實驗名稱：迷(mi)走(zou)神經無線電刺激實驗研究

　　研究方向：生物醫學工程

　　實驗內容：利用功率(lv)放(fang)大器激發體外的發射電極(ji)與體內的接收電極(ji)形成電容耦合(he)效(xiao)應，實現對(dui)神(shen)經的精準刺激。

　　測試設備：ATA-1200B功率(lv)放大器(qi)(qi)(qi)、函數發生(sheng)器(qi)(qi)(qi)、信號發生(sheng)器(qi)(qi)(qi)等。

　　實驗過程：

　　圖(tu)1：迷走神(shen)經(jing)無線電刺激實驗裝置圖(tu)

　　圖2：迷(mi)走神(shen)經無(wu)線電刺激實(shi)驗示(shi)意圖

　　整個(ge)電(dian)容耦合(he)系(xi)統使(shi)用(yong)(yong)內部(bu)(bu)和外部(bu)(bu)無(wu)線(xian)(xian)供(gong)電(dian)組件(jian)構建(jian)。外部(bu)(bu)部(bu)(bu)分使(shi)用(yong)(yong)一(yi)個(ge)直徑為10毫米(mi)的(de)圓形金箔作為功(gong)(gong)率變(bian)送器電(dian)極，以(yi)及一(yi)個(ge)小的(de)矩形Mo片作為外部(bu)(bu)接(jie)地(di)電(dian)極。它們通過的(de)銅線(xian)(xian)連接(jie)到信號輸入端(duan)子(zi)上。使(shi)用(yong)(yong)ArbExpress軟(ruan)件(jian)進行波形編(bian)輯(ji)，生成一(yi)個(ge)復(fu)合(he)波形。編(bian)輯(ji)后的(de)波形導入函數發(fa)生器，連接(jie)到功(gong)(gong)率放大器（ATA-1200B，Aigtek，中國），功(gong)(gong)率放大器向(xiang)外部(bu)(bu)無(wu)線(xian)(xian)供(gong)電(dian)部(bu)(bu)分輸出信號。

　　實驗結果：

　　圖：實驗結果

　　通過(guo)利用基于靜電(dian)(dian)(dian)(dian)感應的(de)(de)(de)電(dian)(dian)(dian)(dian)容耦合(he)機(ji)制，可(ke)以生(sheng)成(cheng)輸入(ru)(ru)電(dian)(dian)(dian)(dian)壓(ya)波(bo)(bo)形(xing)(xing)(xing)精(jing)確可(ke)調(diao)的(de)(de)(de)雙(shuang)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)脈沖(chong)。輸入(ru)(ru)電(dian)(dian)(dian)(dian)壓(ya)波(bo)(bo)形(xing)(xing)(xing)由(you)梯形(xing)(xing)(xing)波(bo)(bo)疊加(jia)正弦載波(bo)(bo)構(gou)成(cheng)，經(jing)波(bo)(bo)形(xing)(xing)(xing)編輯后產(chan)生(sheng)雙(shuang)相(xiang)(xiang)(xiang)矩(ju)形(xing)(xing)(xing)脈沖(chong)（±4V，1Hz，每相(xiang)(xiang)(xiang)0.6ms），兩(liang)相(xiang)(xiang)(xiang)間隔0.15ms。當(dang)可(ke)穿戴(dai)式能(neng)量發(fa)射(she)器的(de)(de)(de)金箔電(dian)(dian)(dian)(dian)極(ji)施加(jia)電(dian)(dian)(dian)(dian)壓(ya)輸入(ru)(ru)時，BCC神經(jing)刺(ci)激(ji)器中的(de)(de)(de)鉬箔能(neng)量接收電(dian)(dian)(dian)(dian)極(ji)可(ke)高效輸出(chu)幅值約±3.38V的(de)(de)(de)電(dian)(dian)(dian)(dian)荷平衡雙(shuang)相(xiang)(xiang)(xiang)矩(ju)形(xing)(xing)(xing)電(dian)(dian)(dian)(dian)壓(ya)脈沖(chong)，對(dui)應的(de)(de)(de)輸出(chu)短路電(dian)(dian)(dian)(dian)流(liu)約250μA。短路電(dian)(dian)(dian)(dian)流(liu)和開路電(dian)(dian)(dian)(dian)壓(ya)均隨(sui)輸入(ru)(ru)電(dian)(dian)(dian)(dian)壓(ya)增加(jia)而提升(sheng)，因此(ci)通過(guo)調(diao)節(jie)金箔發(fa)射(she)電(dian)(dian)(dian)(dian)極(ji)的(de)(de)(de)輸入(ru)(ru)電(dian)(dian)(dian)(dian)壓(ya)即可(ke)獲得神經(jing)調(diao)控所(suo)需的(de)(de)(de)輸出(chu)。

　　功(gong)率放大器推薦：ATA-1200C

　　圖：ATA-1200C寬帶放大器指標參數

　　本(ben)文實(shi)驗素材由西安安泰(tai)電(dian)子(zi)整(zheng)理發布。Aigtek已經(jing)成為在(zai)業界(jie)擁有(you)廣泛產(chan)品線，且具(ju)有(you)相(xiang)(xiang)當規模的(de)儀器(qi)(qi)設備供應(ying)商(shang)，樣(yang)(yang)機都支持免費(fei)試(shi)用。西安安泰(tai)電(dian)子(zi)是(shi)專業從事功率(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)、高(gao)壓放(fang)(fang)(fang)大(da)器(qi)(qi)、功率(lv)(lv)信(xin)(xin)號(hao)源、前(qian)置微小信(xin)(xin)號(hao)放(fang)(fang)(fang)大(da)器(qi)(qi)、高(gao)精度電(dian)壓源、高(gao)精度電(dian)流源等電(dian)子(zi)測(ce)(ce)量儀器(qi)(qi)研發、生(sheng)產(chan)和銷售的(de)高(gao)科技企(qi)業。公司致力于功率(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)、功率(lv)(lv)信(xin)(xin)號(hao)源、計量校(xiao)準源等產(chan)品為核心的(de)相(xiang)(xiang)關(guan)行業測(ce)(ce)試(shi)解(jie)決方(fang)案的(de)研究，為用戶提供具(ju)有(you)競(jing)爭力的(de)測(ce)(ce)試(shi)方(fang)案，Aigtek已經(jing)成為在(zai)業界(jie)擁有(you)廣泛產(chan)品線，且具(ju)有(you)相(xiang)(xiang)當規模的(de)儀器(qi)(qi)設備供應(ying)商(shang)，樣(yang)(yang)機都支持免費(fei)試(shi)用。如(ru)想了解(jie)更多功率(lv)(lv)放(fang)(fang)(fang)大(da)器(qi)(qi)等產(chan)品，請持續關(guan)注(zhu)安泰(tai)電(dian)子(zi)官網(wang)hkdyw.cn或撥(bo)打029-88865020。