Acoustic Calibrators

The high reliability of electronic measuring instruments such as sound level meters enables you to make accurate measurements after a simple check with one of our acoustic calibrators. In many cases this check is also carried out after each measurement to validate the results. To make sure an instrument is working correctly, more comprehensive checks are required periodically making the portable acoustic calibrators an excellent choice for making highly accurate, in-field calibration of your measuring instrument.

  • Acoustic calibrator Type 4228

    4228型

    活塞发声器

    设计用于在不同的温度、湿度和压力条件下的声场,始终可保持高准确性。

    • Standards : IEC 942 (1998) Class 1
    • Calibration pressure : 124
    • Calibration frequencies : 251.2
    • Calibration accuracy : ± 0.2
    • Transducer : 尺寸:1英寸、1/2英寸、1/4英寸和1/8英寸。
  • Acoustic calibrator - Type 4297

    4297型

    声强校准器

    专门用于现场声压校准和声压残余声强指数检验

    • Standards :
    • Calibration pressure :
    • Calibration frequencies :
    • Calibration accuracy :
    • Transducer :
  • Type 3541-A

    3541-A型

    声强校准器

    设计用于声强校准

    • Standards :
    • Calibration pressure :
    • Calibration frequencies :
    • Calibration accuracy :
    • Transducer :
  • Acoustic calibrator Type 4226

    4226型

    多功能声学校准器

    4226型多功能声学校准器可以对传声器、声级计和其他相关仪器进行自由声场模拟校准

    • Standards : IEC 942 (1988) Class 1
    • Calibration pressure : 94、104和114
    • Calibration frequencies : 从31.5Hz到16kHz的倍频程
    • Calibration accuracy : 94 ± 0.2 dB
    • Transducer : 1/2英寸
  • 4229_Boxed

    4229型

    水听器校准器

    适用于校准Brüel & Kjær的8100型、8101型、8103型和8105型水听器

    • Standards :
    • Calibration pressure : From 151 to 166 dB re 1uPa, depending on hydrophone
    • Calibration frequencies : 251.2
    • Calibration accuracy : ± 0.7
    • Transducer : Fits Types 8100, 8101, 8103, 8104, 8105 and 8106
  • Polarization Voltage Calibration Unit Type 5008

    5008型

    极化电压校准装置

    5008型是一种差分DC缓冲器,用作高阻抗传声器的极化电压缓冲器,允许使用普通的直流电压表测量传声器极化电压

    • Standards :
    • Calibration pressure :
    • Calibration frequencies :
    • Calibration accuracy :
    • Transducer :
  • Acoustic calibrator Type 4231

    4231型

    声学校准器

    声级计和其他声学测量仪器的校准

    • Standards : IEC/EN 60942 (2017) Class 1
    • Calibration pressure : 94和114 dB
    • Calibration frequencies : 1000 Hz
    • Calibration accuracy : ±0.2 dB
    • Transducer : 1英寸, 1/2英寸和1/4英寸