Remote Dynamic Monitoring System in Groundwater Engineering

2014 ◽  
Vol 635-637 ◽  
pp. 705-710
Author(s):  
Yun Shi ◽  
Li Li Pang

In recent years, the exploitation and utilization of groundwater resources in the development of society plays a very important role. From the view of groundwater monitoring system, there are still a lot of problems, such as obsolete monitoring equipment, imperfect monitoring system. To solve these problems, by conducting studies of groundwater dynamic data acquisition and transfer of technology, research and development suited to China's national conditions groundwater monitoring series of instruments. Development of multi-level and multi-source remote management software base on network, build a set of groundwater dynamic data acquisition, storage, transmission, management, and remote control of the information service platform. It has been applied in a number of major projects for the construction and operation of the groundwater monitoring network in China to provide reliable monitoring equipment and management service software.

Author(s):  
Peter J. Stuttaford ◽  
Vince Martling ◽  
Andrew Green ◽  
Timothy C. Lieuwen

The design of modern gas turbine combustors continues to be driven by the demand for lower emissions of NOx and CO. Achieving reduced emissions on dry low emissions combustors necessitates the monitoring of associated, potentially destructive combustion noise. Power Systems Manufacturing (PSM) has developed a Dynamic Data Acquisition System for use in the noise performance optimization and health monitoring of low emissions combustors. Various noise probes and set-ups have been evaluated on test benches, combustion test rigs, and engines operating over their complete load range. The set-up and calibration of the combustion dynamic monitoring system is described here. An application of the dynamic data acquisition system is presented for the PSM combustor retrofit of the 85MW General Electric Frame MS7001EA machine, achieving 6ppm NOx, and 2ppm CO at base load and maintaining single digit emissions down to 50% load. The excellent condition of the combustion hardware following 8,000 hours of base load operation was indicative of operation in a low combustion noise environment. Combustion system noise monitoring ensures the lowest possible emissions, without compromising combustion hardware durability through excessive dynamic loading.


1992 ◽  
Vol 35 (5) ◽  
pp. 21-26
Author(s):  
Allan Piersol

The structural responses produced by the operation of pyrotechnic devices (commonly called pyroshocks) constitute one of the most difficult types of dynamic data to accurately measure and analyze. For this reason, a separate appendix devoted solely to pyrochock data acquisition and analysis problems has been included in a proposed military handbook on Guidelines for Dynamic Data Acquisition and Analysis. This paper summarizes the recommendations concerning pyroshock data given in the final draft of that proposed military handbook.


1990 ◽  
Vol 87 (S1) ◽  
pp. S135-S135
Author(s):  
Harry Himelblau ◽  
James H. Wise ◽  
Allan G. Piersol ◽  
Max R. Grundvig

Author(s):  
Roger G. Harker ◽  
Gary W. Handelin

There are many benefits available through on-line machinery condition monitoring during steady state operation. However, certain dynamic vibration data is only available during a machine’s start-up and shutdown. In the past, we have limited acquisition and reduction of this dynamic data to start-up commissioning, or while troubleshooting a specific problem. This paper explores new techniques available to automate start-up and shutdown dynamic data acquisition. It then describes an effective on-line machinery information system using these techniques.


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