传感器

The floor of the vessel has a cavity (3) therein extending downwardly from the surface of the floor, and the lower end of the liquid reagent level sensor (2) and temperature sensor (1 and 11) are positioned in the cavity.

该器皿的底板具有设在其中并从底板的表面向下延伸的凹穴(3)，并且液体反应物液位传感器(2)和温度传感器(1，11)的下端位于该凹穴内。

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。

The measurement method includes adopting two vertically superposed position sensors and one capacitive sensor to measure the time for the liquid drop to pass through, adopting a frequency counter to count frequency and adopting microprocessor to calculate the liquid drop volume.

其方法是采用两个垂直重叠的位置传感器和一个电容传感器，测量液滴下落经过的时间，并由频率记数器对频率记数，而由微处理器计算出液滴体积。

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。

Electrochemical DNA biosensor is developed in recent years a new type of biosensor.

电化学DNA生物传感器是近年来发展起来的一种新型的生物传感器。

A measurement method of solid particles mean velocity based on the spatial filtering effect of the electrodynamic sensor was developed.

介绍了静电传感器的空间滤波特性，推导了颗粒流动速度与静电传感器输出信号频率特性之间的关系。

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。

Membrane composition of the electrode was also optimized by using the sequential level elimination method for orthogonal experimental design.

研制性能优异的药物传感器对于提高药品的质量，保证人民的身体健康，具有重要的意义，而好的试验设计是研制性能优良的药物传感器的关键。

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。

The main problems researched in the dissertation and achievements are as follows: The dissertation explains the science background and the theoretical and actual meaning of the task. The progress and the problems of the flow imaging technique are briefly explained. The advantages of electrical capacitance tomography are discussed. The paper discusses the formation and operating principle of ECT, and builds up the definite mathematical model by detail theoretical analyse, and establishes the Finite Element Model of the system by changing the finite boundary value problem of ECT into equivalence variation problem according to variation principle. On the basis of the FEM of the system, the paper builds the finite element model of the capacitance sensitivity field distribution and programs its finite element simulation software and proves the validity of the FEM of the ECT from different aspects. With the FEM and the qualitative analyse of the effect of each structural parameter of the capacitance transducer on its capability, this paper optimizes the structural parameters of the capacitance transducer, and obviously improves its capability. The compare of the simulated result with the static experimental result shows that the error of them is less than 0.9%.

其主要研究内容包括：阐述课题研究的学术背景及其理论与实际意义，概括总结出流动层析成像技术的发展现状和存在的问题，指出电容层析成像技术的优点；讨论电容层析成像系统的组成及工作原理，进行详尽的理论分析，以变分原理为基础，将ECT的有限元边值问题转换为等价的变分问题，从而建立系统的有限元模型；在系统有限元模型的基础上，建立敏感场的数学模型，编制有限元的仿真软件，并从不同角度证明电容层析成像系统有限元模型的正确性；利用有限元模型，定性地分析电容传感器各结构参数对其性能的影响，并对传感器结构参数进行优化设计，使其性能得到明显的改善。8电极ECT系统的仿真和静态实验结果的比较表明，它们之间的相对误差小于0。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。