| |
PLC变频器在热电站燃料准备系统中的应用 [2008-10-13] |
|
| 0 引言
河南省某热电站燃料准备系统是供热及自备电厂发电的一套大型燃料运输系统,由四级皮带运输机组成。老系统采用继电器-接触器控制,电气设备体积大、故障率高、维修量大、工作效率低。由于系统对四级皮带运输机的自动控制要求比较高,近期采用可编程控制器(PLC...
[阅读全文]
|
| |
 |
| |
公路交通管理智能化 “先知预判”保畅通 [2008-10-13] |
|
| 当城市基础设施公路交通网发展到与城市规模相适应时,实现公路交通的全面智能化管理,便可以大大地提高公路交通的通畅率。在大城市中,出现交通拥堵不外乎两个原因:一是同时同行行驶的车流量过大,二是发生意外交通事故。
如果让每位机动车司机都能在任一时间和任一...
[阅读全文]
|
| |
 |
| |
Emerson introduces Rosemount Analytical Model 1057 analyzer [2008-10-13] |
|
| October 13, 2008 -- To meet the need for multiple liquid measurements and lower costs per measurement loop required by industrial OEMs and other analytical customers, Emerson Process Management announced the Rosemount Analytical Model 1057 three-inpu...
[阅读全文]
|
| |
 |
| |
Phoenix Contact's cordsets meet Fieldbus Foundation specs [2008-10-13] |
|
| October 13, 2008 -- Phoenix Contact's 7/8-inch MINI SAC cordsets are the first connectorized cables to receive official compliance registration in accordance with the Fieldbus Foundation's FF-844 requirements for H1 Type A cable.
The H1 Cable Test ...
[阅读全文]
|
| |
 |
| |
ABB supplies relays to Tennessee Valley Authority [2008-10-13] |
|
| October 13, 2008 -- ABB signed a multi-year agreement with the Tennessee Valley Authority (TVA) worth $15 million to supply 670 Series protection and control relays over the next 10 years. The agreement comes as TVA upgrades and expands its massive m...
[阅读全文]
|
| |
 |
| |
一体化CASNUC 2100e数控系统在斜轴外圆磨床中的应用 [2008-10-13] |
|
| 斜轴磨床即可以磨外圆,也可以磨端面。使用于汽车、摩托车、压缩机等行业磨削带肩圆柱或齿轮轴的端面和外圆。
济南第四机床厂新开发一种斜轴功能的磨床,选用航天数控的2100eG数控系统,经联机调试,完全满足使用要求。
2100eG数控系统可用于直切外圆磨床、带斜轴...
[阅读全文]
|
| |
 |
| |
Opto 22 Technical Seminar Tour Highlights Company's Intelligent Remote I/O for Allen-Bradley® Logix Systems [2008-10-13] |
|
| Half-Day Seminars in Select Cities Demonstrate New Functionality
Temecula, CA - October 9, 2008 - Opto 22, developer and manufacturer of the award-winning SNAP PAC System(tm) family of programmable automation controllers, I/O, and accessories, wil...
[阅读全文]
|
| |
 |
| |
神舟七号拉动航天产业 机械行业商机无限 [2008-10-13] |
|
| 神七飞天成功,与航天相关的公司也与之共振。
“十一五规划”明确指出:要推进航天产业由试验应用型向业务服务型转变,发展通信、导航、遥感等卫星及其应用,形成空间、地面与终端产品制造、运营服务的航天产业链。
“神七”是众多关键科学技术的集大成者,可以带...
[阅读全文]
|
| |
 |
| |
国产新一代涡桨支线客机新舟600首飞成功 [2008-10-13] |
|
| 中国航空工业集团公司筹备组10日在北京宣布,由中航工业西安飞机工业有限责任公司自主设计和研制的国产新一代涡桨支线客机——新舟600飞机9日在西安阎良机场首飞成功,这标志着此款飞机正式转入适航验证试飞阶段。
新舟600在新舟60基础上进行了多项改进
中...
[阅读全文]
|
| |
 |
| |
陀螺仪走进爱普生拓优科梦新问世的无线电遥控直升机 [2008-10-13] |
|
| 爱普生拓优科梦日前在“CEATEC JAPAN 2008”上演示了配备有该公司角速度传感器(陀螺仪)的无线电遥控直升机(Radio Control Helicopter)飞行。无线电遥控直升机为田屋工程(TAYA Engineering)制造的“Innovator”。
田屋工程在综合控制单元上采用了爱普生拓...
[阅读全文]
|
| |
 |
| 共 261668 条 计 26167 页 当前显示第 177361-177370 条
9
7
3
17731
17732
17733
17734
17735
17736
17737
17738
17739
17740
4
8
:
|
| |