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    深圳眾事德控制系統有限公司 

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    SICK傳感器是以光電器件作為轉換元件的傳感器。它可用于檢測直接引起光量變化的非電量,如光強、光照度、輻射測溫、氣體成分分析等;也可用來檢測能轉換成光量變化的其他非電量,如零件直徑、表面粗糙度、應變、位移、振動、速度、加速度,以及物體的形狀、工作狀態的識別等。光電式傳感器具有非接觸、響應快、性能可靠等特點,因此在工業自動化裝置和機器人中獲得廣泛應用。,新的光電器件不斷涌現,特別是CCD圖像傳感器的誕生,為SICK傳感器傳感器的進一步應用開創了新的一頁

     

    注釋: CCD(電荷耦合器件)圖像傳感器(光學影像轉化為數字信號)

    優點: CCD圖像傳感器作為一種新型光電轉換器現已被廣泛應用于攝像、圖像采集、掃描儀以及工業測量等領域。作為攝像器件,與攝像管相比,CCD圖像傳感器有體積小、重量輕、分辨率高、靈敏度高、動態范圍寬、光敏元的幾何精度高、光譜響應范圍寬、工作電壓低、功耗小、壽命長、抗震性和抗沖擊性好、不受電磁場干擾和可靠性高等一系列優點。

     

    工作原理:

    SICK傳感器是采用光電元件作為檢測元件的傳感器。它首先把被測量的變化轉換成光信號的變化,然后借助光電元件進一步將光信號轉換成電信號。光電傳感器一般由光源、光學通路和光電元件三部分組成。由光通量對光電元件的作用原理不同所制成的光學測控系統是多種多樣的,按光電元件(光學測控系統)輸出量性質可分二類,即模擬式光電傳感器和脈沖(開關)式光電傳感器.模擬式光電傳感器是將被測量轉換 光電傳感器成連續變化的光電流,它與被測量間呈單值關系.模擬式光電傳感器按被測量(檢測目標物體)方法可分為透射(吸收),漫反射式,遮光式(光束阻檔)三大類.所謂透射式是指被測物體放在光路中,恒光源發出的光能量穿過被測物,部份被吸收后,透射光投射到光電元件上;所謂漫反射式是指恒光源發出的光投射到被測物上,再從被測物體表面反射后投射到光電元件上;所謂遮光式是指當光源發出的光通量經被測物光遮其中一部份,使投射剄光電元件上的光通量改變,改變的程度與被測物體在光路位置有關. 光敏二極管是最常見的光傳感器。光敏二極管的外型與一般二極管一樣,只是它的管殼上開有一個嵌著玻璃的窗口,以便于光線射入,為增加受光面積,PN結的面積做得較大,光敏二極管工作在反向偏置的工作狀態下,并與負載電阻相串聯,當無光照時,它與普通二極管一樣,反向電流很?。?/span><µA),稱為光敏二極管的暗電流;當有光照時,載流子被激發,產生電子-空穴,稱為光電 光電傳感器載流子。在外電場的作用下,光電載流子參于導電,形成比暗電流大得多的反向電流,該反向電流稱為光電流。光電流的大小與光照強度成正比,于是在負載電阻上就能得到隨光照強度變化而變化的電信號。 光敏三極管除了具有光敏二極管能將光信號轉換成電信號的功能外,還有對電信號放大的功能。光敏三級管的外型與一般三極管相差不大,一般光敏三極管只引出兩個極——發射極和集電極,基極不引出,管殼同樣開窗口,以便光線射入。為增大光照,基區面積做得很大,發射區較小,入射光主要被基區吸收。工作時集電結反偏,發射結正偏。在無光照時管子流過的電流為暗電流Iceo=1+β)Icbo(很?。?,比一般三極管的穿透電流還??;當有光照時,激發大量的電子-空穴對,使得基極產生的電流Ib增大,此刻流過管子的電流稱為光電流,集電極電流Ic=1+β)Ib,可見光電三極管要比光電二極管具有更高的靈敏度。




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    DFS60B-TDEA01000
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    DFS60B-S1EA00002
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    DFS60B-BCEL01024
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    DFS60B-THEC00008
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    DFS60B-S4AB02500
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    DFS60B-S4AM08192
    DFS60B-S4EB00002
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    DFS60B-S1AB01024
    DFS60B-BDAA05000
    DFS60B-BGCK04096
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    DFS60B-BFAA05000
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    DFS60B-BECC00512
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    DFS60B-T8EA10000
    DFS60B-S4EB00020
    DFS60B-S1EC00254
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    DFS60B-S4AB01024
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    DFS60B-S1UB01500
    DFS60B-S1AM00600
    DFS60B-TGAL04096
    DFS60B-S4AC00200
    DFS60B-THAK01024
    DFS60B-BEVA05000
    DFS60B-BEVA00400
    DFS60B-S4WA02857
    DFS60B-BHCA04000
    DFS60B-THEN00400
    DFS60B-TEAM03600
    DFS60B-S1EA00492
    DFS60B-BCAA00400
    DFS60B-TJAK01024
    DFS60B-S4AM00030
    DFS60B-TAAA08192
    DFS60B-TEWA06050
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    DFS60B-S4WB00640
    DFS60B-S1WA00040
    DFS60B-S4EC00075
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    DFS60B-S4CB02500
    DFS60B-BDEA00600
    DFS60B-BEEA01000
    DFS60B-S1AB02500
    DFS60B-BDUA03000
    DFS60B-S4EB00050
    DFS60B-BBCA01000
    DFS60B-S4CK00600
    DFS60B-S4WA02000
    DFS60B-TDCA05000
    DFS60B-S4CB08192
    DFS60B-BHAM05000
    DFS60B-S1NA00S12
    DFS60B-T8AK01024
    DFS60B-TECK02048
    DFS60B-BDEA00788
    DFS60B-TEVA08192
    DFS60B-BEAN04096
    DFS60B-BEAK00064
    DFS60B-S1WA05000
    DFS60B-S4AL01000
    DFS60B-THAK02048
    DFS60B-S4WA04096
    DFS60B-THEM00800
    DFS60B-S1AL08192
    DFS60B-TDCK00500
    DFS60B-BEEA10000
    DFS60B-S1VA01000
    DFS60B-S1VA03600
    DFS60B-S4WA01000
    DFS60B-TEAN02500
    DFS60B-BJCK02500
    DFS60B-TEWA00030
    DFS60B-S1AB03600
    DFS60B-TGEA08192
    DFS60B-S1UA10000
    DFS60B-BGAK02048
    DFS60B-TDEK01000
    DFS60B-TEAA02500
    DFS60B-S4WA01800
    DFS60B-S1EA00100
    DFS60B-S4WA02500
    DFS60B-S4CA00874
    DFS60B-S4WA08192
    DFS60B-TEEA00500
    DFS60B-S4EC02000
    DFS60B-S1VA01200
    DFS60B-S4EB00300
    DFS60B-BEAM03600
    DFS60B-S4AL00030
    DFS60B-S4EK00300
    DFS60B-BGCA01200
    DFS60B-S4AB04096
    DFS60B-BECL10000
    DFS60B-S4EB04500
    DFS60B-TFAA04096
    DFS60B-TBEK00125

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