Capacitive non-contact displacement sensor
VT-5700シリーズ
This newly developed capacitive gap detector, combined with a VT series transducer, is a capacitive micro-displacement meter that non-contact, highly accurate measures the distance and displacement to a target object (conductive materials such as iron, aluminum, copper, and various metal platings). It measures the gap and displacement between the sensor end face and the target surface from the capacitance of the capacitor formed by the surface of the object being measured and the end face of the VE series sensor electrode installed opposite it. The VT-5700 series is a compact, low-cost type suitable for embedded applications, with two models: the VT-5710 with a response frequency of 4kHz and the VT-5720 with a high-speed response of 10kHz. It is highly effective for measuring and controlling shaft vibration and runout in rotating machinery such as turbines, electric motors, and compressors, as well as warping, flatness, and thickness of conductive materials such as silicon wafers and hard disks. Because it uses non-contact detection, it does not load the rotating or vibrating object being measured, nor does it change the vibration mode. Nine types of VE sensors are available, ranging from 20μm to 8mm in measurement range.
| Model name | VT-5710 | VT-5720 |
|---|---|---|
| Detection Method | Capacitive type | |
| Output | 0～5 V/0～100 % F.S. | |
| linearity | ±0.2 % F.S. / 10～100 % F.S. | ±0.25 % F.S. / 10～100 % F.S. |
| Response frequency | DC ～4 kHz | DC ～10 kHz |
| instruction section | 0~100% / 10 division LED | |
| Operating Temperature Range | 0 to +40 °C (Accuracy guaranteed range: 23 ± 2 °C) | |
| Power supply used | DC ±15 V、100 mA | |
| Outline drawings | 56 (W) × 42.4 (H) × 122 (D) mm (excluding protrusions) |
|
| Weight | Approximately 500g | |
| price | ||
| Model name | VE-5010 | VE-1020 | VE-1520 | VE-3020 | VE-8020 |
|---|---|---|---|---|---|
| Measurement range (μm) *1 | 50～500 | 100～1000 | 150～1500 | 300～3000 | 800～8000 |
| External dimension (mm) *2 | ⌀6  |
⌀8  |
⌀10  |
⌀20  |
⌀40  (Holding part ⌀20) |
| Cable length | 1.5m (integrated cable) | Sold separately: VL-1520/VL-1521 cable (1.5m) | |||
| Temperature coefficient | k1＝1.7×10-5、k2＝3.4×10-5 | ||||
| Operating temperature range *3 | 0～+80 ℃ | ||||
| price | |||||
| Model name | VE-2011 | VE-5011 | VE-1021 | VE-8021 |
|---|---|---|---|---|
| Measurement range (μm) *1 | 20～ 200 | 50～500 | 100～1000 | 800～8000 |
| Outer dimensions of measuring section (mm) *2 | ⌀3 (Holding part ⌀10)  |
⌀6 (Holding part ⌀10)  |
⌀8 (Holding part ⌀10)  |
⌀40 (Holding part ⌀10)  |
| Cable length | Sold separately: VL-1520/VL-1521 cable (1.5m) | |||
| Temperature coefficient | k1＝1.7×10-5、k2＝3.4×10-5 | |||
| Operating temperature range *3 | 0～+80 ℃ | |||
| price | ||||
| VL-1520（両端ストレートタイプコネクター） |
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| VL-1521（L型コネクター-ストレートタイプコネクター） |
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