VR传感器也被称为无源传感器或电磁传感器，不需要外接电源。
VR sensors, also known as passive or electromagnetic sensors, do not require an external supply.
该装置采用数字电路控制，地面传感器为简单的无源传感器，机车控制电路改动甚少。
The system is controlled by digital circuits and a simple passive sensor to be used on the ground. The control circuit for the locomotive doesn't need much to be modified.
针对光波导电场传感器无源工作的特点，分析了电场传感器工作点对传感灵敏度、线性动态范围的影响。
For passive working electric field sensors, the effects of bias point on the performances including sensitivity and linear dynamic range are analyzed.
对各子源传感器给出的有、无目标的信度，我们利用D-S理论进行融合。
We use some concepts of D-S theory to fusion each sensor's decision.
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.
传感器是目前最有发展前途、最具代表性的光纤无源器件之一。
Fiber Bragg Grating (FBG) is one of the most potential and typical optical passive components at present.
声表面波传感器可以实现无源化并进行无线测量，从而可以应用于转轴的扭矩测量。
SAW sensors require no power supply and can be used for wireless measurement, so SAW sensors can be placed on rotating shaft to measure the torque.
光纤传感器是无源器件，不受电磁辐射干扰，具有好的温度性能，提供高的测量数据率。
Optical fibre sensors are passive and free from electromagnetic radiation. They can provide high data rates and have high temperature capability.
研究设计了一种SAW无源温度传感器以及相应的遥测系统，指出了其中的几项关键技术，计算了该传感器的灵敏度。
An SAW temperature sensor has been designed as well as its remote sensing system. Some critical techniques and the calculation results of the sensitivity of the sensor are also given.
使用玻璃基离子交换工艺制作的大半径无源环谐振器可作为惯性旋转传感器、波长传感器、温度传感器、声波传感器和光学陀螺等，具有重要的应用价值。
The passive rings on glass with big radius fabricated by ion exchange can be used as inertial sensors, wavelength sensors, temperature sensors, sound-wave sensors, optical gyroscope and so on.
该传感阵列系统利用不同延迟线构成编码器不仅有谐振式无源无线传感器距离远的优点，而且，还具有延迟型大规模编码的优势。
Because using the delay line to construct coder, the sensor array can be employed not only in the long distance, but also in the large-scale. Thi...
该传感阵列系统利用不同延迟线构成编码器不仅有谐振式无源无线传感器距离远的优点，而且，还具有延迟型大规模编码的优势。
Because using the delay line to construct coder, the sensor array can be employed not only in the long distance, but also in the large-scale. Thi...
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