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7542376 |
Vessel-mountable sonar systems
A vessel-mountable integrated sonar system is provided. The vessel-mountable integrated sonar system comprises at least one imaging sonar data acquisition device and at least one processing system...
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6926671 |
Ultrasonic imaging apparatus and method
An ultrasonic imaging apparatus and method combines dynamically focused reception and coded transmission/reception technologies by inexpensive circuitry. A receive aperture is divided into smaller...
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6870793 |
Automatically tracking scanning sonar
An automatically tracking scanning sonar alternately performs horizontal scanning and vertical scanning and a target lock processor calculates a predicted position of a target based on an echo...
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6671228 |
Sonar tracking array
A sonar array comprising a support structure, an acoustic projector attached to the support structure, and a plurality of directional hydrophones attached to the support structure and arranged so...
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6226227 |
Manual scan imaging sonar
A manual scan sonar integrates multiple technologies into a compact and low cost single beam sonar having the ability to generate wide sector views comparable to that of much larger and more...
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6157293 |
Device for detecting the intrusion of a body in a predetermined space
The device comprises a transmitter (7) transmitting ultrasound into a predetermined space (5), a sensor (8) which senses the echoes from the transmission by the transmitter into the space in order...
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5966169 |
Three dimensional beamformed television
The system provides three-dimensional real time imaging, with features that serve to control acoustic effects that cause interference. Systems are disclosed for medical imaging and other...
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5953287 |
Sludge topography measurement in oil tanks
A method of and apparatus for determining the topography and/or volume of a layer of sludge on the bottom of an oil tank, for example, in which a sonar head having a velocimeter is immersed in the...
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5577006 |
Adaptive acoustic signal target detection system
An acoustic ranging and detection system comprises an acoustic transmitter for producing an acoustic ranging signal and first and second acoustic receivers positioned on either side of the acoustic...
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5549002 |
Method for detecting and characterizing flaws in engineering materials
A method for detecting and characterizing flaws in an object having an arbitrary-shaped geometry. The present invention uses a synthetic aperture focusing technique (SAFT) which enables maximum...
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5526433 |
Tracking platform system
A self-steering platform system incorporates at least three and preferably four microphones circumferentially spaced about the platform which is mounted for movement preferably around two mutually...
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5515340 |
Ultrasonic sensor scanning apparatus and method for detecting objects by use of the scanning apparatus
An ultrasonic scanning device includes an ultrasonic sensor mounted for rotation. The sensor can be automatically oriented in a predetermined reference position from a random position. During a...
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5460045 |
Ultrasonic probes for inspection of reactor pressure vessel bottom head and weld buildup thereon
An improved method for repair of incore-instrumentation-housing and related defects in a nuclear reactor system involves three stages, each with ultrasonically assisted inspections. In the first...
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5412618 |
Spotlight-mode synthetic aperture side-look sonar
A side-look sonar system and method apply a spotlight-mode synthetic aperture technique to provide increased image resolution and a long receive aperture. A control circuit activates mechanical...
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5323362 |
Sonar system employing synthetic orthogonal array
A synthetic Mill's Cross scanner array is provided for a sonographic system. The array includes orthogonal lines for which projector and hydrophone are respectively provided. During a scan of a...
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5297109 |
Piling and pier inspection apparatus and method
The objects of the present invention are achieved by a method and means for temporarily suspending sonar beam transducer means on a dihedral wing body at a first underwater location within sonar...
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5260912 |
Side-looking fish finder
A side-looking fish finding apparatus transmits a sonar pulse approximately horizontally into a body of water, and then monitors echoes from the pulse. The time interval between successive sonar...
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5235558 |
Choke point bistatic sonar
A sonar system for use in a water body includes a projector on the bottom of a water body for generating and transmitting a direct beam of acoustic energy. A receiving array is immersed in the...
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5235559 |
Method and apparatus for determining bedload thickness employing standing wave measurements
The invention generally pertains to apparatus for determining bedload thickness of a bedload on a bed surface in an aquatic medium. An acoustic source is operative when energized for producing...
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5229933 |
2-D phased array ultrasound imaging system with distributed phasing
A two-dimensional phased array ultrasound imaging system distributes signal delays between its probe and its base section. The transducer elements are grouped and relative delays between elements...
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5228008 |
Holder for rotatable sensor array
A holder for holding a plurality of position sensors, such as ultrasonic position sensors, in a ganged array for pivotal movement about a vertical pivot axis passing through the holder. The holder...
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5182732 |
Reversible fish finder apparatus
A reversible drive for a fish-finder apparatus includes a motor, a drive gear driven by the motor, a driven gear driven by the drive gear and a fish-finder drive shaft driven by the driven gear....
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5173882 |
Sonar system for and method of arctic seafloor reconnaissance
A sonar system for arctic seafloor reconnaissance has a pair of transducers affixed to a holder so as to form a transducer array. A vertically extended tube assembly rotatably supported by a tripod...
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5163026 |
Method for increasing the image rate of a sonar and sonar for the implementation of this method
The invention relates to a simple, cheap sonar system with high image rate, for the detection of objects and the imaging of sea bottoms. It consists in transmitting n uncorrelated successive codes...
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5148700 |
Apparatus and method for locating sediment in a container
Improved apparatus and method are provided for locating and mapping sediment in a container, which is at least partially filled with liquid. A sonar transducer is mounted with the container for...
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5079752 |
Platform mounted ultrasonic sweep detection system
Ultrasonic energy is emitted within a detection envelope from a single transducer and echoes of targets therein are received during scanning displacement of the transducer through a predetermined...
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5033029 |
Interlaced sonar system
A sonar system which insonifies a target area in a plurality of distinct and separated insonified regions as a result of an acoustic transmission and thereafter fills in the blank regions upon...
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5025425 |
Sonic detection and tracking system
Two submerged rotatable sets of transmitting and receiving transducers are ongitudinally spaced along the side of a river to establish intersecting lateral sonar beams obliquely oriented at...
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4980872 |
Transducer position control
Universal directional orientation of the vibratory sensing face of a transducer is achieved by mounting the transducer on horizontal axles journaled by surrounding sleeves mounted on the depending...
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4976149 |
Ultrasonic distance sensor and monitoring of surface profile utilizing ultrasonic distance sensor
An ultrasonic distance sensor generates ultrasonic waves and transmit same toward a target surface, the distance to which is to be measured, through a predetermined path. The sensor is also...
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4939697 |
Variable focusing sonar
The received signal from an acoustic echo detection and ranging system is mpared with internally generated signals indicating the focus of a variable focus transducer. Logic circuits in the signal...
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4935906 |
Scanning sonar system
Images of underwater features, animate and inanimate, are produced from substantial distances in any direction around a boat, using small and easily mountable sonar devices, including three sonar...
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4924449 |
Acoustic sub-surface interrogator
A positionable transducer array on a stationary platform proximate a layered site on the seabed coherently insonifies locations at the site with a signal having a selected power, resultant center...
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4912686 |
Sensor apparatus
A sensor apparatus for detecting sludge in a tank e.g. an oil storage tank, wherein sonar tarnsmission and reception is effected by a transducer (29) whose acoustic center is coincident with the...
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4897824 |
Sonar systems
A sonar system for a water craft including a transducer assembly mounted to the hull of the water craft, and a control circuit for applying signals to the transducer for forward transmission by the...
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4868798 |
Contact ultrasonic transducer head
A contact ultrasonic transducer head assembly. A stationary housing is adapted to be fitted to a remotely operated manipulator. A movable assembly slidably received by the stationary housing has a...
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4862152 |
Sonic positioning device
A three-dimensional ultrasonic position control device suitable for controlling computer displays or robot movements is disclosed. More specifically, signals from an ultrasonic transmitter are...
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4841489 |
Method of imaging an object by ultrasonic or electromagnetic waves
A method of imaging an object by the ultrasonic or electromagnetic wave by mechanically or electronically scanning the ultrasonic or electromagnetic wave transmitting/receiving system to transmit...
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4815048 |
Dual axis transducer
A dual axis transducer assembly comprises a transducer (20), a yoke (24) which mounts the transducer for oscillating movement about a substantially horizontal axis. A turntable (28) mounts the yoke...
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4807165 |
Method for the determination and display of signal arrival time, intensity and direction
A method for the determination and display of signal arrival time, intensity, and direction for use with time domain measurements. The method may be implemented by either hardware or by software...
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4805155 |
Speed control circuit for mechanical scan ultrasonic imaging apparatus
In an ultrasonic imaging apparatus of the type having a plurality of selectable modes of operation, a motor-driven electroacoustic transducer is steered in a sector field in a predetermined...
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4789970 |
Method and device for positioning an element using ultrasonic sensors
The present invention provides a method and device for determining the positioning of an element or target using at least one acoustic emitting-receiving sensor. In this method only the signal...
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4779241 |
Acoustic lens arrangement
An acoustic lens arrangement having at least one transducer for the generation and/or for the reception of a plane acoustic wavefield. The arrangement includes a focusing surface for focusing the...
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4779239 |
Sonar transducer system for image formation
A sonar transducer comprising a stack of an even number of antennae with identical linear networks. The stack is driven by a reciprocating rotary movement of low amplitude, with the antennae...
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4672589 |
Underwater detection system
An underwater detection system which has a transmitting and receiving unit for radiating an ultrasonic wave pulse into the water within a narrow sector and receiving echo signals by a plurality of...
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4644509 |
Ultrasonic audience measurement system and method
Method and apparatus for identifying a number of people in a monitored area wherein a first reflected ultrasonic wave map of the monitored area is collected that includes background objects. A...
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4628851 |
Vibration isolation module
A vibration isolation module (30) includes termination members (34, 36) at each end to which are connected electrical wires or cable (39), and a braided rope of aramid fiber (32). A plurality of...
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4618948 |
Apparatus for detecting obstructions behind vehicle
An apparatus for detecting obstructions behind a vehicle, employing ultrasonic waves is disclosed. The apparatus comprises an ultrasonic transmitting and receiving device disposed on the rear...
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4610007 |
Method and apparatus for surveying positions of mooring lines
Method and apparatus for surveying positions of mooring lines extending between a moored structure and anchors in the water bottom comprising a rotatable submarine transducer assembly including...
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4586195 |
Microphone range finder
A microphone ranging system for providing improved reproduced speech by compensating for the position of a speaker relative to the microphone system. An omnidirectional microphone system with a...
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