The manometric flame apparatus was developed by Rudolph Koenig in 1862热处理设备热处理设备热处理设备 , and was used throughout螺旋输送机螺旋输送机螺旋输送机
the field of acoustics prior螺旋输送机螺旋输送机螺旋输送机 to the 20th-century advancement方管方管方管 of more precise隔膜压力表隔膜压力表隔膜压力表 methods数字压力表数字压力表数字压力表 of examining the shape of sound waves, such as the phonodeik or modern oscilloscopes耐硫压力表耐硫压力表耐硫压力表
. In this device耐震压力表耐震压力表耐震压力表 , a sound wave is captured by a cone膜盒压力表膜盒压力表膜盒压力表 , which connects to one side of an enclosed capsule杭州驾校杭州驾校杭州驾校 . The capsule is bisected by a rubber diaphragmAluminum sheet;Aluminum sheet;Aluminum sheet . On the other side, flammable gas is flowing upward to supply the flameAluminum sheet;Aluminum sheet;Aluminum sheet . The rubber diaphragm acts as a modulator for the gas flow, causing the height of the flame to change with the pressure variations in the sound..