Performance assessment of a new variable stiffness probing system for micro-CMMs
When designing micro-scale tactile probes, a design trade-off must be made between the stiffness and flexibility of the probing element. The probe must be flexible enough to ensure sensitive parts are not damaged during contact, but it must be stiff enough to overcome attractive surface forces, ensu...
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| Format: | Article |
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MDPI
2016
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| Online Access: | https://eprints.nottingham.ac.uk/32749/ |
| _version_ | 1848794481911922688 |
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| author | Alblahaihid, Khalid Kinnell, Peter Lawes, Simon Desgaches, Dorian Leach, Richard K. |
| author_facet | Alblahaihid, Khalid Kinnell, Peter Lawes, Simon Desgaches, Dorian Leach, Richard K. |
| author_sort | Alblahaihid, Khalid |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | When designing micro-scale tactile probes, a design trade-off must be made between the stiffness and flexibility of the probing element. The probe must be flexible enough to ensure sensitive parts are not damaged during contact, but it must be stiff enough to overcome attractive surface forces, ensure it is not excessively fragile, easily damaged or sensitive to inertial loads. To address the need for a probing element that is both flexible and stiff, a novel micro-scale tactile probe has been designed and tested that makes use of an active suspension structure. The suspension structure is used to modulate the probe stiffness as required to ensure optimal stiffness conditions for each phase of the measurement process. In this paper, a novel control system is presented that monitors and controls stiffness, allowing two probe stiffness values (“stiff” and “flexible”) to be defined and switched between. During switching, the stylus tip undergoes a displacement of approximately 18 _m, however, the control system is able ensure a consistent flexible mode tip deflection to within 12 nm in the vertical axis. The overall uncertainty for three-dimensional displacement measurements using the probing system is estimated to be 58 nm, which demonstrates the potential of this innovative variable stiffness micro-scale probe system. |
| first_indexed | 2025-11-14T19:16:53Z |
| format | Article |
| id | nottingham-32749 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:16:53Z |
| publishDate | 2016 |
| publisher | MDPI |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-327492020-05-04T17:47:15Z https://eprints.nottingham.ac.uk/32749/ Performance assessment of a new variable stiffness probing system for micro-CMMs Alblahaihid, Khalid Kinnell, Peter Lawes, Simon Desgaches, Dorian Leach, Richard K. When designing micro-scale tactile probes, a design trade-off must be made between the stiffness and flexibility of the probing element. The probe must be flexible enough to ensure sensitive parts are not damaged during contact, but it must be stiff enough to overcome attractive surface forces, ensure it is not excessively fragile, easily damaged or sensitive to inertial loads. To address the need for a probing element that is both flexible and stiff, a novel micro-scale tactile probe has been designed and tested that makes use of an active suspension structure. The suspension structure is used to modulate the probe stiffness as required to ensure optimal stiffness conditions for each phase of the measurement process. In this paper, a novel control system is presented that monitors and controls stiffness, allowing two probe stiffness values (“stiff” and “flexible”) to be defined and switched between. During switching, the stylus tip undergoes a displacement of approximately 18 _m, however, the control system is able ensure a consistent flexible mode tip deflection to within 12 nm in the vertical axis. The overall uncertainty for three-dimensional displacement measurements using the probing system is estimated to be 58 nm, which demonstrates the potential of this innovative variable stiffness micro-scale probe system. MDPI 2016-04-08 Article PeerReviewed Alblahaihid, Khalid, Kinnell, Peter, Lawes, Simon, Desgaches, Dorian and Leach, Richard K. (2016) Performance assessment of a new variable stiffness probing system for micro-CMMs. Sensors, 16 (4). 492/1-492/18. ISSN 1424-8220 Probe sensor Stiffness modulation Micro-CMM http://www.mdpi.com/1424-8220/16/4/492 doi:10.3390/s16040492 doi:10.3390/s16040492 |
| spellingShingle | Probe sensor Stiffness modulation Micro-CMM Alblahaihid, Khalid Kinnell, Peter Lawes, Simon Desgaches, Dorian Leach, Richard K. Performance assessment of a new variable stiffness probing system for micro-CMMs |
| title | Performance assessment of a new variable stiffness probing system for micro-CMMs |
| title_full | Performance assessment of a new variable stiffness probing system for micro-CMMs |
| title_fullStr | Performance assessment of a new variable stiffness probing system for micro-CMMs |
| title_full_unstemmed | Performance assessment of a new variable stiffness probing system for micro-CMMs |
| title_short | Performance assessment of a new variable stiffness probing system for micro-CMMs |
| title_sort | performance assessment of a new variable stiffness probing system for micro-cmms |
| topic | Probe sensor Stiffness modulation Micro-CMM |
| url | https://eprints.nottingham.ac.uk/32749/ https://eprints.nottingham.ac.uk/32749/ https://eprints.nottingham.ac.uk/32749/ |