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WHELEN于1952年發明了 個旋轉航空燈塔，由此創立了WHELEN公司。WHELEN 航空燈的發展幫助惠倫進入汽車安全照明行業。 防，EMS和DOT專業人員以及許多其他行業提供安全照明。汽車領域的產量使惠倫能夠投 自動化裝配設備，以便在 圍內展開競爭。在二十世紀七十年代，惠倫推出了室外警報警號 - *電子化，不僅能夠警告音，還能夠發出高功率的語音信息。WHELEN的目標是將創新的救生產品更快地推向市場，同時在整個過程中保持嚴格的質量控制。
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進行變化。
對于一般運算放大器而言，其輸入電位要求在負電源上面某數值到正電源下面某數值范圍內，但經特殊設計后也可以使其在負電源至正電源整個范圍內變化，甚至稍高于正電源或稍低于負電源，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，力爭優惠的產品價格，供貨周期以及服務質量，能夠為您解決進口備件方面的問題。優勢進口產品主要有：傳感器，測速電機，接近開關，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，減速機，繼電器、緩沖器和進口五金等
１、揚聲器的結構
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換為聲音信號進行重放的元件。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
當揚聲器的音圈通入音頻電流后音圈在電流的作用下便產生交變的磁場，磁鐵同時也產生一個大小和方向不變的恒定的磁場。由于音圈所產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，從而帶動振動膜產生振動，由振動膜振動引起空氣的振動而發出聲音。當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。揚聲器發出高音的部分主要在振動膜的中央，當揚聲器振動膜的中央材質越硬，則其重放的聲音效果越好。揚聲器發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對瞬變的高頻信號作出迅速的反應．并且能夠承受高速運動而產生的空氣壓力，因此對于振膜的制作材料要求質量要輕，并要有足夠的強度。
WHELEN揚聲器SA315P中國區銷售
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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