转速

In the design of the road test, a reflectional infrared sensors is used to detect the black line on the road to judge the trolley's position; on trolley's speed controlling, the control system uses PWM technology to control the rotational speed of electric motors, and complete the speed real-time control to electric cars in d

在路面检测设计中，小车采用反射式红外传感器来检测其行驶路面上的黑线，以判断小车行驶的位置；在控制小车行驶速度上，系统利用PWM技术控制电动机的转速，通过程序完成对电动小汽车在不同路段的行驶速度实时控制；最后采用双电源供电，用以保证系统的运行更加稳定，可靠。

Carbon source,nitrogen source,cultivation temperature,the initial pH of the culture medium,the speed of shaker are involved in the experiments,and the evaluation of retting is based on the residual gum content in retted flax roving.Then flax roving treated under the optimal conditions is compared with untreated roving in ingredient analysis,scanning electron microscope and infrared spectrum analysis.The result shows that the microbe treat...

用筛选出的一种真菌对亚麻粗纱生物处理的工艺进行了探讨，以残胶率作为评定标准，研究了碳源、氮源、温度、pH值、摇床转速对亚麻粗纱生物处理效果的影响，并在最佳工艺下对亚麻粗纱再处理，对处理后的粗纱进行成分分析、扫描电镜、红外光谱等测试，结果表明：亚麻粗纱的生物处理是可行的。

The rotative speed of the wobbulator is controlled by adjusting the SPEED control.

摆频振荡器的转速由调节SPEED控制旋钮来控制。

ABSTRACT The rotative speed, torque and transmission error are the important kinematic and dynamic parameters of gear transmission.

转速、转矩、传动误差是齿轮传动重要的运动和动力学特性参数，这些参数与齿轮传动的动态性能密切相关。

The basic principle and mathematical pattern of digital rotative speed and torque test are expounded.

论述数字式转速、转矩、传动误差测试的基本原理和数学模型。

Pulse numeration method and pulse period method are introduced in the paper, the precision of these two methods and the relation of precision and rotative speed are analyzed, based on the analysis a compounding method that is suitable for the whole speed range with higher precision is advanced.

分析了脉冲计数法与脉冲周期法的原理与实现，测量精度与转速的关系，提出在不同的速度段采用不同的速度测量方法，以保证在整个调速范围内都可以得到精度较高的速度参数。

The criterion of stability and formula of the criti-cal rotative velocity obtained just is the same as that of the linear theory ofContensour-Magnus complately.

所得的稳定性判据及临界转速的表达式与Contensou-Magnus线性理论完全相同。

Compared with the induction generator and the synchronous generator, the doubly-fed generator shows few differences in structure, but the most outstanding characteristic is that it has no special requirement on rotative velocity to the axes.

从结构上看，双馈发电机与常见的感应发电机和同步发电机无太大的差别，但它却有一个引人注目的特点，即对轴上输入转速无任何特殊的要求。

It used frequency spectrum of analysis and low-pass filter to calculate the motor s rotative velocity from the vibration signals collected on site.

根据某大型电机在线监测诊断系统的具体情况，在开发在线振动监测系统的过程中综合应用频谱分析、低通滤波等方法，从实测振动信号中精确计算了主轴转速的大小。

The paper presents the working principle, performances and system structure of the monitoring system for the current and rotative velocity of stretch reducing mill at Baogang Steel Tube Plant.

针对宝钢钢管厂张力减径机在生产中的问题，研制了在线监测减径机电流和转速微机系统，本文介绍系统的工作原理、性能、结构及其在应用中取得的满意效果。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐