歡迎您來到上海橙文自動化機(jī)械設(shè)備有限公司網(wǎng)站！
-
聯(lián)系電話
19121157821
歡迎您來到上海橙文自動化機(jī)械設(shè)備有限公司網(wǎng)站！
19121157821
美國GRAS麥克風(fēng) - 26AA 技術(shù)資料
The output from a condenser microphone is a very high-impedance signal and is therefore very sensitive to the capacitive loads of cables. This makes it necessary to introduce a driver with high input impedance and low output impedance. Such a driver is called a preamplifier.
The frequency range of a preamplifier is determined by its electronic circuit and is typically more than 200 kHz at the high end and 1-10 Hz at the lower end. The lower end is determined by the input impedance of the preamplifier and the capacitance of the microphone. High microphone capacitance gives a low cut-off frequency.
在線咨詢
版權(quán)所有 © 2025 上海橙文自動化機(jī)械設(shè)備有限公司 sitemap.xml
備案號：滬ICP備2021008345號-1 總訪問量：361374 技術(shù)支持：化工儀器網(wǎng) 管理登陸
掃碼加微信
在線咨詢
電話咨詢
