Coating Thickness gauge WH-81
Uploaded at: September 7th, 2021- Features
- l Thickness measurement using both Magnetic Method to measure the non-magnetic coating on a magnetic metal substrate and Eddy Current Method to measure the non-conductive coating on a
- non-magnetic metal substrate.
- l Single-point or two-point method could be used to correct probe system deviation, in order to ensure the accuracy of the device in the process of measuring.
- l Automatic identify ferrous and non-ferrous substrate quickly.
- l Power voltage indicator.
- l Speaker beep while operating.
- l Power-off automatically when idle; manually power-off available.
- l Negative display function to ensure the accuracy of zero point calibration.
- l Showing average, max, min value.
- Principle
- The device uses magnetic thickness measurement method, which non-destructively measures thickness of non-magnetic coating (such as: aluminum, chromium, copper, enamel, rubber, paint, etc.) on magnetic metal substrates (such as steel, iron, alloy and hard magnetic steel, etc.).
- Magnetic Method (F-type probe)
- When the probe contacts the cover layer, the probe and magnetic substrate forms a closed magnetic circuit; Due to the presence of non-magnetic coating, magnetic resistance changes. The thickness of the cover layer can be derived by measuring the change.
- Eddy Current Method (NF-type probe)
- When the probe contacts the cover layer, the probe and non-magnetic substrate forms Eddy Current and gives feedback to the coil inside the probe.
- The thickness of the cover layer can be derived by measuring the feedback.
1209
QTY:
Read more