It enables the use of long cables between hydrophone and amplifier without affecting the sensitivity of the hydrophone.
| GR 10CA | |
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| General purpose hydrophone for high frequencies | ||
| The GRAS 10CA hydrophone is a general purpose hydrophone and uniform omni-directional up to high frequencies. The hydrophone have a built in 26dB preamplifier and line driver. The 10CA features an insert calibration facility for overall calibration check. | ||
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| GR 10CC | |
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| General purpose hydrophone with high sensitivity and low noise | ||
| The GRAS 10CC hydrophone is a general purpose hydrophone and uniform omni-directional up to high frequencies. The hydrophone have a built in 10dB preamplifier and line driver, for long transmission cables. The 10CC features very high sensitivity and low self- noise , well below sea state 0. | ||
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| GR 10CD | |
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| Spherical hydrophone with uniform omnidirectional | ||
| The GRAS 10CD hydrophone is a high sensitivity and uniform omni-directional within the full frequency range 1Hz to 160 Hz. The hydrophone has ideal specifications for a wide range of underwater sound measuring applications, calibration and monitoring. | ||
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| GR 10CE | |
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| Spherical hydrophone with uniform omnidirectional for a very high frequencies | ||
| The GRAS 10CE hydrophone is a high sensitivity and uniform omni-directional within a very wide frequency range 1Hz to 470 kHz. The hydrophone has ideal specifications for making absolute underwater sound measuring and calibration. | ||
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| GR 10CF | |
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| Miniature hydrophone for primary or secondary referencies | ||
| The GRAS 10CF hydrophone is specifically designed and developed for primary and secondary reference applications for hydrophone calibration. Other applications are for general high frequency measurements. The usable frequency range is from 10Hz to 800kHz. | ||
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| GR 10CH | |
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| Miniature hydrophone as a standard reference for the high frequency range | ||
| The GRAS 10CH hydrophone is specifically designed and developed for being the standard reference for the high frequency range from 10kHz to 800kHz. Because of its size, type 10CH is an ideal hydrophone for acoustic measurements in the near field. | ||
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| GR 10CI | |
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| Standard hydrophone for reference use | ||
| The GRAS 10CI hydrophone is a high sensitivity and uniform omni-directional. The 10CI hydrophone has flat frequency receiving response over awide frequency range and a relatively high transmitting sensitivity makes it applicable within many areas of underwater acoustics. | ||
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| GR 10CT | |
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| Miniature hydrophone with high sensitivity | ||
| The GRAS 10CT hydrophone is a high sensitivity and uniform omni-directional up to high frequencies. The hydrophone can also be used in humid environments as an all weather outdoor microphone. | ||
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| GR 12CA | |
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| Voltage preamplfier for piezoelectric hydrophones | ||
| The Voltage Preamplifier Type 12CA is a 1 MHz bandwidth single-ended voltage preamplifier for use with piezoelectric hydrophones and a variety of transducers. It has excellent low-noise performance over its entire frequency range. It also has 12 selectable hi-pass filter settings and six selectable gain settings. | ||
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| GR 12CB | |
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| Charge amplfier for piezoelectric hydrophones | ||
| The Conditioning Charge Amplifier Type 12CB is a compact, low-noise amplifier for use with piezoelectric hydrophones and other similar piezoelectric transducers.
It enables the use of long cables between hydrophone and amplifier without affecting the sensitivity of the hydrophone. |
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