Model 378A04 is a low noise microphone system designed for high sensitivity and minimal noise interference. It features a prepolarized (0V) design with a noise floor of 6.5 dB(A) (5.5 dB(A) typical) and a sensitivity of 450 mV/Pa. The microphone operates effectively within a frequency range of 10 Hz to 16 kHz (¬± 2 dB) and can handle sound pressure levels up to 130 dB re 20 OºPa. This system is suitable for various applications, including computer disk drive testing, electric vehicle sound quality assessment, environmental noise monitoring, and sound power measurements. It requires a constant current supply of 4 to 20 mA and utilizes coaxial cables, which can lead to cost savings compared to traditional models. The microphone is calibrated to standards traceable to NIST and is backed by PCB's quality commitment, which includes a five-year warranty. The operating temperature range is from -40 to +176 ¬8F (-40 to +80 ¬8C), making it suitable for demanding environments. Optional accessories are available to enhance its functionality.
MICROPHONE AND PREAMPLIFIER, LOW NOISE, 1/2" FREE-FIELD PREPOLARIZED
This model includes a 1/2" microphone cartridge, a mated preamplifier with TEDS, and system calibration.
| PCB Piezotronics, Inc. | |
|---|---|
| Product Category | Measurement Microphones |
| Product Number | 378A04 |
| Product Name | ICP Low Noise Microphone System |
| Sound Field | Free-Field |
| Dynamic Range | 100 dB re 20µPa |
| Actual Size | 0.5200 inch (13.21 mm) |
| Sensitivity | 450 mV/Pa (3.10E6 mV/psi) |
| Impedance | 50 ohms |
