{"id":11511,"date":"2025-12-12T15:59:59","date_gmt":"2025-12-12T14:59:59","guid":{"rendered":"https:\/\/soliton-gmbh.de\/?post_type=product&p=11511"},"modified":"2026-09-11T16:46:46","modified_gmt":"2026-09-11T14:46:46","slug":"hydrophone-preamplifier-and-accessories","status":"publish","type":"product","link":"https:\/\/soliton-gmbh.de\/en\/produkt\/hydrofon-vorverstaerker-und-zubehoer\/","title":{"rendered":"AH Series \u2013 Hydrophone Preamplifier and Accessories"},"content":{"rendered":"

AH Series \u2013 Preamplifiers and accessories for Onda hydrophones<\/h2>\n

The Onda AH-Series<\/strong> includes low-noise preamplifiers and accessories for reliable signal conditioning in precise hydrophone measurements. The preamplifiers are electronically and mechanically matched to Onda hydrophones, combining a wide frequency range with low self-noise and high stability.<\/p>\n

With various amplifier configurations as well as attenuators, adapters, cables, and brackets, the measurement chain can be specifically adapted to the respective ultrasonic application.<\/p>\n

Broadband signal conditioning up to 100 MHz<\/h2>\n

The preamplifiers AH-2010 and AH-2020<\/strong> offer a frequency range of 50 kHz to 100 MHz<\/strong> and are therefore suitable for broadband ultrasonic measurements.<\/p>\n

A flat frequency response and low self-noise enable reliable transmission of the signals generated by the hydrophone. The output impedance is 50 \u03a9, allowing direct connection to typical oscilloscopes and measuring instruments.<\/p>\n

AH-2010 and AH-2020<\/h2>\n

The AH-2010<\/strong> operates with a fixed voltage gain of 20 dB<\/strong> and offers a simple solution for measurement tasks with constant signal amplification requirements.<\/p>\n

The AH-2020<\/strong> expands this concept with a switchable gain of 0 or 20 dB<\/strong>. Switching can be done manually or via a TTL signal. This allows the preamplifier to be flexibly adapted to different signal levels within a measurement setup.<\/p>\n

Submersible design for compact measurement setups<\/h2>\n

The AH preamplifiers are fully submersible<\/strong> and can be connected to the hydrophone directly inside the water tank. As a result, the first amplifier stage is located close to the sensor, and only a coaxial cable needs to be routed out of the tank to the measuring device.<\/p>\n

The waterproof connection to Onda hydrophones enables compact and low-noise measurement setups, particularly in automated hydrophone scanning systems.<\/p>\n

Accessories for the complete hydrophone measurement chain<\/h2>\n

In addition to the preamplifiers, Onda offers comprehensive accessories for configuring the measurement chain. These include, among others Attenuators, adapters, coaxial cables, and hydrophone mounts<\/strong>.<\/p>\n

The ATH-2000 Attenuator<\/strong> can be used, for example, to extend the usable dynamic range of the measurement chain and prevent overloading of the preamplifier at high signal levels.<\/p>\n

calibrated measuring chain<\/h2>\n

The preamplifiers can be calibrated together with the hydrophone used. This is particularly relevant for high-frequency measurements: Onda points out that above 20 MHz a calibration of the hydrophone together with the preamplifier actually used is required<\/strong>, since cable and impedance effects are having an increasing influence on the measurement.<\/p>\n

This allows the entire signal chain comprising the hydrophone, preamplifier, and cabling to be specifically configured for quantitative ultrasonic measurements.<\/p>\n

Typical applications<\/h2>\n