资源描述:
《讲述水银气压表排除法检修原理》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、http://www.mtjxcl.cnhttp://www.shuaqibibu.comhttp://www.talwhw.cnhttp://www.cntcb.cn讲述水银气压表排除法检修原理水银气压表是气象台站用来观测气压的主要仪器,有动槽式和定槽式2种,是根据水银柱的重量和大气压力相平衡的原理制成的,在使用过程中要经常进行维护和简单的检修。Amercurialbarometeristhemaininstrumentmeteorologicalstationstoobservethepressure,dynamicslotandafixedgroovetype2kin
2、ds,ismadeaccordingtotheprincipleofthemercurycolumnweightandatmosphericpressureandphaseequilibrium,intheuseoftheprocessshouldregularlycarryoutmaintenanceandsimplemaintenance. 1水银气压表的维护The1mercurybarometermaintenance要经常保持气压表的清洁。槽部及水银柱的水银应干净,不得有氧化层,槽部应有足够的水银量。动槽式水银气压表槽内水银面产生氧化物时,应及时清除。对有过滤板装
3、置的气压表,可以慢慢旋松槽底的调整螺旋,使水银面缓缓下降到“过滤板”http://www.mtjxcl.cnhttp://www.shuaqibibu.comhttp://www.talwhw.cnhttp://www.cntcb.cn之下,动作要轻缓,使水银面刚好流入板下为止,切忌再向下降,以免内管逸入空气;然后逐渐旋紧槽底的调整螺旋,使水银面升至象牙针附近。用此方法重复几次,直到水银面清洁为止。无“过滤板”装置的气压表,若水银面严重氧化,应报请上级业务主管部门处理。定槽式水银气压表的水银是定量的,要特别防止漏失水银。Keepthetablecleanair.Groove
4、andthemercurymercuryshouldbeclean,nooxidationlayer,slotshouldhavesufficientamountofmercury.Themercurybarometergroovesurfaceofmercuryoxide,shouldbepromptlyremoved.Thefilterdeviceofthebarometer,canslowlyunscrewbottomadjustmentscrew,sothatthesurfaceofmercuryslowlydowntothe"filter",actionshoul
5、dbegentle,sothatthesurfaceofmercuryjustintotheboardsofar,avoidtocomedowntotheinnertube,escapeintotheair;thengraduallytightenadjustmentscrewgroovethesurfaceofmercury,whichrosetoneartheivoryneedle.Withthismethod,repeatedseveraltimes,untilthemercurysurfaceclean.No"filter"meansthesurfaceofmerc
6、urybarometer,ifsevereoxidation,shouldbehttp://www.mtjxcl.cnhttp://www.shuaqibibu.comhttp://www.talwhw.cnhttp://www.cntcb.cnreportedtothesuperiorcompetentdepartment.Fixedgroovetypemercurybarometermercuryisquantitative,topreventtheleakageofmercury.使用动槽式水银气压表测定气压时,每次读完数,必须降低水银面,避免水银磨损象牙针尖,造成刻
7、度的零点位置升高,使气压示值产生误差。标尺要经常保持干燥清洁。若标尺生锈、刻度不清,可涂上一些擦铜油(或者钟表油),用羟丙基甲基纤维素软布将其擦亮,然后用黑墨涂在刻度上,再擦去刻度线外的余墨。Theuseofdynamicslottypemercurybarometermeasuringpressure,everytimeIreadthem,mustreducethemercurysurface,avoidmercurywearIvorypoint,zeropositiontocausethescaleincrea