High Frequency Non-contact Eddy Current Vibration Positioning Displacement Sensors
Eddy current sensor is a mechanical displacement or vibration amplitude can be converted into electrical signal output of non-electricity electrical measurement device.
It consists of a probe (sensor), extension cable and converter, (preamplifier), has a wide frequency response, linear measurement range, small size, strong anti-interference ability, easy to install and use, can be a long-term continuous and stable work and other advantages.
Especially with the characteristics of non-contact measurement, which will bring convenience to the dynamic measurement of rotating shafts and other rotating bodies, the probe can work in water, oil and other media.
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| System acronym | φ5 system or 5mm system | φ8 system or 8mm system | φ11 system or 11mm system | φ18 system or 18mm system | φ25 system or 25mm system |
| Model | CWY-DO-401 | CWY-DO-402 | CWY-DO-404 | CWY-DO-410-18 | CWY-DO-410-25 |
| Measuring principle | Eddy current principle | ||||
| Calibration target material | 45# steel | ||||
| Standard range | 1.5mm | 2mm | 4mm | 10mm | 10mm |
| Standard measuring range | 0.25-1.75mm | 0.5-2.5mm | 1-5mm | 0.5-10.5mm | 1-11mm |
| Maximum range can be customized | 2mm | 3mm | 6mm | 10mm | 16mm |
| Standard sensitivity | 8mV/um | 8mV/um | 4mV/um | 0.8mV/um | 0.8mV/um |
| Sensitivity error | ≤±2% | ≤±3% | ≤±1% | ||
| Sensitivity interchangeability error | ≤±5% | ≤±3% | |||
| Non-linearity | ≤±1% | ≤±1.5% | |||
| Resolution | ±1μm | ±1μm | ±2μm | ±10μm | ±10μm |
| Frequency response | DC to 10KHz (-3dB) | DC to 3KHz (-3dB) | DC to 1KHz (-3dB) | ||
| Output signal range | -2 to-14V | -2 to-18v | -2 to-18v | -2 to-10v | -2 to-10v |
| Maximum output voltage | -23v | ||||
| Output resistance | 100Ω | ||||
| System temperature drift | 土3% F.S.(-20℃ to +80℃) | ||||
| Recommended installation voltage | -10v | -6v | |||
| Preamplifier power supply | -24VDC±10% | ||||
| Maximum current consumption | ≤-20mA | ||||
| Probe resistance | 8.2±0.3Ω | 4.9±0.3Ω | 6.5±0.3Ω | 4.2±0.2Ω | 0.9±0.3Ω |
| Probe and extension cable operating temperature | -40℃ to +170℃ | ||||
| Preamplifier operating temperature | -40℃ to +80℃ | ||||
| Probe protection class | IP68 | ||||
| Preamplifier protection rating | IP40 | ||||
| Electromagnetic compatibility | EN61000-6-2、EN61000-6-4 | ||||
| Probe cover material | PPS | PEEK | |||
| Probe shield diameter | 5.5mm | 8.4mm | 11.2mm | 16.7mm | 27mm |
| Probe screw material | Stainless steel | ||||
| Probe screw thread size/customizable | M8 or M10 | M10 | M14 | M20(Customizable M18) | M30 |
| Probe cables and extension cables | Triplex coaxial cable | ||||
| Cable length | Probe cable + extension cable = 5 m or 9 m (customizable) | ||||
| Cable sheath material | FEP | ||||
| Minimum turning radius | 30mm | ||||
| Preamplifier material | ADC12 (Die casting aluminum alloy ) | ||||
| Gross system weight | 500±3% | 700±3% | |||
| Remarks | The sensitivity interchangeability error is the comparison of the standard sensitivity with any of the components when they are interchanged. | ||||