磁傳感器：越來越多的使用，尺寸的縮小

　　磁傳感器傳統(tǒng)上用于汽車、工業(yè)和消費(fèi)應(yīng)用中的速度、轉(zhuǎn)速、線性位置、線性角度和位置測(cè)量。特別是，汽車行業(yè)已成為全球市場(chǎng)領(lǐng)導(dǎo)者的磁場(chǎng)傳感器，會(huì)計(jì)，并根據(jù)一些估計(jì)，超過百分之40的總磁場(chǎng)傳感器市場(chǎng)。不斷增長的需求，在汽車上集成更多的安全功能，創(chuàng)造了磁場(chǎng)傳感器的機(jī)會(huì)，這是用在各種安全應(yīng)用，如電子穩(wěn)定控制（ESC）系統(tǒng)、轉(zhuǎn)向角傳感器、力和力矩傳感和防抱死制動(dòng)系統(tǒng)（ABS），其中。

　　還有一個(gè)在消費(fèi)電子市場(chǎng)的磁傳感器電子羅盤相關(guān)的高增長率（或e-compasses）已成為流行的主要原因是他們提高消費(fèi)電子設(shè)備的用戶的導(dǎo)航體驗(yàn)的能力。

　　據(jù)市場(chǎng)研究公司iSuppli，硅磁傳感器的全球收入將達(dá)到2017美元，已經(jīng)運(yùn)行在108億的復(fù)合年均增長率（CAGR）約百分之12。

　　Over the past two decades， the use of magnetic sensors has blossomed based on the lower cost and higher quality of Hall Effect and magnetoresistive （MR） sensors. Hall-Effect solutions are popular because they outperform potentiometers， reed sensors， and mechanical switches at higher performance levels thanks to their robustness and the elimination of mechanical wear， a common source of premature failure. MR sensors feature inherently low hysteresis and high linearity for improved measurement accuracy. （As the magnet moves closer to the magnetic-field sensor， the value becomes high enough for the circuitry and the output is turned on. As the magnet is moved away from the sensor the field is weakened and the output is turned off. Hysteresis is the differential between when the output is turned on and when the output is switched off.）