通過工廠標(biāo)定和動(dòng)態(tài)后部署補(bǔ)償提高傳感器測量精度

　　就在不久前，工廠傳感器校準(zhǔn)和自我校準(zhǔn)傳感器要么不存在，要么稀有。產(chǎn)品開發(fā)的進(jìn)步改變了這一切，在傳感器成本，準(zhǔn)確性，可靠性，當(dāng)然，易用性等領(lǐng)域的設(shè)計(jì)師帶來了福音。

　　許多單獨(dú)的傳感器現(xiàn)在校準(zhǔn)之前或之后部署。預(yù)部署校準(zhǔn)的一個(gè)優(yōu)點(diǎn)是，制造商可以校準(zhǔn)多個(gè)傳感器在同一時(shí)間，而不是單獨(dú)，從而節(jié)省了大量的成本。在就地校準(zhǔn)，另一方面，發(fā)生在傳感器被安裝后，是更費(fèi)時(shí)的，并且傳感器可能暴露于環(huán)境因素，可能會影響校準(zhǔn)精度。

　　n the past， calibration efforts were frankly a nightmare for the designer. Challenges did not stop after the first calibration， as there were many obstacles to keeping sensors accurate. Either pre- or self-calibration provides：

　　Elimination of measuring uncertainty

　　Reliability of data over time

　　Elimination or a significant impact on frequency of maintenance

　　Minimal interference with sensor function

　　Cost reduction

　　Especially in the case of sensor fusion， whereby each sensor in the environment has different error characteristics， calibration as each sensor is added makes sense.