FIELD: measurement technology.
SUBSTANCE: invention relates to metrology, particularly to nondestructive inspection aids. Pig-flaw detector comprises cylindrical sealed container, support elements in form of elastic collars, sensors located outside sealed container along the perimeter and connected with electronic unit located inside sealed container. Device comprises power supply unit, orientation and navigation instruments, recorder unit, distance measurement system in form of three spring-loaded wheels located at an angle of 120° to each other. Each wheel is equipped with acoustic transducer mounted on each spring-loaded wheel axis at angle 30°–60° to flaw detector tool central axis. In sealed container there are three distance meters and adder, wherein each transducer is connected to corresponding distance meter input by cable, and each distance meter output is connected with appropriate input of adder, which output is connected to recorder. Measuring device has harmonic signal generator, Doppler frequency shift digital meter, travel speed calculator, travel distance calculator. Harmonic signal generator output is connected with converter and input of Doppler frequency shift digital meter.
EFFECT: higher accuracy of covered distance measuring.
1 cl, 6 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SYSTEM FOR DETERMINING COORDINATES OF ROUTES OF UNDERGROUND PIPES | 2010 |
|
RU2437127C1 |
| INTRATUBAL GEAR-DEFECTOSCOPE WITH ROTARY ODOMETERS | 2007 |
|
RU2334980C1 |
| PIG-DEFECTOSCOPE WITH VARIABLE SPEED OF MOVEMENT | 2008 |
|
RU2361198C1 |
| SYSTEM ESTABLISHING COORDINATES OF ROUTE OF UNDERGROUND PIPE-LINE | 2001 |
|
RU2197714C1 |
| PIG-FLAW DETECTOR WITH BACKUP FLAW SENSORS AND ODOMETRES | 2009 |
|
RU2406082C1 |
| DEVICE FOR DETERMINING DISTANCE PASSED BY IN-PIPE FLAW DETECTION IMPLEMENT WITH ODOMETERS | 2006 |
|
RU2316782C1 |
| PROCEDURE DETERMINING LOCAL DISPLACEMENT OF TRUNK PIPE- LINES | 2001 |
|
RU2206871C2 |
| INNER DEFECTOSCOPE FOR PIPELINES | 2005 |
|
RU2306479C2 |
| SYSTEM FOR FINDING COORDINATES OF TRACK AND COORDINATES OF DEFECTS OF UNDERGROUND PIPELINE | 2004 |
|
RU2261424C1 |
| IN-TUBE CONTROL APPARATUS AND METHOD FOR MOVING IT IN GAS MAIN WITH PRESET UNIFORM VELOCITY | 2010 |
|
RU2451867C2 |
