CN102288126B - Non-contact finger deformation measuring device and measuring method - Google Patents

Non-contact finger deformation measuring device and measuring method Download PDF

Info

Publication number
CN102288126B
CN102288126B CN 201110213061 CN201110213061A CN102288126B CN 102288126 B CN102288126 B CN 102288126B CN 201110213061 CN201110213061 CN 201110213061 CN 201110213061 A CN201110213061 A CN 201110213061A CN 102288126 B CN102288126 B CN 102288126B
Authority
CN
China
Prior art keywords
finger
direction
nozzle
horizontal shifting
displacement sensor
Prior art date
Application number
CN 201110213061
Other languages
Chinese (zh)
Other versions
CN102288126A (en
Inventor
孙中圣
李小宁
滕燕
Original Assignee
南京理工大学
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 南京理工大学 filed Critical 南京理工大学
Priority to CN 201110213061 priority Critical patent/CN102288126B/en
Publication of CN102288126A publication Critical patent/CN102288126A/en
Application granted granted Critical
Publication of CN102288126B publication Critical patent/CN102288126B/en

Links

Abstract

The invention discloses a non-contact finger deformation measuring device and a non-contact finger deformation measuring method. The device comprises a horizontal movable platform part, a height adjustment part and a pressure control part, wherein the horizontal movable platform part comprises X and Y direction stepping motors, X and Y direction movable platforms, a sensor bracket and a laser displacement sensor; the height adjustment part comprises a base, a ruler, a sliding block, a locking nut, a transparent organic glass plate and a screw; and the pressure control part comprises a pressure meter, a two-position electromagnetic valve and a proportional pressure valve. By the non-contact measuring method, the dynamic change process of finger deformation and the profile of the finger deformation are measured, and the distance between a finger and a nozzle and pressure in the nozzle can be conveniently adjusted to change the deformation of the finger.

Description

Non-contact type finger deformation measuring device and measuring method

Technical field

The present invention relates to a kind of fingers deformed measurement mechanism, particularly a kind of non-contact type finger deformation measuring device and measuring method.

Background technology

When the people touched object and obtains tactile data, finger skin can stress deformation.Behind the finger skin stress deformation, can affect the mechanical sense neuronal cell of finger interior, thereby produce tactilely-perceptible, that is to say that the tactile data that obtains when touching object is relevant with the force and deformation of finger skin.Power suffered during the finger touch object is generally distribution pressure, and owing to present measurement means and precision for distribution pressure all is restricted, therefore when the research tactile sense reproduction, study relation between tactilely-perceptible and the haptic stimulus and the degree true to nature of tactile sense reproduction with the distortion on finger skin surface.The distortion on finger skin surface is included in deformable contour and the change procedure under dynamic load under the static load.

Document 1:Vincent Levesque. Measurement of Skin Deformation Using Fingerprint Feature Tracking and document 2:Kiran Dandekar. Role of Mechanics in Tactile Sensing of Shape have proposed respectively the distortion of measuring finger skin based on the method that fingerprint characteristic and gauge point utilize image to process.Adopt method that image processes when calculating fingers deformed, complex disposal process, and profile that can only the static measurement fingers deformed can not be measured the dynamic changing process of fingers deformed.

Summary of the invention

The object of the present invention is to provide a kind of device and the measuring method that can measure fingers deformed, this device has the characteristics of non-cpntact measurement, do not affect the distortion of finger in the measuring process, not only can measure the deformable contour of finger, and can measure the dynamic changing process of fingers deformed.

Realize the technical solution of the object of the invention: a kind of non-contact type finger deformation measuring device, comprise the horizontal shifting platform part, highly regulate part and pressure control section, described horizontal shifting platform partly comprises the X-direction horizontal shifting platform, the Y-direction horizontal shifting platform, sensor stand and laser displacement sensor, this Y-direction horizontal shifting platform is positioned on the X-direction horizontal shifting platform, and vertical with the X-direction horizontal shifting platform, this X-direction horizontal shifting platform comprises the X-direction stepper motor, the X-direction mobile platform, the X-direction stepper motor connects the X-direction mobile platform by shaft coupling, the Y-direction horizontal shifting platform comprises the Y-direction stepper motor, the Y-direction mobile platform, the Y-direction stepper motor connects the Y-direction mobile platform by shaft coupling, described sensor stand is fixed on the Y-direction mobile platform, and laser displacement sensor is fixed on the sensor stand; Described height adjusting portion is divided and is comprised pedestal, scale, slide block, set nut, transparent plexiglass plate and screw, the center section of described pedestal upper surface is that the inclined-plane is used for placing finger, with center section join about two end surfaces be the plane, scale is vertically mounted on the right-hand member plane of pedestal, slide block moves along the scale Z-direction, and can be locked on the scale by set nut, transparent plexiglass plate is connected with slide block by screw, this transparent plexiglass plate is vertical with scale, and parallel with pedestal; Described pressure control section comprises source of the gas, proportional pressure valve, two solenoid valves and tensimeter, described source of the gas, proportional pressure valve, two solenoid valves are connected tracheae with tensimeter and connect, this tracheae also is connected with air intake opening on the transparent plexiglass plate, this air intake opening communicates with nozzle, this nozzle is positioned at the top of finger, and the industrial computer that matlab6.5/simulink software is housed is connected with tensimeter with laser displacement sensor; The pedestal of highly regulating part is parallel with the X-direction mobile platform of horizontal shifting platform part, the laser beam that laser displacement sensor sends passes transparent plexiglass plate and nozzle arrives finger surface, measure the distortion of finger, change the acting force that acts on the finger by the distance of regulating between proportional pressure valve pressure and nozzle and the finger, thereby change the distortion of finger.

The present invention compared with prior art, its remarkable advantage: (1) measurement mechanism is simple in structure, and the fingers deformed measuring process is simply rapid; (2) measurement mechanism adopts laser displacement sensor to measure the distortion of finger, belongs to non-cpntact measurement, and measuring process can not affect the distortion of finger; (3) can measure easily the dynamic changing process of finger certain point deformation under dynamic pressure and under constant pressure the profile of fingers deformed.

The present invention is described in further detail below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the measuring principle figure of measurement mechanism of the present invention.

Fig. 2 is the overall construction drawing of measurement mechanism of the present invention.

Fig. 3 is the structural drawing of transparent plexiglass plate in the measurement mechanism of the present invention.

Fig. 4 is the dynamic changing curve that the present invention measures fingers deformed.

Fig. 5 is the contour curve that the present invention measures fingers deformed.

Embodiment

In conjunction with Fig. 1 and Fig. 2, non-contact type finger deformation measuring device of the present invention comprises the horizontal shifting platform part, highly regulate part and pressure control section, described horizontal shifting platform partly comprises the X-direction horizontal shifting platform, the Y-direction horizontal shifting platform, sensor stand 8 and laser displacement sensor 9, this Y-direction horizontal shifting platform is positioned on the X-direction horizontal shifting platform, and vertical with the X-direction horizontal shifting platform, this X-direction horizontal shifting platform comprises X-direction stepper motor 4, X-direction mobile platform 5, X-direction stepper motor 4 connects X-direction mobile platform 5 by shaft coupling, the Y-direction horizontal shifting platform comprises Y-direction stepper motor 6, Y-direction mobile platform 7, Y-direction stepper motor 6 connects Y-direction mobile platform 7 by shaft coupling, described sensor stand 8 is fixed on the Y-direction mobile platform 7, and laser displacement sensor 9 is fixed on the sensor stand 8; Described height adjusting portion is divided and is comprised that pedestal 1, scale 10, slide block 11, set nut 12, transparent plexiglass plate 3 and screw 13, the center section of described pedestal 1 upper surface are that the inclined-plane is used for placing finger 2, and the pitch angle on this inclined-plane is the 20-30 degree.With center section join about two end surfaces be the plane, scale 10 is vertically mounted on the right-hand member plane of pedestal 1, slide block 11 is along scale 10Z to movement, and can be locked on the scale 10 by set nut 12, transparent plexiglass plate 3 is connected with slide block 11 by screw 13, this transparent plexiglass plate 3 is vertical with scale 10, and parallel with pedestal 1; Described pressure control section comprises source of the gas 17, proportional pressure valve 16, two solenoid valves 15 and tensimeter 14, described source of the gas 17, proportional pressure valve 16, two solenoid valves 15 are connected with tensimeter and are connected by tracheae, this tracheae also is connected with air intake opening 20 on the transparent plexiglass plate 3, this air intake opening 20 communicates with nozzle 21, this nozzle 21 is positioned at finger 2 top (nozzle 21 and finger 2 surfaces can keep the distance of 1-4mm), and the industrial computer that matlab6.5/simulink software is housed and laser displacement sensor 9 are connected with tensimeter and are connected;

Described height is regulated the front that part is positioned at the horizontal shifting platform part, and the pedestal 1 of highly regulating part is parallel with the X-direction mobile platform 5 of horizontal shifting platform part, the laser beam that laser displacement sensor 9 sends passes transparent plexiglass plate 3 and nozzle 21 arrives finger 2 surfaces, the distortion of measuring finger.Change the acting force that acts on the finger by the distance of regulating between proportional pressure valve 16 pressure and nozzle 21 and the finger 2, thereby change the distortion of finger.

Make the laser beam of laser displacement sensor 9 vertical with transparent plexiglass plate 3.By control X-direction stepper motor 4, Y-direction stepper motor 6 Y-direction mobile platform 7, X-direction mobile platform 5 all around directions are moved, thereby the laser beam of adjusting laser displacement sensor 9 sees through the position of transparent plexiglass plate 3, and the laser beam that laser displacement sensor 9 sends sees through transparent plexiglass plate 3 can be measured finger behind the finger surface reflection deflection.Described slide block 11 is regulated the nozzle 21 that is positioned on the transparent plexiglass plate 3 and the distance of pointing 2 surfaces along scale 10Z to movement, after the distance between nozzle 21 and the finger 2 is determined, can be locked on the scale 10 by set nut 12.Described pressure control section provides pressurized air for the fingers deformed contour outline measuring set, and regulates compressed-air actuated pressure.

In conjunction with Fig. 3, the transparent plexiglass plate 3 of non-contact type finger deformation measuring device of the present invention is comprised of transparent upper plate 18 and lower plate 19, air intake opening 20 on the described lower plate 19 is perpendicular to side 22, nozzle 21 on the described lower plate 19 is through hole, bottom surface 23 perpendicular to lower plate 19, and communicate with air intake opening 20, described upper plate 18 is connected with lower plate by glass cement connection sealing, can guarantee that pressurized air is by nozzle 21 ejections, being applied to finger surface makes finger produce distortion, the laser beam that described laser displacement sensor 9 sends passes upper plate 18 and nozzle 21 arrives finger 2 surfaces, the distortion of measuring finger.

Utilize above-mentioned non-contact type finger deformation measuring device can realize the finger feature measurement of two kinds of forms: the one, measure the dynamic changing process of pointing certain point deformation under dynamic pressure; The 2nd, measure the profile of pointing fingers deformed under certain constant pressure.In conjunction with Fig. 1, Fig. 2 and Fig. 3, non-contact type finger deformable contour measuring method of the present invention, concrete steps are as follows:

1, the dynamic change of finger certain point deformation under dynamic pressure is measured, and comprises the steps:

Step 1: finger 2 is placed on the inclined-plane of pedestal 1, and by double faced adhesive tape finger 2 nails, one side and inclined-plane is fixed, and prevents from pointing 2 the loosening measurement result that affects; Adjust respectively X-direction mobile platform 5 and Y-direction mobile platform 7, make the laser beam of laser displacement sensor 9 be positioned at the center of the nozzle 21 on the transparent plexiglass plate 3, and make laser beam pass nozzle 21 reach the finger 2 surfaces; Adjust the position of slide block 11, transparent plexiglass plate 3 contact with finger 2, at this moment nozzle 21 is 0 with distance between the finger 2, and the slide block 11 that then moves up makes nozzle 21 and points distance between 2 between 1 ~ 4mm, uses set nut 12 that slide block 11 is locked.

Step 2: the pressure of resize ratio pressure valve 16 is between 0.05MPa ~ 0.5MPa, open industrial computer and utilize the displacement signal of matlab6.5/simulink software collection laser displacement sensor 9 and the pressure signal of tensimeter 14, then open two solenoid valves 15, pressurized air is ejected into finger surface by nozzle 21 and makes fingers deformed, gathers the dynamic process of fingers deformed.If shut electromagnetic valve 15 also can obtain the rejuvenation that finger skin is out of shape, as shown in Figure 4.Dotted line among the figure represents pressure signal, and solid line is for the deformation curve of finger, and when opens solenoid valve 15, when pressure increased to 0.1MPa suddenly by 0, the distortion of finger increased gradually by 0; When shut electromagnetic valve 15, pressure is reduced to suddenly at 0 o'clock by 0.1MPa, and the distortion of finger reduces gradually, and the dynamic changing process of fingers deformed is referred to as creep.By the pressure of resize ratio pressure valve 16 and the distance between adjusting nozzle 21 and the finger 2, can study pressure and distance for the impact of fingers deformed.

2, the profile measurement of finger fingers deformed under certain constant pressure comprises the steps:

Step 3: identical with the step 1 of the kinetic measurement of fingers deformed, adjust position and the nozzle 21 and the distance of pointing between 2 of laser displacement sensor 9.

Step 4: the pressure of resize ratio pressure valve 16 is between 0.05MPa ~ 0.5MPa, open the displacement signal that industrial computer utilizes matlab6.5/simulink software collection laser displacement sensor 9, control X-direction mobile platform 5 is an at the uniform velocity mobile segment distance (such as 5-10mm) left, can obtain like this pointing stressed position before, 2 surfaces; Then open two solenoid valves 15, after finger fully is out of shape, the control X-direction mobile platform 5 same distance that moves right, gather simultaneously the displacement signal of laser displacement sensor 9, can obtain like this pointing stressed position afterwards, 2 surfaces, subtract each other the position of pointing 2 surperficial stressed front and back just can obtain pointing 2 deformable contour, as shown in Figure 5, central point 0 place (nozzle centerline is at the subpoint of finger surface) fingers deformed is maximum, distance apart from central point is larger, the distortion of finger reduces gradually, and finger deformable contour under pressure also just can obtain.By the pressure of resize ratio pressure valve 16 and the distance between adjusting nozzle 21 and the finger 2, can study pressure and distance for the impact of fingers deformed profile.

Claims (4)

1. non-contact type finger deformation measuring device, it is characterized in that comprising the horizontal shifting platform part, highly regulate part and pressure control section, described horizontal shifting platform partly comprises the X-direction horizontal shifting platform, the Y-direction horizontal shifting platform, sensor stand [8] and laser displacement sensor [9], this Y-direction horizontal shifting platform is positioned on the X-direction horizontal shifting platform, and vertical with the X-direction horizontal shifting platform, this X-direction horizontal shifting platform comprises X-direction stepper motor [4], X-direction mobile platform [5], X-direction stepper motor [4] connects X-direction mobile platform [5] by shaft coupling, the Y-direction horizontal shifting platform comprises Y-direction stepper motor [6], Y-direction mobile platform [7], Y-direction stepper motor [6] connects Y-direction mobile platform [7] by shaft coupling, described sensor stand [8] is fixed on the Y-direction mobile platform [7], and laser displacement sensor [9] is fixed on the sensor stand [8]; Described height adjusting portion is divided and is comprised pedestal [1], scale [10], slide block [11], set nut [12], transparent plexiglass plate [3] and screw [13], the center section of described pedestal [1] upper surface is that the inclined-plane is used for placing finger [2], with center section join about two end surfaces be the plane, scale [10] is vertically mounted on the right-hand member plane of pedestal [1], slide block [11] moves along scale [10] Z-direction, and can be locked on the scale [10] by set nut [12], transparent plexiglass plate [3] is connected with slide block [11] by screw [13], this transparent plexiglass plate [3] is vertical with scale [10], and parallel with pedestal [1]; Described pressure control section comprises source of the gas [17], proportional pressure valve [16], two solenoid valves [15] and tensimeter [14], described source of the gas [17], proportional pressure valve [16], two solenoid valves [15] are connected 14 with tensimeter] connect by tracheae, this tracheae also is connected with air intake opening [20] on the transparent plexiglass plate [3], this air intake opening [20] communicates with nozzle [21], this nozzle [21] is positioned at the top of finger [2], and the industrial computer that matlab6.5/simulink software is housed is connected 14 with laser displacement sensor [9] with tensimeter] be connected; The pedestal [1] of highly regulating part is parallel with the X-direction mobile platform [5] of horizontal shifting platform part, the laser beam that laser displacement sensor [9] sends passes transparent plexiglass plate [3] and nozzle [21] arrives finger [2] surface, measure the distortion of finger, change the acting force that acts on the finger by the distance of regulating between proportional pressure valve [16] pressure and nozzle [21] and the finger [2], thereby change the distortion of finger.
2. non-contact type finger deformation measuring device according to claim 1, it is characterized in that: the center section of pedestal [1] upper surface is the inclined-plane of inclination 20-30 degree.
3. non-contact type finger deformation measuring device according to claim 1, it is characterized in that: transparent plexiglass plate [3] is comprised of transparent upper plate [18] and lower plate [19], air intake opening [20] on the described lower plate [19] is perpendicular to the side [22] of lower plate [19], nozzle [21] on the described lower plate [19] is through hole, bottom surface [23] perpendicular to lower plate [19], and communicate with air intake opening [20], described upper plate [18] is connected 19 with lower plate] connect sealing by glass cement, to guarantee that pressurized air is sprayed by nozzle [21], being applied to finger surface makes finger produce distortion, the laser beam that described laser displacement sensor [9] sends passes upper plate [18] and nozzle [21] arrives finger [2] surface, the distortion of measuring finger.
4. a non-contact type finger deformation measurement method is characterized in that measuring the dynamic changing process of fingers deformed and the profile of fingers deformed, namely
At first, the device of design non-contact type finger deformation measurement, this non-contact type finger deformation measuring device comprises the horizontal shifting platform part, highly regulate part and pressure control section, described horizontal shifting platform partly comprises the X-direction horizontal shifting platform, the Y-direction horizontal shifting platform, sensor stand [8] and laser displacement sensor [9], this Y-direction horizontal shifting platform is positioned on the X-direction horizontal shifting platform, and vertical with the X-direction horizontal shifting platform, this X-direction horizontal shifting platform comprises X-direction stepper motor [4], X-direction mobile platform [5], X-direction stepper motor [4] connects X-direction mobile platform [5] by shaft coupling, the Y-direction horizontal shifting platform comprises Y-direction stepper motor [6], Y-direction mobile platform [7], Y-direction stepper motor [6] connects Y-direction mobile platform [7] by shaft coupling, described sensor stand [8] is fixed on the Y-direction mobile platform [7], and laser displacement sensor [9] is fixed on the sensor stand [8]; Described height adjusting portion is divided and is comprised pedestal [1], scale [10], slide block [11], set nut [12], transparent plexiglass plate [3] and screw [13], the center section of described pedestal [1] upper surface is that the inclined-plane is used for placing finger [2], with center section join about two end surfaces be the plane, scale [10] is vertically mounted on the right-hand member plane of pedestal [1], slide block [11] moves along scale [10] Z-direction, and can be locked on the scale [10] by set nut [12], transparent plexiglass plate [3] is connected with slide block [11] by screw [13], this transparent plexiglass plate [3] is vertical with scale [10], and parallel with pedestal [1]; Described pressure control section comprises source of the gas [17], proportional pressure valve [16], two solenoid valves [15] and tensimeter [14], described source of the gas [17], proportional pressure valve [16], two solenoid valves [15] are connected 14 with tensimeter] connect by tracheae, this tracheae also is connected with air intake opening [20] on the transparent plexiglass plate [3], this air intake opening [20] communicates with nozzle [21], this nozzle [21] is positioned at the top of finger [2], and the industrial computer that matlab6.5/simulink software is housed is connected 14 with laser displacement sensor [9] with tensimeter] be connected; The pedestal [1] of highly regulating part is parallel with the X-direction mobile platform [5] of horizontal shifting platform part, the laser beam that laser displacement sensor [9] sends passes transparent plexiglass plate [3] and nozzle [21] arrives finger [2] surface, measure the distortion of finger, change the acting force that acts on the finger by the distance of regulating between proportional pressure valve [16] pressure and nozzle [21] and the finger [2], thereby change the distortion of finger;
Secondly, the dynamic change of finger certain point deformation under dynamic pressure is measured, and comprises the steps:
Step 1: finger [2] is placed on the inclined-plane of pedestal [1], and by double faced adhesive tape finger [2] nail one side and inclined-plane is fixed, and prevents the loosening measurement result that affects of finger [2]; Adjust respectively X-direction mobile platform [5] and Y-direction mobile platform [7], make the laser beam of laser displacement sensor [9] be positioned at the center of transparent plexiglass plate [3] top nozzle [21]; Adjust the position of slide block [11], make transparent plexiglass plate [3] and finger [2] Surface Contact, at this moment the distance between nozzle [21] and the finger [2] is 0, then slide block [11] moves up, make nozzle [21] and the distance of finger between [2] between 1~4mm, with set nut [12] slide block [11] is locked;
Step 2: the pressure of resize ratio pressure valve [16] is between 0.05MPa~0.5MPa, open industrial computer and utilize the displacement signal of matlab6.5/simulink software collection laser displacement sensor [9] and the pressure signal of tensimeter [14], then open two solenoid valves [15], pressurized air is ejected into finger surface by nozzle [21] and makes fingers deformed, gather the dynamic process of fingers deformed, if close two solenoid valves [15], obtain the rejuvenation of finger skin distortion;
Again, the profile measurement of finger fingers deformed under certain constant pressure comprises the steps:
Step 3: finger dynamic change measurement of certain point deformation under dynamic pressure is identical with step 1, adjusts the position of laser displacement sensor [9] and the distance between nozzle [21] and the finger [2];
Step 4: the pressure of resize ratio pressure valve [16] is between 0.05MPa~0.5MPa, open the displacement signal that industrial computer utilizes matlab6.5/simulink software collection laser displacement sensor [9], control X-direction mobile platform [5] is an at the uniform velocity mobile segment distance left, obtains stressed position before, finger [2] surface; Then open two solenoid valves [15], after finger fully is out of shape, control X-direction mobile platform [5] the same distance that moves right, gather simultaneously the displacement signal of laser displacement sensor [9], obtain the stressed position afterwards of finger surface, the profile that must arrive the finger distortion is subtracted each other in the position of stressed front and back.
CN 201110213061 2011-07-28 2011-07-28 Non-contact finger deformation measuring device and measuring method CN102288126B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110213061 CN102288126B (en) 2011-07-28 2011-07-28 Non-contact finger deformation measuring device and measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110213061 CN102288126B (en) 2011-07-28 2011-07-28 Non-contact finger deformation measuring device and measuring method

Publications (2)

Publication Number Publication Date
CN102288126A CN102288126A (en) 2011-12-21
CN102288126B true CN102288126B (en) 2013-03-13

Family

ID=45334754

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110213061 CN102288126B (en) 2011-07-28 2011-07-28 Non-contact finger deformation measuring device and measuring method

Country Status (1)

Country Link
CN (1) CN102288126B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103954231B (en) * 2014-03-28 2016-08-17 电子科技大学 The contactless measurement of Deformation in Cold-Bend Forming strip cross-sectional profiles
CN104569327B (en) * 2014-12-12 2017-10-20 中国农业大学 A kind of livestock meat viscoelasticity nondestructive detection system
CN104568736B (en) * 2014-12-12 2018-03-09 中国农业大学 A kind of livestock meat viscoelasticity lossless detection method
CN105858477B (en) * 2015-08-11 2017-08-01 孙富亮 A kind of laser range finder of energy automatic position adjusting function
CN107105565B (en) * 2017-05-02 2018-12-18 西北工业大学 A kind of slight pressure traverse measuring device and measurement method for plasma flow control

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286242A (en) * 1994-02-01 1995-08-09 Timothy William Tod Bending detection device
CN1399715A (en) * 1999-09-06 2003-02-26 英诺特克欧洲股份有限公司 Distortion detector
WO2003067185A1 (en) * 2002-02-09 2003-08-14 Shenyang Tonglian Group High Technology Company Ltd A sensing device for measuring the three dimension shape and its measuring method
CN101356418A (en) * 2005-11-07 2009-01-28 大发工业株式会社 Shape recognizing device and deformation evaluating device
GB2458007A (en) * 2008-03-05 2009-09-09 Honeywell Int Inc Hygienic non-contact biometric fingerprint image acquisition system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2286242A (en) * 1994-02-01 1995-08-09 Timothy William Tod Bending detection device
CN1399715A (en) * 1999-09-06 2003-02-26 英诺特克欧洲股份有限公司 Distortion detector
WO2003067185A1 (en) * 2002-02-09 2003-08-14 Shenyang Tonglian Group High Technology Company Ltd A sensing device for measuring the three dimension shape and its measuring method
CN101356418A (en) * 2005-11-07 2009-01-28 大发工业株式会社 Shape recognizing device and deformation evaluating device
GB2458007A (en) * 2008-03-05 2009-09-09 Honeywell Int Inc Hygienic non-contact biometric fingerprint image acquisition system

Also Published As

Publication number Publication date
CN102288126A (en) 2011-12-21

Similar Documents

Publication Publication Date Title
EP1582839B1 (en) Apparatus and Method for Measuring the Shape of a Surface
CN103252761A (en) Long-stroke two-dimensional nano worktable system with angle compensation function
CN203785643U (en) High speed flatness detector
KR20100050493A (en) Compensation of measurement errors due to dynamic deformations in a coordinate measuring machine
US6295866B1 (en) Surface-tracking measuring machine
CN202075388U (en) ICT test fixture
CA2857621C (en) Curvature retaining device for plate-shaped workpiece, curvature retaining method for plate-shaped workpiece, and curvature forming method for plate-shaped workpiece
CN104897099B (en) A kind of controllable contact pin type displacement sensor of measuring force for micromorphology detection
Ohka et al. An experimental optical three-axis tactile sensor for micro-robots
CN100410625C (en) Shedding profilogram measuring apparatus
CN102288132B (en) Method for measuring vertex curvature radius deviation of aspheric surface by using laser tracking instrument
CN100529703C (en) Six-dimension force sensor calibration device
CN103217345B (en) Device and method for measuring actual triaxial creep of geotechnical engineering test specimen
CN101738855A (en) Flexible micro-positioning stage with two degrees of freedom
CN203310858U (en) Measuring system based on detection of reference model having nanometer surface microstructure
CN104834380A (en) Flexible object tactile modeling and expressing method applied to mobile terminal
Yang et al. Development of high-precision micro-coordinate measuring machine: Multi-probe measurement system for measuring yaw and straightness motion error of XY linear stage
WO2013044677A1 (en) Large-scale, three-dimensional coordinate measuring method and apparatus with laser tracking
CN103759652B (en) Two-dimentional micro-scale measurement device and method based on double optical fiber grating
CN2694226Y (en) High precision flatness measuring instrument
EP2172735B1 (en) Method for determining a resilience matrix of a three dimensional sensor for arbitrary orientations
CN102539101A (en) Force limit control vibration test system and test method
CN100549649C (en) A kind of scaling method that is used for six-dimension force sensor calibration device
CN202734761U (en) Light and magnetism combined full-angle three-dimensional detection system
CN101435696B (en) Device and method for measuring light sheet thickness

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130313

Termination date: 20150728

EXPY Termination of patent right or utility model