;) ;) The Type 40EN (configured as shown on the right) is a 1" pressure microphone (WS1P) ideal for measurements in couplers, e.g. the G.R.A.S. RA0075 NBS 9-A Coupler used for testing earphones according to ANSI S 3.7 – 1995.It can also be flush-mounted (configured as shown on the left) to measure sound pressures at walls and boundaries as well as be used as a laboratory-standard microphone. Download PDF Data Sheet: pd_40EN_ver_11_10_04.PDF |
Related Products: Type 40AD Adobe Acrobat reader is required for viewing data sheets. |
| Sensitivity: |
50 mV/Pa |
| Dynamic range: |
9.6 - 146 dB re. 20µPa |
| Frequency range: |
2.6 Hz - 8 kHz |
| Polarisation voltage: |
200 V |
| Outside diameter (with protection grid): |
23.77 mm |
| Length: (with and |
19.0 mm |
| without protection grid): |
17.1 mm |