Research Article
Design of a Centrifugal Force-Based Speed Sensor for Downhole Turbodrills
Table 1
Parameters to design speed sensor for downhole turbodrill.
| Measurement range | , v: rotating speed | Measurement error | ±4% | Output signal | Digital signal output | Supply voltage | DC 5 V | Applicable pressure | 0–30 MPa | Applicable temperature | 0–125°C | Sampling frequency | 10 Hz | Data storage period | 4 days (the sensor has the function of storage) |
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