Method for monitoring the torsion of a rotary shaft on a turbomachine of an aircraft
US-2022390328-A1 · Dec 8, 2022 · US
involving measuring phase difference of two signals or pulse trains
involving measuring phase difference of two signals or pulse trains · Cooperative Patent Classification (CPC)
Computing, optics, measurement, and control technologies.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | G01L3/109 |
| Official title | {involving measuring phase difference of two signals or pulse trains} |
| Display label | involving measuring phase difference of two signals or pulse trains |
| Total patents | 79 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 8 |
| 2017 | 7 |
| 2018 | 6 |
| 2019 | 10 |
| 2020 | 8 |
| 2021 | 7 |
| 2022 | 7 |
| 2023 | 6 |
| 2024 | 5 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Torque and angle sensing device
US-2022357223-A1 · Nov 10, 2022 · US
Device for determining an angle of rotation and/or a torque, and method for operating the device
US-11371826-B2 · Jun 28, 2022 · US
Shaft monitoring system
US-11313245-B2 · Apr 26, 2022 · US
Torque measurement using millimeter-wave metamaterial
US-11287338-B2 · Mar 29, 2022 · US
Methods and systems for measuring torque using sensor calibration
US-2021247259-A1 · Aug 12, 2021 · US
Rotation transfer apparatus provided with torque measuring device
US-10994607-B2 · May 4, 2021 · US
Method for operating a piston engine, and piston engine
US-2021101468-A1 · Apr 8, 2021 · US
Torque measurement using millimeter-wave metamaterial
US-2021102853-A1 · Apr 8, 2021 · US
Torque determination system and method
US-10955302-B2 · Mar 23, 2021 · US
Device for determining a position of a moving part and method for the operation thereof
US-2021010881-A1 · Jan 14, 2021 · US
Device for determining an angle of rotation and/or a torque, and method for operating the device
US-2021010793-A1 · Jan 14, 2021 · US
Stator holder, stator assembly, method for assembling a stator assembly, torque sensor device with a stator assembly and a stator holder, and motor vehicle with a torque sensor device
US-10871411-B2 · Dec 22, 2020 · US
Magnetizing ferromagnetic elements used in load and torque sensing devices
US-10746615-B2 · Aug 18, 2020 · US
Method of estimating the MFB50 combustion index and the instantaneous torque generated by the cylinders of an internal combustion engine
US-10739232-B2 · Aug 11, 2020 · US
Shaft monitoring system
US-2020240286-A1 · Jul 30, 2020 · US
Twisting torque sensor
US-10677670-B2 · Jun 9, 2020 · US
Rotation transfer apparatus provided with torque measuring device
US-2020171938-A1 · Jun 4, 2020 · US
Torque determination system and method
US-2020116580-A1 · Apr 16, 2020 · US
Vehicle steering apparatus
US-2020096402-A1 · Mar 26, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC G01L3/109?
- CPC G01L3/109 is the Cooperative Patent Classification code for “involving measuring phase difference of two signals or pulse trains.”
- How many patents are filed under CPC G01L3/109 (involving measuring phase difference of two signals or pulse trains)?
- Our database includes 79 publications tagged with this CPC code.
- Is patent activity under CPC G01L3/109 growing?
- Publication counts under this code: 5 in 2024 vs 5 in 2025 (latest complete years).