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压力传感器
    Temperature Insensitive Fiber Grating Stress Sensor
    对温度不敏感的光纤光栅压力传感器
    Experimental Research of the FBG Stress Sensor
    光纤光栅压力传感器实验研究
    First we establish the pressure distribution mathematic model in storage bin and then deduce the mathematic relation between level height and the uniform stress on the bottom of the bin and designed a resistance compressive stress sensor used for the special condition and put forward a resoivement according to its zero excursion existing in practical use.
    首先建立了料仓中的压力分布数学模型,推导出料位高度与仓底均布压力间的数学关系式,并据此设计了中温电阻应变式压力传感器,同时对它在实际应用中存在的零点漂移等问题提出了改进措施,提高了传感器性能,解决了上述特殊工况下动态物料检测的技术难题。
    Methods:The instrument uses a stress sensor worn on the doctor's right thumb to detect the epidural puncture and transforms it into digital signal by A/D after a program controlled amplification,and sends the digital signal into a single chip processor to undergo real time process,analysis and estimation. The instrument uses phonetic in structions and warns to correct the doctor's operation.
    方法:是利用戴在医生右手拇指上的压力传感器,将硬膜外穿刺与药物冲击的力度信息,经放大器放大和A/D转换变成数字量,送入单片微机进行实时处理与分析判断,采用语音提示与报警及时校正医生的操作。
    For the disperse impetus dynamoelectric locomotive groups (DIDLG), an experimental study on the dynamic stress-strain impacts of a roadbed-culvert transition section of Shan-Sui multiple tests section in Qin-Shen passenger transport special railway line was conducted by using the method of high capability multicenter parallel data collecting and analyzing system, BY-1 dynamic-static stress sensor, etc.
    运用高性能多通道并行数据采集分析系统,以及 BY-1 型动静态土压力传感器等测试手段,对动力分散型电力动车组在秦—沈客运专线山绥综合试验段某路涵过渡段的影响进行了试验研究。
    The main measuring method of tire contact pressure is using stress sensor.
    轮胎接地压力测试方法主要是压力传感器法.
    Each datum from this device is gained by single stress sensor which is buried into asphalt concrete that can simulate the mechan- ics characteristic of asphalt pavement.
    该测试仪是一种单点测试法,并将压力传感器置入沥青混凝土,很好地模拟了实际路面结构的受力特性.
    It is proved by the experiment that the responsibility,linearity and repeatability of the FBG stress sensor are good.
    实验表明,该光纤光栅压力传感器具有良好的灵敏性、线性和重复性,且有较快的响应速度。
 

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