选用薄壁圆筒作为谐振子，设计了短管谐振式密度传感器。
A short pipe densitometer is designed with the resonator of cylinder shell.
介绍了几种典型的液体密度传感器的基本结构、工作原理与应用特点。
The structure, operational principle of several typical liquid density sensors and their application features are described and analyzed.
这种机电一体化的流体密度传感器在井下应用时必须进行井场刻度以及温度和压力的校正。
Wellsite calibration, temperature and pressure correction must be made while the sensor is used in the borehole.
对谐振膜片进行了数学模型分析，并设计了基于数字闭环方法的谐振膜式密度传感器整体结构。
On basis of analyzing the mathematical models of resonant diaphragm, a integral structure of resonant diaphragm density sensor is designed based on the method of digital closed-loop.
在对圆筒谐振子的数学模型计算和有限元分析的基础上，设计了一种新型的谐振式液体密度传感器。
Based on the calculation and finite element analysis of resonator, a new kind of resonant liquid density meter is designed.
Impress由泡沫和压力传感器制成，利用触摸和压力密度来工作。
Made of foam and force sensors, Impress works with both touch and the intensity of pressure.
这种光谱调制传感器系统能够测量多种物理参数，如压强、温度、气体密度及多种化学成份。
The spectral modulation sensor system can detect and measure various physical parameters such as pressure, temperature, gas density, and various chemical species.
研制成功一种光纤烟气传感器，用于测量烟气的光学密度。
A kind of optical fiber smoke sensor which is used to measure the optical density of the smoke is introduced.
考虑传感器网络中节点非常稠密的特点，提出了一种将网格结构和密度控制相结合的路由算法以延长网络生存时间。
Considering the character of high density of nodes in sensor network, a new routing algorithm combines the structure of grid with density-controlling, is proposed.
液体密度实时测量系统由力传感器、浮子、数据采集器、电脑软件组成。
The system of liquid density measurement consists of force sensor, float, data gather, and software.
文中阐述了仪器的工作原理、密度控制器、微波传感器、数字显示单元硬件与软件，并给出实验结果。
The working principle of the apparatus, its density controller, its microwave transducer, and the hardware and software of its digital display unit are described in detail.
在测风塔上安装温度传感器的目的是为了计算风能密度，以及监测风场的环境温度。
This sensor is ideal for collecting temperature data for energy density calculations and monitoring air temperature at remote sites.
利用力敏传感器测量物体的密度，改进了传统的实验方法和仪器，实现了非电量电测，提高了实验的准确度和稳定性。
Using force sensor to measure density of objects can improve the accuracy and stability of the experiment as the result of bettering the traditional experimental methods and instruments.
这些应用包括压强、温度、气体密度和化学物质传感器等。
The applications are included in the pressure, temperature, gas density, and chemical species sensors.
它将温度、压力和流量传感器融为一体，通过对气体密度进行补偿，实现了精确的质量流量测量。
It integrated temperature and pressure sensor with vortex sensor, and it realized the accurate measurement of mass flow through the compensation of gas density.
介绍了巨磁电阻材料在高密度读出磁头、磁传感器、磁性随机存储器等领域的应用。
This paper introduced the giant magnetoresistance materials and their applications to magnetoresistance sensors, read head for high density magnetic recording and magnetic random access memory.
两次标准加入法的应用，确保了化学修饰电极作为传感器的分析测试方法的准确度及精密度。
Double standard addition method can cope with the problem through ensuring the accuracy and precision of the chemical modified electrode as a chemical sensor.
通过数学分析和仿真方法得知，在大规模高密度无线传感器网络中以数据为中心的路由协议能更有效地节约能量，延长网络的生命周期。
It can be shown that the data-centric routing protocol can save energy and prolong the lifetime of large-scaled and dense wireless sensor networks by simulation and mathematical approaches.
分析了兰姆波对液体密度变化的敏感情况，提出了一种基于兰姆波技术的测量液体密度微小变化声传感器。
The sensitivity of Lamb wave was analyzed and the working theory of a novel density sensor for liquid based on the Lamb wave technology was presented.
介绍利用高精度传感器制做电子蒸渗计，监测土壤水分及实际应用原理，测量精密度检验方法。
The method of measuring soil moisture using Lysimeter made of high accuracy sensor and the principle of application are introduced. The accuracy examination is also performed.
该校验仪通过步进电机对密度继电器压力进行调节，并通过模数转换电路采集压力传感器的输出，实现对密度继电器报警及闭锁压力的测量。
It can control the stepper motor to change the pressure of the relay, and the A/D circuit samples the signal of the pressure sensor and then acquires the lock or alarm value after processing.
由于传感器网络中节点密度大，网络中存在大量的冗余节点，全部节点同时工作会浪费大量能量。
Because of the high density of sensor nodes in WSN, there are quantities of redundant sensor nodes. All sensor nodes working simultaneously will lead to great waste of energy.
为了使传感器节点自定位精度能够适应于不同网络规模应用的需要，提出了多跳跃蒙特—卡罗节点定位方法，解决了锚节点密度低的应用限制。
In order to make node self-localization precision satisfy the need of varied network size, hybrid-hop Monte-Carlo method is proposed to solve the constraint of low anchor node density.
利用聚类算法延长高密度无线传感器网络的生命周期是一个研究热点。
Using clustering algorithm to prolong the highly dense sensor network lifetime is an important issue.
为了获得最佳的密度数据，传感器是否与井壁接触非常关键。
For optimum density measurements, detector contact with the wellbore is critical.
设计CMI-X-IS 图像传感器的应用电路，并将此应用电路置于微焦点X 射线机的照射下，对不同密度、不同尺寸的材料进行了静态实验。
The application circuit of CMI-X-IS is designed , and exposed in the micro-focus X-ray. Static experiments have been done for material of different densities and sizes.
设计CMI-X-IS 图像传感器的应用电路，并将此应用电路置于微焦点X 射线机的照射下，对不同密度、不同尺寸的材料进行了静态实验。
The application circuit of CMI-X-IS is designed , and exposed in the micro-focus X-ray. Static experiments have been done for material of different densities and sizes.
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