Measurement microphone 4942

prepolarized1/2"random incidence

Product overview
The Type 4942 is a prepolarized ½-inch diffuse-field microphone cartridge designed for precision random-incidence and noise measurements. It provides a diffuse-field response and is specified to meet relevant ANSI acoustic standards.

Applications

• Random-incidence acoustic measurements
• Environmental and industrial noise measurements
• Diffuse-field measurement scenarios where sound arrives from multiple directions

Key features

• Prepolarized design — no external polarization voltage required
• ½-inch cartridge size suitable for laboratory and field measurements
• Diffuse-field response optimized for random-incidence conditions
• Designed and specified to comply with relevant ANSI standards

Description
The compact Type 4942 cartridge simplifies setup and integration into standard microphone housings and preamplifiers. Its prepolarized configuration reduces cabling and power requirements while delivering consistent diffuse-field response for accurate noise and random-incidence measurements.

Technical specifications

• Model: Type 4942
• Microphone type: Prepolarized ½-inch diffuse-field cartridge
• Main use: Random-incidence and noise measurements
• Polarization: Prepolarized (internal)
• Standards: Complies with ANSI acoustic measurement requirements