Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and Pressure
A sheet-type shear force sensor and a measurement system for the sensor were developed. The sensor has an original structure where a liquid electrolyte is filled in a space composed of two electrode-patterned polymer films and an elastic rubber ring. When a shear force is applied on the surface of t...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2017-07-01
|
| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/17/8/1752 |
| _version_ | 1811279997047930880 |
|---|---|
| author | Shigeru Toyama Yasuhiro Tanaka Satoshi Shirogane Takashi Nakamura Tokio Umino Ryo Uehara Takuma Okamoto Hiroshi Igarashi |
| author_facet | Shigeru Toyama Yasuhiro Tanaka Satoshi Shirogane Takashi Nakamura Tokio Umino Ryo Uehara Takuma Okamoto Hiroshi Igarashi |
| author_sort | Shigeru Toyama |
| collection | DOAJ |
| description | A sheet-type shear force sensor and a measurement system for the sensor were developed. The sensor has an original structure where a liquid electrolyte is filled in a space composed of two electrode-patterned polymer films and an elastic rubber ring. When a shear force is applied on the surface of the sensor, the two electrode-patterned films mutually move so that the distance between the internal electrodes of the sensor changes, resulting in current increase or decrease between the electrodes. Therefore, the shear force can be calculated by monitoring the current between the electrodes. Moreover, it is possible to measure two-dimensional shear force given that the sensor has multiple electrodes. The diameter and thickness of the sensor head were 10 mm and 0.7 mm, respectively. Additionally, we also developed a measurement system that drives the sensor, corrects the baseline of the raw sensor output, displays data, and stores data as a computer file. Though the raw sensor output was considerably affected by the surrounding temperature, the influence of temperature was drastically decreased by introducing a simple arithmetical calculation. Moreover, the influence of pressure simultaneously decreased after the same calculation process. A demonstrative measurement using the sensor revealed the practical usefulness for on-site monitoring. |
| first_indexed | 2024-04-13T01:05:45Z |
| format | Article |
| id | doaj.art-9d3406ba5aba42039ca9d14a23da7b57 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T01:05:45Z |
| publishDate | 2017-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9d3406ba5aba42039ca9d14a23da7b572022-12-22T03:09:22ZengMDPI AGSensors1424-82202017-07-01178175210.3390/s17081752s17081752Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and PressureShigeru Toyama0Yasuhiro Tanaka1Satoshi Shirogane2Takashi Nakamura3Tokio Umino4Ryo Uehara5Takuma Okamoto6Hiroshi Igarashi7Research Institute, National Rehabilitation Center for Persons with Disabilities, 4-1 Namiki, Tokorozawa, Saitama 359-8555, JapanResearch Institute, National Rehabilitation Center for Persons with Disabilities, 4-1 Namiki, Tokorozawa, Saitama 359-8555, JapanResearch Institute, National Rehabilitation Center for Persons with Disabilities, 4-1 Namiki, Tokorozawa, Saitama 359-8555, JapanResearch Institute, National Rehabilitation Center for Persons with Disabilities, 4-1 Namiki, Tokorozawa, Saitama 359-8555, JapanDepartment of Electronic Engineering, School of Engineering, Tokyo Denki University, Tokyo 120-8551, JapanDepartment of Electronic Engineering, School of Engineering, Tokyo Denki University, Tokyo 120-8551, JapanDepartment of Electronic Engineering, School of Engineering, Tokyo Denki University, Tokyo 120-8551, JapanDepartment of Electronic Engineering, School of Engineering, Tokyo Denki University, Tokyo 120-8551, JapanA sheet-type shear force sensor and a measurement system for the sensor were developed. The sensor has an original structure where a liquid electrolyte is filled in a space composed of two electrode-patterned polymer films and an elastic rubber ring. When a shear force is applied on the surface of the sensor, the two electrode-patterned films mutually move so that the distance between the internal electrodes of the sensor changes, resulting in current increase or decrease between the electrodes. Therefore, the shear force can be calculated by monitoring the current between the electrodes. Moreover, it is possible to measure two-dimensional shear force given that the sensor has multiple electrodes. The diameter and thickness of the sensor head were 10 mm and 0.7 mm, respectively. Additionally, we also developed a measurement system that drives the sensor, corrects the baseline of the raw sensor output, displays data, and stores data as a computer file. Though the raw sensor output was considerably affected by the surrounding temperature, the influence of temperature was drastically decreased by introducing a simple arithmetical calculation. Moreover, the influence of pressure simultaneously decreased after the same calculation process. A demonstrative measurement using the sensor revealed the practical usefulness for on-site monitoring.https://www.mdpi.com/1424-8220/17/8/1752shear force sensorliquid electrolyteflexible electrode filmmobile sensor systemcompensation calculationwheelchairprosthetics |
| spellingShingle | Shigeru Toyama Yasuhiro Tanaka Satoshi Shirogane Takashi Nakamura Tokio Umino Ryo Uehara Takuma Okamoto Hiroshi Igarashi Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and Pressure Sensors shear force sensor liquid electrolyte flexible electrode film mobile sensor system compensation calculation wheelchair prosthetics |
| title | Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and Pressure |
| title_full | Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and Pressure |
| title_fullStr | Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and Pressure |
| title_full_unstemmed | Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and Pressure |
| title_short | Development of Wearable Sheet-Type Shear Force Sensor and Measurement System that is Insusceptible to Temperature and Pressure |
| title_sort | development of wearable sheet type shear force sensor and measurement system that is insusceptible to temperature and pressure |
| topic | shear force sensor liquid electrolyte flexible electrode film mobile sensor system compensation calculation wheelchair prosthetics |
| url | https://www.mdpi.com/1424-8220/17/8/1752 |
| work_keys_str_mv | AT shigerutoyama developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure AT yasuhirotanaka developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure AT satoshishirogane developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure AT takashinakamura developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure AT tokioumino developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure AT ryouehara developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure AT takumaokamoto developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure AT hiroshiigarashi developmentofwearablesheettypeshearforcesensorandmeasurementsystemthatisinsusceptibletotemperatureandpressure |