欧美俱乐部派对群交資料

WZP-121熱電阻

如果您對該欧美俱乐部派对群交感興趣的話,可以
欧美俱乐部派对群交名稱: WZP-121熱電阻
欧美俱乐部派对群交型號: WZP-121
欧美俱乐部派对群交展商: 其它品牌
欧美俱乐部派对群交文檔: 無相關文檔

簡單介紹

WZP-121熱電阻系列工业用热电阻作为温度测量传感器,通常与溫度變送器,调节器以及显示仪表等配套使用,组成过程控制系统,用以直接测量或控制各种欧美俱乐部派对群交过程中-200℃-500℃范围内的液体,蒸汽和气体介质以及固体表面的温度。


WZP-121熱電阻  的詳細介紹
    
WZP-121熱電阻,工业用热电阻分铂热电阻和铜热电阻两大类。热电阻是利用物质在温度变化时自身电阻也随着发生变化的特性来测量温度的。热电阻的受热部分(感温元件)是用细金属丝均匀地双绕在绝缘材料制成的骨架上。当被测介质中有温度梯度存在时,所测得的温度是感温元件所在范围内介质层中的平均温度。装配式热电阻主要由接线盒、保护管、接线端子、绝缘套管和感温元件组成,并配以各种安装固定装置。WZP型鉑電阻的感溫元件是一個鉑絲繞組,雙支鉑電阻主要用于需要用二次顯示、記錄或調節儀同時檢測同一地點溫度的場合。WZC型銅電阻的感溫元件是一個銅絲繞組。
熱電阻測溫原理
受熱後的金屬絲電阻隨著溫度的變化而變化,其熱電阻值R(t)与其所处温度t的关系可表示为: R(t)=Ro(1+At+Bt2+------)按测得的电阻值查相应分度号表即可得出被测温度值t。或由显示仪表直接读出。
Industrial thermal resistance contains two categories, Pt thermal reistance and Copper thermal ressistance.
Thermal resistance is used to measure temperature on the basis of the property that substances’own resistance varies with the temperature. The part of the thermal resistance that is heated (temperataure-sensing element) is made by dual winding of fine wires around the frame made of insulation materials. When there is temperature gradient in the mediums to be measured, the measured temperature is the average temperature in the dielectric layer within the range where the temperature-sensing element is placed.Packaged thermal resistance consists of connection box, protectin tube, connection terminal, insulating sleeve and various fixed devices.WZP Pt resistance’s temperature-sensing element is a Pt wire winding. Double platinum resistance mainly is used fou such situation where it is required to use secondary display instrument, recorder and accommodometer to simultaneously detect the temperature of the same place. WZC copper resistance’s temperature-snesing element is a copper wire winding.
Temperature measurement principle of thermal resistance
The resistance of the metal wire that has been heated varies with the termperature, and the relation between the thermal resistance value and the temperature it is at can be expressed as R(t)=Ro((1+At+Bt2+------)According to the resistance value that is measured to refer to corresponding graduation mark, the temperature t that is measured can be come out, or read it directly from the indicating instrument.


欧美俱乐部派对群交留言
標題
欧美俱乐部派对群交
聯系欧美俱乐部派对群交
內容
驗證碼
點擊換一張
注:1.可以使用快捷鍵Alt+S或Ctrl+Enter發送信息!
2.如有必要,請您留下您的詳細聯系方式!

 

沪公网安备 31010102004819号