標準號：BS DD IEC/TS 61094-7-2006
中文標準名稱：計量擴音器.實驗室標準擴音器的自由場與聲壓靈敏度水平差值評估
英文標準名稱：Measurement microphones - Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones
標準類型：M72
發布日期：2006/7/31 12:00:00
實施日期：2006/7/31 12:00:00
中國標準分類號：M72
國際標準分類號：17.140.50;33.160.50
適用范圍：This part of IEC 61094 - gives a polynomial function derived from a least square fit to data from several laboratories, for the differences between free-field and pressure sensitivity levels of laboratory standard microphones as specified in IEC 61094-1, - enables determination of the free-field sensitivity level of a laboratory standard microphone for zero-degrees incidence in air by adding values of these differences to the pressure sensitivity level, - gives tabulated values for the polynomial function for a range of frequency and temperature, - is applicable when a suitable free-field calibration is not available.