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                                                                                                                                        現在位置首頁>自動化儀器儀表>傳感器/變送器>傳感器/變送器>SZCB-01-B01磁電轉速傳感器工作原理
                                                                                                                                        SZCB-01-B01磁電轉速傳感器工作原理
                                                                                                                                        SZCB-01-B01磁電轉速傳感器工作原理
                                                                                                                                        • SZCB-01-B01磁電轉速傳感器工作原理

                                                                                                                                        SZCB-01-B01磁電轉速傳感器工作原理

                                                                                                                                        產品報價:500元

                                                                                                                                        更新時間:2022/3/18 15:46:55

                                                                                                                                        地:江蘇

                                                                                                                                        牌:六和測控

                                                                                                                                        號:SZCB-01-B01

                                                                                                                                        廠商性質: 1,

                                                                                                                                        公司名稱: 徐州六和測控技術有限公司

                                                                                                                                        產品關鍵詞: 磁阻傳感器   磁電傳感器   測速探頭   SZCB-01-B01   轉速傳感器  

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                                                                                                                                        吳金格 : (18752139060) (0516-83501219)

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                                                                                                                                        SZCB-01-B01磁電轉速傳感器工作原理

                                                                                                                                           SZCB-01-B01轉速傳感器是將旋轉物體的轉速轉換為電量輸出的傳感器。轉速傳感器屬于間接式測量裝置,可用機械、電氣、磁、光和混合式等方法制造。按信號形式的不同,轉速傳感器可分為模擬式和數字式兩種。

                                                                                                                                        大多數都輸出脈沖信號(近似正弦波或矩形波)。針對脈沖信號測轉速的方法有:頻率積分法(也就是F/V轉換法,其直接結果是電壓或電流),和頻率運算法(其直接結果是數字)。

                                                                                                                                          在自動化技術中,旋轉運動速度測量較多,而且直線運動速度也經常通過旋轉速度間接測量。直流測速發電機可以將旋轉速度轉變成電信號。測速機要求輸出電壓與轉速間保持線性關系,并要求輸出電壓陡度大,時間及溫度穩定性好。

                                                                                                                                          測速機一般可分為直流式和交流式兩種。旋轉式速度傳感器與運動物體直接接觸。當運動物體與旋轉式速度傳感器接觸時,摩擦力帶動傳感器的滾輪轉動。裝在滾輪上的轉動脈沖傳感器,發送出一連串的脈沖。每個脈沖代表著一定的距離值,從而就能測出線速度。電磁感應式,在轉動的軸上安裝齒輪,外側是電磁線圈,轉動是由于輪齒間隙通過,得到方波變化的電壓,再推算出轉速。

                                                                                                                                          旋轉式速度傳感器與運動物體無直接接觸,葉輪的葉片邊緣貼有反射膜,流體流動時帶動葉輪旋轉,葉輪每轉動一周光纖傳輸反光一次,產生一個電脈沖信號??捎蓹z測到的脈沖數,計算出速度。


                                                                                                                                        SZCB-01-B01磁電轉速傳感器原理

                                                                                                                                          磁電式轉速傳感器是以磁電感應為基本原理來實現轉速測量的,磁電式轉速傳感器是由鐵芯、磁鋼、感應線圈等部件組成的,測量對象轉動時,轉速傳感器的線圈會產生磁力線,齒輪轉動會切割磁力線,磁路由于磁阻變化,在感應線圈內產生電動勢。

                                                                                                                                          磁電式轉速傳感大的感應電勢產生的電壓大小,和被測對象轉速有關,被測物體的轉速越快輸出的電壓也就越大,也就是說輸出電壓和轉速成正比。但是在被測物體的轉速超過磁電式轉速傳感器的測量范圍時,磁路損耗會過大,使得輸出電勢飽和甚至是銳減。


                                                                                                                                        SZCB-01-B01磁電轉速傳感器的特點

                                                                                                                                          磁電式轉速傳感大的工作方式決定了它有很強的抗干擾性,能夠在煙霧、油氣、水汽等環境中工作。磁電式轉速傳感器輸出的信號強,測量范圍廣,齒輪、曲軸、輪輻等部件,及表面有縫隙的轉動體都可測量。

                                                                                                                                          磁電式轉速傳感器的工作維護成本較低,運行過程無需供電,完全是靠磁電感應來實現測量,同時磁電式轉速傳感器的運轉也不需要機械動作,無需潤滑。磁電式轉速傳感器的結構緊湊、體積小巧、安裝使用方便,可以和各種二次儀表搭配使用。

                                                                                                                                         

                                                                                                                                        SZCB-01-B01磁電轉速傳感器工作原理 SZCB-01-B01磁電轉速傳感器工作原理



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