标准水听器（8106）
简介：
8106型水听器具有内置的放大器，可使信号适合长电缆传输。可用于深1000米的海洋。
特点 ：
High sensitivity: -173 dB re 1V/μPa
Built-in preamplifier with provision for insert-voltage calibration
Durable construction
Equivalent noise level well below sea-state zero
Frequency ranges from 0.1Hz to 80 kHz
Individually calibrated
Flat frequency response over wide range
Omnidirectional over wide frequency range
Working pressures up to 9.8 × 106 Pa (100 atm. [1000 m])
Shielded-element construction
Highly corrosion resistant
技术参数：
带电缆电压灵敏度 | 2000 uV/Pa ± 500 uV C |
电荷灵敏度 | n/a pC/Pa |
带集成电缆电容 | n/a pF |
频率范围,参考频率250Hz | 10 Hz to 10 kHz (+0.5/−3.0 dB) / 3Hz to 80 kHz (+6/−10.0 dB) dB |
短期连续工作温度范围 | -30 to +60 C Ｃ |
最大工作静压力 | 260 dB = 9.8 × 10^6 Pa dB |
尺寸 | 182 mm (7.17 inch) 英寸 |
连带集成电缆重量 | 382 g (0.84 lb) kg |
主要用途：
Calibration reference standards
Ultrasonic measurements in liquids
Cavitation measurements
Laboratory and industrial measurements in liquids and gases
As underwater projectors (8103, 8104 and 8105)
Noise measurements in humid and polluted atmospheres