JP7408870B2 - グリップ・セキュリティを測定する摩擦ベースの触覚センサ - Google Patents
グリップ・セキュリティを測定する摩擦ベースの触覚センサ Download PDFInfo
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
- G01L5/226—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to manipulators, e.g. the force due to gripping
- G01L5/228—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to manipulators, e.g. the force due to gripping using tactile array force sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
- B25J13/08—Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
- B25J13/081—Touching devices, e.g. pressure-sensitive
- B25J13/082—Grasping-force detectors
- B25J13/083—Grasping-force detectors fitted with slippage detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J19/00—Accessories fitted to manipulators, e.g. for monitoring, for viewing; Safety devices combined with or specially adapted for use in connection with manipulators
- B25J19/0095—Means or methods for testing manipulators
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/25—Measuring force or stress, in general using wave or particle radiation, e.g. X-rays, microwaves, neutrons
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/015—Protective gloves
- A41D19/01529—Protective gloves with thermal or fire protection
- A41D19/01541—Cooled gloves
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
- A61B5/224—Measuring muscular strength
- A61B5/225—Measuring muscular strength of the fingers, e.g. by monitoring hand-grip force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J13/00—Controls for manipulators
- B25J13/08—Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
- B25J13/081—Touching devices, e.g. pressure-sensitive
- B25J13/084—Tactile sensors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/22—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers
- G01L5/226—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the force applied to control members, e.g. control members of vehicles, triggers to manipulators, e.g. the force due to gripping
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
- G01L5/166—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force using photoelectric means
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Human Computer Interaction (AREA)
- Pathology (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Automation & Control Theory (AREA)
- Heart & Thoracic Surgery (AREA)
- Physical Education & Sports Medicine (AREA)
- Biophysics (AREA)
- Biomedical Technology (AREA)
- Textile Engineering (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Description
(i)物体をグリップすることを試みる前にその物体を探査する必要と、
(ii)静止摩擦係数の測定値を入手する前の操作中のグロス・スリップ(gros slip)の発生と、
(iii)変化する摩擦係数の場合の、静止摩擦係数の連続的測定値を提供することの不可能性と、
(iv)法線力および接線力を継続的に監視する必要と
という制限のうちの1つまたは複数の問題を有する。
いくつかの図示の実施形態では、突出部または柱に対する力の推定を、次のように実行することができる。材料が、フックの法則に従って線形弾性として振る舞うと仮定する。正味の法線力FNが、各柱に働く法線力の和であることに留意されたい。
FNC=kΔlC、 (1a)
FNO=kΔlO=k(ΔlC-d)=FNC-kd、かつ (1b)
FN=FNC+8FNO=9kΔlC-8kd (1c)
ただし、kは、柱の弾性材料のばね定数である。したがって、
FTC=FTO、かつ (3a)
FT=FTC+8FTO=9FTO (3b)
ここで、FTCは、中央の柱の接線力であり、FTOは、外側柱のうちの1つの接線力で ある。
、中央柱より小さい正味の接線力で滑る。外側柱は、
FTO>μsFNO (4)
の時に滑り始める。これが発生するのは、正味の接線力が
の時である。
因して、正味の接線力に対して制限された量の接線力だけ貢献しており、
FTO=μkFNO (6a)
中央柱は、
FTC>μsFNC (6b)
の時に滑り始める。これは、正味の接線力が、
の時に発生する。
に単純化することができる。
が与えられ、これは、kおよびdが既知であり、正味の接線力および法線力が、外側柱の
滑りの瞬間に測定される(それぞれ、
および
)場合に、中央柱が滑るときの正味の接線力対法線力の比率を予測することが可能である、すなわち、外側柱が滑る時を感知し、その時の力を調べることによって、静止摩擦係数
を推定することが可能性があることを意味する。
法線力(N)のそれぞれのステージ位置(mm)を使用して、センサ柱のばね定数kを計算した。ばね定数kは、最良あてはめの線の勾配を柱の本数で除算したものすなわち、k=1.174N/mmである。
P Q
R S
と示される象限パターンに配置された4つのフォトダイオードがある場合に、それらが感知する光の強度は、中央のプロットを入手するために次のように前処理され得る。
Z=P+Q+R+S (すなわち、すべての和)
X=[(P+R)-(Q+S)]/Z (すなわち、左引く右を正規化したもの)
Y=[(P+Q)-(R+S)]/Z (すなわち、上引く下を正規化したもの)
Claims (10)
- 摩擦を推定するシステムであって、
基底面から延びる複数の突出部を含み、第1の接触面領域および第2の接触面領域を有する接触面であって、前記第1の接触面領域は、前記第2の接触面領域より少なく滑りに抵抗するように構成される接触面と、
前記複数の突出部の少なくとも3つの3次元での変位を検出し、前記第1の接触面領域が滑る瞬間に前記複数の突出部の少なくとも3つに印加される3次元力を測定するように構成されたセンサ配置とを備えるシステム。 - 前記複数の突出部の前記変位が、グリップされる物体の並進または回転の結果である、請求項1に記載のシステム。
- 前記複数の突出部の少なくとも3つに印加されるトルクを推定するように構成される、請求項1に記載のシステム。
- 滑り事象に関連する前記複数の突出部の少なくとも3つの振動を感知するように構成される、請求項1に記載のシステム。
- 前記複数の突出部の少なくとも3つの振動を異なる表面テクスチャにより感知するように構成される、請求項1に記載のシステム。
- 前記複数の突出部は、変形可能である、請求項1に記載のシステム。
- 前記複数の突出部は、前記基底面から先端まで延びる細長いシャフトであり、
前記接触面が、前記先端またはその近傍に設けられる、請求項1に記載のシステム。 - 前記複数の突出部が、アレイを形成するように位置決めされる、請求項1に記載のシステム。
- 前記複数の突出部が、お互いと独立に移動するように構成される、請求項1に記載のシステム。
- 前記複数の突出部は、一定のグリップ圧力の下で、前記第1の接触面領域内の突出部への法線力が、前記第2の接触面領域内の突出部への法線力より小さくなるように構成される、請求項1に記載のシステム。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2017903239 | 2017-08-14 | ||
AU2017903239A AU2017903239A0 (en) | 2017-08-14 | Friction-based tactile sensor for measuring grip security | |
AU2018901816 | 2018-05-24 | ||
AU2018901816A AU2018901816A0 (en) | 2018-05-24 | Friction-based tactile sensor for measuring grip security | |
JP2020508499A JP7267994B2 (ja) | 2017-08-14 | 2018-08-14 | グリップ・セキュリティを測定する摩擦ベースの触覚センサ |
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JP2020508499A Division JP7267994B2 (ja) | 2017-08-14 | 2018-08-14 | グリップ・セキュリティを測定する摩擦ベースの触覚センサ |
Publications (2)
Publication Number | Publication Date |
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JP2023093635A JP2023093635A (ja) | 2023-07-04 |
JP7408870B2 true JP7408870B2 (ja) | 2024-01-05 |
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JP2023069381A Active JP7408870B2 (ja) | 2017-08-14 | 2023-04-20 | グリップ・セキュリティを測定する摩擦ベースの触覚センサ |
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Country Status (8)
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US (2) | US11945098B2 (ja) |
EP (2) | EP4242615A3 (ja) |
JP (2) | JP7267994B2 (ja) |
KR (2) | KR102595832B1 (ja) |
CN (2) | CN111093914B (ja) |
AU (2) | AU2018317495B2 (ja) |
ES (1) | ES2962547T3 (ja) |
WO (1) | WO2019033159A1 (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2018317495B2 (en) | 2017-08-14 | 2023-10-05 | Contactile Pty Ltd | Friction-based tactile sensor for measuring grip security |
WO2019244710A1 (ja) * | 2018-06-22 | 2019-12-26 | ソニー株式会社 | 滑り検出装置 |
US11472040B2 (en) * | 2019-10-10 | 2022-10-18 | Mitsubishi Electric Research Laboratories, Inc. | Tactile sensor |
US11548165B2 (en) * | 2019-10-10 | 2023-01-10 | Mitsubishi Electric Research Laboratories, Inc. | Elastomeric tactile sensor |
US11408788B2 (en) * | 2020-03-31 | 2022-08-09 | Toyota Research Institute, Inc. | Variable geometry and stiffness control for fluid filled sensor |
CN111805562B (zh) * | 2020-06-05 | 2023-03-10 | 清华大学 | 触觉传感器及机器人 |
JP7411285B2 (ja) * | 2020-10-16 | 2024-01-11 | 国立研究開発法人産業技術総合研究所 | 荷重に応じて発光する発光構造体、それを用いた荷重測定装置および、荷重分布測定方法 |
GB202207451D0 (en) | 2022-05-20 | 2022-07-06 | Univ College Dublin Nat Univ Ireland Dublin | Optical sensor device |
CN115183726B (zh) * | 2022-09-13 | 2022-11-22 | 太原理工大学 | 木构件间相对转角及水平摩擦滑移量的测量装置及方法 |
EP4344836A1 (en) * | 2022-09-30 | 2024-04-03 | Melexis Technologies SA | Slip detection for robotic grip |
US12103182B1 (en) | 2023-10-20 | 2024-10-01 | Tacta Systems Inc. | Tactile robotic training platform |
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