KA Probes

Option

Choose an optionKA 2-1 10KHz - 500KHzKA 2-1 10KHz - 800KHzKA 2-2 100KHz - 3MHzKA 2-2 100KHz - 5MHzKA 2-4KA 82-5KA-2 H-132.54.1KA-25 H-1464KA-31 H-139.02.1Clear

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Description

Product Information

KA probe types are absolute pencil probes

The name “absolute sensor“ is derived from the fact that the absolute value of the voltage induced in the test coil is measured by KA probe. The signal for a defect-free test object or for an empty coil is overlaid by the signal of a defect or a change to the properties of the test body. This means that the test signal is not only influenced by defects, but also by the material properties
of the test piece and the environmental conditions. For example, if the sensor heats up during operation, its electrical resistance will change and the absolute value of the induced voltage begins to “drift“. This is the great disadvantage of this sensor system. To suppress interferences of this kind or similar, an additional compensation coil is often incorporated in the circuit. This must be arranged so that there is no interaction with the test body, but environmental influences are effectively suppressed.

KA Probe Types

KA Probe Type (KA-)	Description
25 H-1464	Absolute probe to detect cracks on train wheels
2 H-132.54.1	Absolute probe, 10 kHz – 500 kHz Pencil housing, Ferrite core Ø 1.0 mm active area 1,5mm
2-1 10KHz – 500KHz	absolute probe, ferrite core Ø 1,0 mm pencil probe frequency: 10 kHz – 800 kHz; active area: approx. 1,5 mm
2-1 10KHz – 800KHz	Absolute probe, 10 kHz – 100 kHz Pencil housing
82-5	Absolute probe, 500 kHz – 3 MHz Pencil housing
2-4	Absolute probe Shaft flexible 170mm long, Pivoting tip
H-139.02.1	Absolut-Sonde, 100 kHz – 3 MHz Stiftgehäuse, Wirkbreite 1,0mm
2-2 100KHz – 3MHz	Absolute probe, 100 kHz – 3 MHz Pencil housing, active area 1,0mm
2-2 100KHz – 5MHz	Absolute probe to detect cracks on train wheels

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Additional Information.

Additional information

Manufacturer	Rohmann
Option	KA 2-1 10KHz – 500KHz, KA 2-1 10KHz – 800KHz, KA 2-2 100KHz – 3MHz, KA 2-2 100KHz – 5MHz, KA 2-4, KA 82-5, KA-2 H-132.54.1, KA-25 H-1464, KA-31 H-139.02.1