Ad
related to: affordable sonar scan near me open today within 5 mi- HELIX® Rebate Offer
Get up to $100 back on select HELIX
Limited time rebate offer
- Fish Finders
Browse Humminbird fish finders.
Fish finders for any water & boat.
- One-Boat Network
Humminbird & Minn Kota products.
Seamlessly integrated products.
- Fish Finder Buying Guide
Find the perfect fish finder.
Browse Humminbird fish finders.
- HELIX® Rebate Offer
Search results
Results from the WOW.Com Content Network
An important general rule for side-scan sonar searches, regardless of what search pattern is used, is to orient the long dimension of the search area so that it is approximately parallel with the depth contours, which minimizes the need to make changes of the towfish altitude to maintain a reasonably consistent altitude (height above the bottom ...
The company needed someone to monitor a new kind of technology called side-scan sonar, which uses ultrasonic sound waves to create images of items on an ocean or lake bottom. "I volunteered," he said.
For photo scanning, it doesn't get better than this $200 scanner from Amazon. You can scan stacks of photos at a time without having to manually open a scanner or align pictures perfectly.
Marine Sonic HDS Sonar System; Side Scan Sonar; Use of side scan sonar to recover drowning victims Archived 2008-02-26 at the Wayback Machine; Pictures and description of USGS Benthos SIS-1000 sidescan sonar tow vehicle. NOAA's use of sidescan and multibeam sonar Archived 2001-02-08 at the Wayback Machine to make official US nautical charts
Sonar is the name given to the acoustic equivalent of radar. Pulses of sound are used to probe the sea, and the echoes are then processed to extract information about the sea, its boundaries and submerged objects. An alternative use, known as passive sonar, attempts to do the same by listening to the sounds radiated by underwater objects.
Echo sounding or depth sounding is the use of sonar for ranging, normally to determine the depth of water . It involves transmitting acoustic waves into water and recording the time interval between emission and return of a pulse; the resulting time of flight , along with knowledge of the speed of sound in water, allows determining the distance ...
Both of these techniques, when used in water, are known as sonar; passive sonar and active sonar are both widely used. Acoustic mirrors and dishes, when using microphones, are a means of passive acoustic localization, but when using speakers are a means of active localization. Typically, more than one device is used, and the location is then ...
Diver detection sonar (DDS) systems are sonar and acoustic location systems employed underwater for the detection of divers and submerged swimmer delivery vehicles (SDVs). The purpose of this type of sonar system is to provide detection, tracking and classification information on underwater threats that could endanger property and lives.
Ad
related to: affordable sonar scan near me open today within 5 mi