[电子] 电喇叭；盆形喇叭
电喇叭
...、仪表 电工 自动化、计算机 浙江大学 主办 关键词：电喇叭;基频;频谱包络;离散傅里叶变换 [gap=1009]Key words: electric horn; basic frequency; frequency spectrum envelope; aseparated Fourier transform ...
低高音自动转换式车用电气喇叭的设计_汽车_毕业设计论文网 关键词：电气喇叭；音量；自动转换；热电式；喇叭开关 [gap=795]Keywords：electric horn, volume, automatically converted, thermoelectric, horn switch
This instrument can undertake 12v car electric horn, 24v durability test.
本仪器可进行12v、24v汽车电喇叭的耐久试验。
By single chip computer control of counter automatically generate tong 1 second stop 4 seconds of signal, make no. 5 relay output drive electric horn turns electrify.
由单片计算机控制的计数器自动产生通1秒停4秒的信号，使5路继电器输出带动电喇叭轮流通电。
The output power is measured by horn and electric probe and the frequency is measured by a wave-guide dispersion line.
实验采用喇叭天线接收和电探针恻量两朴方法时微波功率迭行了恻量，微波颂率用波导色散线法迭行恻量。