
Active EMA transducer


EMT 2705.
Active EMA transducer
The EMT2705 active EMA transducer can be connected to conventional ultrasonic flaw detectors instead of a standard piezoelectric transducer. The EMT2705 provides measurement of the thickness of metal objects, detection of delamination and other defects without preliminary cleaning of the tested surface and without the use of couplant.
The transducer is powered by a 6LR61 battery with a charge sufficient for 20 hours of continuous operation. The transducer requires no shutdown of power supply in the periods of inactivity since it turns off and on automatically depending on availability of probing pulses.
Technical specifications
The EMT2705 transducer
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Battery type6LR61 battery
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Type of excited wavesTransverse wave with radial polarization in the plane of test object surface.
Direct acoustic wave input
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Width of the main lobe on the transducer directional diagram9°
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Operating frequency of the transducer4 MHz
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Transducer aperture diameter13 mm
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Operating gap between the sensor and the tested object surfaceUp to 1 mm
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Duration of continuous work without battery recharge20 hours
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Operating temperature range-20…+50°C
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Dimensions38 x 32 x 59 mm





