研究了转子位移无传感器检测的两种方法，即小信号注入测试法和差动变压器测试法。
Two methods, which are called as a small test-signal injection and the differential transformer, are studied in order to detect the rotor displacement without sensor.
在启动时，没有反电动势，在无传感器模式下电机的位置不能检测到。
At startup, there is no back-EMF due to the stationary motor, and the motor position cannot be detected in sensorless mode.
无刷直流电机电枢反应造成反电势法无传感器控制中的转子位置检测误差。
The armature-reaction in a sensorless brushless DC(SLBLDC) motor causes detection error of rotor position and consequently leads to advanced or lagged commutation.
使用金硅势垒探测器及热电式致冷器构成传感器，并利用无模型控制器进行控制，实现气体露点的在线检测。
The sensor is composed of pyroelectric refrigerator and semiconductor detector, and controlled by a operator without model, In this way the air dew-point can be measured on line.
混合式步进电动机伺服系统转子的位置检测，可以用传统的外配位置传感器或基于理论算法的无位置传感器方案，但是存在许多问题。
Position detection of rotor in hybrid stepping motor servo system can use traditional outside position sensor or sensorless scheme based on theoretical algorism, but there are many problems produced.
主要研究一种无传感器磁轴承转子位置自检测的方法，该方法不需要专用的位移传感器。
A method of automatically detecting rotor position of self-sensing magnetic bearing is studied, in this method, no special displacement sensors are used.
针对低检测概率下的无源定位问题，提出一种基于滑窗批处理的多传感器融合跟踪算法。
For the problem of passive location under low detection probability, a multi-sensor fusion tracking algorithm based on sliding window batch technique is presented.
介绍了一种基于高灵敏微压脉搏传感器的人体无创心血管功能智能检测技术及仪器研制。
An apparatus based on a high sensitive sensor which detects cardiovascular functions is introduced in this paper.
该方法不需要速度检测元件，从而为无速度传感器矢量控制系统的电气参数测试提供了一种有效、可行的方案。
Because of requiring no speed detecting devices, this method is effective, simple and practical conception for the electrical parameter measurement of sensorless vector control system.
介绍了无刷直流电机无位置传感器转子位置检测的一种新方法。
Describes a novel method of detecting for rotor flux position of the brushless DC motor (BLDCM).
介绍了一种新的无位置传感器无刷直流电动机的转子位置检测方法-速度无关位置函数法。
A novel method of rotor position detect for sensorless brushless DC motor was introduced, that was the method of speed-independent position function.
介绍了无刷直流电机无位置传感器转子位置检测的一种新方法。
This paper describes a novel method of detecting for rotor flux position of the brushless DC motor (BLDCM).
然后分析研究无位置传感器无刷直流电机控制系统的几项关键技术：转子位置检测、启动和PWM控制技术等。
And then it studies a number of key technologies around the sensor less brushless DC motor control system: Rotor position detection, motor starting and the PWM control technology.
针对无刷直流电机在静止和低速状态下检测转子位置困难，提出了无刷直流电机采用无位置传感器控制策略时转子位置检测的一种新方法。
A novel method for detecting the rotor position of Senseless Brushless DC Motor was presented in view of the deficiency in rotor position detecting at standstill or low-speed.
介绍一种基于32位ARM嵌入式微处理器LPC 2290和MEMS微加速度传感器的一种便携、无创的胎儿心率检测仪。
This paper introduces a new type of portable and no invasive fetal heart rate monitor which based on 32-bit ARM embedded microprocessor LPC2290 and MEMS acceleration transducer.
本文采用反电动法控制永磁直流无刷电机，是通过检测反电动势过零点获得转子位置实现无传感器控制。
Using Back-EMF method to control BLDCM, it can realize sensor-free control method by detecting the zero point of EMF in this paper.
提出了一种无创式出血灶检测与定位的电子微系统方案，研制了一种血红蛋白传感器，并在离体状态下对这种传感器进行了原理性实验。
A non-invasive method based on the electronic micro-system is presented for solving this question. And the hemoglobin sensor is developed and examined by the experiments.
方波电流驱动的BLDC电机无位置传感器控制检测转子位置的最重要方法是反电动势检测法。
Detecting back EMF is one of the most important methods for the detection of rotor position in square wave current drive BLDCM sensorless control.
介绍变频空调采用无传感器无刷直流电机作为压缩机的优越性，反电势检测的基本原理以及起动方法。
This paper analyzes the advantage of using sensor2 less brushless DC motor in fuzzy conversing air - condition , the back EMF method and the start technique.
本文分析了目前国内外文献介绍的几种典型的无位置传感器的转子位置检测方法，并对它们的基本原理、实现途径、改进策略、适用场合做了详细的说明。
In this paper, several typical methods of sensorless position for detecting the rotor position introduced in domestic and foreign documents are analyzed, and the basic principles...
本文分析了目前国内外文献介绍的几种典型的无位置传感器的转子位置检测方法，并对它们的基本原理、实现途径、改进策略、适用场合做了详细的说明。
In this paper, several typical methods of sensorless position for detecting the rotor position introduced in domestic and foreign documents are analyzed, and the basic principles...
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