CN111337347A - Plant micro-mechanics detection device and detection method thereof - Google Patents
Plant micro-mechanics detection device and detection method thereof Download PDFInfo
- Publication number
- CN111337347A CN111337347A CN202010176465.8A CN202010176465A CN111337347A CN 111337347 A CN111337347 A CN 111337347A CN 202010176465 A CN202010176465 A CN 202010176465A CN 111337347 A CN111337347 A CN 111337347A
- Authority
- CN
- China
- Prior art keywords
- sample
- clamping frame
- displacement
- micro
- fixed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/068—Special adaptations of indicating or recording means with optical indicating or recording means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
- G01N2203/0051—Piezoelectric means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0075—Strain-stress relations or elastic constants
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/0617—Electrical or magnetic indicating, recording or sensing means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0676—Force, weight, load, energy, speed or acceleration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/06—Indicating or recording means; Sensing means
- G01N2203/067—Parameter measured for estimating the property
- G01N2203/0682—Spatial dimension, e.g. length, area, angle
Landscapes
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Nanotechnology (AREA)
- Molecular Biology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a plant micro-mechanics detection device and a detection method thereof, wherein the device generates nanometer-level high-precision micro-displacement through a piezoelectric driver, so that the device is suitable for the research of micro-scale samples; performing compression and tension experiments on the micro-scale sample through two detachable sample clamping frames; obtaining stress information of the sample through a force sensor; the device main body is placed under a stereoscopic microscope, and the change condition of the microstructure is synchronously obtained in the test through a camera, so that real-time visual detection is realized; the device has high overall measurement precision, simple operation and accurate control, and provides a detection device with excellent performance for the exploration of micromechanics.
Description
Technical Field
The invention relates to the field of micro-mechanical detection, in particular to a mechanical detection device which utilizes a piezoelectric driver to provide nanoscale micro-displacement, can perform compression and tension tests on a micro-scale sample to obtain mechanical characteristics and dynamically observe micro-morphological changes in real time.
Background
The mechanical properties of the microstructure have a certain influence on the response of macroscopic external forces. With the continuous and deep research, people have higher and higher requirements on the mechanical properties of substances with smaller scales. For example, in the fields of agriculture and forestry, plant mechanical characteristics are analyzed to optimize corresponding operation mechanical parameters, the micromechanics characteristics of new materials are represented in material mechanics, and the mechanical characteristics of the material in microscale are analyzed in the processes of analyzing the interaction and mechanical performance of soil particles in soil mechanics, so that more accurate and comprehensive results can be obtained. Micromechanics is the study of mechanical properties of materials at the micron and nanometer scales to analyze macroscopic response or damage mechanisms. Because the size of a research sample is small and greatly influenced by environmental factors, a mechanical measurement method commonly used in the macro stage is not suitable for the research of the scale and is limited by the precision of a driving device, most devices for testing the small sample at the present stage are used for indirect measurement instead of direct tensile and compressive property test, and the existing devices are difficult to synchronously obtain the change condition of the microscopic form of the sample in real time. The difficulty in obtaining reliable mechanical property parameters and performing comprehensive analysis by combining morphological change conditions is high. The piezoelectric ceramic is a special material capable of converting mechanical energy and electric energy, can generate controllable deformation when being subjected to a certain excitation signal, and can output an electric signal when the shape is changed. The piezoelectric actuator is a device which is made of piezoelectric ceramics and can generate deformation through electric signal control, has the advantages of simple structure, accurate control and the like, can realize accurate micro-displacement drive of nano-scale displacement, can be better suitable for a micro-mechanics detection device, but is a related detection device which utilizes the principle at present.
Therefore, mechanical analysis and modeling are performed on the microstructure, so as to perform mechanical response analysis on operations such as production and transportation, and particularly, a micromechanical testing device which has high driving precision, can directly acquire mechanical characteristics of the microstructure, synchronously acquire dynamic change conditions of microstructure morphology, is simple to operate and is accurate to control needs to be developed.
Disclosure of Invention
The invention aims to solve the problems that the size of the conventional mechanical property detection sample is limited, the mechanical property detection of a micro-scale sample is difficult to realize, the measurement precision is not high, and the change condition of a microstructure cannot be dynamically obtained in real time, and provides a micro-mechanical visual dynamic detection device which is suitable for the micro-scale sample, has a simple structure and is reliable in measurement and a detection method thereof; performing compression and tension experiments on the micro-scale sample through two detachable sample clamping frames; obtaining stress information of the sample through a force sensor; the device main body is placed under a stereoscopic microscope, and the change condition of the microstructure is synchronously obtained in the test through a camera, so that real-time visual detection is realized; the device has high overall measurement precision, simple operation and accurate control, and provides a detection device with excellent performance for the exploration of micromechanics.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a plant micro-mechanics detection device comprises a nano-scale tension and compression driving assembly, a sample clamping assembly, a three-coordinate micro-scale micro-displacement adjusting assembly, a control assembly and a data image processing assembly;
the nanoscale tension-compression driving assembly comprises a bottom plate, a rigid cushion block, a driver fixing frame and a piezoelectric driver, wherein the rigid cushion block is fixed on the bottom plate, and the driver fixing frame is fixed at the top of the rigid cushion block; the piezoelectric driver is fixed on the driver fixing frame and is a cuboid with strain gauges attached to two sides;
the sample clamping assembly comprises a movable support frame, a connecting plate and a fixed clamping frame; the sample moving support is fixed at the front part of the upper end of the force sensor, is in an inverted L shape, the horizontal part of the sample moving support faces one side of the fixed clamping frame, and the sample moving support is fixed with the displacement output end of the piezoelectric driver through the force sensor; the three-coordinate micron-sized micro-displacement adjusting assembly is fixed on the bottom plate, and the connecting plate is fixed on the three-coordinate micron-sized micro-displacement adjusting assembly; the fixed clamping frame is fixed on the upper part of the connecting plate, the front part of the fixed clamping frame is provided with a vertical flat plate, the rear part of the fixed clamping frame is provided with a horizontal connecting flat plate, and the vertical flat plate is vertical to the horizontal connecting flat plate; the upper part of the vertical flat plate is provided with a protruding rectangular flat plate;
the control assembly comprises a strain amplifying circuit, a piezoelectric control and data acquisition unit, a force sensor and a computer, wherein the piezoelectric control and data acquisition unit is fixed on the bottom plate; the piezoelectric control and data acquisition unit is respectively connected with an excitation signal line of the piezoelectric driver, a signal line of the force sensor and an output signal line of the strain amplifying circuit through control lines, the piezoelectric control and data acquisition unit is connected with a computer through a data line, and an input line of the strain amplifying circuit is connected with a signal line of a strain gauge on the piezoelectric driver;
the data image processing assembly comprises a stereoscopic microscope, a camera and a computer, wherein the camera is fixed on a camera fixing frame of the stereoscopic microscope and is connected with the computer through a data line; the stereomicroscope is arranged above the sample clamping assembly, and the objective lens of the stereomicroscope is aligned with a sample to be detected between the movable clamping frame and the fixed clamping frame;
under the control of a piezoelectric control and a data acquisition unit, the movable clamping frame can be driven by a piezoelectric driver to reciprocate towards the fixed clamping frame, and the fixed clamping frame can integrally move horizontally and vertically under the drive of the three-coordinate micron-sized micro-displacement adjusting assembly, so that the protruding rectangular flat plate on the fixed clamping frame can be parallel to the protruding flat plate of the movable clamping frame and form a clamping and extruding surface of a sample to be detected; and the detection data of the force sensor and the strain gauge and the stereoscopic microscope imaging image shot by the camera are synchronously transmitted and stored in the computer.
Based on the technical scheme, the following preferred implementation modes can be provided:
preferably, the driver fixing frame is fixed in the middle of the driver fixing frame by fixing glue.
Preferably, the three-coordinate micron-sized micro-displacement adjusting assembly is a three-coordinate micron-sized micro-displacement adjuster which comprises a vertical displacement mechanism, a horizontal longitudinal displacement mechanism and a horizontal transverse displacement mechanism, wherein the vertical displacement mechanism, the horizontal transverse displacement mechanism and the horizontal longitudinal displacement mechanism are respectively provided with a micro-displacement adjusting knob; the vertical displacement mechanism is fixed on the bottom plate and comprises a vertical moving slide block and a vertical slide rail, and the vertical moving slide block and the vertical slide rail form a moving pair; a screw pair is arranged in the vertical moving slide block, a vertical micro-displacement adjusting knob is connected with a bolt in the screw pair arranged in the vertical moving slide block through bevel gear transmission, and the vertical micro-displacement adjusting knob is rotated to drive the vertical moving slide block to move along a vertical slide rail; the lower part of the horizontal transverse displacement mechanism is integrally fixed on a vertical displacement slide block of the vertical displacement mechanism; the horizontal transverse displacement mechanism comprises a transverse sliding rail at the lower part and a transverse sliding block at the upper part, the transverse sliding block and the transverse sliding rail form a moving pair, a screw pair is arranged in the transverse sliding block, a transverse micro-displacement adjusting knob is connected with a bolt in the screw pair arranged in the transverse sliding block, and the transverse micro-displacement adjusting knob is rotated to drive the transverse sliding block to move along the transverse sliding rail; the lower part of the horizontal longitudinal displacement mechanism is integrally fixed on a transverse sliding block of the horizontal transverse displacement mechanism; the horizontal longitudinal displacement mechanism and the horizontal transverse displacement mechanism have the same structure, but the moving directions of the horizontal longitudinal displacement mechanism and the horizontal transverse displacement mechanism are mutually vertical.
Preferably, the sample to be detected is fixed on the vertical end surface of one side of the protruding rectangular flat plate facing the horizontal part of the movable support frame through glue.
Preferably, the displacement output direction of the piezoelectric actuator is perpendicular to the clamping and pressing surface.
Preferably, the bottom plate is provided with a plurality of mounting holes, and the bottoms of the rigid cushion block, the strain amplifying circuit, the piezoelectric control and data acquisition unit and the three-coordinate micron-sized micro-displacement adjustment assembly are fixed in the mounting holes through threaded connectors.
Preferably, the computer is provided with control software for controlling the entire detection device in an upper level.
Another object of the present invention is to provide a method for measuring compressive and tensile mechanical properties of a plant micro-mechanical testing device according to any of the above embodiments, which comprises the following steps:
the detection method of the compression mechanical property comprises the following steps:
first step sample treatment and parameter setting: after the whole device is installed and debugged, processing a sample to be detected according to the size specification required by detection, and fixing the sample to be detected on the vertical end surface of the fixed clamping frame by using glue; inputting test parameters required by detection in a control software interface of a computer;
the second step is to adjust the sample position: adjusting three micro-displacement adjusting knobs of a three-coordinate micron-sized micro-displacement adjuster, controlling the fixed clamping frame to move in the vertical and horizontal directions, enabling the sample to be right opposite to the front end surface of the horizontal part of the movable clamping frame, and adjusting the objective lens of the stereoscopic microscope to enable the objective lens to be right opposite to the sample;
thirdly, adjusting the compression initial position: the control and data acquisition unit is used for generating an excitation signal, and the piezoelectric driver is inching controlled, so that the power sensor and the movable clamping frame are driven to integrally move, and the movable clamping frame stops moving after gradually approaching a sample to be detected; then utilizing a three-coordinate micron-sized micro-displacement regulator to longitudinally and micro-regulate the fixed clamping frame to enable the fixed clamping frame to be close to the movable clamping frame, and when the sample is in contact with the movable clamping frame instantly, namely the force sensor detects a force signal and transmits the force signal to a computer through a control and data acquisition unit to display a reading, resetting the force sensor and the strain gauge reading of the piezoelectric driver to be used as a detection starting point;
fourth step compression test: controlling a starting program in a computer and sending test parameters to a control and data acquisition unit, controlling a piezoelectric driver to operate according to set parameters by the control and data acquisition unit, moving a horizontal part of a support frame to continuously compress a sample, and respectively acquiring force and displacement signals of a compression process by a force sensor and a strain gauge and transmitting the force and displacement signals to the computer through the control and data acquisition unit; meanwhile, the stereomicroscope obtains microscopic image information in the sample compression process, and the microscopic image information is transmitted to the computer through the camera, and the computer synchronously records microscopic deformation images, force and displacement data received in the sample compression process; when the compression displacement meets the requirement of the test set parameters, the control and data acquisition unit controls the piezoelectric driver to stop moving, namely, a compression test is completed;
and a fifth step of data processing: the control and data acquisition unit is used for controlling the piezoelectric driver to reset, the movable clamping frame and the fixed clamping frame are disassembled, and the movable clamping frame and the fixed clamping frame are cleaned for standby application and wait for next detection;
the detection method of the tensile mechanical property comprises the following steps:
first step sample treatment and parameter setting: after the whole device is installed and debugged, processing a sample to be detected according to the size specification required by detection, and inputting test parameters required by detection in a computer control interface;
fixing a sample in a second step: the control and data acquisition unit is used for generating an excitation signal, the piezoelectric driver is inching controlled, so that the power sensor and the movable clamping frame are driven to integrally move, and the movable clamping frame stops moving after approaching the fixed supporting frame; adjusting three micro-displacement adjusting knobs of a three-coordinate micron-sized micro-displacement adjuster, controlling the fixed clamping frame to move in the vertical and horizontal directions, enabling the horizontal part of the movable clamping frame to be flush with and opposite to the protruding rectangular flat plate of the fixed clamping frame, fixing one end of a sample to be detected on the end surface of the horizontal part of the movable clamping frame by using glue, and fixing the other end of the sample to be detected on the end surface of the protruding rectangular flat plate of the fixed clamping frame;
and step three, adjusting the position of the sample: adjusting the objective lens of the stereomicroscope to enable the objective lens to face the sample; then utilizing a three-coordinate micron-sized micro-displacement regulator to longitudinally and finely regulate the fixed clamping frame to enable the movable clamping frame to gradually get away from the fixed clamping frame, and after a force sensor detects a force signal and transmits the force signal to a computer through a control and data acquisition unit to display a reading, resetting the force sensor and the indication number of the strain gauge as a detection starting point;
and a fourth step of tensile test: controlling a starting program in a computer and sending test parameters to a control and data acquisition unit, controlling a piezoelectric driver to operate according to set parameters by the control and data acquisition unit, moving a horizontal part of a clamping frame to continuously stretch a sample, and respectively acquiring force and displacement signals of a stretching process by a force sensor and a strain gauge and transmitting the signals to the computer through the control and data acquisition unit; meanwhile, the stereomicroscope obtains microscopic image information of the sample in the stretching process and transmits the microscopic image information to the computer through the camera, and the computer synchronously records the microscopic deformation image, the force and the displacement data received in the sample stretching process; when the tensile displacement meets the requirement of the test set parameters, the control and data acquisition unit controls the piezoelectric driver to stop moving, namely, a tensile test is completed;
and a fifth step of data processing: and the piezoelectric driver is controlled by the control and data acquisition unit to reset, the movable clamping frame and the fixed clamping frame are disassembled, and the movable clamping frame and the fixed clamping frame are cleaned for standby and wait for next detection.
The invention has the beneficial effects that: the invention generates nanometer-level high-precision micro-displacement through the piezoelectric driver, so that the piezoelectric driver is suitable for the research of micro-scale samples; the micro-scale sample is subjected to compression and tension experiments through the two detachable sample clamping frames, so that the micro-scale sample is convenient to assemble, disassemble and clean; obtaining stress information of the sample through a force sensor; the device main body is arranged under a stereoscopic microscope, and the change condition of the microstructure is synchronously obtained in the test through a camera, so that real-time visual detection is realized. The device provided by the invention has the advantages of high overall measurement precision, simplicity in operation and accuracy in control, and provides a detection device with excellent performance for the exploration of micromechanics.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a schematic diagram of the main structure of the device of the present invention;
FIG. 3 is a top view of the main body structure of the device of the present invention;
FIG. 4 is a front view of the main structure of the device of the present invention;
FIG. 5 is a schematic diagram of a three-dimensional micro-scale micro-displacement actuator according to the present invention;
FIG. 6 is a schematic view of the structure of the sample holding jig of the present invention;
in the figure: the device comprises a bottom plate 1, a rigid cushion block 2, a driver fixing frame 3, a piezoelectric driver 4, a strain amplifying circuit 5, a control and data acquisition unit 6, a force sensor 7, a sample moving support frame 8, a three-coordinate micron-scale micro-displacement regulator 9, a sample clamping fixing end connecting flat plate 10, a sample fixing and clamping frame 11, a stereoscopic microscope 12 and a camera 13.
Detailed Description
The following further describes specific structures and embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 4, the main structure of the plant micro-mechanics detecting device provided in a preferred embodiment of the present invention includes a nano-scale pulling and pressing driving assembly, a sample holding assembly, a three-coordinate micro-scale micro-displacement adjusting assembly, a control assembly, and a data image processing assembly. The specific structure and operation of each part are described in detail below.
The nanoscale tension-compression driving assembly is used for carrying out nanoscale tension or compression on a plant tissue sample to be detected, and comprises a bottom plate 1, a rigid cushion block 2, a driver fixing frame 3 and a piezoelectric driver 4. Wherein, the rigid cushion block 2 is fixed on the bottom plate 1, and the driver fixing frame 3 is fixed on the top of the rigid cushion block 2; the driver holder 3 may be fixed in the middle of the driver holder 3 by fixing glue.
The piezoelectric driver 4 is in a cuboid shape, strain gauges 4-1 are respectively attached to two sides of the piezoelectric driver 4, the piezoelectric driver 4 can realize accurate extension and retraction under external control, tension or compression power is further provided for a sample, and the strain gauges 4-1 attached to the two sides of the piezoelectric driver can detect displacement in the tension or compression process.
The three-coordinate micron-scale micro-displacement adjusting assembly adopts a three-coordinate micron-scale micro-displacement adjuster 9 which can realize horizontal and vertical displacement adjustment along three directions of XYZ. The three-coordinate micron-sized micro-displacement regulator 9 is fixed on the bottom plate 1, and the realization form is various, as long as the precise regulation in three directions can be realized. As shown in fig. 5, in this embodiment, the three-coordinate micron-sized micro-displacement adjuster 9 includes a vertical displacement mechanism 9-1, a horizontal transverse displacement mechanism 9-2, and a horizontal longitudinal displacement mechanism 9-3, and the vertical displacement mechanism 9-1, the horizontal transverse displacement mechanism 9-2, and the horizontal longitudinal displacement mechanism 9-3 are all provided with micro-displacement adjusting knobs; the vertical displacement mechanism 9-1 is fixed on the bottom plate 1 and comprises a vertical moving slide block and a vertical slide rail, and the vertical moving slide block and the vertical slide rail form a moving pair; a screw pair is arranged in the vertical moving sliding block, the vertical micro-displacement adjusting knob is connected with a bolt in the screw pair arranged in the vertical moving sliding block through bevel gear transmission, and the vertical micro-displacement adjusting knob is rotated to drive the vertical moving sliding block to move along the vertical sliding rail. The lower part of the horizontal transverse displacement mechanism 9-2 is integrally fixed on a vertical moving slide block of the vertical displacement mechanism 9-1 and can integrally and synchronously move along with the vertical moving slide block. The horizontal transverse displacement mechanism 9-2 comprises a transverse sliding rail at the lower part and a transverse sliding block at the upper part, the transverse sliding block and the transverse sliding rail form a moving pair, a screw pair is arranged in the transverse sliding block, a transverse micro-displacement adjusting knob is connected with a bolt in the screw pair arranged in the transverse sliding block, and the transverse micro-displacement adjusting knob is rotated to drive the transverse sliding block to move along the transverse sliding rail. The lower part of the horizontal longitudinal displacement mechanism 9-3 is integrally fixed on a transverse slide block of the horizontal transverse displacement mechanism 9-2 and can integrally and synchronously move along with the transverse slide block of the horizontal transverse displacement mechanism 9-2. The horizontal longitudinal displacement mechanism 9-3 is the same as the horizontal transverse displacement mechanism 9-2 in structure, and also comprises a longitudinal slide rail at the lower part and a longitudinal slide block at the upper part, the longitudinal slide block and the longitudinal slide rail form a moving pair, a screw pair is arranged in the longitudinal slide block, a longitudinal micro-displacement adjusting knob is connected with a bolt in the screw pair arranged in the longitudinal slide block, and the longitudinal micro-displacement adjusting knob is rotated to drive the longitudinal slide block to move along the longitudinal slide rail. It should be noted that the moving directions of the horizontal longitudinal displacement mechanism 9-3 and the horizontal transverse displacement mechanism 9-2 are perpendicular to each other, wherein the horizontal longitudinal displacement mechanism 9-3 is used for controlling the fixed clamping frame 11 to move closer to or away from the movable clamping frame 8. The three-coordinate micron-sized micro-displacement regulator 9 can realize the accurate spatial movement of the upper carrying component.
The sample holding assembly comprises a mobile support 8, a connection plate 10 and a fixed holding frame 11. Wherein, the sample moving support 8 is fixed on the front part of the upper end of the force sensor 7, and is shaped like an inverted 'L', and is composed of a horizontal part and a vertical part, and the horizontal part faces to one side of the fixed clamping frame 11. The sample moving support 8 is fixed with the displacement output end of the piezoelectric actuator 4 through the force sensor 7, and when the piezoelectric actuator 4 is controlled to stretch and contract under the external control, the sample moving support 8 and the force sensor 7 can be driven to move synchronously. The connecting plate 10 is fixed on the three-coordinate micron-scale micro-displacement regulator 9; the fixed clamping frame 11 is fixed on the upper part of the connecting plate 10 and can be driven by the three-coordinate micron-sized micro-displacement regulator 9 along three directions. As shown in FIG. 6, the front part of the fixed clamping frame 11 is a vertical flat plate 11-1, the rear part is a horizontal connecting flat plate 11-2, the vertical flat plate 11-1 is vertical to the horizontal connecting flat plate 11-2, and a plurality of rib plates are arranged between the vertical flat plate 11-1 and the horizontal connecting flat plate 11-2 for reinforcement. The upper part of the vertical flat plate 11-1 is provided with a protruding rectangular flat plate 11-3, and the protruding rectangular flat plate 11-3 also faces to one side of the movable support frame 8.
The control assembly comprises a strain amplifying circuit 5, a piezoelectric control and data acquisition unit 6, a force sensor 7 and a computer, wherein the piezoelectric control and data acquisition unit 6 is fixed on the bottom plate 1; the piezoelectric control and data acquisition unit 6 is respectively connected with an excitation signal line of the piezoelectric driver 4, a signal line of the force sensor 7 and an output signal line of the strain amplifying circuit 5 through control lines, the piezoelectric control and data acquisition unit 6 is connected with a computer through a data line, and an input line of the strain amplifying circuit 5 is connected with a signal line of a strain gauge 4-1 on the piezoelectric driver 4. The computer is used as an upper control device, control software for upper control of the whole detection device can be loaded in the computer, and corresponding control parameters such as the output displacement length and the output displacement speed of the piezoelectric actuator 4 can be input into a control interface of the control software. The computer can send the control signal to the control and data acquisition unit 6 according to the set control parameter, and the control and data acquisition unit 6 further controls the actuation of the piezoelectric driver 4 to realize the output of the compression or tension displacement. In the displacement process, the force sensor 7 can detect the stress on the movable support frame 8 in real time and feed back the stress to the piezoelectric control and data acquisition unit 6; meanwhile, the strain gauge 4-1 can convert the stress change into an electric signal reflecting the output displacement of the piezoelectric driver 4, and the electric signal is amplified by the strain amplifying circuit 5 and then synchronously sent to the piezoelectric control and data acquisition unit 6. The data collected in the piezoelectric control and data collector 6 are sent to a computer for storage and subsequent processing.
The data image processing assembly comprises a stereoscopic microscope 12, a camera 13 and a computer, wherein the camera 13 is fixed on a camera fixing frame of the stereoscopic microscope 12 and is used for shooting images in the visual field range of the stereoscopic microscope 12. The camera 13 is connected with the computer through a data line, and images shot by the camera can be transmitted to the computer in real time. The stereomicroscope 12 is arranged above the sample clamping assembly, and the objective lens of the stereomicroscope 12 can be aligned with the sample to be detected between the movable clamping frame 8 and the fixed clamping frame 11.
In the device, under the control of the piezoelectric control and data acquisition unit 6, the movable clamping frame 8 can be driven by the piezoelectric driver 4 to reciprocate towards the fixed clamping frame 11. Moreover, in order to ensure the accuracy of detection, the displacement output direction of the piezoelectric actuator 4 should be perpendicular to the clamping pressing surface, i.e., perpendicular to the vertical flat plate 11-1 on the fixed clamping frame 11. The fixed clamping frame 11 can integrally move horizontally and vertically under the drive of the three-coordinate micron-sized micro-displacement regulator 9, so that the protruding rectangular flat plate 11-3 on the fixed clamping frame 11 can be parallel to the protruding flat plate 8-1 of the movable clamping frame 8, and the end faces of the side parts of the fixed clamping frame and the movable clamping frame can form a clamping and extruding surface for clamping and extruding a sample to be detected. The clamping pressing surfaces are actually two parallel end surfaces and are not separate planes. In addition, the side end faces of the two parts can be respectively used for fixing the two ends of the sample so as to stretch the sample. In the detection process, the detection data of the force sensor 7 and the strain gauge 4-1 and the imaging image of the stereoscopic microscope 12 shot by the camera 13 are synchronously transmitted and stored in the computer.
The sample to be tested is fixed in the sample holding assembly, preferably by glue, on the vertical end surface of the protruding rectangular plate 11-3 facing the horizontal part of the mobile support 8. When the detection is finished, the movable clamping frame 8 and the fixed clamping frame 11 can be detached respectively, and the sample fixed on the upper part is removed and cleaned, so that the detection is performed again.
In addition, in order to facilitate installation and position adjustment of each component on the bottom plate 1, a plurality of mounting holes with internal threads can be uniformly formed in the bottom plate 1, and the bottoms of the rigid cushion block 2, the strain amplification circuit 5, the piezoelectric control and data acquisition unit 6 and the three-coordinate micron-sized micro-displacement adjustment assembly are fixed in the mounting holes through threaded connecting pieces. The threaded connection can be selected from a bolt, a stud, a screw and other components capable of being matched with the mounting hole.
Based on the plant micro-mechanics detection device, the invention also provides a compression and tension mechanical property determination method, which comprises a compression mechanical property detection method and a tension mechanical property detection method. The two methods comprise the following specific steps:
the detection method of the compression mechanical property comprises the following steps:
first step sample treatment and parameter setting: after the whole device is installed and debugged, processing a sample to be detected according to the size specification required by detection, and fixing the sample to be detected on the vertical end surface of the fixed clamping frame 11 by using glue; inputting test parameters required by detection in a control software interface of a computer. The test parameters are determined according to the detection requirements, including but not limited to the displacement length, the displacement speed and the like required by the experiment.
The second step is to adjust the sample position: adjusting three micro-displacement adjusting knobs of a three-coordinate micron-sized micro-displacement adjuster 9, controlling a fixed clamping frame 11 to move in the vertical and horizontal directions, enabling a sample to be right opposite to the front end surface of a horizontal part of a movable clamping frame 8, and adjusting an objective lens of a stereoscopic microscope 12, so that the objective lens is right opposite to the sample;
thirdly, adjusting the compression initial position: the control and data acquisition unit 6 is used for generating an excitation signal to inching control the piezoelectric driver 4, so that the power sensor 7 and the movable clamping frame 8 are driven to integrally move, the movable clamping frame 8 is gradually close to a sample to be detected, and the movable clamping frame 8 stops moving; then utilizing a three-coordinate micron-sized micro-displacement regulator 9 to longitudinally and micro-regulate a fixed clamping frame 11 to enable the fixed clamping frame to be close to a movable clamping frame 8, stopping the fixed clamping frame 11 from moving when a sample is in contact with the movable clamping frame 8 instantly, namely a force signal is detected by a force sensor 7 and is transmitted to a computer through a control and data acquisition unit 6 to display a reading, and resetting the readings of the force sensor 7 and a strain gauge 4-1 of a piezoelectric driver 4 to be used as a detection starting point;
fourth step compression test: controlling a starting program in a computer and sending test parameters to a control and data acquisition unit 6, controlling a piezoelectric driver 4 to operate according to set parameters by the control and data acquisition unit 6, continuously compressing a sample by moving a horizontal part of a support frame 8, and respectively acquiring force and displacement signals of a compression process by a force sensor 7 and a strain gauge 4-1 and transmitting the force and displacement signals to the computer through the control and data acquisition unit 6; meanwhile, the stereomicroscope 12 obtains microscopic image information of the sample in the compression process and transmits the microscopic image information to the computer through the camera 13, and the computer synchronously records microscopic deformation images, force and displacement data received in the sample compression process; when the compression displacement meets the requirement of the test set parameters, the control and data acquisition unit 6 controls the piezoelectric driver 4 to stop moving, namely, a compression test is completed;
and a fifth step of data processing: the piezoelectric driver 4 is controlled to reset by the control and data acquisition unit 6, the movable clamping frame 8 and the fixed clamping frame 11 are disassembled, and the cleaning is carried out for standby application to wait for the next detection;
the detection method of the tensile mechanical property comprises the following steps:
first step sample treatment and parameter setting: after the whole device is installed and debugged, the sample to be detected is processed according to the size specification required by detection, and test parameters required by detection are input into a control interface of the computer 14. The test parameters are determined according to the detection requirements, including but not limited to the displacement length, the displacement speed and the like required by the experiment.
Fixing a sample in a second step: the control and data acquisition unit 6 is used for generating an excitation signal to inching control the piezoelectric driver 4, so that the power sensor 7 and the movable clamping frame 8 are driven to integrally move, and the movable clamping frame 8 stops moving after the movable clamping frame 8 approaches the fixed supporting frame 11; adjusting three micro-displacement adjusting knobs of a three-coordinate micron-sized micro-displacement adjuster 9, controlling a fixed clamping frame 11 to move in vertical and horizontal directions, enabling the horizontal part of the movable clamping frame 8 to be flush with and opposite to the end surface of the side part of a protruding rectangular flat plate 11-3 of the fixed clamping frame 11, keeping a proper distance between the two end surfaces, fixing one end of a sample to be detected on the end surface of the side part of the horizontal part of the movable clamping frame 8 by using glue, and fixing the other end of the sample to be detected on the end surface of the side part of the protruding rectangular flat plate 11-3 of the;
and step three, adjusting the position of the sample: adjusting the objective lens of the stereomicroscope 12 to enable the objective lens to face the sample; then utilizing a three-coordinate micron-sized micro-displacement regulator 9 to longitudinally and finely regulate a fixed clamping frame 11, enabling a movable clamping frame 8 to gradually get away from the fixed clamping frame 11, stopping the fixed clamping frame 11 from moving after a force sensor 7 detects a force signal and transmits the force signal to a computer through a control and data acquisition unit 6 to display a reading, and resetting the force sensor 7 and the indication number of a strain gauge 4-1 to be used as a detection starting point;
and a fourth step of tensile test: controlling a starting program in a computer and sending test parameters to a control and data acquisition unit 6, controlling a piezoelectric driver 4 to operate according to set parameters by the control and data acquisition unit 6, moving a horizontal part of a clamping frame 8 to continuously stretch a sample, and respectively acquiring force and displacement signals of a stretching process by a force sensor 7 and a strain gauge 4-1 and transmitting the signals to the computer through the control and data acquisition unit 6; meanwhile, the stereomicroscope 12 obtains microscopic image information of the sample in the stretching process and transmits the microscopic image information to the computer through the camera 13, and the computer synchronously records microscopic deformation images, force and displacement data received in the sample stretching process; when the tensile displacement meets the requirement of the test set parameters, the control and data acquisition unit 6 controls the piezoelectric driver 4 to stop moving, namely, a tensile test is completed;
and a fifth step of data processing: and the piezoelectric driver 4 is controlled to reset by the control and data acquisition unit 6, the movable clamping frame 8 and the fixed clamping frame 11 are disassembled, and the cleaning is carried out for standby and the next detection is waited.
In the process, the size specification of the sample to be detected is determined according to the detection requirement, and the distance between the fixed clamping frame 11 and the movable clamping frame 8 is adjusted to ensure that the sample can be fixed between the fixed clamping frame and the movable clamping frame during the stretching detection.
The above-described embodiments are merely preferred embodiments of the present invention, which should not be construed as limiting the invention. Various changes and modifications may be made by one of ordinary skill in the pertinent art without departing from the spirit and scope of the present invention. Therefore, the technical scheme obtained by adopting the mode of equivalent replacement or equivalent transformation is within the protection scope of the invention.
Claims (8)
1. A plant micro-mechanics detection device is characterized by comprising a nano-scale tension and compression driving assembly, a sample clamping assembly, a three-coordinate micron-scale micro-displacement adjusting assembly, a control assembly and a data image processing assembly;
the nanoscale tension-compression driving assembly comprises a bottom plate (1), a rigid cushion block (2), a driver fixing frame (3) and a piezoelectric driver (4), wherein the rigid cushion block (2) is fixed on the bottom plate (1), and the driver fixing frame (3) is fixed on the top of the rigid cushion block (2); the piezoelectric driver (4) is fixed on the driver fixing frame (3) and is a cuboid with strain gauges (4-1) attached to two sides;
the sample clamping assembly comprises a movable support frame (8), a connecting plate (10) and a fixed clamping frame (11); the sample moving support frame (8) is fixed at the front part of the upper end of the force sensor (7), the shape is inverted L-shaped, the horizontal part of the sample moving support frame faces one side of the fixed clamping frame (11), and the sample moving support frame (8) is fixed with the displacement output end of the piezoelectric driver (4) through the force sensor (7); the three-coordinate micron-sized micro-displacement adjusting assembly is fixed on the bottom plate (1), and the connecting plate (10) is fixed on the three-coordinate micron-sized micro-displacement adjusting assembly; the fixed clamping frame (11) is fixed on the upper part of the connecting plate (10), the front part of the fixed clamping frame is provided with a vertical flat plate (11-1), the rear part of the fixed clamping frame is provided with a horizontal connecting flat plate (11-2), and the vertical flat plate (11-1) is vertical to the horizontal connecting flat plate (11-2); the upper part of the vertical flat plate (11-1) is provided with a protruding rectangular flat plate (11-3);
the control assembly comprises a strain amplifying circuit (5), a piezoelectric control and data acquisition unit (6), a force sensor (7) and a computer, wherein the piezoelectric control and data acquisition unit (6) is fixed on the bottom plate (1); the piezoelectric control and data acquisition unit (6) is respectively connected with an excitation signal line of the piezoelectric driver (4), a signal line of the force sensor (7) and an output signal line of the strain amplification circuit (5) through control lines, the piezoelectric control and data acquisition unit (6) is connected with a computer through a data line, and an input line of the strain amplification circuit (5) is connected with a signal line of a strain gauge (4-1) on the piezoelectric driver (4);
the data image processing assembly comprises a stereoscopic microscope (12), a camera (13) and a computer, wherein the camera (13) is fixed on a camera fixing frame of the stereoscopic microscope (12), and the camera (13) is connected with the computer through a data line; the stereomicroscope (12) is arranged above the sample clamping assembly, and an objective lens of the stereomicroscope (12) is aligned with a sample to be detected between the movable clamping frame (8) and the fixed clamping frame (11);
under the control of a piezoelectric control and data acquisition unit (6), the movable clamping frame (8) can be driven by a piezoelectric driver (4) to reciprocate towards a fixed clamping frame (11), and the fixed clamping frame (11) can integrally move horizontally and vertically under the drive of a three-coordinate micron-sized micro-displacement adjustment assembly, so that a protruding rectangular flat plate (11-3) on the fixed clamping frame (11) can be parallel to a protruding flat plate (8-1) of the movable clamping frame (8) and form a clamping and extruding surface of a sample to be detected; the detection data of the force sensor (7) and the strain gauge (4-1) and the imaging image of the stereomicroscope (12) shot by the camera (13) are synchronously transmitted and stored in the computer.
2. A plant micro-mechanics detection device according to claim 1, characterized in that said driver holder (3) is fixed in the middle of the driver holder (3) by fixing glue.
3. The plant micro-mechanics detection device according to claim 1, wherein the three-coordinate micro-scale micro-displacement adjustment assembly is a three-coordinate micro-scale micro-displacement adjuster (9) which comprises a vertical displacement mechanism (9-1), a horizontal transverse displacement mechanism (9-2), and a horizontal longitudinal displacement mechanism (9-3), wherein the vertical displacement mechanism (9-1), the horizontal transverse displacement mechanism (9-2), and the horizontal longitudinal displacement mechanism (9-3) are all provided with micro-displacement adjustment knobs; the vertical displacement mechanism (9-1) is fixed on the bottom plate (1) and comprises a vertical moving slide block and a vertical slide rail, and the vertical moving slide block and the vertical slide rail form a moving pair; a screw pair is arranged in the vertical moving slide block, a vertical micro-displacement adjusting knob is connected with a bolt in the screw pair arranged in the vertical moving slide block through bevel gear transmission, and the vertical micro-displacement adjusting knob is rotated to drive the vertical moving slide block to move along a vertical slide rail; the lower part of the horizontal transverse displacement mechanism (9-2) is integrally fixed on a vertical moving slide block of the vertical displacement mechanism (9-1); the horizontal transverse displacement mechanism (9-2) comprises a transverse sliding rail at the lower part and a transverse sliding block at the upper part, the transverse sliding block and the transverse sliding rail form a moving pair, a screw pair is arranged in the transverse sliding block, a transverse micro-displacement adjusting knob is connected with a bolt in the screw pair arranged in the transverse sliding block, and the transverse micro-displacement adjusting knob is rotated to drive the transverse sliding block to move along the transverse sliding rail; the lower part of the horizontal longitudinal displacement mechanism (9-3) is integrally fixed on a transverse slide block of the horizontal transverse displacement mechanism (9-2); the horizontal longitudinal displacement mechanism (9-3) and the horizontal transverse displacement mechanism (9-2) have the same structure, but the moving directions of the two mechanisms are vertical to each other.
4. A plant biomechanical testing device according to claim 1, wherein a sample to be tested is fixed by glue to the vertical end surface of said protruding rectangular plate (11-3) on the side facing the horizontal portion of the mobile support frame (8).
5. A plant micro-mechanics detection device according to claim 1, characterized in that the displacement output direction of the piezoelectric actuator (4) is perpendicular to the clamping pressure surface.
6. The plant micro-mechanics detection device according to claim 1, characterized in that the bottom plate (1) is provided with a plurality of mounting holes, and the bottom of the rigid cushion block (2), the strain amplification circuit (5), the piezoelectric control and data acquisition unit (6) and the bottom of the three-coordinate micro-scale micro-displacement adjustment assembly are fixed in the mounting holes through threaded connectors.
7. The plant micro-mechanics detection device of claim 1, wherein said computer is provided with control software for controlling the whole detection device.
8. A method for measuring the compression and tension mechanical properties of the plant micro-mechanical testing device according to any one of claims 1 to 7, comprising the steps of:
the detection method of the compression mechanical property comprises the following steps:
first step sample treatment and parameter setting: after the whole device is installed and debugged, processing a sample to be detected according to the size specification required by detection, and fixing the sample to be detected on the vertical end surface of the fixed clamping frame (11) by using glue; inputting test parameters required by detection in a control software interface of a computer;
the second step is to adjust the sample position: adjusting three micro-displacement adjusting knobs of a three-coordinate micron-sized micro-displacement adjuster (9), controlling a fixed clamping frame (11) to move in the vertical and horizontal directions to enable a sample to be right opposite to the front end surface of a horizontal part of a movable clamping frame (8), and adjusting an objective lens of a stereoscopic microscope (12) to enable the objective lens to be right opposite to the sample;
thirdly, adjusting the compression initial position: the control and data acquisition unit (6) is used for generating an excitation signal, and the piezoelectric driver (4) is inching-controlled, so that the power sensor (7) and the movable clamping frame (8) are driven to integrally move, and the movable clamping frame (8) stops moving after approaching to a sample to be detected gradually; then utilizing a three-coordinate micron-sized micro-displacement regulator (9) to longitudinally and finely regulate a fixed clamping frame (11) to enable the fixed clamping frame to be close to a movable clamping frame (8), and when a sample is in contact with the movable clamping frame (8), namely a force sensor (7) detects a force signal and transmits the force signal to a computer through a control and data acquisition unit (6) to display a reading, resetting the readings of the force sensor (7) and a strain gauge (4-1) of a piezoelectric driver (4) to be used as a detection starting point;
fourth step compression test: controlling a starting program in a computer and sending test parameters to a control and data acquisition unit (6), controlling a piezoelectric driver (4) to operate according to set parameters by the control and data acquisition unit (6), continuously compressing a sample by moving a horizontal part of a support frame (8), and respectively acquiring force and displacement signals of a compression process by a force sensor (7) and a strain gauge (4-1) and transmitting the force and displacement signals to the computer through the control and data acquisition unit (6); meanwhile, the stereomicroscope (12) obtains microscopic image information of the sample in the compression process and transmits the microscopic image information to the computer through the camera (13), and the computer synchronously records microscopic deformation images, force and displacement data received in the sample compression process; when the compression displacement meets the requirement of the test set parameter, the control and data acquisition unit (6) controls the piezoelectric driver (4) to stop moving, namely, a compression test is completed;
and a fifth step of data processing: the control and data acquisition unit (6) is used for controlling the piezoelectric driver (4) to reset, the movable clamping frame (8) and the fixed clamping frame (11) are disassembled, and the cleaning standby is carried out for waiting for the next detection;
the detection method of the tensile mechanical property comprises the following steps:
first step sample treatment and parameter setting: after the whole device is installed and debugged, processing a sample to be detected according to the size specification required by detection, and inputting test parameters required by detection in a control interface of a computer (14);
fixing a sample in a second step: the control and data acquisition unit (6) is used for generating an excitation signal, the piezoelectric driver (4) is inching controlled, so that the power sensor (7) and the movable clamping frame (8) are driven to integrally move, and the movable clamping frame (8) stops moving after the movable clamping frame (8) approaches the fixed supporting frame (11); adjusting three micro-displacement adjusting knobs of a three-coordinate micron-sized micro-displacement adjuster (9), controlling a fixed clamping frame (11) to move in vertical and horizontal directions, enabling a horizontal part of the movable clamping frame (8) to be parallel and opposite to a protruding rectangular flat plate (11-3) of the fixed clamping frame (11), fixing one end of a sample to be detected on the end surface of the horizontal part of the movable clamping frame (8) by using glue, and fixing the other end of the sample to be detected on the end surface of the protruding rectangular flat plate (11-3) of the fixed clamping frame (11);
and step three, adjusting the position of the sample: adjusting the objective lens of the stereomicroscope (12) to face the sample; then utilizing a three-coordinate micron-sized micro-displacement regulator (9) to longitudinally and finely regulate a fixed clamping frame (11) to enable a movable clamping frame (8) to gradually get away from the fixed clamping frame (11), and after a force sensor (7) detects a force signal and transmits the force signal to a computer through a control and data acquisition unit (6) to display a reading, resetting the readings of the force sensor (7) and a strain gauge (4-1) to be used as a detection starting point;
and a fourth step of tensile test: controlling a starting program in a computer and sending test parameters to a control and data acquisition unit (6), controlling a piezoelectric driver (4) to operate according to set parameters by the control and data acquisition unit (6), moving a horizontal part of a clamping frame (8) to continuously stretch a sample, and respectively acquiring force and displacement signals of a stretching process by a force sensor (7) and a strain gauge (4-1) and transmitting the signals to the computer through the control and data acquisition unit (6); meanwhile, the stereomicroscope (12) obtains microscopic image information of the sample in the stretching process and transmits the microscopic image information to the computer through the camera (13), and the computer synchronously records microscopic deformation images, force and displacement data received in the sample stretching process; when the tensile displacement meets the requirement of the test set parameters, the control and data acquisition unit (6) controls the piezoelectric driver (4) to stop moving, namely, a tensile test is completed;
and a fifth step of data processing: and the piezoelectric driver (4) is controlled to reset by using the control and data acquisition unit (6), and the movable clamping frame (8) and the fixed clamping frame (11) are disassembled for cleaning and standby for waiting for next detection.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010176465.8A CN111337347B (en) | 2020-03-13 | 2020-03-13 | Plant micro-mechanics detection device and detection method thereof |
| PCT/CN2020/122130 WO2021179609A1 (en) | 2020-03-13 | 2020-10-20 | Micromechanical plant measurement apparatus and measurement method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010176465.8A CN111337347B (en) | 2020-03-13 | 2020-03-13 | Plant micro-mechanics detection device and detection method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111337347A true CN111337347A (en) | 2020-06-26 |
| CN111337347B CN111337347B (en) | 2021-07-20 |
Family
ID=71182342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010176465.8A Active CN111337347B (en) | 2020-03-13 | 2020-03-13 | Plant micro-mechanics detection device and detection method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111337347B (en) |
| WO (1) | WO2021179609A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179609A1 (en) * | 2020-03-13 | 2021-09-16 | 浙江大学 | Micromechanical plant measurement apparatus and measurement method therefor |
| CN114112657A (en) * | 2021-10-28 | 2022-03-01 | 东南大学江北新区创新研究院 | Piezoelectric testing device |
| CN114838857A (en) * | 2022-05-16 | 2022-08-02 | 华中农业大学 | Multi-dimensional anti-slip pulling force measuring device and testing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719747B (en) * | 2022-03-11 | 2023-06-16 | 华南理工大学 | Micro-displacement vision measurement device and method based on double light paths |
| CN114813022B (en) * | 2022-04-25 | 2023-04-07 | 中国空气动力研究与发展中心超高速空气动力研究所 | Loading and unloading system for measuring dynamic characteristics of test model in wind tunnel |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216390A (en) * | 2008-01-11 | 2008-07-09 | 大连理工大学 | Micro-element dynamic performance off-chip tensile test experimental bench |
| CN101419213A (en) * | 2008-12-08 | 2009-04-29 | 浙江大学 | Bird egg crack detection device and method by utilizing volatile matter |
| EP2122317A1 (en) * | 2007-02-21 | 2009-11-25 | The Board of Trustees of the University of Illinois | Stress micro mechanical test cell, device, system and methods |
| CN103091164A (en) * | 2013-01-15 | 2013-05-08 | 天津大学 | Double-system stretching device applicable to micro-nanometer thin film material |
| CN103278386A (en) * | 2013-05-22 | 2013-09-04 | 天津大学 | Measurement system for thin-film material tension-compression fatigue dynamic loading |
| CN109669261A (en) * | 2019-01-26 | 2019-04-23 | 殷跃锋 | A kind of cell detection microscope |
| CN110567859A (en) * | 2019-07-19 | 2019-12-13 | 华南理工大学 | Cell mechanical property measuring equipment and measuring method |
| CN209979376U (en) * | 2019-05-07 | 2020-01-21 | 东莞市质控仪器科技有限公司 | Chip push-pull force testing machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8297130B2 (en) * | 2008-11-12 | 2012-10-30 | The United States Of America As Represented By The Secretary Of The Air Force | Microtesting rig with variable compliance loading fibers for measuring mechanical properties of small specimens |
| CN204924787U (en) * | 2015-08-26 | 2015-12-30 | 曙鹏科技（深圳）有限公司 | Battery extrusion anchor clamps |
| CN111337347B (en) * | 2020-03-13 | 2021-07-20 | 浙江大学 | Plant micro-mechanics detection device and detection method thereof |
-
2020
- 2020-03-13 CN CN202010176465.8A patent/CN111337347B/en active Active
- 2020-10-20 WO PCT/CN2020/122130 patent/WO2021179609A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2122317A1 (en) * | 2007-02-21 | 2009-11-25 | The Board of Trustees of the University of Illinois | Stress micro mechanical test cell, device, system and methods |
| CN101216390A (en) * | 2008-01-11 | 2008-07-09 | 大连理工大学 | Micro-element dynamic performance off-chip tensile test experimental bench |
| CN101419213A (en) * | 2008-12-08 | 2009-04-29 | 浙江大学 | Bird egg crack detection device and method by utilizing volatile matter |
| CN103091164A (en) * | 2013-01-15 | 2013-05-08 | 天津大学 | Double-system stretching device applicable to micro-nanometer thin film material |
| CN103278386A (en) * | 2013-05-22 | 2013-09-04 | 天津大学 | Measurement system for thin-film material tension-compression fatigue dynamic loading |
| CN109669261A (en) * | 2019-01-26 | 2019-04-23 | 殷跃锋 | A kind of cell detection microscope |
| CN209979376U (en) * | 2019-05-07 | 2020-01-21 | 东莞市质控仪器科技有限公司 | Chip push-pull force testing machine |
| CN110567859A (en) * | 2019-07-19 | 2019-12-13 | 华南理工大学 | Cell mechanical property measuring equipment and measuring method |
Non-Patent Citations (1)
| Title |
|---|
| 于勇: "辐照稻谷种子的种胚微观结构特性及其萌发特性研究", 《中国粮油学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021179609A1 (en) * | 2020-03-13 | 2021-09-16 | 浙江大学 | Micromechanical plant measurement apparatus and measurement method therefor |
| CN114112657A (en) * | 2021-10-28 | 2022-03-01 | 东南大学江北新区创新研究院 | Piezoelectric testing device |
| CN114838857A (en) * | 2022-05-16 | 2022-08-02 | 华中农业大学 | Multi-dimensional anti-slip pulling force measuring device and testing method |
| CN114838857B (en) * | 2022-05-16 | 2023-12-05 | 华中农业大学 | Multi-dimensional anti-slip pulling force measuring device and test method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021179609A1 (en) | 2021-09-16 |
| CN111337347B (en) | 2021-07-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111337346B (en) | Micro-mechanics detection device and method | |
| CN111337347B (en) | Plant micro-mechanics detection device and detection method thereof | |
| CN103487315B (en) | A kind of material mechanical performance proving installation | |
| CN104297065B (en) | A kind of Piezoelectric Driving micro-stretching test device | |
| CN111579360B (en) | High-flux small sample pulling, pressing and bending test system and method | |
| CN101629885B (en) | Double probe micro nanometer mechanics detecting system | |
| CN103471905B (en) | For single-axis bidirectional micro mechanics measurement mechanism and the measuring method of scanning microscopy environment | |
| CN101216390A (en) | Micro-element dynamic performance off-chip tensile test experimental bench | |
| US6721667B2 (en) | Method and system for measuring properties of deformable material specimens | |
| CN104913974A (en) | Material micro-mechanical property biaxial tension-fatigue test system and test method thereof | |
| CN102252925A (en) | Nanoindentation/cutting test device | |
| CN103278386A (en) | Measurement system for thin-film material tension-compression fatigue dynamic loading | |
| CN102346117B (en) | Dynamic performance testing device of microradian-level accuracy in-situ torsion material under scanning electronic microscope | |
| CN104502202A (en) | Online material biaxial static-dynamic performance test platform under service temperature | |
| CN105973694A (en) | Nano indentation testing device under stretch-four-point bending preload | |
| CN104297082A (en) | In-situ micro-nano indentation/scratch tester | |
| CN109357938A (en) | A kind of material mesoscopic scale simple tension measuring system and method | |
| CN105181500A (en) | Stretching-bending combined-load in-situ nano-indentation test device and method | |
| CN204718885U (en) | Material Micro Mechanical Properties is biaxial stretch-formed-fatigue test system | |
| CN202256050U (en) | In-situ stretch/compression material mechanical test platform based on quasi-static loaded scanning electron microscope | |
| WO2019095409A1 (en) | Integrated multifunctional test instrument for biological reaction and soft tissue mechanics | |
| CN105547858A (en) | Measuring device and testing method for glass micro channel bending mechanical property | |
| CN205015236U (en) | Compound load normal position nanometer indentation testing arrangement of drawing - bending | |
| CN103499489B (en) | A kind of across yardstick, various visual angles in-situ mechanical motion capture test platform | |
| CN202057562U (en) | Nanometer press mark/scratch test device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |