| 1. | Bourdon tube pressure gauge for tractors and internal com bustion engines 拖拉机内燃机用弹簧管式压力表 |
| 2. | Bourdon tube temperature gauge for tractors and internal combustion engines 拖拉机内燃机用弹簧管式温度表 |
| 3. | Quartz - bourdon tube pressure gauge 石英弹簧管压力计 |
| 4. | Verification regulation of bourdon tube precision pressure gauge and vacuum gauge 弹簧管式精密压力表和真空表检定规程 |
| 5. | Bourdon pressure sensor 弹簧管压力传感器 |
| 6. | Verification regulation of bourdon tube pressure gauge pressure vacuum gauge and vacuum gauge for general use 弹簧管式一般压力表压力真空表和真空表检定规程 |
| 7. | A novel fluid pressure sensing system based on both the fbg and the bourdon tube is presented and demonstrated in this thesis 本文提出了一种基于fbg的弹簧管式流体压力传感方案。 |
| 8. | In addition , the center - reflecting wavelength shift of the fbg varies in good linearity with the applied pressure 98x106mps ” l )的引41 ff ; fbg的中心反射波长位移量与施加给直弹簧管的压力之间具有良好的线性关系。 |
| 9. | The laboratory is equipped with pressure balances , pressure controllers and precision quartz bourdon pressure gauges to provide pressure calibration services 压力本所设有活塞式压力计,压力控制仪及精密石英弹簧管式压力表,以提供压力校正服务。 |
| 10. | Thirdly , cbt ' s characteristic of the strain v . s . the applied pressure is studied , on the basis of this , a new scheme of the straight bourdon tube ( sbt ) is presented , a sbt is designed and fabricated , and then the strain - pressure characteristics of both the cbt and sbt are measured experimentally using a strain measuring technique , a comparison between the cbt ' s and sbt ' s strain characteristics is also made . finally , theoretical models of a fbg fluid pressure sensing system scheme based on the bourdon tube are developed , and a fbg - based fluid pressure sensing system using the transverse strain - pressure characteristic of the sbt is designed and set up 首先,详细介绍了fbg的基本光学传感特性,并测量了fbg的温度、应变特性;其次,研究了c型弹簧管的位移?压力特性,并利用ccd成像和计算机图像处理技术对其进行了非接触测量;再次,研究了c型弹簧管的应变?压力特性,在此基础上提出直弹簧管的设计方案,并制作了直弹簧管,采用应变测量技术对c型弹簧管和直弹簧管的应变?压力特性分别进行了测量,对两者的应变特性做了比较;最后,建立了基于弹簧管的fbg压力传感系统理论模型,设计完成了基于直弹簧管横向应变?压力特性的fbg流体压力传感系统。 |