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#f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>汕頭線性霍爾開關(guān)</p><p><span>***更新：</span>2020-05-28 10:18:20</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="a3qzv3z" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫華芯晟科技有限公司</a></p><p><span>聯(lián)系人：</span>江經(jīng)理</p><p><span>郵箱: </span>wxhxkj@126.com</p><p><span>電話: </span>15995280887</p><p><span>傳真: </span>0510_88530068</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-88530068</p><p><span>地址: </span>安鎮(zhèn)街道丹山路88號(hào)錫東創(chuàng)融大廈C座603</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="sqmdjkr" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="rfwij3d" class="box"><p><p> 如何判斷單極開關(guān)型霍爾開關(guān)是否有損壞？ </p> <p> 比如說(shuō)，單極開關(guān)霍爾開關(guān)為5V接通，汕頭線性霍爾開關(guān)，輸出端子的輸出電阻為串聯(lián)。當(dāng)磁體遠(yuǎn)離開關(guān)霍爾開關(guān)時(shí)，開關(guān)霍爾開關(guān)的輸出電壓為高電平(5V)。當(dāng)磁體接近(通常為S極)單極霍爾開關(guān)元件時(shí)，開關(guān)霍爾開關(guān)的輸出電壓較低(約0.2V)，說(shuō)明開關(guān)開型霍爾開關(guān)性能良好。如果霍爾開關(guān)的輸出電平保持不變，就無(wú)法識(shí)別磁鐵接近或離開霍爾開關(guān)，汕頭線性霍爾開關(guān)，汕頭線性霍爾開關(guān)，則霍爾開關(guān)損壞。單極霍爾開關(guān)起到的就是開關(guān)功能，通過(guò)感應(yīng)磁場(chǎng)靠近或者原理來(lái)輸出低電壓或者高電壓，如果電壓不變，這個(gè)霍爾就已經(jīng)被損壞了。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭線性霍爾開關(guān)" src="http://tyunfile.71360.com/UploadFile/wxhxskj/637082098588398437/3541246.jpg"></div><p> 1、霍爾系數(shù)RH（又稱霍爾常數(shù)）在磁場(chǎng)不太強(qiáng)時(shí)，霍爾電勢(shì)差UH與激勵(lì)電流I和磁感應(yīng)強(qiáng)度B的乘積成正比，與霍爾片的厚度δ成反比，即，式中的RH稱為霍爾系數(shù)，它表示霍爾效應(yīng)的強(qiáng)弱。另即霍爾常數(shù)等于霍爾片材料的電阻率ρ與電子遷移率μ的乘積。2、霍爾靈敏度KH（又稱霍爾乘積靈敏度）霍爾靈敏度與霍爾系數(shù)成正比而與霍爾片的厚度δ成反比，即，它通常可以表征霍爾常數(shù)。3、霍爾額定激勵(lì)電流當(dāng)霍爾元件自身溫升10℃時(shí)所流過(guò)的激勵(lì)電流稱為額定激勵(lì)電流。4、霍爾比較大允許激勵(lì)電流以霍爾元件允許比較大溫升為限制所對(duì)應(yīng)的激勵(lì)電流稱為比較大允許激勵(lì)電流。5、霍爾輸入電阻霍爾激勵(lì)電極間的電阻值稱為輸入電阻。6、霍爾輸出電阻霍爾輸出電極間的電阻值稱為輸出電阻。7、霍爾元件的電阻溫度系數(shù)在不施加磁場(chǎng)的條件下，環(huán)境溫度每變化1℃時(shí)，電阻的相對(duì)變化率，用α表示，單位為%/℃。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭線性霍爾開關(guān)" src="http://tyunfile.71360.com/UploadFile/wxhxskj/637128652179267579/4994992.jpg"></div><p> 線性霍爾開關(guān)的內(nèi)部構(gòu)造和工作原理 </p> <p> 線性型霍爾開關(guān)的內(nèi)部構(gòu)成主要包括：穩(wěn)壓電路、線性霍爾開關(guān)、運(yùn)算放大器三大部分。其輸入是磁感應(yīng)強(qiáng)度，輸出是和輸入量成正比的電壓。這類電路有很高的靈敏度和優(yōu)良的線性度，適用于各種磁場(chǎng)檢測(cè)。線性霍爾開關(guān)會(huì)根據(jù)磁場(chǎng)的強(qiáng)弱觸發(fā)出拋物線式的行程，比如電動(dòng)車的加速把就是用線性霍爾開關(guān)，可以根據(jù)磁場(chǎng)的變化使速度從0加到比較大，但是磁場(chǎng)強(qiáng)度超過(guò)某區(qū)間比較高點(diǎn)時(shí)，速度始終保持不變。線性霍爾還可用于磁場(chǎng)檢測(cè)和電流檢測(cè)。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="汕頭線性霍爾開關(guān)" src="http://tyunfile.71360.com/UploadFile/wxhxskj/637128652102050782/8871200.jpg"></div></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/67321.html</p></div></div></div></div></div><div id="fnjfbsj" class="page-right twoColRt"><div id="27aw8kp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wuqh2bs" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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