Hontai Machinery and equipment (HK) Co. ltd
Hontai Machinery and equipment (HK) Co. ltd God helps those who help themselves, Creative and progressive,Being honest.
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Operating Principle
CWY-DO eddy current sensor consists of a prode and a front part, there is a coil in the prode, whitch can form a high-grequebcy oscillation circuit together with a n oscillation circuit in the front of part. When operating, an eddy current sensor generates a eddy current on the matel surface that is to be measured, as the distance between the prode and the matel surface changes, the magnrtic field on the matel surface generated by the edddy current will causea change of the impedance in the oscillation circuit that is formed by the prode and the front part, so the change of the distance between the prode and the matel surface, can be detected by measuring the impedance of the prode coil.
Technical Parameters
|
prode diameter(mm) |
Φ8mm | Φ11mm | Φ18mm | Φ25mm |
| Linear range(mm) | 2 | 4 | 8 | 10 |
| Sensitivity(V/mm) | 8 | 4 | 1.5 | 0.8 |
|
Linear error(％) |
≤ ± 1％ | ≤ ± 1％ | ≤ ± 1％ | ≤ ± 1％ |
| Installation thread(mm) | M10×1mm | M14×1.5mm | M25×2.5mm | M30×2mm |
| Prode temperature(℃) | -30℃~120℃ | |||
| Expansion cable tenperature(℃) | -30℃~120℃ | |||
| Front part temperature(℃) | -30℃~70℃ | |||
| Frequency response(KHz) | 0~10KHz | |||
| Power source | DC-24V | |||
| Maximum output voltage | Probably DC-22V | |||
| Prode cable length | 1mm | |||
| System cable length | Probe cable length+Expansion cable length=5mm±10％ or 9mm±10％ | |||