程范围内加工工艺简单、体积小的高精度等级扭矩传感器。
According to the features of precision , efficiency , inspection dimension and accuracy varying great range , designed closed - loop control system composition of servomechanism and grating to assure system ’ s precision , smooth , efficiency , and to realize the great dimension range measurement ; designed image capture system composition of ccd , automatic variable power lens and self - adaptive lighting , to realize integration of large inspection precision range ; designed electric control and software system to make the inspection convenience and fast . finally , developed the prototype instrument 针对微电子产品视觉检测的精密、高效、检测精度和测量范围变换大的特点,设计了伺服驱动、精密光栅采集组成闭环控制系统以保证运动精密、平稳、高效,和大的尺寸测量范围;设计了由ccd摄像机、大范围自动变倍镜头和自适应光源组成的图像采集系统,集不同精度等级的检测于一体;设计了电气控制和软件系统使检测方便快捷。
Steam turbine thermal performance test is one of the most important parts to evaluate the economic performance of a power plant unit . since the structures of the steam turbine is complex and variational , the procedure of steam turbine thermal performance test is also much complex . steam turbine thermal performance test consists of data collection and performance calculation , and the two procedures must be dealt with under a standard rule 汽轮机热力性能试验主要包括两个过程,数据采集和性能计算,为了得到真实可靠的分析结果,这两方面的工作必须根据试验规程进行, ansi / asmeptc6汽轮机性能试验规程是目前国际上最高精度等级的热耗率试验规程,在我国被广泛用在新投产的大型汽轮机机组或老机组改造的经济性能评价之中。
Those products are widely applied to power , water conservancy , mining , metallurgy , steel , rolling , coal , petroleum , chemical engineering and heavy machinery industries , cover allover the country , take the place of those imported , are exported as matching suites to countries in western europe , southeast asia and africa and have won the reliance and favorable comments from clients 生产范围内径从50mm到外径3000mm ，精度等级从p0 - p5级别。产品广泛用于电力水利矿山冶金轧钢煤碳石油化工重型机械等行业。产品覆盖全国各地，替代进口，并配套出口西欧东南亚非洲等国家，深受用户的依赖和好评。
