Bicrystal ultrasonic probe and automatic sensitivity detection method of flaw detection system thereof
An automatic detection and ultrasonic technology, which is applied in the use of sound waves/ultrasonic waves/infrasonic waves for material analysis, measuring devices, and greenhouse gas reduction. It can solve problems such as long detection time and difficult use, and achieve efficient probe self-inspection and save time. Effect
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Embodiment 1
[0037] The working process of the sensitivity automatic detection method of the dual crystal ultrasonic probe and the flaw detection system of the present embodiment is as follows: Image 6 shown:
[0038] Step 1: Utilize artificial standard defects of standard test blocks (such as Flat-bottomed hole, the specific defect depends on the flaw detection standard), test the sensitivity of the dual-crystal ultrasonic probe and its flaw detection system, record the sensitivity amplitude (wave height amplitude) at this time as H1 (set as the reference value), record the current Probe gain value S1 (set as reference value).
[0039] Step 2: Use the emitter 6 of the dual-crystal ultrasonic probe 14 to transmit ultrasonic waves (the echo line of the echo pole 12 is disconnected at this time). Due to the existence of the organic glass of the emitter 6 itself, an interface wave (such as image 3 shown), the emitter 6 receives the interface wave through a special circuit, at this time t...
Embodiment 2
[0050] using as Figure 5 The shown emitter and echo pole are connected in parallel to form a transmit echo pole, and a method for automatic detection of the sensitivity of the dual-crystal ultrasonic probe and its flaw detection system is performed.
[0051] Step 1: Utilize artificial standard defects of standard test blocks (such as Flat-bottomed hole, the specific defect depends on the flaw detection standard), test the sensitivity of the dual-crystal ultrasonic probe and its flaw detection system, record the sensitivity amplitude (wave height amplitude) at this time as H1 (set as the reference value), record the current Probe gain value S1 (set as reference value).
[0052] Step 2: Use the transmitting echo pole of the dual-crystal ultrasonic probe 14 to transmit ultrasonic waves. Due to the existence of the organic glass of the transmitting echo pole itself, an interface wave (such as Figure 5 shown), the transmitting echo pole receives the interface wave through a sp...
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