Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters
Abstract This paper describes the development and the verification of flight test results of a differential pressure-based, two-dimensional low-airspeed sensor designed for the navigation or disturbance detection in small helicopters. The compact and lightweight sensor is integrated with the main ro...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-04-01
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| Series: | ROBOMECH Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.1186/s40648-024-00274-2 |
| _version_ | 1797209298487476224 |
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| author | Daigo Fujiwara Takumi Tonoike |
| author_facet | Daigo Fujiwara Takumi Tonoike |
| author_sort | Daigo Fujiwara |
| collection | DOAJ |
| description | Abstract This paper describes the development and the verification of flight test results of a differential pressure-based, two-dimensional low-airspeed sensor designed for the navigation or disturbance detection in small helicopters. The compact and lightweight sensor is integrated with the main rotor of a small helicopter and comprises two probes at both arm ends, a differential pressure sensor, rotary encoder with one magnet and two sensors, microcomputer, a wireless data link, and battery. It measures the differential pressure between the total pressures captured by two total-pressure probes at each rotor angle, instead of using static pressure probes. Thus, the airspeed of the fuselage can be evaluated from the low speed. Flight tests were conducted employing a reference ultrasonic two-dimensional airspeed sensor for comparison. The results demonstrated that the magnitude error of the airspeed is less than 2 m/s for low-airspeed flights ( $$<\sim$$ < ∼ 23 m/s) when utilizing Pitot-type probes. The error in wind angle approximated 30 $$^\circ$$ ∘ , and the delay was less than or equal to that observed with a global navigation satellite system sensor. |
| first_indexed | 2024-04-24T09:52:29Z |
| format | Article |
| id | doaj.art-ae610ddb8ee84d918b5e58cefb60e14c |
| institution | Directory Open Access Journal |
| issn | 2197-4225 |
| language | English |
| last_indexed | 2024-04-24T09:52:29Z |
| publishDate | 2024-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | ROBOMECH Journal |
| spelling | doaj.art-ae610ddb8ee84d918b5e58cefb60e14c2024-04-14T11:19:48ZengSpringerOpenROBOMECH Journal2197-42252024-04-0111111510.1186/s40648-024-00274-2Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicoptersDaigo Fujiwara0Takumi Tonoike1Graduate School of Engineering, Chiba UniversityFaculty of Engineering, Chiba UniversityAbstract This paper describes the development and the verification of flight test results of a differential pressure-based, two-dimensional low-airspeed sensor designed for the navigation or disturbance detection in small helicopters. The compact and lightweight sensor is integrated with the main rotor of a small helicopter and comprises two probes at both arm ends, a differential pressure sensor, rotary encoder with one magnet and two sensors, microcomputer, a wireless data link, and battery. It measures the differential pressure between the total pressures captured by two total-pressure probes at each rotor angle, instead of using static pressure probes. Thus, the airspeed of the fuselage can be evaluated from the low speed. Flight tests were conducted employing a reference ultrasonic two-dimensional airspeed sensor for comparison. The results demonstrated that the magnitude error of the airspeed is less than 2 m/s for low-airspeed flights ( $$<\sim$$ < ∼ 23 m/s) when utilizing Pitot-type probes. The error in wind angle approximated 30 $$^\circ$$ ∘ , and the delay was less than or equal to that observed with a global navigation satellite system sensor.https://doi.org/10.1186/s40648-024-00274-2Low-airspeed sensorNavigationSmall helicopterFlight test |
| spellingShingle | Daigo Fujiwara Takumi Tonoike Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters ROBOMECH Journal Low-airspeed sensor Navigation Small helicopter Flight test |
| title | Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters |
| title_full | Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters |
| title_fullStr | Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters |
| title_full_unstemmed | Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters |
| title_short | Development and flight-test verification of two-dimensional rotational low-airspeed sensor for small helicopters |
| title_sort | development and flight test verification of two dimensional rotational low airspeed sensor for small helicopters |
| topic | Low-airspeed sensor Navigation Small helicopter Flight test |
| url | https://doi.org/10.1186/s40648-024-00274-2 |
| work_keys_str_mv | AT daigofujiwara developmentandflighttestverificationoftwodimensionalrotationallowairspeedsensorforsmallhelicopters AT takumitonoike developmentandflighttestverificationoftwodimensionalrotationallowairspeedsensorforsmallhelicopters |