Application:

• Filling the tiny gap between the contact surface, avoid affecting the penetration of acoustic waves due to trace air.

• Reducing the acoustic emission resistance between the sensor and the detected surface, reduce the reflection loss of energy at this interface.

• Reducing the friction between the sensor and the detected surface.

Features:

• The acoustic attenuation coefficient is small, the sound transmission is good.

• The adhesion is low, easy to erase.

• Moderate moisture, not easy to dry out.

• Bright color on the appearance, high transparency, no bubbles.

• Good uniformity, no particles or impurities

• Good stability, no discoloration, do not change the consistency, no stratification, no precipitation, no deterioration, no corruption

•  No corrosion or damage to the sensor

Note:

Vaseline and butter could be selected for emergency, substitute shall not react with the tested material, but you need to consider the composition of the such as you can not use "fluorine", "chlorine" element compounds onstainless steel detection.

Lead breaking equipment

Before the  acquisition, the AE  system  needs to be  calibrated, such as channel sensitivity,  positioning  calibration, attenuation  test and so on. At present, Breaking-lead signal is commonly used to simulate AE source. We use Φ0.3mm, hardness of 2H or Φ0.5mm, hardness of HB pencil, and the length of lead  extension  is required  to be about  2.5mm,  and  the  angle between  the lead and the surface of the object is about 30°.