模塊號 | 簡介 |
8BVF0110H000.000-1 | ACOPOSmulti 進線濾波器 15A, 480V |
8BVF0440H000.001-2 | ACOPOSmulti 進線濾波器 44A, 480V, 增強的電流峰值負載能力 |
8BVF0880H000.000-1 | ACOPOSmulti 進線濾波器 89A, 480V |
[直流LCR濾波器] [單相LCR濾波器] [三相LCR濾波器] [軍用LCR濾波器] [濾波器插座]
北京都興科思檢測技術有限公司是一家專業(yè)從事EMI濾波器設計、開發(fā)、制造、銷售、EMC測試整改為一體的高新技術企業(yè),為廣大用戶提供專業(yè)的、全面的電磁兼容服務。公司生產(chǎn)的EMI濾波器廣泛應用于電力、鐵路、軍工、通訊、家電、醫(yī)療電子、工控等領域;產(chǎn)品供貨周期短,性能可靠深受客戶好評。公司始終如一致力于依靠科技不斷創(chuàng)新,努力開發(fā)各種電磁兼容產(chǎn)品,以滿足日益飛速發(fā)展的電子產(chǎn)品需要。公司主要產(chǎn)品有EMI濾波器、脈沖群抑制器、磁珠、磁環(huán)、片狀濾波器、諧波濾波器,以及為廣大用戶提供測試整改服務。電子技術的高速發(fā)展給人們帶來了生活得便利和生活質(zhì)量提高,同時也使我們生存的電磁環(huán)境遭到很大的改變。電子產(chǎn)品間的相互干擾問題日益突出,為此國際和國內(nèi)都制定了相關的電磁兼容標準,如CE,UL,CSA,VDE、3C等。 公司以領先的技術與管理帶給您質(zhì)量的保證,以良好的信譽報答廣大用戶對我們的厚愛。秉承 “ 以科技為先導,以質(zhì)量贏信譽 ” 的經(jīng)營理念,將不斷應用新技術、新工藝、新材料、積極開發(fā)新品種為廣大用戶提供優(yōu)質(zhì)的EMC產(chǎn)品和更完善的服務。竭誠歡迎新老客戶攜手合作,共創(chuàng)輝煌。
電路功能:輸出頻率可調(diào)的三角波,脈沖波,正弦波。
電路結(jié)構:由運算放大器構成的比較器和積分器組成三角波和脈沖波信號發(fā)生器(特點:電路結(jié)構簡單,而且三角波幅度不會隨著頻率的變化而變化),三角波經(jīng)過低通濾波器后輸出正弦波。為比較電路的功能,項目中同時有個RC正弦波信號發(fā)生器。
調(diào)節(jié)方式:在決定信號頻率的電容器處設立元件插口,由實驗者經(jīng)過計算后將滿
足要求的電容器插接到電路上粗調(diào)信號頻率,由四位拔碼開關狀態(tài)選
擇決定信號頻率的電阻元件的阻值對電路信號頻率進行細調(diào)(16
步)。頻率可從幾百赫茲到幾十千赫茲(受通用型運算放大器性能的
限制,信號頻率不能太高)。
基本要求:實驗者能夠使用電鉻鐵焊接插接元器件的貼片元件,認識電路基本元
器件,使用萬用表測量電路電壓及頻率(很多萬用表有測量頻率的功
能),或者用示波器進行測量。
套件材料:電路設計電路制作電路測試電路調(diào)試指導書,雙面印刷板,各種元器
件和制作輔材。
數(shù)字示波器 數(shù)字濾波器 臺式數(shù)字示波器
Taisaw選型需要掌握的基本參數(shù):
聲表類:頻率、帶通、損耗、體積
VCO:頻率、電壓、靈敏度、體積
TCXO:頻率、電壓、溫度、浮動范圍、體積
OCXO:頻率、電壓、溫度、體積、版本。
TAISAW(TST)嘉碩TA0143A,
TAISAW(TST)嘉碩TA836GG,
TAISAW(TST)嘉碩TA881GG,
TAISAW(TST)嘉碩TA0747A
TAISAW(TST)嘉碩TA0748A
TAISAW(TST)嘉碩TA0391A TA836GG
TAISAW(TST)嘉碩TA0755A
TA0363A,
TA0235A
TA0174A,
TA0511A
TA0512A,
TA0976A
TA0981A.
TA0174A
TA1575BB
TA0330A
TA0331A
TA0494A
TA0175A
TA0862A
TA0967A
TA0394A
TA0638A
TA0391A 1745.5MHZ
TA0748A
TA0664A
TX0283D
TA836GG
TAISAW TA0245A 139 8 6.5 5.0x5.0x1.7 Pager
TAISAW TA0664A 1575.42MHZ 2MHZ 2.0x1.6x0.7
TAISAW TB0260A
TAISAW TB0572A 185.5 20 11.0 13.3x6.5x1.8
TAISAW TA0757A 1575.42 2 1.5 1.4x1.1x0.7
TAISAW TA1676A 445 20 3.3 3.8x3.8x1.43
TAISAW TZ1430A 30 2.5x2.0x0.6
TAISAW TA0363A 1842.5 75 3.8 3.0x3.0x1.4
TAISAW TA0174A 2140 60.00 3.5 3.0x3.0x1.4
TAISAW TA1118A 431 20 4.2 3.8x.3.8x1.4
TAISAW TA0416A
TAISAW TA1104A
TAISAW TA0232A
TAISAW TA0175A TA836GG
TAISAW TA0394A
TAISAW TA1442A
TAISAW TA0700A
TAISAW TA0406C
TAISAW TA881GG
TAISAW TA1636A 412.5MHZ
TAISAW TA0336A
TAISAW TA1039A
TAISAW TA0967A
TAISAW TB0501A
TAISAW TA0971A
TAISAW TX0283D
TAISAW TA0700A
TAISAW TA1404A
TAISAW TA0395A
TAISAW TB0460A
TAISAW TA0659A
TAISAW TA1153A
TAISAW TA1621A
TAISAW TA0550A
TAISAW TA0494A
TAISAW TA0862A
TAISAW TA0843A
TAISAW TA0672A 315 10 4 3.8x3.8x1.25
TAISAW TA0657A 315 0.6 2.5 3.0x3.0x1.3
TAISAW TA0234A 315 0.8 4 TO-39 Remote control
TAISAW TA0209A 315 0.8 4 5.0x5.0x1.7 Remote control
TAISAW TA0301A 315 0.8 4 3.8x3.8x1.3 Remote control
TAISAW TA0308A 315.15 0.8 4 5.0x5.0x1.65
TAISAW TA0283A 315.5 0.8 3.5 TO-39 Remote control
TAISAW TA0797A 340 6 3.5 5.0x5.0x1.7
TAISAW TA1002A 340 6 3.5 3.8x3.8x1.4
TAISAW TA0188A 343.5 4 4 5.0x5.0x1.65
TAISAW TA0964A 387.5 5 3 5.0x5.0x1.7
TAISAW TA0376A 390 1.1 4 5.0x5.0x1.7 Remote control
TAISAW TA0559A 394 4 4 5.0x5.0x1.7
TAISAW TA0875A 402 16 3 5.0x5.0x1.7
TAISAW TA0980A 402 4 4.5 3.8x3.8x1.4
TAISAW TA0520A 403.5 3 2.5 3.8x.3.8x1.4
TAISAW TA0997A 403.5 3 2.5 3.8x3.8x1.4
TAISAW TA0529A 403.5 3 3.5 3.8x3.8x1.4
TAISAW TA0489A 403.5 3 3 3.8x3.8x1.4
TAISAW TA0309A 403.55 1.15 4 5.0x5.0x1.65
TAISAW TA0340A 403.966 1 3 3.8x3.8x1.7 Remote control
TAISAW TA0417A 408.5 16 2.8 5.0x5.0x1.7
TAISAW TA0396A 413.9 1 3.8 F-11
TAISAW TA0701A 414 8 4.5 F-11
TAISAW TA0526A 415.4 5 3.6 5.0x5.0x1.7
TAISAW TA0525A 415.4 5 3.6 3.8x3.8x1.4
TAISAW TA0592A 416.405 5 3.6 3.8x3.8x1.4
TAISAW TA0409A 420 20 3.5 7.0x5.0x1.7
TAISAW TA0311A 420 18 2.8 5.0x5.0x1.7
TAISAW TA0418A 424 18 2.8 5.0x5.0x1.7
TAISAW TA0706A 426 2 4 3.8x3.8x1.25
TAISAW TA0192A 426.1 0.138 3.5 5.0x5.0x1.7 Remote control
TAISAW TA0527A 427.8 5 3.6 5.0x5.0x1.7
TAISAW TA0593A 428.835 5 3.6 3.8x3.8x1.4
TAISAW TA0707A 429.25 2 4 3.8x3.8x1.25
TAISAW TA0655A 430 4 3.6 3.8x3.8x1.25
TAISAW TA0692A 433 20 2.8 3.8x3.8x1.25
TAISAW TA0286A 433 8 4.5 5.0x5.0x1.65 Remote control
TAISAW TA433K1 433 8 4.5 F-11
TAISAW TA0723A 433.42 0.5 5 3.8x3.8x1.4
TAISAW TA0293A 433.42 0.5 4 5.0x5.0x1.7 Remote control
TAISAW TA0708A 433.5 3.2 4 3.8x3.8x1.25
TAISAW TA0278A 433.92 4 3.5 5.0x5.0x1.65 Remote control
TAISAW TA0255A 433.92 4 3.5 F-11 Remote control
TAISAW TA0322A 433.92 0.95 4 3.0x3.0x1.3 Remote control
TAISAW TA0537A 433.92 1.74 3.7 3.8x3.8x1.5
TAISAW TA0277A 433.92 0.6 4 3.8x3.8x1.3 Remote control
TAISAW TA0264A 433.92 0.6 4 5.0x5.0x1.7 Remote control
TAISAW TA0649A 433.92 1.74 2.7 3.0x3.0x1.3
TAISAW TA0412A 433.92 0.95 4 5.0x5.0x1.7
TAISAW TA0300A 433.92 1 3 3.8x3.8x1.3 Remote control
TAISAW TA0944A 433.92 1.6 2.9 3.0x3.0x1.3
TAISAW TA0307A 433.92 0.7 4 5.0x5.0x1.65
TAISAW TA0306A 434.26 1 3 3.8x3.8x1.4
TAISAW TA0693A 435 10 3.3 5.0x5.0x1.7
TAISAW TA0411A 440 19 2.8 5x5x1.7
TAISAW TA1043A 441 19 2.8 5.0x5.0x1.7
TAISAW TA0419A 441 19 2.8 5.0x5.0x1.7
TAISAW TA0594A 441.265 5 3.6 3.8x3.8x1.4
TAISAW TA446E1 446 8 4.5 F-11 Pager
TAISAW TA0381A 446 8 4.5 3.8x3.8x1.4 FRS
TAISAW TA0709A 448 3 4 3.0x3.0x1.3
TAISAW TA0710A 448 3 4 3.8x3.8x1.25
TAISAW TA450E1 450 8 4.5 F-11 Pager
TAISAW TZ0940A 453.695 5 3.6 3.8x3.8x1.4
TAISAW TA454E1 454 8 4.5 F-11 Pager
TAISAW TA0472A 455 0.5 4 3.8x3.8x1.7
TAISAW TA0473A 456 0.5 4 3.8x3.8x1.7
TAISAW TA1010A 460 20 3.2 3.8x3.8x1.4
TAISAW TA0474A 460 0.5 4 3.8x3.8x1.7
TAISAW TA0731A 460 20 3 5.0x5.0x1.7
TAISAW TA0420A 460 20 2.8 5.0x5.0x1.7
TAISAW TA0312A 460 20 3 5.0x5.0x1.65
TAISAW TA0475A 462.5375 0.5 4 3.8x3.8x1.7
TAISAW TA465FD 465 4 4 5.0x5.0x1.7 Pager
TAISAW TA0313A 465 20 2.9 5.0x5.0x1.7 DAB
TAISAW TA0266A 465.1375 5.175 4 5.0x5.0x1.7 Remote control
TAISAW TA466E1 466 8 4.5 F-11 Pager
TAISAW TA0476A 467.5375 0.5 4 3.8x3.8x1.7
TAISAW TA1063A 469 14 3.5 3.8x3.8x1.4
TAISAW TA470FD 470 4 4 5.0x5.0x1.65
TAISAW TA0884A 475 8 4.5 F-11
TAISAW TA0568A 475 12 3.3 5.0x5.0x1.7
TAISAW TE0107A 479.5 26/18 22.5 5.0x5.0x1.65
TAISAW TE0103A 479.5 27/18 16 4.0x2.5x0.8 Satellite TV
TAISAW TA0421A 480 20 2.8 5.0x5.0x1.7
TAISAW TA0555A 480 8 3.1 5.0x5.0x1.7
TAISAW TA0524A 499.25 1 5 5.0x5.0x1.7
TAISAW TA0245A 139 8 6.5 5.0x5.0x1.7 Pager
TAISAW TA139E1 139 8 6.5 F-11 Pager
TAISAW TA147E1 147 8 6.5 F-11 Pager
TAISAW TA155FD 155 8 6.5 5.0x5.0x1.65 Pager
TAISAW TA155E1 155 8 6.5 F-11 Pager
TAISAW TA0942A 159.0125 6.025 2.8 7.0x5.0x1.8
TAISAW TA0289A 159.0125 6.025 2.8 7.0x5.0x2.0
TAISAW TA0395A 159.1625 5.725 3.8 7.0x5.0x2.0
TAISAW TA163E1 163 8 6.5 F-11 Pager
TAISAW TA0168A 163 8 6.5 5.0x5.0x1.7 Pager
TAISAW TA0437A 169 6 2.8 5.0x5.0x1.7
TAISAW TA0377A 169 6 2.8 7.0x5.0x2.0
TAISAW TA171E1 171 8 6.5 F-11 Pager
TAISAW TA0181A 171 8 6.5 5.0x5.0x1.7 Pager
TAISAW TA0574A 180.175 6 2.8 5.0x5.0x1.7
TAISAW TA0378A 184 6 2.8 7.0x5.0x2.0
TAISAW TA0461A 184 6 2.8 5.0x5.0x1.7
TAISAW TA0575A 188.175 6 2.8 5.0x5.0x1.7
TAISAW TA0369A 220 4 4.2 5.0x5.0x1.7
TAISAW TA0576A 221.6 10 3 5.0x5.0x1.7
TAISAW TA0422A 230.4 1 3.8 5.0x5.0x1.7
TAISAW TA0998A 250 1 3.8 5.0x5.0x1.7
TAISAW TA0560A 268 4 4 5.0x5.0x1.7
TAISAW TA0510A 280 8 4.5 5.0x5.0x1.7
TAISAW TA280E1 280 8 4.5 F-11 Pager
TAISAW TA0204A 281 8 4.5 3.8X3.8X1.3 Pager
TAISAW TA284FD 284 8 4.5 5.0x5.0x1.5 Pager
TAISAW TA0205A 284 8 4.5 3.8X3.8X1.3 Pager
TAISAW TA0486A 285 8 4.5 5.0x5.0x1.53
TAISAW TA0544A 290 7 4.5 F-11
TAISAW TA0187A 307.5 4 4 5.0x5.0x1.65 Remote control
TAISAW TA0499A 311.04 0.4 4 3.8x3.8x1.7
TAISAW TA0615A 311.06 2 3 3.8x3.8x1.25
TAISAW TA0365A 312.15 0.95 4 3.8x3.8x1.7 Remote control
TAISAW TA0518A 313.85 0.8 4 3.8x3.8x1.7
TAISAW TA0705A 315 0.6 2.5 3.8x3.8x1.25
TAISAW TA0500A 315 0.8 4 3.8x3.8x1.5
TAISAW TA0672A 315 10 4 3.8x3.8x1.25
TAISAW TA0657A 315 0.6 2.5 3.0x3.0x1.3
TAISAW TA0234A 315 0.8 4 TO-39 Remote control
TAISAW TA0209A 315 0.8 4 5.0x5.0x1.7 Remote control
TAISAW TA0301A 315 0.8 4 3.8x3.8x1.3 Remote control
TAISAW TA0308A 315.15 0.8 4 5.0x5.0x1.65
TAISAW TA0283A 315.5 0.8 3.5 TO-39 Remote control
TAISAW TA0797A 340 6 3.5 5.0x5.0x1.7
TAISAW TA1002A 340 6 3.5 3.8x3.8x1.4
TAISAW TA0188A 343.5 4 4 5.0x5.0x1.65
TAISAW TA0964A 387.5 5 3 5.0x5.0x1.7
TAISAW TA0376A 390 1.1 4 5.0x5.0x1.7 Remote control
TAISAW TA0559A 394 4 4 5.0x5.0x1.7
TAISAW TA0875A 402 16 3 5.0x5.0x1.7
TAISAW TA0980A 402 4 4.5 3.8x3.8x1.4
TAISAW TA0520A 403.5 3 2.5 3.8x.3.8x1.4
TAISAW TA0997A 403.5 3 2.5 3.8x3.8x1.4
TAISAW TA0529A 403.5 3 3.5 3.8x3.8x1.4
TAISAW TA0489A 403.5 3 3 3.8x3.8x1.4
TAISAW TA0309A 403.55 1.15 4 5.0x5.0x1.65
TAISAW TA0340A 403.966 1 3 3.8x3.8x1.7 Remote control
TAISAW TA0417A 408.5 16 2.8 5.0x5.0x1.7
TAISAW TA0396A 413.9 1 3.8 F-11
TAISAW TA0701A 414 8 4.5 F-11
TAISAW TA0526A 415.4 5 3.6 5.0x5.0x1.7
TAISAW TA0525A 415.4 5 3.6 3.8x3.8x1.4
TAISAW TA0592A 416.405 5 3.6 3.8x3.8x1.4
TAISAW TA0409A 420 20 3.5 7.0x5.0x1.7
TAISAW TA0311A 420 18 2.8 5.0x5.0x1.7
TAISAW TA0418A 424 18 2.8 5.0x5.0x1.7
TAISAW TA0706A 426 2 4 3.8x3.8x1.25
TAISAW TA0192A 426.1 0.138 3.5 5.0x5.0x1.7 Remote control
TAISAW TA0527A 427.8 5 3.6 5.0x5.0x1.7
TAISAW TA0593A 428.835 5 3.6 3.8x3.8x1.4
TAISAW TA0707A 429.25 2 4 3.8x3.8x1.25
TAISAW TA0655A 430 4 3.6 3.8x3.8x1.25
TAISAW TA0692A 433 20 2.8 3.8x3.8x1.25
TAISAW TA0286A 433 8 4.5 5.0x5.0x1.65 Remote control
TAISAW TA433K1 433 8 4.5 F-11
TAISAW TA0723A 433.42 0.5 5 3.8x3.8x1.4
TAISAW TA0293A 433.42 0.5 4 5.0x5.0x1.7 Remote control
TAISAW TA0708A 433.5 3.2 4 3.8x3.8x1.25
TAISAW TA0278A 433.92 4 3.5 5.0x5.0x1.65 Remote control
TAISAW TA0255A 433.92 4 3.5 F-11 Remote control
TAISAW TA0322A 433.92 0.95 4 3.0x3.0x1.3 Remote control
TAISAW TA0537A 433.92 1.74 3.7 3.8x3.8x1.5
TAISAW TA0277A 433.92 0.6 4 3.8x3.8x1.3 Remote control
TAISAW TA0264A 433.92 0.6 4 5.0x5.0x1.7 Remote control
TAISAW TA0649A 433.92 1.74 2.7 3.0x3.0x1.3
TAISAW TA0412A 433.92 0.95 4 5.0x5.0x1.7
TAISAW TA0300A 433.92 1 3 3.8x3.8x1.3 Remote control
TAISAW TA0944A 433.92 1.6 2.9 3.0x3.0x1.3
TAISAW TA0307A 433.92 0.7 4 5.0x5.0x1.65
TAISAW TA0306A 434.26 1 3 3.8x3.8x1.4
TAISAW TA0693A 435 10 3.3 5.0x5.0x1.7
TAISAW TA0411A 440 19 2.8 5x5x1.7
TAISAW TA1043A 441 19 2.8 5.0x5.0x1.7
TAISAW TA0419A 441 19 2.8 5.0x5.0x1.7
TAISAW TA0594A 441.265 5 3.6 3.8x3.8x1.4
TAISAW TA446E1 446 8 4.5 F-11 Pager
TAISAW TA0381A 446 8 4.5 3.8x3.8x1.4 FRS
TAISAW TA0709A 448 3 4 3.0x3.0x1.3
TAISAW TA0710A 448 3 4 3.8x3.8x1.25
TAISAW TA450E1 450 8 4.5 F-11 Pager
TAISAW TZ0940A 453.695 5 3.6 3.8x3.8x1.4
TAISAW TA454E1 454 8 4.5 F-11 Pager
TAISAW TA0472A 455 0.5 4 3.8x3.8x1.7
TAISAW TA0473A 456 0.5 4 3.8x3.8x1.7
TAISAW TA1010A 460 20 3.2 3.8x3.8x1.4
TAISAW TA0474A 460 0.5 4 3.8x3.8x1.7
TAISAW TA0731A 460 20 3 5.0x5.0x1.7
TAISAW TA0420A 460 20 2.8 5.0x5.0x1.7
TAISAW TA0312A 460 20 3 5.0x5.0x1.65
TAISAW TA0475A 462.5375 0.5 4 3.8x3.8x1.7
TAISAW TA465FD 465 4 4 5.0x5.0x1.7 Pager
TAISAW TA0313A 465 20 2.9 5.0x5.0x1.7 DAB
TAISAW TA0266A 465.1375 5.175 4 5.0x5.0x1.7 Remote control
TAISAW TA466E1 466 8 4.5 F-11 Pager
TAISAW TA0476A 467.5375 0.5 4 3.8x3.8x1.7
TAISAW TA1063A 469 14 3.5 3.8x3.8x1.4
TAISAW TA470FD 470 4 4 5.0x5.0x1.65
TAISAW TA0884A 475 8 4.5 F-11
TAISAW TA0568A 475 12 3.3 5.0x5.0x1.7
TAISAW TE0107A 479.5 26/18 22.5 5.0x5.0x1.65
TAISAW TE0103A 479.5 27/18 16 4.0x2.5x0.8 Satellite TV
TAISAW TA0421A 480 20 2.8 5.0x5.0x1.7
TAISAW TA0555A 480 8 3.1 5.0x5.0x1.7
TAISAW TA0524A 499.25 1 5 5.0x5.0x1.7
HWXB-5G無功補償專用高通濾波器 |
當電網(wǎng)中存在諧波時,無功補償裝置投入運行后可能會導致諧波放大,致使電容器過載燒毀。 |
為了消除諧波的影響,通常的方法是將電容器串連電抗器,由于無功補償裝置中往往有多臺電容器, |
因此需要增加多臺電抗器,電抗器的成本高,損耗大,體積大,噪音大,使用串連電抗器實屬無奈之舉。 |
理論研究與實踐經(jīng)驗均表明,導致電容器燒毀事故的主要原因是電網(wǎng)中存在高次分數(shù)諧波。低次整數(shù) |
諧波雖然會引起電容器電流增大,但通常不會使電容器電流超過最大允許電流(1.3倍額定電流)。而電容 |
器卻可能與變壓器漏感對高次分數(shù)諧波形成串連諧振,導致電流急劇增大(最大可能超過額定電流10倍) |
,以致燒毀電容器。 |
沈陽華威電力設備有限公司開發(fā)的HWXB-5G無功補償專用高通濾波器,直接并連在變壓器二次側(cè), |
對高次分數(shù)諧波呈現(xiàn)極低的阻抗,從而使電網(wǎng)中的高次分數(shù)諧波污染被變壓器漏感所阻擋而不能進入變壓 |
器二次測,因此了無功補償裝置的正常運行。 |
HWXB-5G無功補償專用高通濾波器價格低,損耗小,體積小,無噪音,性高,連續(xù)運行,無需控 |
制。適用于諧波由電網(wǎng)竄入而影響無功補償裝置正常運行的場合。 |
KH3202(R)型雙通道濾波器(美國原裝) |
3202(R)型濾波器具有頻率選擇特性,每通道可完成4階波特沃斯低通或高通濾波功能,衰減速率為24db/倍頻程,載止頻率為10HZ-2MHZ,分為5檔,連續(xù)可調(diào),儀器可以作為兩個獨立的濾波器使用,也可兩通道串聯(lián),并聯(lián)使用完成帶通,帶阻的功能。 |
功能:低通,高通,帶通,帶阻 |
衰減速率:在高通,低通方式,每通道24db/倍頻程,雙通道串聯(lián)可達48db/倍頻程; |
最大衰減:大于80db |
截止頻率校正精度:±5% |
輸出特性:最大輸出電壓3V(值);最大輸出電流10mA;阻抗:50Ω |
機內(nèi)噪聲:小于100μV |
浮低操作:可以浮地,也可接地,由開關控制 |