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The size of the active element of the water hearing affects many properties, including sensitivity, frequency response, directional response, dynamic range and noise equivalent pressure. The technical data sheet was prepared on the basis of iec 62127 – part 3[3], and provided detailed specifications for 0. 4 mm of the co-embracing hydrophone system。
The 0. 4 mm membrane hydrophone is a standard gold measurement device designed to provide a wide range of frequency responses for a wide range of applications, in particular diagnostic ultrasound, within the frequency range of 1. 0 mhz to 40 mhz。
The ut1604 membrane hydrophone, the uk pa ut1604 membrane hydrophone, is a gold standard hydrophone that provides excellent sensitivity, frequency response, directional response, dynamic range and noise equivalent pressure for measurements in the 1 mhz to 40 mhz range. The 0. 4 mm active area provides sufficient sensitivity to measure the signal of ≈14 kpa. If a higher sensitivity system is required, an optional signal amplifier (ma2 amplifier) can be provided for ut1604, which provides x1 or x5 gain。
Ut1604 membrane hydrophone technical parameters, uk pa ut1604 membrane hydrophone:
| Output resists: | 50 om |
| Sensor material: | Pvdf gold membrane, 16 micrometres thick on one floor |
| Installation ring size: | 100 mm diameter Ten millimeters thick |
| Membrane diameter: | 80 mm |
| Cable: | The front amplifier ends with 1. 5 m rg 174 cable and smc connector, which connects to the dc coupler |
| Active sensor diameter: | 0. 4 mm |
| Typical sensitivity: | 30-35 mv / mpa for 3 mhz |
| Sensitivity differential: | Sensitivity changes between membranes approximately +/- 3db |
| Typical frequency response: | Flat (+/- 2db): in the 1-30 mhz range, there is no need for a flat amplifier because the hydrophone meets the iec standard |
All hydrophones have frequency responses that vary with frequency. The theoretical basis for this response is well understood and described elsewhere. It shows the size of the typical cable end of the membrane hearing at 50 loads with and without a signal amplifier. It also shows a phase response for membrane hydrophones (without signal amplifiers) within 1 mhz to 40 mhz frequencies. The data shown in these maps were obtained by the national physics laboratory (npl) in london。
Pre-magnification parameters:
| Bandwidth: | 0. 1 mhz to 40 mhz (3db points) |
| Maximum output level: | 1. 5v pk – enter 50 loads of pk |
| Electricity gain: | Uniform or x 5 |
| Enter block: | 50 times |
| Output resists: | 50 times |
| Output noise level: | Usually 200 uv pk - pk (bandwidth 200 mhz) |
| Phase: | Same |
| Terminal: | Enter - smc plugin Output - bnc plugin |
| Power requirements: | Exchange 100/120/220 / 240v, 50-60hz |
| Working temperature: | 0 to 50°c |
| Dimensions: | 250 mm x 205 mm x 115 mm |
| Weight: | 2. 6 kg |