Hubei Haibo Technology Co., Ltd.-leading underwater transducer company
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HF100K
HF100K
10khz-500khz High Frequency Hydrophone Acoustic Transducer for Sound Field Measurement
Size :
2. Directivity
The maximum fluctuation of horizontal directivity within the frequency band is 2.9dB.
）Frequency/Hz | M/dB | Frequency/Hz | M/dB | Frequency/Hz | M/dB | Frequency/Hz | M/dB |
20 | -184.3 | 250 | -177.4 | 1000 | -177.5 | 12500 | -177.0 |
25 | -182.5 | 315 | -178.0 | 1250 | -178.6 | 16000 | -181.6 |
31.5 | -181.2 | 400 | -177.8 | 1600 | -176.4 | 20000 | -181.9 |
40 | -180.2 | 500 | -177.6 | 2000 | -176.8 | 25000 | -181.1 |
63 | -178.8 | 630 | -177.5 | 2500 | -176.8 | 31500 | -180.3 |
80 | -178.4 | 800 | -177.4 | 3150 | -176.0 | 40000 | -181.8 |
100 | -178.1 | 1000 | -176.7 | 4000 | -176.7 | 50000 | -181.5 |
125 | -177.8 | 5000 | -175.6 | 63000 | -179.7 | ||
160 | -177.8 | 6300 | -176.3 | 80000 | -179.0 | ||
200 | -177.8 | 8000 | -176.4 | 100000 | -178.3 | ||
10000 | -178.0 |
The first and second columns are measured by the vibrating liquid column device, and the third and fourth columns are measured by the laboratory water pool free field method. The data here are measured with a preamplifier, and the preamplifier gain is 30dB.
The resonant frequency of the transducer itself is around 300kHz, and it can be used at 500kHz. Due to the deviation from the resonance point, the sensitivity will decrease. According to the sensitivity estimation at 100kHz, the sensitivity at 500kHz is about -220dB, which is suitable for environmental measurement of sound pressure 1300000Pa. If you need to purchase, it is recommended to remove the current preamplifier and minimize the receiving sensitivity of the hydrophone.
