Common 工业 sensors 用于 温度, 压力, 流量, 与 level measurement.
Process control relies on accurate measurement of temperature, pressure, flow, and level.
| Type |
Range |
Accuracy |
| Strain gauge |
0–600 bar |
±0.25% FS |
| Piezoelectric |
0–7000 bar |
±1% |
| Capacitive |
0–400 bar |
±0.075% FS |
| Manometer (U-tube) |
0–2 bar |
±1 mm |
| Bourdon tube |
0–600 bar |
±0.5–2% |
| Type |
Application |
Accuracy |
Turndown |
| Orifice plate |
General liquids/gas |
±1–3% |
3:1 |
| Electromagnetic |
Conductive liquids |
±0.2–0.5% |
100:1 |
| Ultrasonic (transit time) |
Clean liquids |
±0.5–1% |
50:1 |
| Coriolis |
Mass flow (any fluid) |
±0.1–0.5% |
100:1 |
| Vortex |
Steam, gas, liquid |
±0.75–1.5% |
20:1 |
| Turbine |
Clean liquids |
±0.15–0.5% |
10:1 |
