實驗名稱：迷走神經無(wu)線電刺(ci)激實驗研(yan)究(jiu)

　　研究方向：生物醫學工程

　　實驗內容：利(li)用功率放大器激發體外的發射(she)電(dian)極與體內的接收電(dian)極形成電(dian)容耦合效應(ying)，實(shi)現對神經的精準(zhun)刺激。

　　測試設備：ATA-1200B功率放(fang)大器、函數(shu)發(fa)生(sheng)器、信(xin)號發(fa)生(sheng)器等。

　　實驗過程：

　　圖(tu)1：迷走神經無線電刺激實驗裝置圖(tu)

　　圖2：迷走神經無線(xian)電(dian)刺(ci)激實驗示意(yi)圖

　　整個電(dian)容耦合系統使(shi)用內部和外部無(wu)線供(gong)電(dian)組件(jian)構建。外部部分使(shi)用一(yi)個直徑為10毫米的(de)圓形金(jin)箔作為功(gong)率(lv)變送器電(dian)極，以及一(yi)個小的(de)矩形Mo片(pian)作為外部接(jie)(jie)地(di)電(dian)極。它們通過的(de)銅線連接(jie)(jie)到(dao)信(xin)號輸入端(duan)子上。使(shi)用ArbExpress軟件(jian)進(jin)行波(bo)形編輯(ji)，生成(cheng)一(yi)個復合波(bo)形。編輯(ji)后的(de)波(bo)形導入函(han)數發生器，連接(jie)(jie)到(dao)功(gong)率(lv)放(fang)大(da)器（ATA-1200B，Aigtek，中國），功(gong)率(lv)放(fang)大(da)器向外部無(wu)線供(gong)電(dian)部分輸出信(xin)號。

　　實驗結果：

　　圖：實驗結果

　　通(tong)(tong)過(guo)利用基于靜電(dian)(dian)(dian)感應的(de)電(dian)(dian)(dian)容耦(ou)合機(ji)制，可(ke)以生成輸(shu)(shu)入(ru)電(dian)(dian)(dian)壓波形(xing)(xing)(xing)(xing)(xing)精確可(ke)調(diao)(diao)的(de)雙相(xiang)電(dian)(dian)(dian)脈沖。輸(shu)(shu)入(ru)電(dian)(dian)(dian)壓波形(xing)(xing)(xing)(xing)(xing)由(you)梯形(xing)(xing)(xing)(xing)(xing)波疊加(jia)正弦載波構成，經波形(xing)(xing)(xing)(xing)(xing)編輯后產生雙相(xiang)矩形(xing)(xing)(xing)(xing)(xing)脈沖（±4V，1Hz，每(mei)相(xiang)0.6ms），兩相(xiang)間隔0.15ms。當(dang)可(ke)穿戴式能(neng)量發射器的(de)金(jin)箔(bo)電(dian)(dian)(dian)極(ji)(ji)施加(jia)電(dian)(dian)(dian)壓輸(shu)(shu)入(ru)時，BCC神(shen)經刺(ci)激(ji)器中的(de)鉬(mu)箔(bo)能(neng)量接收電(dian)(dian)(dian)極(ji)(ji)可(ke)高(gao)效輸(shu)(shu)出幅值約±3.38V的(de)電(dian)(dian)(dian)荷平衡雙相(xiang)矩形(xing)(xing)(xing)(xing)(xing)電(dian)(dian)(dian)壓脈沖，對應的(de)輸(shu)(shu)出短路電(dian)(dian)(dian)流(liu)約250μA。短路電(dian)(dian)(dian)流(liu)和開路電(dian)(dian)(dian)壓均(jun)隨輸(shu)(shu)入(ru)電(dian)(dian)(dian)壓增加(jia)而提(ti)升，因(yin)此通(tong)(tong)過(guo)調(diao)(diao)節金(jin)箔(bo)發射電(dian)(dian)(dian)極(ji)(ji)的(de)輸(shu)(shu)入(ru)電(dian)(dian)(dian)壓即可(ke)獲得(de)神(shen)經調(diao)(diao)控所需的(de)輸(shu)(shu)出。

　　功率放大器推薦：ATA-1200C

　　圖：ATA-1200C寬帶放大器指標參數

　　本文(wen)實驗素材由(you)西(xi)安安泰電(dian)(dian)子(zi)(zi)整理發(fa)布。Aigtek已經成(cheng)為在(zai)業界擁有(you)廣泛產(chan)品(pin)線，且具(ju)有(you)相當(dang)規(gui)模(mo)的儀器設備(bei)供應(ying)商，樣機(ji)都(dou)支(zhi)持免(mian)費試用(yong)。西(xi)安安泰電(dian)(dian)子(zi)(zi)是專業從事功(gong)(gong)(gong)率(lv)(lv)放(fang)大(da)(da)器、高壓放(fang)大(da)(da)器、功(gong)(gong)(gong)率(lv)(lv)信(xin)號(hao)(hao)源(yuan)(yuan)、前置微小信(xin)號(hao)(hao)放(fang)大(da)(da)器、高精(jing)度電(dian)(dian)壓源(yuan)(yuan)、高精(jing)度電(dian)(dian)流源(yuan)(yuan)等電(dian)(dian)子(zi)(zi)測量儀器研發(fa)、生(sheng)產(chan)和銷售的高科(ke)技企業。公司致力(li)于功(gong)(gong)(gong)率(lv)(lv)放(fang)大(da)(da)器、功(gong)(gong)(gong)率(lv)(lv)信(xin)號(hao)(hao)源(yuan)(yuan)、計(ji)量校準源(yuan)(yuan)等產(chan)品(pin)為核心(xin)的相關(guan)(guan)行業測試解(jie)決方案的研究，為用(yong)戶提供具(ju)有(you)競爭力(li)的測試方案，Aigtek已經成(cheng)為在(zai)業界擁有(you)廣泛產(chan)品(pin)線，且具(ju)有(you)相當(dang)規(gui)模(mo)的儀器設備(bei)供應(ying)商，樣機(ji)都(dou)支(zhi)持免(mian)費試用(yong)。如想了解(jie)更(geng)多功(gong)(gong)(gong)率(lv)(lv)放(fang)大(da)(da)器等產(chan)品(pin)，請持續關(guan)(guan)注安泰電(dian)(dian)子(zi)(zi)官網(wang)hkdyw.cn或撥打029-88865020。