current adj. 1.通用的,流行的。 2.現(xiàn)在的,現(xiàn)時(shí)的,當(dāng)時(shí) ...
erratic adj. 1.飄忽不定的;(行為等)古怪的,反常的;(心意、愛情等)乖僻的,反復(fù)無常的。 2.【天文學(xué)】軌道無定的;【地質(zhì)學(xué);地理學(xué)】漂移性的;【醫(yī)學(xué)】間斷無定的,不規(guī)律的;游走的。 n. 1.奇人,怪人;反復(fù)無常的人。 2.【地質(zhì)學(xué);地理學(xué)】漂礫。 an erratic star 游星。 adv. -cally ,-ism n.
According to the electromagnetic induction theory , abrupt variation of current in the transmitter loop will induce magnetic field around it , which is called the first field . in the transmission of the first field , when it meets good conductor target , induce current will be created , which is called erratic current of second current . because the second current changes with time , so it will create new magnetic field , which is called 對于接收部分,由于瞬變信號具有早期信號幅度大、衰減快,而中晚期信號幅度小、衰減慢的大動態(tài)范圍的特點(diǎn),必須設(shè)計(jì)適應(yīng)這種大動態(tài)范圍信號的采集電路;為了適應(yīng)野外工作,系統(tǒng)主控部分采用具有功耗低、高速處理的dsp ,通過高速通用串行接口usb與上位機(jī)通訊,實(shí)現(xiàn)對整個(gè)探測系統(tǒng)的控制。