Airmar Technology Corporation

Furuno Electric Company Limited

Danny J Fladung

Frederic Schoff Boericke, Ii

Kenneth D Rolt

Stephen G Boucher

Robert M Cullen

Didier Caute

William J Letendre

Bruno Marie

Eric R Kunz

Craig Smith

Eric J Beiswenger

Francis S Chase

Matthew G Kay

A multi-function sensor system comprises a dual-axis electromagnetic speed sensor and a depth transducer to enable various underwater or marine measurements to be achieved in a single unit thus reducing the space required on a vessel and the cost of having such multiple functions.

Dual-axis electromagnetic speed sensor with depth

In an embodiment, an acoustic projector includes an acoustic transmit transducer capable of producing a sound pressure radiation in response to a driver signal received from a transmit source, an acoustic receive transducer capable of producing a source level signal in response to receiving at least a portion of the sound pressure radiation, and a controller configured to monitor the source level signal and report the source level signal monitored.

Acoustic projector with source level monitoring and control

Embodiments relate to a speed sensor and a speed sensing method for measuring relative speeds of receivers with respect to particles in a fluid by detecting individual particles. A receiver generates a plurality of signals related to reflections from particles in a region being monitored. A sampling circuit samples the signals, and a processing device processes the signals according to a particle detection scheme to determine speed. Concomitant use of the same receivers allows depth measurement.

Speed sensor

Embodiments relate to monitoring the temperature of a transducer and controlling the temperature as a function of adjusting one or more characteristics of the transducer.

Method and apparatus for controlling temperature of an acoustic transducer

An example embodiment of the present invention relates to a method and corresponding apparatus that terminates circuit connectivity in a bus by determining location of an instrument on the bus, and based on coupling a terminating resistance to the instrument. The example embodiment may couple a terminating resistance with the instrument placed at the end of a bus by employing at least one male-to-male connector arranged to establish a connection between the female receptacles of the terminating resistance and the bus. In order to determine a state of termination of circuit connectivity in a bus, an example embodiment of the present invention may connect a transceiver to a terminating resistance and determine a state of termination of circuit connectivity in the bus as a function of sensing receive activity in the transceiver.

Termination resistor scheme

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Springfield, NH, United States of America

Danny J Fladung