CN111122310A - Rock compression deformation measuring device and system - Google Patents

Rock compression deformation measuring device and system Download PDF

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Publication number
CN111122310A
CN111122310A CN202010086209.XA CN202010086209A CN111122310A CN 111122310 A CN111122310 A CN 111122310A CN 202010086209 A CN202010086209 A CN 202010086209A CN 111122310 A CN111122310 A CN 111122310A
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China
Prior art keywords
measuring
measuring part
optical fiber
rock
elastic
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CN202010086209.XA
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Chinese (zh)
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不公告发明人
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Zhongshan Kelite Optoelectronics Technology Co Ltd
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Zhongshan Kelite Optoelectronics Technology Co Ltd
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Priority to CN202010086209.XA priority Critical patent/CN111122310A/en
Publication of CN111122310A publication Critical patent/CN111122310A/en
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    • 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
    • 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
    • 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
    • G01N2203/0058—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
    • G01N2203/0641—Indicating or recording means; Sensing means using optical, X-ray, ultraviolet, infrared or similar detectors

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention relates to the field of optical measuring devices, in particular to a rock compression deformation measuring device and system. According to the measuring device, a first measuring part, a second measuring part, a third measuring part and a fourth measuring part are respectively arranged on four side surfaces of a cuboid shell and are perpendicular to the side surfaces; the other end of the first measuring part, the second measuring part, the third measuring part and the fourth measuring part are respectively abutted against and held on the sample groove, the rock to be measured is under the action of pressure, when deformation occurs, the first measuring part is extruded, the second measuring part, the elastic arm of the third measuring part and the fourth measuring part is deformed, because the grating optical fiber is tightly attached to the elastic arm, the grating optical fiber is also correspondingly deformed, and further the spectrum of the light reflected back to the optical fiber through the grating optical fiber is changed, the spectrum of the emergent light through the optical fiber is detected, and the elastic modulus of the rock to be measured which can be accurate is calculated.

Description

Rock compression deformation measuring device and system
Technical Field
The invention relates to the field of optical measuring devices, in particular to a rock compression deformation measuring device and system.
Background
In a rock deformation test, the axial and radial deformation of a sample is generally measured under the action of longitudinal pressure, and the elastic modulus and the poisson ratio of the rock to be measured are obtained by calculating the deformation degree.
In the prior art, a resistance strain gauge is generally attached to a rock to be measured, and the stress in the region is represented by single-point stress measured by a plurality of resistance strain gauges, so that the elastic modulus and the poisson ratio of the rock to be measured are obtained.
However, resistive strain gages use a single point of stress as the stress in the region, making rock stress measurements inaccurate.
Disclosure of Invention
The invention aims to provide a rock compression deformation measuring device and system aiming at the defects in the prior art, so as to solve the problem that the rock stress measurement is inaccurate when a resistance strain gauge in the prior art uses single-point stress as stress in a region.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, the present application provides a rock compression deformation measuring device, the rock compression deformation measuring device includes: the device comprises a sample groove, a first measuring part, a second measuring part, a third measuring part, a fourth measuring part and a shell; the shell is a cuboid, the cuboid shell comprises a bottom surface and four side surfaces, and a first measuring part, a second measuring part, a third measuring part and a fourth measuring part are respectively arranged on the four side surfaces of the cuboid shell and are perpendicular to the side surfaces; the other ends of the first measuring part, the second measuring part, the third measuring part and the fourth measuring part are respectively abutted against the sample groove;
the first measuring part, the second measuring part, the third measuring part and the fourth measuring part all include: the optical fiber grating comprises a stress part, an elastic arm, a fixing part, a grating optical fiber and an optical fiber; one end of the stress part is connected with the sample groove, the other end of the stress part is connected with the elastic arm, the other end of the elastic arm is connected with the fixing part, the other end of the fixing part is connected with the side face of the shell, the optical fiber is connected with the grating optical fiber and arranged on one side of the elastic arm, and the other end of the optical fiber penetrates through the side face of the shell.
Optionally, the rock compression deformation measuring device further comprises an elastic layer, and the elastic layer is arranged between the elastic arm and the grating optical fiber.
Optionally, the rock compression deformation measuring device further comprises an elastic part, the elastic part is arranged between the grating optical fiber and the stress groove, and the side surface of the grating optical fiber is connected with the stress part.
Optionally, the material of the elastic part is a transparent material.
Optionally, the rock compression deformation measuring device further comprises a noble metal membrane disposed between the elastic portion and the force-receiving portion.
Optionally, the lengths of the elastic arms in the first measuring part, the second measuring part, the third measuring part and the fourth measuring part are different.
In a second aspect, the present application further provides another rock compression deformation measurement system, where the rock compression deformation measurement system includes a light source, an optical detector and the rock compression deformation measurement device of any one of the first aspect, the other end of the optical fiber is connected with the light source and the optical detector respectively, the light source is used for generating light, and the optical detector is used for detecting the light transmitted through the optical fiber.
Optionally, the light detector comprises at least one of a spectrometer and a light intensity detector.
The invention has the beneficial effects that:
according to the measuring device, a first measuring part, a second measuring part, a third measuring part and a fourth measuring part are respectively arranged on four side surfaces of a cuboid shell and are perpendicular to the side surfaces; the other ends of the first measuring part, the second measuring part, the third measuring part and the fourth measuring part are respectively abutted against and held on the sample groove, a sample of a rock to be measured is placed into the sample groove, pressure is applied to the rock to be measured, when the rock to be measured deforms under the action of the pressure, the elastic arms of the first measuring part, the second measuring part, the third measuring part and the fourth measuring part are extruded to deform, the grating optical fiber is tightly attached to the elastic arms, so that the grating optical fiber correspondingly deforms, the spectrum of light reflected back to the optical fiber through the grating optical fiber is changed, the spectrum of emergent light of the optical fiber is detected, the corresponding relation between the change condition of the spectrum of the emergent light and the deformation of the rock to be measured is passed through, and the elastic modulus of the rock to be measured can be accurate through calculation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a rock compression deformation measuring apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another rock compression set measuring apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of another rock compression set measuring apparatus according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another rock compression set measuring apparatus according to an embodiment of the present invention.
Icon: 10-a housing; 20-a sample cell; 30-a first measuring section; 31-a force-receiving portion; 32-a resilient arm; 33-a fixed part; 34-an optical fiber; 35-a grating fiber; 36-an elastic layer; 37-an elastic portion; 38-noble metal film; 40-a second measuring section; 50-a third measuring section; 60-a fourth measuring section.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiment is a metal plate embodiment of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to make the implementation of the present invention clearer, the following detailed description is made with reference to the accompanying drawings.
The embodiment of the application provides a rock compression deformation measuring device, rock compression deformation measuring device includes: a sample tank 20, a first measuring part 30, a second measuring part 40, a third measuring part 50, a fourth measuring part 60, and a housing 10; the shell 10 is a cuboid, the cuboid shell 10 comprises a bottom surface and four side surfaces, and a first measuring part 30, a second measuring part 40, a third measuring part 50 and a fourth measuring part 60 are respectively arranged on the four side surfaces of the cuboid shell 10 and are perpendicular to the side surfaces; the other ends of the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 respectively abut against the sample groove 20; the first measurement portion 30, the second measurement portion 40, the third measurement portion 50, and the fourth measurement portion 60 each include: a force receiving portion 31, an elastic arm 32, a fixing portion 33, a grating fiber 35, and a fiber 34; one end of the force-bearing part 31 is connected with the sample groove 20, the other end is connected with the elastic arm 32, the other end of the elastic arm 32 is connected with the fixing part 33, the other end of the fixing part 33 is connected with the side surface of the shell 10, the optical fiber 34 is connected with the grating optical fiber 35 and arranged on one side of the elastic arm 32, and the other end of the optical fiber 34 penetrates through the side surface of the shell 10.
The volume of the housing 10 is set according to actual needs, and is not specifically limited herein, generally, the housing 10 may be an uncovered rectangular parallelepiped or an uncovered cube, and is selected according to actual needs, the size of the sample tank 20 is set according to actual conditions, and generally, when detecting a rock, the rock needs to be cut into a volume according with the size of the sample tank 20, and the rock is placed in the sample tank 20, and the gap between the rock and the sample tank 20 is small, the sample tank 20 may be set at the center of the housing 10, or may be set at other positions, and is not specifically limited herein, for convenience of description, the sample tank 20 is set at the center of the housing 10, and each of the first measuring portion 30, the second measuring portion 40, the third measuring portion 50, and the fourth measuring portion 60 includes: the optical fiber 34 is connected with the grating optical fiber 35 in a melting way, the force-receiving part 31, the elastic arm 32 and the fixing part 33 are sequentially connected, the other end of the force-receiving part 31 is connected with the sample tank 20, the other end of the fixing part 33 is connected with the shell 10, which is equivalent to the fact that the force-receiving part 31, the elastic arm 32 and the fixing part 33 are propped between the shell 10 and the sample tank 20, when a rock is detected, the rock is cut to be in accordance with the volume of the sample tank 20 and is placed in the sample tank 20, then pressure is applied on the rock, when the rock to be detected is deformed under the action of the pressure, the elastic arm 32 of the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 is squeezed to deform, and as the grating optical fiber 35 is arranged in close contact with the elastic arm 32, the grating optical fiber 35 is correspondingly deformed, furthermore, the spectrum of the light reflected back to the optical fiber 34 through the grating optical fiber 35 is changed, the spectrum of the emergent light of the optical fiber 34 is detected, the elastic modulus of the rock to be measured can be accurately obtained through calculation according to the corresponding relationship between the change condition of the spectrum of the emergent light and the deformation of the rock to be measured, in addition, the stress part 31 prevents the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 from being directly damaged by large deformation under large pressure, and the fixing part 33 is used for fixing the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 on the shell 10.
Alternatively, if forces are applied to the sample cell 20 both laterally and longitudinally, the poisson's ratio of the sample cell 20 may be obtained by the ratio of the lateral strain to the longitudinal strain.
The noun explains: the modulus of elasticity is the ratio of the uniaxial stress in the machine direction to the strain in the machine direction, and the protocol provides that the stress and the value of the strain in the machine direction under that stress are calculated as 50% of the uniaxial compressive strength. The modulus of elasticity under any stress can also be determined as desired.
Poisson's ratio is the ratio of transverse strain to longitudinal strain, and the specification specifies that the transverse strain value and the longitudinal strain value at 50% uniaxial compressive strength are used for calculation. The poisson's ratio at any stress may also be determined as desired.
It should be noted that, when the sample tank 20 is not located at the center of the housing 10, the deformation amount of the elastic arm 32 of the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 is different, that is, the spectrum of the light reflected by the grating fiber 35 back to the fiber 34 is different, by detecting the spectrum of the emergent light of the fiber 34, the elastic modulus and the poisson's ratio of the rock to be measured can be accurately calculated through the corresponding relationship between the change of the spectrum of the emergent light and the deformation amount of the rock to be measured, so that the calculation of the elastic modulus and the poisson's ratio of the rock to be measured is more accurate, optionally, the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 may further include a length adjusting device, which can adjust the lengths of the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60, i.e. to adjust the position of the sample well 20 in the housing 10.
Optionally, the rock compression set measuring device further comprises an elastic layer 36, and the elastic layer 36 is arranged between the elastic arm 32 and the grating fiber 35.
The material of the elastic layer 36 may be the same as that of the elastic arm 32, or may be different from that of the elastic arm 32, and is not specifically limited herein, and the elastic layer 36 is disposed between the elastic arm 32 and the optical fiber grating 35, and is used to buffer the influence of the elastic arm 32 on the length of the optical fiber grating 35 under a large deformation, so as to avoid the optical fiber grating 35 from being damaged due to the large deformation.
Optionally, the rock compression deformation measuring device further comprises an elastic part 37, the elastic part 37 is arranged between the grating optical fiber 35 and the force receiving groove, and the side surface of the grating optical fiber 35 is connected with the force receiving part 31.
The material of the elastic portion 37 may be the same as that of the elastic arm 32, or may be different from that of the elastic arm 32, and is not specifically limited herein, the elastic portion 37 is disposed between the grating fiber 35 and the force-receiving groove, and the side surface of the grating fiber 35 is connected to the force-receiving portion 31, after the elastic arm 32 is deformed by a force, the elastic portion 37 will affect the refractive index of the elastic portion 37, so as to change the reflection of the elastic portion 37 to the light in the fiber 34, and thus the light intensity detected in the detector changes. This detects light from two aspects: one aspect is a formant; another aspect is the magnitude of the reflection coefficient, and in addition, since the material of the elastic portion 37 is an elastic material, when the force-receiving portion 31 is subjected to a large pressure, the elastic portion 37 can counteract a part of the deformation, so as to prevent the grating fiber 35 and the fiber 34 from being damaged due to the large deformation.
Optionally, the material of the elastic portion 37 is a transparent material.
When this elastic component 37 is transparent material, can form the terminal surface reflection with this grating fiber 35, and then make the light that reflects optic fibre 34 through this grating fiber 35 increase, and then change the spectrum of this optic fibre 34 emergent light to the measurement that makes this optic fibre 34 emergent is more accurate, then also is more accurate to the measuring result of rock.
Optionally, the rock compression deformation measuring apparatus further includes a noble metal film 38, the noble metal film 38 being disposed between the elastic portion 37 and the force receiving portion 31.
When a metal film is disposed between the elastic portion 37 and the force-receiving portion 31, the grating fiber 35 is coupled to the metal film, and when the shape of the elastic portion 37 is changed by pressure, the distance between the metal film and the grating fiber 35 is also changed correspondingly, so as to change the coupling between the metal film and the grating fiber 35, and accordingly, the spectrum of the light emitted from the fiber 34 is changed correspondingly.
Optionally, the lengths of the elastic arms 32 in the first, second, third and fourth measuring parts 30, 40, 50 and 60 are different.
When the lengths of the elastic arms 32 in the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 are different, that is, the installation position of the sample groove 20 is not at the center position of the housing 10, the spectrums of the emergent light of the optical fibers 34 of the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 are all different, and the poisson's ratio and the elastic modulus of the rock to be measured can be obtained more accurately through the spectrums of the plurality of emergent light.
The first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 are respectively arranged on four side surfaces of the cuboid shell 10 and are perpendicular to the side surfaces; the other ends of the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 are respectively abutted against the sample tank 20, a sample of the rock to be measured is put into the sample tank 20, pressure is applied to the rock to be measured, when the rock to be measured deforms under the action of pressure, the elastic arms 32 of the first measuring part 30, the second measuring part 40, the third measuring part 50 and the fourth measuring part 60 are pressed to deform, and as the grating optical fiber 35 is tightly attached to the elastic arms 32, the optical fiber 35 is deformed accordingly, so that the spectrum of the light reflected back to the optical fiber 34 through the optical fiber 35 is changed, by detecting the spectrum of the emergent light of the optical fiber 34, the elastic modulus of the rock to be measured can be accurately obtained through calculation according to the corresponding relation between the change condition of the spectrum of the emergent light and the deformation quantity of the rock to be measured.
In a second aspect, the present application further provides another rock compression deformation measurement system, where the rock compression deformation measurement system includes a light source, an optical detector and any one of the rock compression deformation measurement devices, the other end of the optical fiber 34 is connected to the light source and the optical detector, respectively, the light source is used to generate light, and the optical detector is used to detect the light transmitted through the optical fiber 34.
The number of the light sources and the light detectors may be one or four, when the number of the light sources and the light detectors is one, the light sources respectively provide light to the optical fibers 34 of the first measuring unit 30, the second measuring unit 40, the third measuring unit 50, and the fourth measuring unit 60, the light detectors respectively detect light emitted from the first measuring unit 30, the second measuring unit 40, the third measuring unit 50, and the fourth measuring unit 60, when the number of the light sources and the light detectors is four, the four light sources respectively provide light to the optical fibers 34 of the first measuring unit 30, the second measuring unit 40, the third measuring unit 50, and the fourth measuring unit 60, and the four light detectors respectively detect light emitted from the first measuring unit 30, the second measuring unit 40, the third measuring unit 50, and the fourth measuring unit 60.
Optionally, the light detector comprises at least one of a spectrometer and a light intensity detector.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A rock compression set measuring apparatus, characterized in that the rock compression set measuring apparatus comprises: the device comprises a sample groove, a first measuring part, a second measuring part, a third measuring part, a fourth measuring part and a shell; the shell is a cuboid, the cuboid shell comprises a bottom surface and four side surfaces, and the first measuring part, the second measuring part, the third measuring part and the fourth measuring part are respectively arranged on the four side surfaces of the cuboid shell and are perpendicular to the side surfaces; the other ends of the first measuring part, the second measuring part, the third measuring part and the fourth measuring part respectively abut against the sample groove;
the first measuring part, the second measuring part, the third measuring part, and the fourth measuring part each include: the optical fiber grating comprises a stress part, an elastic arm, a fixing part, a grating optical fiber and an optical fiber; one end of the stress part is connected with the sample groove, the other end of the stress part is connected with the elastic arm, the other end of the elastic arm is connected with the fixing part, the other end of the fixing part is connected with the side face of the shell, the optical fiber is connected with the grating optical fiber and arranged on one side of the elastic arm, and the other end of the optical fiber penetrates through the side face of the shell.
2. The device according to claim 1, further comprising an elastic layer disposed between the elastic arm and the grating fiber.
3. The rock compression deformation measuring device according to claim 1, further comprising an elastic portion disposed between the grating optical fiber and the force receiving groove, and a side surface of the grating optical fiber is connected to the force receiving portion.
4. A rock compression set measuring apparatus according to claim 3, wherein the material of the resilient portion is a transparent material.
5. The rock compression deformation measuring device according to claim 3, further comprising a noble metal membrane provided between the elastic portion and the force receiving portion.
6. A rock compression set measuring apparatus according to claim 1, wherein the lengths of the elastic arms in the first measuring portion, the second measuring portion, the third measuring portion and the fourth measuring portion are different.
7. A rock compression set measuring system, comprising a light source, a light detector and the rock compression set measuring apparatus of any one of claims 1 to 6, wherein the other end of the optical fiber is connected to the light source and the light detector, respectively, the light source is used for generating light, and the light detector is used for detecting the light transmitted through the optical fiber.
8. The rock compression set measurement system of claim 7, wherein the light detector comprises at least one of a spectrometer and a light intensity detector.
CN202010086209.XA 2020-02-11 2020-02-11 Rock compression deformation measuring device and system Withdrawn CN111122310A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010086209.XA CN111122310A (en) 2020-02-11 2020-02-11 Rock compression deformation measuring device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010086209.XA CN111122310A (en) 2020-02-11 2020-02-11 Rock compression deformation measuring device and system

Publications (1)

Publication Number Publication Date
CN111122310A true CN111122310A (en) 2020-05-08

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CN202010086209.XA Withdrawn CN111122310A (en) 2020-02-11 2020-02-11 Rock compression deformation measuring device and system

Country Status (1)

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CN (1) CN111122310A (en)

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Application publication date: 20200508