SU513310A1 - Ultrasonic flaw detector - Google Patents

Description

(54) ULTRASOUND DEFECT TESTS

Ultrasonic flaw detector works with food in a way.

The electric signal of the generator 1 is a non-transducer by a converter 2 in akuo ychebkiy ipye, passing through iDEL 12 12, and a transmutable ayra-hey. 3. Then the aneKtpa ecKM signal sings) tt & euuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuyyuyu «eurtomeeteptomek.

On the static trigger output 0, a common input, plug-in to the device 5., occurs a 13 rectangular impulse with 4adlHyftJft is twice lower than the frequency of ei-14 14 people with a transducer and a sensor t of 15 dianyc ka. the rtMoy / ifeca fronts with trigger 6. Mch i b & M 8 matches HMttyittjiji 13 with tpHrt epa 6 and pulses 18 of given duration A from sensor {. 7. If the duration of the pulses T with tpHfrep 6 is less than the duration of ut, j and Julia sensor 7, that cooTBeTCTByet is higher than 1cS and the signal coming from HB {CWD of the Strength unit 4 is greater than a few Signal 16, which triggers the recording signal generator 9, the shape, amplitude and duration of which are determined by the information carrier in the recorder 10.

The shaper 9 also performs the return of the sensor 7 to its initial position.

If the signal arriving from a tfeemn block is less than a predetermined level, then the duration of the pulses 14 of the trigger 6 is greater than the duration of the ut-, the pulses 17 of the sensor 7. At the same time, the output of the block 8 does not occur, the former 9

It also runs on the defectogram on the Wits skip in the record.

Thus, in the detector flaw detector, the signal is carried out by comparing the element of the frequency of the frequency corresponding to the signal level with the & eat {bm time interval, which increases the discrimination accuracy and the like, before each act. consequently, the accuracy of the defect display on the Y-pattern.

In the predicted flaw detector, ttepexoAHbte excluded the processes of setting the operating mode of the signal level to frequency converter to determine the accuracy of the signal level discrimination, which is not i LET to improve the pair measurement accuracy. Shtrsh defects shown on A & feature frame,

Invention formula

Ultrasonic flaw detector, containing reHepaTqp, connected to izpuchasch1M amuytmichesky transducer, receiving dM yu chesky transducer, connected W sh t by successively connected receiving block | in order to improve the measurement accuracy, it is equipped with a static trigger with a common input, connections m, - with the output of the level converter sk.nala to frequency, sensor of adjustable time intervals, connecting um to the output m trigger and the formation of bodies of recording signals, and a coincidence unit, one input of which is connected to the trigger output, the other to the time slot sensor, and the output connected to the recording signal former.