378B02美国PCB拾音器测量麦克风
378B02拾音器价格、美国PCB拾音器国外原装
1/2" prepolarized free-fieldcondenser microphone, 50 mV/Pa (+/-1.5 dB), 3.15 Hz - 20 kHz (+/-2dB) with 1/2" ICP® preamplifier (426E01) and TEDS
This model includes a 1/2"microphone cartridge, a mated preamplifier with TEDS, and systemcalibration. Click the following for individual componentinformation.
377B02
426E01
Nominal Microphone Diameter: 1/2"
Frequency Response Characteristic: Free-Field
Frequency Range: (±2dB) 3.75 to 20000 Hz (3.75 to 20000 Hz)
Inherent Noise: 15.5 dB(A) re 20 µPa
Dynamic Range: 137 dB re 20 µPa
English:SI:PERFORMANCENominal Microphone Diameter1/2"1/2"
Frequency Response Characteristic (at 0°incidence)Free-FieldFree-Field
Sensitivity50 mV/Pa50 mV/Pa[3] Sensitivity (±1.5 dB)-26 dB re1 V/Pa-26 dB re 1 V/Pa[3] Frequency Range (±2 dB)3.75 to 20000Hz3.75 to 20000 Hz
Frequency Range (±1 dB)7 to 10000 Hz7 to 10000 Hz
Lower Limiting Frequency (3 dB)1.0 to 3.0 Hz1.0 to 3.0 Hz
Inherent Noise15.5 dB(A) re 20 µPa15.5 dB(A) re 20µPa[1] Dynamic Range (3% Distortion Limit)137 dB re 20 µPa137dB re 20 µPa[1] TEDSCompliantYesYes[2] ENVIRONMENTALTemperature Range(Operating)-40 to +176 °F-40 to +80 °C
Temperature Coefficient of Sensitivity (+14 to +158°F (-10 to+70°C))0.005 dB/°F0.009 dB/°C[1][3] Static PressureCoefficient-0.013 dB/kPa-0.013 dB/kPa[1][3] HumidityCoefficient of Sensitivity (0 to , non-condensing)±0.001dB/%RH±0.001 dB/%RH[3] Influence of Axial Vibration (0.1g (1m/s²))63 dB re 20 µPa63 dB re 20 µPa[1] ELECTRICALPolarizationVoltage0 V0 V[4] Excitation Voltage20 to 30 VDC20 to 30VDC
Constant Current Excitation2 to 20 mA2 to 20 mA
Output Bias Voltage10 to 14 VDC10 to 14 VDC
Maximum Output Voltage±7 Vpk±7 Vpk
Output Impedance<50 Ohm<50 Ohm
PHYSICALHousing MaterialStainless AlloyStainless Alloy
VentingRearRear[5] Electrical ConnectorBNC JackBNC Jack
Mounting Thread (Grid)0.5 - 60 UNS0.5 - 60 UNS
Size - Diameter (with grid)0.52 in13.2 mm
Size - Diameter (without grid)0.50 in12.7 mm
Size - Height (with grid)3.62 in91.9 mm
Size - Height (without grid)3.58 in90.9 mm
Weight1.63 oz45.8 gm[1]
All specifications are at room temperature unless otherwisespecified.
Product Notes
[1] Typical.
[2] TEDS Capable Digital Communication, compliant with IEEE1451.4
[3] re 250 Hz
[4] Prepolarized
[5] Venting through Preamp.
[6] See PCB Declaration of Conformance PS064 for details.
Accessories:
SuppliedACS-63Calibration (with TEDS) of Precision CondenserMicrophones and Preamplifiers together (mated pair).(1)Optional Versions:
No optional versions
