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WHELEN于1952年發(fā)明了 個旋轉(zhuǎn)航空燈塔，由此創(chuàng)立了WHELEN公司。WHELEN 航空燈的發(fā)展幫助惠倫進(jìn)入汽車安全照明行業(yè)。 防，EMS和DOT專業(yè)人員以及許多其他行業(yè)提供安全照明。汽車領(lǐng)域的產(chǎn)量使惠倫能夠投 自動化裝配設(shè)備，以便在 圍內(nèi)展開競爭。在二十世紀(jì)七十年代，惠倫推出了室外警報警號 - *電子化，不僅能夠警告音，還能夠發(fā)出高功率的語音信息。WHELEN的目標(biāo)是將創(chuàng)新的救生產(chǎn)品更快地推向市場，同時在整個過程中保持嚴(yán)格的質(zhì)量控制。
運算放大器具有雙電源和單電源兩種供電方式，對于采用雙電源供電的運放而言，其輸出值允許在零電壓上下變化，差動輸入電壓為零時也可將輸出置零;而對于采用單電源供電的運放而言，其輸出值僅允許在電源與地之間的某范圍內(nèi)進(jìn)行變化。
對于一般運算放大器而言，其輸入電位要求在負(fù)電源上面某數(shù)值到正電源下面某數(shù)值范圍內(nèi)，但經(jīng)特殊設(shè)計后也可以使其在負(fù)電源至正電源整個范圍內(nèi)變化，甚至稍高于正電源或稍低于負(fù)電源，這種運放被稱為軌到軌輸入運算放大器。
WHELEN放大器WHELEN揚聲器WHELEN音響WHELEN傳感器模塊京南華建（天津）科技有限公司我們熱忱地希望盡我們的努力，力爭優(yōu)惠的產(chǎn)品價格，供貨周期以及服務(wù)質(zhì)量，能夠為您解決進(jìn)口備件方面的問題。優(yōu)勢進(jìn)口產(chǎn)品主要有：傳感器，測速電機，接近開關(guān)，電子尺，編碼器，控制器、分析儀，光纖，光柵，插裝閥，報，電纜，拖鏈，分配器，馬達(dá)，減速機，繼電器、緩沖器和進(jìn)口五金等
１、揚聲器的結(jié)構(gòu)
揚聲器有許多種類，但其基本的工作原理是相似的，均是一種將電信號轉(zhuǎn)換為聲音信號進(jìn)行重放的元件。目前使用最為廣泛的是電動式揚聲器，它由振動膜、音圈、磁鐵、支架等組成。
２、揚聲器的工作原理
當(dāng)揚聲器的音圈通入音頻電流后音圈在電流的作用下便產(chǎn)生交變的磁場，磁鐵同時也產(chǎn)生一個大小和方向不變的恒定的磁場。由于音圈所產(chǎn)生磁場的大小和方向隨音頻電流的變化不斷地在改變，這樣兩個磁場的相互作用使音圈作垂直于音圈中電流方向的運動，由于音圈和振動膜相連，從而帶動振動膜產(chǎn)生振動，由振動膜振動引起空氣的振動而發(fā)出聲音。當(dāng)輸入音圈的電流越大，其磁場的作用力就越大，振動膜振動的幅度也就越大，聲音則越響。揚聲器發(fā)出高音的部分主要在振動膜的中央，當(dāng)揚聲器振動膜的中央材質(zhì)越硬，則其重放的聲音效果越好。揚聲器發(fā)出低音的部分主要在振動膜的邊緣，如果揚聲器的振動膜邊緣較為柔軟且紙盆口徑較大，則揚聲器發(fā)出的低音效果越好。另外，球頂揚聲器在日前市場中的音箱中使用很多。大家知道，高音揚聲器由于其工作頻率很高，在重放高音時其振膜會在磁鐵的的磁路氣隙中作高速運動，因此要求高音揚聲器的振膜能夠?qū)λ沧兊母哳l信號作出迅速的反應(yīng)．并且能夠承受高速運動而產(chǎn)生的空氣壓力，因此對于振膜的制作材料要求質(zhì)量要輕，并要有足夠的強度。
WHELEN揚聲器SA315P中國區(qū)銷售
Lights:
-Whelen TBL by RobertTM
-Whelen Ion scratch modeled by Five0/OfficerFive0
converted to gta 5 by Five0/OfficerFive0
-Avengers by EVI
-Design by Code 3 PSE
Completely scratch modelled and textured by Macgregor
Lighthead textures scratch rendered by Macgregor
Stuff:
-Console 3 pack modeled by: Twurtleee
Consoles Textured by: Twurtleee
-Fedsig Unitrol Touchmaster scratch modeled by Five0/OfficerFive0
converted to gta 5 by Five0/OfficerFive0
-Whelen Cencom Sapphire scratch modeled by Five0/OfficerFive0
converted to gta 5 by Five0/OfficerFive0
-Motorola XTL5000 radio by OfficerUnderwood
-Antenna by GUMP
-Pocket Printer - Model is scratch built by johnclark1102- Texture is made by diablozer0d617
- Toughbook stand Modeled, Textured by Cap'n Crunch. Textures by Cap'n Crunch. Converted to V by VooDoo
-Gun Rack by BxBugs123
-Toughbook - BxBugs123
-Partition-BxBugs123
-ALPR Converted and textured by MrPotato
Textures by bxbugs
Whelen SA315P Speaker scratch modeled, textured, and converted to GTA V by HDgamerzPC
- WatchGuard 4RE HD Mini Zoom® Camera scratch modeled, textured, and converted to GTA V by HDgamerzPC
-Kustom Signals Golden Eagle Radar modeled and textured by Gump
-Spotlight by BxBugs
- GoRhino CVPI by Carper, Textures by Carper
-Little Trees Car-Freshner:
Modeled By Carbon Creations,
Converted To GTA V By OfficerWalters,
Textures By Maurice97
Setina PB-450 By Vertex3d
- 2014 Dodge Charger Model from Real Racing 3, Converted to IV by GeorgieMoon, Converted & Modified for GTA V by Carper, edits by BxBugs123
- Headlights, Taillights, Interior from Foza, Fitted, Modified, Textured & Converted for GTA V by Bxbugs123, Interior Textures Remade by Carper with minor edits by Bxbugs123.
- Chassis L2,s & L3's Modeled, Converted & Textured for GTA V by Bxbugs123.
- Inner Rim by GerryStudio, Converted & Textured For GTA V by Carper
2010 Ford Taurus SHO by Turn 10 Studios, modified into 2016 Ford Taurus nterceptor by OfficerUnderwood
Rear bumper, headlamps, & dash by be fast, modified by OfficerUnderwood & Carper
Front bumper by Ridgerunner, Grill by Vertex3D, modified by OfficerUnderwood
Chassis parts by Ubisoft, Reverse lights & Gauges by OfficerUnderwood
Rims by BxBugs123, Centercap by Carper
2005 Impala LS by Ubisoft
Modifed into 2016 LPV and converted to GTA V by OfficerUnderwood
Grill by unknown (From Tahoe)& Seats by Ubisoft, edited by OfficerUnderwood
Impala side badge by OfficerFiveO
Wheels by 0taku
> Model is 2010 Chevrolet Silverado from The Crew, converted to GTA V by Dimon
> Heavily modified, templated, and optimized by Izick
> Underbody by Shadydk311
> Miscellaneous textures from Assetto Corsa, dial textures by HDGamerzPC
> Miscellaneous edits by Matt
> Rims by BxBugs (modified by Carper), tire textures by EVI, and converted to GTAV by Carper
Lights:
- Whelen ION Series Super-LED scratch modeled, textured, and converted to GTA V by HDgamerzPC
-Whelen Ion scratch modeled by Five0/OfficerFive0
converted to gta 5 by Five0/OfficerFive0
-SpitFire Plus By Shmurda
-Whelen Vertex scratch modeled by Five0/OfficerFive0
converted to gta 5 by Five0/OfficerFive0
-Avengers by EVI
-Design by Code 3 PSE
Completely scratch modelled and textured by Macgregor
Lighthead textures scratch rendered by Macgregor
Stuff:
-Console 3 pack modeled by: Twurtleee
Consoles Textured by: Twurtleee
-Fedsig Unitrol Touchmaster scratch modeled by Five0/OfficerFive0
converted to gta 5 by Five0/OfficerFive0
-Whelen Cencom Sapphire scratch modeled by Five0/OfficerFive0
converted to gta 5 by Five0/OfficerFive0
-Motorola XTL5000 radio by OfficerUnderwood
-Antenna by GUMP
-Pocket Printer - Model is scratch built by johnclark1102- Texture is made by diablozer0d617
- Toughbook stand Modeled, Textured by Cap'n Crunch. Textures by Cap'n Crunch. Converted to V by VooDoo
-Gun Rack by BxBugs123
-Toughbook - BxBugs123
-Partition-BxBugs123
-ALPR Converted and textured by MrPotato
Textures by bxbugs
Whelen SA315P Speaker scratch modeled, textured, and converted to GTA V by HDgamerzPC
- WatchGuard 4RE HD Mini Zoom® Camera scratch modeled, textured, and converted to GTA V by HDgamerzPC
-Kustom Signals Golden Eagle Radar modeled and textured by Gump
-Spotlight by BxBugs
- GoRhino FPIS by Carper, Textures by Carper
- GoRhino 2014 Charger by Carper, Textures by Carper
D&R Windows bars by tomcat
Impala Pushbar by BxBugs
Silverado wrap by BlackJesus
Little Trees Car-Freshner:
Modeled By Carbon Creations,
Converted To GTA V By OfficerWalters,
Textures By OfficerWalters.
Bedcap by Jedahdiah
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