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Low Attenuation Matching Material
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Matching layer "matches" the acoustic impedance difference between human tissue and piezoelectric material. To achieve high sensitivity and broad bandwidth, several matching layers with low attenuation are essential. Hengbang is able to provide the following matching layers:

Grade

Sound Speed (m/s)

Acoustic Impedance (MRayls)

Attenuation(@10MHz)

M1

2600

10.1

<2dB/mm

M2

3600

6.50

<2dB/mm

M3

3000

5.80

<2dB/mm

M4

2400

2.52

<0.5dB/mm

 

 

 

 

Thickness: 0.04 mm - 2 mm

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