仪器地

In addition, Single Pass Orbit Improvement can reflect the abnormal jumpiness of observations, which is favorable for estimating the precisi...

另外该方法能够反映观测资料的不正常的跳动，对准确地评估观测仪器的性能，进一步改进观测仪器是有益处的。

As the mine accidents happen frequently in recent years, the detecting technology for microseism becomes much more important. However, there is no advanced microseism detecting system at home. It's pretty important for microseisms denoising and Reversion. A wavelet denoising method is presented here to process microseism signal, and the microseism record can get high signal to noise ratio. Meanwhile based on the software of LabVIEW, s design of real-time detecting system for microseism based on virtual instrument is presented. The advantage of the virtual instrument was sufficiently exerted to achieve the real-time detecting and analyzing of the microseism.

以往基于DSP或其他单片机的微震系统，其资源的有限性很难达到理想的采集效果，同时也难以完成先进算法的实现，而对微震信号的去噪与还原在监测系统中起着很重要的作用；在深入分析小波变换的信号去噪方法基础上，对微震信号进行了处理，得到高信噪比的微震记录，实现了对噪声的有效抑止；同时在LabVIEW平台软件设计的基础上，实现了一种基于虚拟仪器微震实时检测的设计方案，充分发挥了虚拟仪器的优势，结果表明基于LabVIEW的微震系统能很好地完成实时监测及其分析。

We developed two kinds of new products for low-power and high-resolution mine shallow seismograph, mine geology detector and mine tunnel predictor. By field experimental verification, they can solve effectively the detecting problem of small geological structure and coal seam thickness around underground coal mine tunnel. Their performance and function of reached or exceeded the level of domestic similar products, and their power consumption (≤4W) is lower than the advanced high-resolution shallow seismographs at home and abroad.

开发出两款低功耗高分辨率矿井浅层地震仪产品——矿井地质探测仪和矿井巷道超前探测仪，通过现场试验验证，其可有效地解决煤矿井下巷道四周浅层地质小构造勘探和煤层厚度探测问题，仪器性能和功能达到或超过国内同类产品水平，且仪器的功耗(≤4W)小于国内外先进的高分辨率浅层地震仪产品

The maximum permissible error is the unique basis to judge the qualification of tilt instrument.

在地震行业标准《地震观测仪器进网技术要求地壳形变观测仪》的编制研究中，第一次提出以"最大允许误差"作为地形变观测仪器的主要技术指标，也是判别倾斜仪是否合格的惟一依据。

According to characteristics of remote maintenance, hardware structures and software designs of virtual instrumentation are discussed in the paper.

针对远程维护的特点，本文研究了虚拟仪器的硬件构成、软件设计以及利用网络技术组建远程虚拟仪器系统，为远程监控和远程故障诊断提供形象生动的现场资源，更好地实现设备的远程维护。

There are people believe that the ancient Chinese form was originally a concept-day geodetic instruments, Spring and Autumn Period there is a instrument for the observation of astronomical tables, people standing tree as a pole in order to determine the length of the sun's shadow position, solar terms, and thus to measure the star, observable sidereal year cycle, the ancient pre-construction in the construction, but also as a method to take positive positioning.

还有人认为，古代的中国形式的概念最初是天大地测量仪器，春秋有一个表的天文观测仪器，人们站在一个极树，以便确定太阳的阴影位置长度，节气，从而测量恒星，观测恒星年周期，古代前在建筑施工，但作为一种方法也采取积极的定位。

According to the feature of involute micron gear , a measuring system of involute straight spur gear is designed .

小模数齿轮广泛地应用在精密光学仪器、航空及无线电仪表中，其精度直接影响到仪器仪表的工作性能和使用寿命。

The subminiature, intelligentized, personal and basing on network are the necessary trends of medical model transforming, but it is more important to develop the entirely new concept of medical instrumentation, which can make it truly enter families and community smoothly.

医学仪器的微型化、智能化、个性化和网络化是医疗模式改变所带来的必然趋势，然而更重要的是要发展全新概念的医学仪器，使它们能真正"无缝"地融入家庭和社区环境中。

The article research the relative project about visibility, it discussed the principle, it introduced the new measuring method opposite the foreword scattering visibility meter and design the transmit and incept devices of foreword scattering visibility for keystone, it is advanced the characteristics of the light source which is should be possess , it show the advantage of the LED used to the light source and selected PIN LED which matching with it, the article is discussed the optics system and design the reasonable object lens structure, measuring and controlling system and the relative design idea ,design method and the accuracy analyzing etc.

本文研究了能见度测量仪器的有关问题，系统地论述了能见度测量仪器的理论，然后以前向散射式能见度仪为研究对象，论述一种新的测量方法，提出了理想光源应具备的特点，说明了采用LED 发光二极管做光源的优越性，并选择了合适的PIN 光电二极管与之匹配，对光学系统作了全面讨论，设计出合理的物镜结构、机械结构、并详细论述了与之有关的设计思想、设计方法和精度分析等问题。

The results show that advanced detection apparatus DTC-150 can detect geologic formation in front of the mine excavation 100 m away, and can more accurately detect faults, rock fissures, rock broken cinctures and water-rich situation, and the collection velocity can be used to classify the wall rock.Key words: seismic exploration; mine; advanced detection; long distance; multi-wave and multi-component

研究结果表明：采用DTC-150井下超前探测仪器能够较准确地探测到掘进面前方100 m内断层、围岩裂隙、岩石破碎带以及富水情况，据由该仪器获得的波速对围岩进行分类。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。