電源已經成當今*重要的一部分,很多機器之所以能高速運轉靠的就是電源的能源供應。實際需求直接推動電源技術不斷發展和更新,如何自動檢測和顯示電流,并在過流、過壓等危害情況發生時具有自動保護功能成為電源設計的難點,隨著傳感器技術的快速發展。檢測電流或電壓的傳感器,即霍爾電流傳感器便應運而生并在我開始受到廣大電源設計者的青睞。
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霍爾電流傳感器可以測量電流范圍非常寬,從直流電到幾十千赫茲的交流電都可以檢測,其所依據的工作原理主要是霍爾效應原理。當原邊導線經過電流傳感器時,原邊電流IP會產生磁力線,原邊磁力線集中在磁芯氣隙周圍,內置在磁芯氣隙中的霍爾電片可產生和原邊磁力線成正比的,大小僅為幾毫伏的感應電壓,通過后續電子電路可把這個微小的信號轉變成副邊電流。
電源技術發展到今天,已融合了諸多技術領域的精華,人們有理由相信,在21世紀的電源技術中,傳感器也將發揮著至關重要的作用,所以傳感器工作者應該給予足夠重視設計和開發電流傳感器。
傳感器中的位移傳感器*近幾年興起的,尤其電容式位移傳感器幾年來備受青睞,這主要和它具有良好的穩定性有關。
電容式位移傳感器的電容器極板多為金屬材料,極板間襯物多為無機材料,如空氣、玻璃、陶瓷、石英等;因此可以在高溫、低溫強磁場、強輻射下長期工作,尤其是解決高溫高壓環境下的檢測難題。這使得電容式位移傳感器在這些環境下具有不可取代的作用。
該傳感器還可與控制室中的二次儀表或控制器相連,在線、連續、實時的檢測各種數據然后直接顯示,遠程控制和報警。實現數據存儲,積算、傳輸和控制功能。廣泛應用于各種注塑機中。
電容式位移傳感器尤其適合緩慢變化或微小量的測量,一般來說采用電容式傳感器進行檢測比較適宜。電容式位移傳感器的這些性能必然促使其應用范圍越來越廣泛。
New Mercoid Controls Pressure Switch DRW-7033-153U-4
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SUNX GA-15 DC Amplifier 12-24VDC W/ GH-25 Micro-Size Inductive Proximity Sensor
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RDCU-02C
1C31129G03
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1C31122G01
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5X00070G04
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5X00058G01
DSDI110A
SDCS-CON-1
SDCS-PIN-22
YPP110A
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ABB NVAR-31
ABB NTA105
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