4231型声校准器
Sound Calibrator Type 4231 is a handy, portable sound source for calibration of sound level meters and other sound measurement equipment. The calibrator is very robust and stable, and conforms to EN/IEC 60942 Class LS and Class 1, and ANSI S1.40-1984.
| 特点
- Conforms to EN/IEC60942 (2003) Class LS and Class 1, and ANSI S1.40 – 1984
- Robust pocket-size design with highly stable level and frequency
- Calibration accuracy ±0.2 dB
- 94 dB SPL, or 114 dB SPL for calibration in noisy environments
- Extremely small influence of static pressure and temperature
- Sound pressure independent of microphone equivalent volume
- 1 kHz calibration frequency for correct calibration level independent of weighting networks
- Fits Brüel &Kjær 1″ and 1/2 ″microphones (1/4" and 1/8″microphones with adaptor)
- Switches off automatically when removed from the microphone
|
4231型声校准器是一种校准声级计和其它声学测量设备的手持便携式声源。该校准器非常坚固和稳定。
提供皮革保护套，使用校准器时无需移走它。
特点
- 符合EN/IEC60942 (2003) Class LS 和 Class 1, 以及 ANSI S1.40 – 1984标准要求
- 口袋大小的坚固设计，具有高度稳定的声压和频率
- 校准精度±0.2dB
- 在噪声环境中进行94dB声压级，或114dB声压级校准
- 静压和温度的影响极小
- 声压独立于传声器等效体积
- 1kHz 校准频率，独立于加权网络的准确的校准级
- 适合Brüel &Kjær1英寸和1 / 2英寸传声器（1 / 4英寸和1 / 8英寸传声器需适配器）
- 移走传声器时自动关闭
完整的描述和技术规格，见
产品资料
