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4231 型

声校准器

HBK一级声校准器专为声级计、传声器和其他声学测量设备的现场精确声学校准而设计。

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4231 型

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4231型是一款便携式声源，用于声级计和其他声测量设备的声学校准。声校准器非常稳定，符合IEC/EN 60942（2017）1级和ANSI S1.40–2006标准。

双声压级保证即使在嘈杂环境中也能进行明确的检查，并确保传声器的线性度。为了最大程度地提高测量结果的可靠性，您可以在每次测量之前进行校准，以快速补偿本地测量条件。

  • 坚固的口袋大小设计，具有高度稳定的电平和频率
  • 校准精度 ±0.2 dB
  • 在嘈杂环境中校准时为 94 dB SPL 或 114 dB SPL
  • 静压和温度的影响极小
  • 声压与传声器等效体积无关
  • 1 kHz校准频率，可独立于加权网络进行正确校准
  • 适合HBK 1英寸传声器（使用传声器适配器的情况下，也适合1/2英寸、1/4英寸和1/8英寸传声器）
  • 从传声器上取下后自动关闭
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Use Scenarios

  • Calibration of sound level meters
  • Calibration of microphones
  • Calibration of general sound measurement instrumentation

Features

  • Robust, pocket-sized 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 network
  • Fits Brüel & Kjær 1″ microphones (1/2″, 1/4″ and 1/8″ microphones with a microphone adaptor)
  • Switches off automatically when removed from the microphone

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