378B02美国PCB拾音器测量麦克风

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), 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