Microphone

A microphone is an acoustic-to-electric transducer or sensor that converts sound into an electrical signal. Most microphones use the change of capacitance caused by the diagrapham mechanical vibration to produce an electrical voltage signal. In a condenser microphone, the diaphragm acts as one plate of a capacitor, and the vibrations produce changes in the distance between the plates. There are two types of microphones of this kind: Pre-polarized Microphones and 200V Polarized Microphones.

Prepolarized Microphones-Free Field

Prepolarized Microphones-Pressure Field & Random Incidence

200V Polarized Microphones

The upper-limit of the dymamic range of the 200V-polarized-micrphones depends on the preamplif er supply volgate. For example, the upper-limit of the MK101 is 147 dB if the supply voltage of its preamplif er is 120V

Preamplifiers

Notice: ICCP = Integrated Constant Current Power