GB/T 20441.3-2010 Active
GB/T 20441.3-2010 Electroacoustics—Measurement microphone—Part 3:Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique
Abstract
This part of GB/T 20441 specifies the primary method for determining the sensitivity in free-field conditions, in order to establish a basis for reproducible and accurate sound pressure measurements under free-field conditions.
This part is applicable to laboratory standard microphones that meet the requirements of GB/T 20441.1. The principle of the calibration method is applicable to other types of microphones. In particular, when a specified adapter is installed, microphones that meet the requirements of GB/T 20441.1 can remove the adapter and be calibrated in accordance with this part.
This part is suitable for highly experienced technicians and laboratories with special requirements.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 20441.3-2010 |
| CCS | Acoustic metrology |
| ICS | Electroacoustics |
| Implement Date | 2011-05-01 |