A New, Adaptable, Optical High-Resolution 3-Axis Sensor
This article presents a new optical, multi-functional, high-resolution 3-axis sensor which serves to navigate and can, for example, replace standard joysticks in medical devices such as electric wheelchairs, surgical robots or medical diagnosis devices. A light source, e.g., a laser diode, is affixe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2017-01-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/17/2/254 |
| _version_ | 1811304448159383552 |
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| author | Niels Buchhold Christian Baumgartner |
| author_facet | Niels Buchhold Christian Baumgartner |
| author_sort | Niels Buchhold |
| collection | DOAJ |
| description | This article presents a new optical, multi-functional, high-resolution 3-axis sensor which serves to navigate and can, for example, replace standard joysticks in medical devices such as electric wheelchairs, surgical robots or medical diagnosis devices. A light source, e.g., a laser diode, is affixed to a movable axis and projects a random geometric shape on an image sensor (CMOS or CCD). The downstream microcontroller’s software identifies the geometric shape’s center, distortion and size, and then calculates x, y, and z coordinates, which can be processed in attached devices. Depending on the image sensor in use (e.g., 6.41 megapixels), the 3-axis sensor features a resolution of 1544 digits from right to left and 1038 digits up and down. Through interpolation, these values rise by a factor of 100. A unique feature is the exact reproducibility (deflection to coordinates) and its precise ability to return to its neutral position. Moreover, optical signal processing provides a high level of protection against electromagnetic and radio frequency interference. The sensor is adaptive and adjustable to fit a user’s range of motion (stroke and force). This recommendation aims to optimize sensor systems such as joysticks in medical devices in terms of safety, ease of use, and adaptability. |
| first_indexed | 2024-04-13T08:06:14Z |
| format | Article |
| id | doaj.art-d995051ae6fc460a9f382608ae1c1988 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T08:06:14Z |
| publishDate | 2017-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-d995051ae6fc460a9f382608ae1c19882022-12-22T02:55:08ZengMDPI AGSensors1424-82202017-01-0117225410.3390/s17020254s17020254A New, Adaptable, Optical High-Resolution 3-Axis SensorNiels Buchhold0Christian Baumgartner1Institute for Health Care Engineering, Graz University of Technology, Rechbauerstraße 12, 8010 Graz, AustriaInstitute for Health Care Engineering, Graz University of Technology, Rechbauerstraße 12, 8010 Graz, AustriaThis article presents a new optical, multi-functional, high-resolution 3-axis sensor which serves to navigate and can, for example, replace standard joysticks in medical devices such as electric wheelchairs, surgical robots or medical diagnosis devices. A light source, e.g., a laser diode, is affixed to a movable axis and projects a random geometric shape on an image sensor (CMOS or CCD). The downstream microcontroller’s software identifies the geometric shape’s center, distortion and size, and then calculates x, y, and z coordinates, which can be processed in attached devices. Depending on the image sensor in use (e.g., 6.41 megapixels), the 3-axis sensor features a resolution of 1544 digits from right to left and 1038 digits up and down. Through interpolation, these values rise by a factor of 100. A unique feature is the exact reproducibility (deflection to coordinates) and its precise ability to return to its neutral position. Moreover, optical signal processing provides a high level of protection against electromagnetic and radio frequency interference. The sensor is adaptive and adjustable to fit a user’s range of motion (stroke and force). This recommendation aims to optimize sensor systems such as joysticks in medical devices in terms of safety, ease of use, and adaptability.http://www.mdpi.com/1424-8220/17/2/254tactile sensorsassistive technologiespower wheelchairmedical systemsroboticjoystickoptical sensor |
| spellingShingle | Niels Buchhold Christian Baumgartner A New, Adaptable, Optical High-Resolution 3-Axis Sensor Sensors tactile sensors assistive technologies power wheelchair medical systems robotic joystick optical sensor |
| title | A New, Adaptable, Optical High-Resolution 3-Axis Sensor |
| title_full | A New, Adaptable, Optical High-Resolution 3-Axis Sensor |
| title_fullStr | A New, Adaptable, Optical High-Resolution 3-Axis Sensor |
| title_full_unstemmed | A New, Adaptable, Optical High-Resolution 3-Axis Sensor |
| title_short | A New, Adaptable, Optical High-Resolution 3-Axis Sensor |
| title_sort | new adaptable optical high resolution 3 axis sensor |
| topic | tactile sensors assistive technologies power wheelchair medical systems robotic joystick optical sensor |
| url | http://www.mdpi.com/1424-8220/17/2/254 |
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