先生》
傳感器的靜態(tài)特性是指對靜態(tài)的輸入信號,傳感器的輸出量與輸入量之間所具有相互關(guān)系。因為這時輸入量和輸出量都和時間無關(guān),所以它們之間的關(guān)系,即傳感器的靜態(tài)特性可用一個不含時間變量的代數(shù)方程,或以輸入量作橫坐標(biāo),把與其對應(yīng)的輸出量作縱坐標(biāo)而畫出的特性曲線來描述。表征傳感器靜態(tài)特性的主要參數(shù)有:線性度、靈敏度、遲滯、重復(fù)性、漂移等。WT100-N1419 WT100-P3419 WT100-P4419 WT100-N1419 WT100-N3419 WT100-N4419 WT100-N1412 WT100-P1439 WT100-P3439 WT100-P4439 WT100-N1439 WT100-N3439 WT100-N4439 WT100-N1432 WT100-P1432 WT100-P1412 WL100-P14396 WL100-P3439 WL100-P4439 WL100-N1439 WL100-N3439 WL100-N4439 WL100-P1239 WL100-P1339 WL100-P3239 WL100-P3339 WL100-P4239 WL100-P4339 WL100-N1239 WL100-N1339 WL100-N3239 WL100-N3339 WL100-N4239 WL100-N4339 WL100-P1429 WL100-P3429 WL100-P4429 WL100-N1429 WL100-N3429 WL100-N4429 WS100-P1439 WE100-P1439/WE100-P1439 WS100-P3439/WE100-P3439 WS100-P4439/WE100-P4439 WS100-N1439/WE100-N1439 WS100-N3439/WE100-N3439 WS100-N4439/WE100-N4439 WS100-P1239/WE100-P1239 WS100-P1339/WE100-P1339 WS100-P3239/WE100-P3239 WS100-P3339/WE100-P3339 WS100-P4239/WE100-P4239 WS100-P3339/WE100-P4339 WS100-N1239/WE100-N1239 WS100-N1339/WE100-N1339 WS100-N3239/WE100-N3239 WS100-N3339
?。?)線性度:指傳感器輸出量與輸入量之間的實際關(guān)系曲線偏離擬合直線的程度。定義為在全量程范圍內(nèi)實際特性曲線與擬合直線之間的最大偏差值與滿量程輸出值之比。
(2)靈敏度:靈敏度是傳感器靜態(tài)特性的一個重要指標(biāo)。其定義為輸出量的增量與引起該增量的相應(yīng)輸入量增量之比。用S表示靈敏度。WT100-N1419 WT100-P3419 WT100-P4419 WT100-N1419 WT100-N3419 WT100-N4419 WT100-N1412 WT100-P1439 WT100-P3439 WT100-P4439 WT100-N1439 WT100-N3439 WT100-N4439 WT100-N1432 WT100-P1432 WT100-P1412 WL100-P14396 WL100-P3439 WL100-P4439 WL100-N1439 WL100-N3439 WL100-N4439 WL100-P1239 WL100-P1339 WL100-P3239 WL100-P3339 WL100-P4239 WL100-P4339 WL100-N1239 WL100-N1339 WL100-N3239 WL100-N3339 WL100-N4239 WL100-N4339 WL100-P1429 WL100-P3429 WL100-P4429 WL100-N1429 WL100-N3429 WL100-N4429 WS100-P1439 WE100-P1439/WE100-P1439 WS100-P3439/WE100-P3439 WS100-P4439/WE100-P4439 WS100-N1439/WE100-N1439 WS100-N3439/WE100-N3439 WS100-N4439/WE100-N4439 WS100-P1239/WE100-P1239 WS100-P1339/WE100-P1339 WS100-P3239/WE100-P3239 WS100-P3339/WE100-P3339 WS100-P4239/WE100-P4239 WS100-P3339/WE100-P4339 WS100-N1239/WE100-N1239 WS100-N1339/WE100-N1339 WS100-N3239/WE100-N3239 WS100-N3339WT100-N1419 WT100-P3419 WT100-P4419 WT100-N1419 WT100-N3419 WT100-N4419 WT100-N1412 WT100-P1439 WT100-P3439 WT100-P4439 WT100-N1439 WT100-N3439 WT100-N4439 WT100-N1432 WT100-P1432 WT100-P1412 WL100-P14396 WL100-P3439 WL100-P4439 WL100-N1439 WL100-N3439 WL100-N4439 WL100-P1239 WL100-P1339 WL100-P3239 WL100-P3339 WL100-P4239 WL100-P4339 WL100-N1239 WL100-N1339 WL100-N3239 WL100-N3339 WL100-N4239 WL100-N4339 WL100-P1429 WL100-P3429 WL100-P4429 WL100-N1429 WL100-N3429 WL100-N4429 WS100-P1439 WE100-P1439/WE100-P1439 WS100-P3439/WE100-P3439 WS100-P4439/WE100-P4439 WS100-N1439/WE100-N1439 WS100-N3439/WE100-N3439 WS100-N4439/WE100-N4439 WS100-P1239/WE100-P1239 WS100-P1339/WE100-P1339 WS100-P3239/WE100-P3239 WS100-P3339/WE100-P3339 WS100-P4239/WE100-P4239 WS100-P3339/WE100-P4339 WS100-N1239/WE100-N1239 WS100-N1339/WE100-N1339 WS100-N3239/WE100-N3239 WS100-N3339
?。?)遲滯:傳感器在輸入量由小到大(正行程)及輸入量由大到?。ǚ葱谐蹋┳兓陂g其輸入輸出特性曲線不重合的現(xiàn)象成為遲滯。對于同一大小的輸入信號,傳感器的正反行程輸出信號大小不相等,這個差值稱為遲滯差值。
?。?)重復(fù)性:重復(fù)性是指傳感器在輸入量按同一方向作全量程連續(xù)多次變化時,所得特性曲線不一致的程度。
(5)漂移:傳感器的漂移是指在輸入量不變的情況下,傳感器輸出量隨著時間變化,次現(xiàn)象稱為漂移。產(chǎn)生漂移的原因有兩個方面:一是傳感器自身結(jié)構(gòu)參數(shù);二是周圍環(huán)境(如溫度、濕度等)。
傳感器動態(tài)特性
所謂動態(tài)特性,是指傳感器在輸入變化時,它的輸出的特性。在實際工作中,傳感器的動態(tài)特性常用它對某些標(biāo)準(zhǔn)輸入信號的響應(yīng)來表示。這是因為傳感器對標(biāo)準(zhǔn)輸入信號的響應(yīng)容易用實驗方法求得,并且它對標(biāo)準(zhǔn)輸入信號的響應(yīng)與它對任意輸入信號的響應(yīng)之間存在一定的關(guān)系,往往知道了前者就能推定后者。最常用的標(biāo)準(zhǔn)輸入信號有階躍信號和正弦信號兩種,所以傳感器的動態(tài)特性也常用階躍響應(yīng)和頻率響應(yīng)來表示。WT100-N1419 WT100-P3419 WT100-P4419 WT100-N1419 WT100-N3419 WT100-N4419 WT100-N1412 WT100-P1439 WT100-P3439 WT100-P4439 WT100-N1439 WT100-N3439 WT100-N4439 WT100-N1432 WT100-P1432 WT100-P1412 WL100-P14396 WL100-P3439 WL100-P4439 WL100-N1439 WL100-N3439 WL100-N4439 WL100-P1239 WL100-P1339 WL100-P3239 WL100-P3339 WL100-P4239 WL100-P4339 WL100-N1239 WL100-N1339 WL100-N3239 WL100-N3339 WL100-N4239 WL100-N4339 WL100-P1429 WL100-P3429 WL100-P4429 WL100-N1429 WL100-N3429 WL100-N4429 WS100-P1439 WE100-P1439/WE100-P1439 WS100-P3439/WE100-P3439 WS100-P4439/WE100-P4439 WS100-N1439/WE100-N1439 WS100-N3439/WE100-N3439 WS100-N4439/WE100-N4439 WS100-P1239/WE100-P1239 WS100-P1339/WE100-P1339 WS100-P3239/WE100-P3239 WS100-P3339/WE100-P3339 WS100-P4239/WE100-P4239 WS100-P3339/WE100-P4339 WS100-N1239/WE100-N1239 WS100-N1339/WE100-N1339 WS100-N3239/WE100-N3239 WS100-N3339WT100-N1419 WT100-P3419 WT100-P4419 WT100-N1419 WT100-N3419 WT100-N4419 WT100-N1412 WT100-P1439 WT100-P3439 WT100-P4439 WT100-N1439 WT100-N3439 WT100-N4439 WT100-N1432 WT100-P1432 WT100-P1412 WL100-P14396 WL100-P3439 WL100-P4439 WL100-N1439 WL100-N3439 WL100-N4439 WL100-P1239 WL100-P1339 WL100-P3239 WL100-P3339 WL100-P4239 WL100-P4339 WL100-N1239 WL100-N1339 WL100-N3239 WL100-N3339 WL100-N4239 WL100-N4339 WL100-P1429 WL100-P3429 WL100-P4429 WL100-N1429 WL100-N3429 WL100-N4429 WS100-P1439 WE100-P1439/WE100-P1439 WS100-P3439/WE100-P3439 WS100-P4439/WE100-P4439 WS100-N1439/WE100-N1439 WS100-N3439/WE100-N3439 WS100-N4439/WE100-N4439 WS100-P1239/WE100-P1239 WS100-P1339/WE100-P1339 WS100-P3239/WE100-P3239 WS100-P3339/WE100-P3339 WS100-P4239/WE100-P4239 WS100-P3339/WE100-P4339 WS100-N1239/WE100-N1239 WS100-N1339/WE100-N1339 WS100-N3239/WE100-N3239 WS100-N3339
靈敏度是指傳感器在穩(wěn)態(tài)工作情況下輸出量變化△y對輸入量變化△x的比值。
它是輸出一輸入特性曲線的斜率。如果傳感器的輸出和輸入之間顯線性關(guān)系,則靈敏度S是一個常數(shù)。否則,它將隨輸入量的變化而變化。
靈敏度的量綱是輸出、輸入量的量綱之比。例如,某位移傳感器,在位移變化1mm時,輸出電壓變化為200mV,則其靈敏度應(yīng)表示為200mV/mm。
當(dāng)傳感器的輸出、輸入量的量綱相同時,靈敏度可理解為放大倍數(shù)。