產品詳細(xi)介紹

  檢漏(lou)(lou)儀ST—3000是用于尋(xun)找并(bing)確定供水管(guan)道漏(lou)(lou)點位置(zhi)的(de)儀器，也可用于其它壓力管(guan)道系(xi)統的(de)檢漏(lou)(lou)，當管(guan)道內(nei)流體在(zai)(zai)(zai)壓力下逸出時(shi)，產(chan)生(sheng)噪(zao)音能(neng)沿管(guan)道傳播，或沿埋層介質(zhi)傳播到地面。檢漏(lou)(lou)儀JT—3000能(neng)沿管(guan)線或其路(lu)面上方(fang)確定漏(lou)(lou)點位置(zhi)。ST—3000是采(cai)用低(di)功耗微(wei)處(chu)理(li)器和高級濾波器對(dui)噪(zao)聲(sheng)進(jin)行數(shu)(shu)字(zi)化處(chu)理(li)的(de)檢漏(lou)(lou)儀器，它采(cai)用專(zhuan)門設計的(de)寬帶(dai)高靈敏度振(zhen)動傳感(gan)器（拾振(zhen)器），將(jiang)地面（或管(guan)道口）的(de)噪(zao)聲(sheng)檢拾并(bing)轉(zhuan)換(huan)為電信號，經過(guo)相應(ying)放(fang)大(da)并(bing)作(zuo)數(shu)(shu)字(zi)化濾波處(chu)理(li)，以(yi)兩種顯(xian)(xian)(xian)(xian)示(shi)(shi)圖(tu)面在(zai)(zai)(zai)液晶顯(xian)(xian)(xian)(xian)示(shi)(shi)屏上顯(xian)(xian)(xian)(xian)示(shi)(shi)，注(zhu)意(yi)到漏(lou)(lou)水噪(zao)聲(sheng)為連續信號，在(zai)(zai)(zai)數(shu)(shu)字(zi)化處(chu)理(li)中用對(dui)連續噪(zao)聲(sheng)的(de)6個頻段輪翻檢測的(de)方(fang)法，產(chan)生(sheng)6個顯(xian)(xian)(xian)(xian)示(shi)(shi)直方(fang)柱，而對(dui)突發沖擊干(gan)擾進(jin)行抑制（不顯(xian)(xian)(xian)(xian)示(shi)(shi)）。又注(zhu)意(yi)到外(wai)界干(gan)擾的(de)可能(neng)疊加，而在(zai)(zai)(zai)取值相應(ying)時(shi)間內(nei)采(cai)用zui小值取值法，并(bing)給出相應(ying)數(shu)(shu)值顯(xian)(xian)(xian)(xian)示(shi)(shi)，以(yi)便(bian)zui大(da)限度的(de)抑制外(wai)界干(gan)擾。

 

 1.2  儀器結構(gou)

檢漏(lou)儀(yi)ST—3000裝在一個PVC壓注型(xing)鋁合(he)(he)金箱(xiang)內，儀(yi)器機(ji)箱(xiang)長×寬(kuan)×高(gao)為230×95×108，機(ji)箱(xiang)由上下(xia)兩部分合(he)(he)成，上部為裝載電路的主箱(xiang)體，高(gao)80mm，下部為裝載電(dian)池的底蓋，高28mm，合成后總高度為108mm，上半(ban)體由機箱正(zheng)方面看，左(zuo)半(ban)部為(wei)液晶顯(xian)示(shi)屏幕(mu)，屏幕(mu)窗口下有保護玻璃，右半(ban)部為(wei)操作面板。

操作面板(ban)右(you)側(ce)有一寬(kuan)約3.6cm斜(xie)槽。斜(xie)面(mian)上(shang)有拾振器(qi)插座和耳機(ji)(ji)插孔(kong)，在(zai)(zai)斜(xie)槽一(yi)(yi)側的箱(xiang)體上(shang)下蓋(gai)間有一(yi)(yi)電(dian)(dian)(dian)(dian)池充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)座孔(kong)。機(ji)(ji)箱(xiang)底(di)(di)蓋(gai)與上(shang)部用(yong)螺絲擰緊為(wei)一(yi)(yi)體，底(di)(di)蓋(gai)上(shang)有裝(zhuang)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池組(zu)(zu)(zu)的盒，電(dian)(dian)(dian)(dian)池組(zu)(zu)(zu)放(fang)(fang)入此盒內(nei)，并以插件與機(ji)(ji)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)路(lu)相連(lian)(lian)，電(dian)(dian)(dian)(dian)池盒有一(yi)(yi)帶暗扣的蓋(gai)板，取出(chu)或(huo)放(fang)(fang)入電(dian)(dian)(dian)(dian)池組(zu)(zu)(zu)時(shi)，從暗扣處上(shang)扳(ban)即可(ke)(ke)打(da)開(kai)蓋(gai)板，十分(fen)方便。電(dian)(dian)(dian)(dian)池組(zu)(zu)(zu)為(wei)6節(jie)鎳氫電(dian)(dian)(dian)(dian)池組(zu)(zu)(zu)裝(zhuang)，在(zai)(zai)節(jie)約(yue)電(dian)(dian)(dian)(dian)源的情況(kuang)下，充(chong)(chong)(chong)(chong)(chong)滿一(yi)(yi)次電(dian)(dian)(dian)(dian)（1900MAH）可(ke)(ke)使用(yong)35小時(shi)以上(shang)，在(zai)(zai)使用(yong)背景燈連(lian)(lian)續(xu)工作(zuo)亦(yi)不少(shao)于(yu)10小時(shi)，為(wei)用(yong)戶有可(ke)(ke)能急用(yong)儀器(qi)而(er)來不及充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，隨機(ji)(ji)另配一(yi)(yi)組(zu)(zu)(zu)相同充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)池。充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)可(ke)(ke)用(yong)專配充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)器(qi)在(zai)(zai)機(ji)(ji)箱(xiang)內(nei)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)，也可(ke)(ke)以在(zai)(zai)機(ji)(ji)外(wai)對電(dian)(dian)(dian)(dian)池組(zu)(zu)(zu)單獨(du)充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)。充(chong)(chong)(chong)(chong)(chong)電(dian)(dian)(dian)(dian)以電(dian)(dian)(dian)(dian)池無(wu)存電(dian)(dian)(dian)(dian)情況(kuang)下連(lian)(lian)續(xu)充(chong)(chong)(chong)(chong)(chong)10小時(shi)為(wei)宜。

    1.3  技術參數(shu)

    a、放大(da)倍數    100dB內(nei)可調

b、頻率分析(xi)寬度  70~4000HZ范圍(wei)，近5個(ge)倍頻程，三種帶(dai)寬。

c、頻率分檔   1：100HZ

（中心頻率）2：200HZ

3：400HZ

4：800HZ

5：1500HZ

6：3000HZ

d、帶(dai)寬       1：窄(zhai)帶(dai)：標示(shi)符號

2：中寬帶：標(biao)示符號

3：寬(kuan)帶：標示(shi)符號

e、兩種模式顯示：

1）橫(heng)向單條柱狀顯示(shi)

2）縱向6條柱狀顯示(shi)

f、數值顯示(shi)：在顯示(shi)條上(shang)對應，取樣值作zui小值以0~100間相對量值顯示(shi)。

g、屏幕70×40mm LCD顯(xian)示窗

h、LCD背景燈有通(tong)斷控制(zhi)并在zui后(hou)一(yi)次操作(zuo)3分后(hou)自動關(guan)閉。

i、供電方式：6×1.2V可(ke)充電(dian)電(dian)池一組(zu)。

j、電池充滿后

供電工(gong)作時(shi)間≥35小(xiao)時(shi)（無背景(jing)燈）

k、存儲(chu)6次測(ce)量值，分儲(chu)6通道(dao)并可分別查(cha)看。

l、消音按鈕：附于(yu)手柄

m、操作溫度：-10℃~+50℃

n、存放(fang)溫度：-10℃~+70℃

o、儀器箱尺寸（L×W×D）：450×310×142 mm

p、重(zhong)量(liang)：JT—3000主機箱內(nei)件（包括電池）1.2kg

 JT—3000拾振(zhen)器(qi)（附座插連線）  0.6kg

 ;手提箱包總重                  5.2kg

    1.4  供貨配置

放大器             1只（內(nei)置鎳(nie)氫電池組）

拾振(zhen)器             1只

聽音桿             1付

耳  機             1付

充電器     ;        1只

說明書             1本

保(bao)修卡(ka)             1份

手提鋁合金包裝箱   1只

備用電池組    ;     1塊

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