查询词典 sensor

This paper presents a low-voltage excitation with feedback method. By pre-excitations, the vibration frequency of the sensor can be got to used as the output of the driver. The feedback signal frequency is very close to the real frequency of the sensor, so the wire can reach resonance state quickly.

本文提出一种反馈式低压激振方法，降低拨弦激振电压对传感器进行预激振，将反馈的振动频率信号作为输出，对传感器进行复振，可以在很短时间内使振弦达到共振状态。

Currently, the power for sensor node is supplied by dry battery or fastener battery. So it is a challenging task to design energy-efficient data gathering protocols for wireless sensor networks.

由于目前的传感节点由干电池或纽扣电池来供电，因此设计能量有效的数据收集协议是无线传感网络研究中的一个挑战性课题。

This intelligent toy automobile is designed based on the SPCE061A as a micro-controller, gauging its position and posture through various sensors. Among them: making use of reflecting type infrared ray sensor, photo-electricity dynatron and Hall sensor to find the black line, the barriers, find the light and check the rotate speed.

摘 要：本智能玩具车是采用凌阳十六位单片机SPCE061A作为控制核心，对多通道多样化传感器综合控制：通过反射式红外线传感器检测路面黑线、光电三极管检测障碍物及光源、霍尔元件检测转速。

Besides, it analyzed the principle of a new underground displacement sensor which was based on a principle of electromagnetic induction, and combined experimental data to investigate how to choose the sensor s parameters.

同时对该系统中采用的一种基于电磁感应互感原理的新型地下位移传感器进行了原理分析，结合实验数据对传感器的参数选择进行了理论探讨。

The Space Environment Monitor consists of three instrument groups: 1 an energetic particle sensor package, 2 two magnetometer sensors, and 3 a solar x-ray sensor.

空间环境监测包括三个监控器： 1 ）一个高能粒子传感器封装， 2 ）两个磁力感应器， 3 ）太阳X射线传感器。

This paper describes a feasible calibration method, its basic principle for calibrating is: A certain function relationship is existed in equivalent inductance L of coil and the distance x between the object to be measured and the sensor coil, the measurements can be conducted with this function relationship by using frequency modulation. The calibrating system consists of measuring electric circuit, high stable voltage power supply, digital frequency meter, the conductor to be measured and the calibrated displacement sensor.

文中叙述了一种较为可行的标定方法，其标定的基本原理为：线圈的等效电感L和被测物体与传感器线圈的距离x存在一定的函数关系，利用这种函数关系用调频法进行测量，标定系统由测量电路、高稳定度稳压电源、数字频率计、被测导体及被校位移传感器组成。

This algorithm uses the estimative region to filter abnormal data and solves the problem that sensor networks are so easily attacked that the time synchronization is affected due to the high error rates of sensor networks.

该算法利用预测空间过滤异常时间同步数据，解决了因传感器网络数据错误率高且容易受到攻击而影响网络时间同步的难题。

The max distance that the sensor can detect is 8 m .the max error is 13 cm ,the sensor has many merits such as low cost, non-touching, fast detect, high precision, good reliability ,excellent adaptability ,and operated facilely .it has wide application prospect

该测距仪最大测量距离是8米，精确度是13cm，它具有成本低、非接触、速度快、精度高、可靠性强、适应性好，操作方便、有着广泛的应用前景。

The simulation results show that this method can detect sensor fault and recover sensor signal successfully.

仿真结果表明：SVM预测器有效地克服了神经网络的不足，能准确预测和跟踪传感器的输出信号，并在传感器发生故障后一定的时间段内能较精确的估计传感器的正常输出。

The fiber-optic sensor is a high sensitive sensor and signal detection technique is one of its key techniques.

光纤传感器是一种高灵敏度传感器，而信号检测技术是它的关键技术之一。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。