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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 陳湘鳳(Shana Smith) | |
dc.contributor.author | Chia-Wei Lin | en |
dc.contributor.author | 林家暐 | zh_TW |
dc.date.accessioned | 2021-07-11T15:35:00Z | - |
dc.date.available | 2023-08-21 | |
dc.date.copyright | 2018-08-21 | |
dc.date.issued | 2018 | |
dc.date.submitted | 2018-08-15 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/78994 | - |
dc.description.abstract | 觸覺,是人類探索事物的重要感官,開發觸覺回饋裝置可以幫助使用者在虛擬環境中獲取更多有關環境的訊息,而觸覺回饋這項技術也充滿著應用領域與未來發展的可能,不僅限於娛樂方面,亦可以應用在擴充實境、虛擬實境的專業訓練上,或是提升遠端醫療手術品質。
在重現觸摸真實物體表面觸覺感受方面,先前研究大多只使用振動回饋來模擬紋理觸感,但只利用振動回饋,來區分相似紋理的物體表面十分困難。本研究開發了一種觸覺回饋裝置,將剪切力回饋和振動回饋相結合,在虛擬實境中創造與現實生活一樣的觸摸感受。剪切力回饋利用拉扯指腹皮膚對使用者產生摩擦力觸感,就如同真實在觸摸物體一樣,皮膚會因摩擦力而被拉扯。振動回饋則可以模擬現實中物體表面的紋理觸感。 本研究評估此觸覺回饋裝置新增剪力回饋的效用,並進行兩個實驗。首先是只使用振動回饋去辨識虛擬紋理,再者是同時使用剪切力回饋和振動回饋去辨識虛擬紋理。實驗結果顯示,剪切力回饋可以提昇虛擬紋理辨別的真實性和準確性。 | zh_TW |
dc.description.abstract | Nowadays, haptic feedback technology has been applied to many applications to help users acquiring more information concerning surrounding environments. In this research, a force feedback device was developed to combine shear force feedback and vibrotactile feedback to create realistic lateral stroking sensations to user’s index fingerpad in virtual reality environments. The shear force feedback simulates the friction force which stretches the skin of the fingerpad during stroking on an object’s surface, and the vibrotactile feedback simulates the surface texture information of the object in the real world. To evaluate the effectiveness of the shear force feedback on this haptic feedback device, two experiments will be carried out. First is to render only vibrotactile feedback, second is to render both shear force feedback and vibrotactile feedback. The experiments show that adding shear force feedback can increase the realism and accuracy of the virtual texture discrimination, compared with only vibrotactile feedback presented. | en |
dc.description.provenance | Made available in DSpace on 2021-07-11T15:35:00Z (GMT). No. of bitstreams: 1 ntu-107-R05522631-1.pdf: 5125278 bytes, checksum: 7dd981b0a9c4785606abb23f59f2d06b (MD5) Previous issue date: 2018 | en |
dc.description.tableofcontents | 誌謝 i
摘要 ii ABSTRACT iii 主目錄 iv 圖目錄 vii 表目錄 xii 第1章 介紹 1 1.1 研究背景 1 1.2 動機與研究目標 2 第2章 文獻回顧 3 2.1 皮膚組織中的機械受器 3 2.2 觸覺回饋裝置 5 2.2.1 馬達 5 2.2.2 壓電材料 8 2.2.3 音圈致動器 10 2.2.4 喇叭 11 2.2.5 機械式觸覺回饋裝置文獻回顧小結 12 2.3 剪力(摩擦力)回饋相關研究 13 2.3.1 指腹皮膚拉伸剛性 14 2.3.2 皮膚摩擦係數特性 14 2.3.3 摩擦力回饋研究與裝置 15 2.3.4 混合型觸覺回饋裝置(Hybrid Tactile Device) 16 2.4 紋理量測感測器 17 2.4.1 加速度感測器 17 2.4.2 PVDF壓電薄膜感測器與應變感測器 17 2.5 文獻回顧結論 18 第3章 研究問題 20 3.1 研究問題 20 3.2 方法介紹 21 3.2.1 振動回饋方法介紹 21 3.2.2 剪力回饋方法介紹 22 3.3 系統設計 23 第4章 樣本選用 26 4.1 樣本介紹 26 4.2 表面紋理振動訊號的擷取 28 4.3 摩擦係數量測 36 第5章 振動回饋裝置 40 5.1 表面紋理振動訊號處理 40 5.2 振動回饋裝置重現紋理波形能力 44 5.3 振動回饋頻率與手指移動速度關係 51 第6章 剪力(摩擦力)回饋裝置 52 6.1 剪力回饋裝置構造 52 6.2 手持握柄與壓力感測器 55 6.3 皮膚拉伸量與馬達旋轉角度之計算 58 第7章 虛擬環境互動系統 61 7.1 手部追蹤 61 7.2 虛擬環境互動介面 62 第8章 使用者測試 64 8.1 使用者測試與試前調查 64 8.2 使用者觸覺感知測試 64 8.3 虛擬觸覺回饋測試設定 65 8.4 測試結果 67 8.5 系統易用性量表分析結果 70 8.6 測試結果討論 71 8.6.1 樣本分群能力 72 8.6.2 Test 1樣本錯誤率討論 72 8.6.3 Test 2樣本錯誤率討論 74 8.6.4 表面紋理振動高低頻資訊討論 76 8.6.5 觸覺回饋裝置表現 76 8.7 使用者回饋 77 第9章 結論與未來工作 78 9.1 結論 78 9.2 未來工作 79 參考資料 80 附錄-使用者問卷 83 | |
dc.language.iso | zh-TW | |
dc.title | 剪力回饋和振動觸覺回饋對虛擬紋理的觸覺感知效應 | zh_TW |
dc.title | Tactile Perception Effects of Shear Force Feedback and Vibrotactile Feedback on Virtual Texture Representations | en |
dc.type | Thesis | |
dc.date.schoolyear | 106-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 廖先順(Hsien-Shun Liao),詹魁元(Kuei-Yuan Chan) | |
dc.subject.keyword | 觸覺回饋,剪力回饋,振動觸覺回饋,壓電致動器,伺服馬達, | zh_TW |
dc.subject.keyword | Haptics Feedback,Shear Force Feedback,Vibrotactile Feedback,Piezo Actuator,Servo Motor, | en |
dc.relation.page | 84 | |
dc.identifier.doi | 10.6342/NTU201803591 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2018-08-15 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
dc.date.embargo-lift | 2023-08-21 | - |
顯示於系所單位: | 機械工程學系 |
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