4297 型

声强校准器

声强校准器专为现场声压校准和声压-残余声强指数验证而设计

4297 型

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4297型声强校准器用于现场声压校准和声压残余强度指数验证。

该设备是一款紧凑便携式一体化声强校准器，内置声源。声反馈系统可自动调节大气压力的变化，符合IEC 61043标准。

4297型声强校准器可精确校准测量声强仪器。适用于 3599型和3654型声强探头以及4197型声强传声器对。传声器必须与¼”前置放大器一起使用。

声强校准器可用于校准声压灵敏度。为此，将两个传声器都置于校准腔中。无需拆卸探头，两个传声器都暴露在完全相同的声压（振幅和相位）下。无需气压计，因为精确的反馈系统将声压水平保持在恒定值。

提供宽带声源，用于测量声压残余声强指数谱。用于评估声强测量的准确性。

声压残余声强指数的测量和验证
251.2 Hz 的声压校准（IEC 60942 类型 1）

Code	Name
-4297--001-	Sound Intensity Calibrator
-4297---	Sound Intensity Calibrator / 声强校准器

Sound Intensity Calibrator Type 4297	Data Sheets	English
Sound Intensity Calibrator Type 4297	Manual	English

The most important and unique feature of Type 4297 is that there is no need to dismantle the sound-intensity probe for calibration.

The calibrator is optimised for use with Hand-held Sound Intensity Analyzer Type 2270 G, but it can also be used with sound intensity analysis systems.

A calibration chart is supplied that states the levels that should be detected during calibration.

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4297 型

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