Microphone
Classification：
SenseDisc
Product Model：
S0034
Grade：
Elementary school, junior high school, Senior high school
Function Description：
Microphone collects sound signal using to electret microphone. The microphone consists of dust gauze, shell, vibrating diaphragm, spacer, back plate, copper ring, cavity and PCB. The microphone is formed to a capacitor with vibrating diaphragm, spacer and back plate. There are charge on the plastic vibrating diaphragm. Once it is affected by sound, the diaphragm starts vibrating so that distance between diaphragm and back plate changes. The difference Δd is generated. According to C=εS/4πkd, the capacitance will be changed by ΔC. According to C=Q/V (Q is electric charge quantity), due to the change of ΔC, Q is constant so that voltage will change by ΔV. The sound signal is transfer to electric signal. Sensor circuit transfer the electric signal into analog signal under standard range.
Share products:
7F, No.1 Building, Tianan Cyber Park, No.36 Yongfeng Road, Qinhuai District, Nanjing, China. (R&D centre)
No.306 Wenchang Road, Yongyang Street, Lishui Disctric, Nanjing, China. (Manufacturing base)
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