CN117647319B - A temperature sensing device suitable for ultra-gravity centrifugal environment - Google Patents

Abstract

The present invention discloses a temperature sensing device suitable for use in a supergravity centrifugal environment, comprising a temperature sensitive mechanism, a heat-conducting stretching mechanism and a luminous visual mechanism. When the temperature changes, the shape memory thermocontracting material in the temperature sensitive mechanism shrinks and pulls the flexible photonic crystal in the luminous visual mechanism through the flexible stretching belt in the heat-conducting stretching mechanism, so that the flexible photonic crystal tilts toward the flexible stretching belt. Due to the limiting effect of the thrust rod in the luminous visual mechanism, the lattice spacing inside the flexible photonic crystal changes, so that the diffraction wavelength of the flexible photonic crystal changes, thereby presenting a color change phenomenon. The present invention does not require the laying of cables, and uses the shape memory thermocontracting material to drive the flexible photonic crystal to deform. The deformation causes the diffraction color of the flexible photonic crystal to change, and the temperature inside the supergravity model can be accurately grasped by color.

Description

A temperature sensing device suitable for ultra-gravity centrifugal environment

Technical Field

The invention relates to the field of ultra-gravity technology, in particular to a temperature sensing device suitable for use in an ultra-gravity centrifugal environment.

Background technique

At present, high-gravity model tests are gradually being applied to new technologies for strengthening multiphase flow transfer and reaction processes. Due to its wide applicability and the scale-down characteristics that traditional equipment does not have, high-gravity technology has broad commercial application prospects in industrial fields such as geotechnical engineering, environmental protection, materials, biochemical engineering, etc. High-gravity model tests can reduce the size and shorten the research time, so they are regarded as a "revolutionary engineering tool."

Supergravity technology has a typical scaling effect. Due to the scaling effect, the size of conventional sensor devices will be magnified several times in a supergravity field environment. Therefore, there is an urgent need to develop tiny and precise sensor devices.

In the hypergravity rock and soil model test, temperature is an important monitoring data and temperature sensors are used to collect temperature. Since the cables of existing temperature sensors inevitably need to be arranged inside the hypergravity rock and soil model, and the cables are subject to the scale effect in the hypergravity environment of the rock and soil, the cables reinforce the rock and soil themselves, which in turn causes damage to the structure of the rock and soil itself, destroys the constitutive relationship of the hypergravity rock and soil model, and causes the failure of the centrifuge model experiment.

Summary of the invention

The technical problem to be solved by the present invention is to provide a temperature sensing device suitable for use in a supergravity centrifugal environment. It does not require the laying of cables and uses shape memory temperature-induced shrinkage materials to drive the flexible photonic crystals to deform. The deformation causes the diffraction color of the flexible photonic crystals to change, and the temperature conditions inside the supergravity model can be accurately grasped through the color.

The technical solution of the present invention is:

A temperature sensing device suitable for use in an ultra-gravity centrifugal environment, comprising a temperature sensitive mechanism, a heat conducting stretching mechanism and a light-emitting visual mechanism;

The temperature sensitive mechanism comprises a heat-conducting shell and a shape-memory temperature-induced shrinkage material, wherein the shape-memory temperature-induced shrinkage material is positioned in the heat-conducting shell and in heat-conducting contact with the heat-conducting shell;

The heat-conducting stretching mechanism comprises a heat-insulating conduit and a flexible stretching belt, one end of the heat-insulating conduit is integrally connected to the heat-conducting housing and the two are interconnected, the flexible stretching belt is arranged in the heat-insulating conduit, and one end of the flexible stretching belt is fixedly connected to the shape memory temperature-induced shrinkage material;

The luminous visual mechanism includes an insulating shell, a plurality of thrust columns and a flexible photonic crystal. The other end of the insulating conduit is integrally connected to the insulating shell and the two are interconnected. The flexible photonic crystal is vertically arranged in the insulating shell and the bottom surface is fixedly connected to the bottom surface of the insulating shell. The inner surface of the flexible photonic crystal is fixedly connected to the other end of the flexible stretch band. The outer surface of the flexible photonic crystal faces the insulating shell, and the portion of the insulating shell relative to the outer surface of the flexible photonic crystal is a colorless and transparent structure. A plurality of thrust columns are horizontally arranged in the insulating shell, the outer end of each thrust column is fixed to the insulating shell, and the inner ends of the plurality of thrust columns are horizontally facing the inner surface of the flexible photonic crystal and are evenly distributed along the horizontal axis of the flexible photonic crystal.

When the temperature changes, the shape memory temperature-induced shrinkage material shrinks, and the shape memory temperature-induced shrinkage material pulls the flexible photonic crystal through the flexible stretch band. Since the bottom surface of the flexible photonic crystal is fixed on the thermal insulation shell, the flexible photonic crystal tilts toward the flexible stretch band. Due to the limiting effect of multiple thrust columns, the outer surface of the part of the flexible photonic crystal that is limited by the thrust column presents a convex structure, and the outer surface of the part that is not limited by the thrust column presents a concave structure, which changes the lattice spacing inside the flexible photonic crystal and changes the diffraction wavelength of the flexible photonic crystal, thereby presenting a color change phenomenon.

The inner cavity of the heat-conducting shell is a circular cavity, the shape memory temperature-induced shrinkage material is a circular plate-shaped structure, a circle of positioning columns is fixed on the annular inner wall of the heat-conducting shell, the shape memory temperature-induced shrinkage material is arranged in the heat-conducting shell and is in heat-conducting contact with the heat-conducting shell, a circle of positioning columns is evenly distributed on the periphery of the shape memory temperature-induced shrinkage material, each positioning column is fixedly connected to the shape memory temperature-induced shrinkage material through a corresponding elastic limiting band, so that the shape memory temperature-induced shrinkage material is positioned in the heat-conducting shell.

The shape memory temperature-induced shrinkage material is made of shape memory alloy or carbon nanotube/liquid crystal elastomer.

A row of limiting guide plates is arranged inside the heat-insulating conduit and along the axial direction of the heat-insulating conduit, and the flexible stretching belt passes through the row of limiting guide plates in sequence, thereby limiting the radial position of the flexible stretching belt inside the heat-insulating conduit.

The row of limiting guide plates are arranged parallel to each other along the axial direction of the thermal insulation pipe. Among two adjacent limiting guide plates, the top end of one limiting guide plate is fixedly connected to the thermal insulation pipe, and a guide gap is left between its bottom end and the thermal insulation pipe. The bottom end of the other limiting guide plate is fixedly connected to the thermal insulation pipe, and a guide gap is left between its top end and the thermal insulation pipe. The flexible stretching belt passes through the guide gap between each limiting guide plate and the thermal insulation pipe in turn, so that the flexible stretching belt forms a serpentine bending conduction structure in the thermal insulation pipe.

The flexible stretch belt is made of high temperature resistant insulation belt.

A row of support blocks is fixedly arranged on the bottom surface of the heat-insulating shell, and the bottom surface of the flexible photonic crystal is fixedly connected to the row of support blocks.

Two vertically arranged limit columns are arranged at the position adjacent to the heat-insulating pipe in the heat-conducting shell and at the position adjacent to the heat-insulating pipe in the heat-insulating shell. The two ends of the flexible stretch belt pass through the corresponding two limit columns and are fixedly connected to the shape memory temperature-induced shrinkage material and the flexible photonic crystal.

The flexible photonic crystal includes a vertically arranged flexible polymer substrate, a microstructure array is arranged on the outer surface of the flexible polymer substrate, the photonic crystal is encapsulated inside the microstructure array, the bottom surface of the flexible polymer substrate is fixedly connected to the bottom surface of the insulation shell, and the inner surface of the flexible polymer substrate is fixedly connected to the other end of the flexible stretch band.

The relationship between the diffraction wavelength λ and the lattice spacing d of the flexible photonic crystal is specifically shown in the following formula (1):

(1);

In formula (1), is the lattice adjustment coefficient of the flexible photonic crystal under bending conditions;/> is the contact area reduction factor of the flexible polymer substrate; /> is the ambient temperature coefficient; /> is the average effective transmittance index of the flexible photonic crystal; /> is the incident angle, is a constant; m is the diffraction order; /> Parting geometry adjustment coefficients for flexible polymer substrates.

The lattice adjustment coefficient There is a positive linear relationship between the strain σ and the strain σ. The calculation formula of the strain σ is shown in the following formula (2):

(2);

In formula (2), is the thermal expansion coefficient of the photonic crystal; /> is the contact area reduction factor of the flexible polymer substrate; is the bending reduction coefficient of the flexible polymer substrate; /> is the ambient temperature difference.

Advantages of the present invention:

(1) The present invention does not collect and transmit temperature information through temperature sensors, which avoids the laying of cables in the model soil. Shape memory temperature-induced shrinkage materials are used to drive the flexible photonic crystals to deform. The deformation causes the diffraction color of the flexible photonic crystals to change. The temperature and the corresponding color are calculated and calibrated before the temperature is collected. The temperature inside the hypergravity model can be accurately grasped through the color, and the temperature display is intuitive and accurate.

(2) The shape memory temperature-induced shrinkage material in the temperature-sensitive mechanism of the present invention is a shape memory temperature-induced shrinkage material made of shape memory alloy or carbon nanotube/liquid crystal elastomer (CNT-LCEs material), which has the characteristics of temperature recovery and deformation recovery, so that the present invention can be used repeatedly to realize the collection and display of different temperatures.

(3) The temperature sensitive mechanism of the present invention is provided with a positioning column and an elastic limiting belt for positioning the shape memory temperature-induced shrinkage material, which limits the position of the shape memory temperature-induced shrinkage material in the heat-conducting shell without affecting the shrinkage and deformation of the shape memory temperature-induced shrinkage material, so that the tension distribution is uniform when the shape memory temperature-induced shrinkage material shrinks.

(4) The present invention sets a limiting guide plate in the heat-insulating conduit to prevent the flexible stretch belt from undergoing radial displacement under the drive of the shape memory thermo-shrinkage material, which affects the calculation of the stretching length. By setting the limiting guide plate, the flexible stretch belt is set into a serpentine bending structure, thereby avoiding the deformation of the flexible stretch belt and further ensuring the accuracy of the deformation transfer of the shape memory thermo-shrinkage material.

(5) The present invention is an integrated packaging structure, which is convenient for rapid deployment in the soil of a supergravity geotechnical model and realizes temperature collection through the color change of the flexible photonic crystal.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of the internal structure of the temperature sensitive mechanism of the present invention.

FIG. 3 is a schematic diagram of the internal structure of the luminous visual mechanism of the present invention.

FIG. 4 is a schematic diagram of the structure of a scaled model of a high-speed railway foundation.

Figure numerals: 1-temperature sensitive mechanism, 2-heat-conducting stretching mechanism, 3-luminous visual mechanism, 4-limiting column, 11-heat-conducting shell, 12-shape memory temperature-induced shrinkage material, 13-positioning column, 14-elastic limiting belt, 21-thermal insulation pipe 21, 22-limiting guide plate, 23-flexible stretching belt, 31-thermal insulation shell, 32-thrust column, 33-support block, 34-flexible polymer substrate, 35-microstructure array, 36-vertical guide plate, 5-high-speed railway subgrade scale model, 6-low temperature model box, 7-visual window, 8-hydraulic vibration equipment.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

See Figure 1, a temperature sensing device suitable for use in ultra-gravity centrifugal environments, comprising a temperature sensitive mechanism 1, a heat-conducting stretching mechanism 2, and a light-emitting visual mechanism 3;

As shown in FIG2 , the temperature sensitive mechanism 1 includes a heat-conducting shell 11 and a shape memory temperature-induced shrinkage material 12, and the shape memory temperature-induced shrinkage material 12 is made of shape memory alloy or carbon nanotube/liquid crystal elastomer; the inner cavity of the heat-conducting shell 11 is a circular cavity, and the shape memory temperature-induced shrinkage material 12 is a circular plate-like structure. A circle of positioning columns 13 is fixed on the annular inner wall of the heat-conducting shell 11, and the shape memory temperature-induced shrinkage material 12 is arranged in the heat-conducting shell 11 and is in thermal contact with the heat-conducting shell 11. A circle of positioning columns 13 is evenly distributed on the periphery of the shape memory temperature-induced shrinkage material 12, and each positioning column 13 is fixedly connected to the shape memory temperature-induced shrinkage material 12 through a corresponding elastic limiting belt 14, so that the shape memory temperature-induced shrinkage material 12 is positioned in the heat-conducting shell 11;

As shown in Figures 2 and 3, the heat-conducting stretching mechanism 2 includes an insulating pipe 21, a row of limiting guide plates 22 and a flexible stretching belt 23. One end of the insulating pipe 21 is integrally connected with the heat-conducting shell 11 and the two are interconnected. The flexible stretching belt 23 uses a high-temperature resistant insulating belt, which basically does not deform when heated. One end of the flexible stretching belt 23 is fixedly connected to the shape memory temperature-induced shrinkage material 12; a row of limiting guide plates 22 are arranged parallel to each other along the axial direction of the insulating pipe 21. Among two adjacent limiting guide plates 22, the top end of one limiting guide plate 22 is fixedly connected to the insulating pipe 21, and a guide gap is left between its bottom end and the insulating pipe 21. The bottom end of the other limiting guide plate 22 is fixedly connected to the insulating pipe 21, and a guide gap is left between its top end and the insulating pipe 21. The flexible stretching belt 23 passes through the guide gap between each limiting guide plate 22 and the insulating pipe 21 in turn, so that the flexible stretching belt 23 forms a serpentine bending conduction structure in the insulating pipe 21;

As shown in FIG3 , the luminous visual mechanism 3 includes a heat-insulating shell 31, eight thrust columns 32, a row of support blocks 33 and a flexible photonic crystal, wherein the flexible photonic crystal includes a vertically arranged flexible polymer substrate 34, and a microstructure array 35 is arranged on the outer surface of the flexible polymer substrate 34, and a photonic crystal is encapsulated inside the microstructure array 35; the other end of the heat-insulating conduit 21 is integrally connected with the heat-insulating shell 31 and the two are interconnected, and a vertical guide plate 36 is fixedly arranged at the connection port between the heat-insulating shell 31 and the heat-insulating conduit 21, and the eight thrust columns 32 are arranged horizontally and present an upper and lower row structure, and the outer end of each thrust column 32 is fixed to the heat-insulating shell The heat-insulating shell 31 or the vertical guide plate 36, a row of support blocks 33 are fixedly arranged on the bottom surface of the heat-insulating shell 31, the bottom surface of the flexible polymer substrate 34 is fixedly connected to the row of support blocks 33, the other end of the flexible stretching belt 23 passes through the vertical guide plate 36 and is fixedly connected to the inner surface of the flexible polymer substrate 34, the outer surface of the flexible photonic crystal faces the heat-insulating shell 31, the portion of the heat-insulating shell 31 relative to the outer surface of the flexible photonic crystal is a colorless and transparent structure, the inner ends of the eight thrust columns 32 are all horizontally facing the inner surface of the flexible polymer substrate 34, and the four thrust columns 32 in each row are evenly distributed along the horizontal axis of the flexible polymer substrate 34;

Among them, two vertically arranged limit columns 4 are provided at the position adjacent to the thermal insulation pipe 21 in the heat-conducting shell 11 and at the position adjacent to the thermal insulation pipe 21 in the heat-insulating shell 31, and the two ends of the flexible stretch band 23 respectively pass through the corresponding two limit columns 4 and are fixedly connected to the inner surface of the shape memory thermosensitive shrinkage material 12 and the flexible photonic crystal flexible polymer substrate 34.

When the temperature changes, the shape memory thermo-shrinkage material 12 shrinks, and the shape memory thermo-shrinkage material 12 pulls the flexible photonic crystal through the flexible stretch band 23. Since the bottom surface of the flexible polymer substrate 34 of the flexible photonic crystal is fixed on the thermal insulation shell 31, the flexible photonic crystal tilts toward the flexible stretch band 23. Due to the limiting effect of the thrust column 32, the outer surface of the part of the flexible photonic crystal that is limited by the thrust column 32 presents a convex structure, and the outer surface of the part that is not limited by the thrust column 32 presents a concave structure, which changes the lattice spacing inside the flexible photonic crystal and changes the diffraction wavelength of the flexible photonic crystal, thereby presenting a color change phenomenon.

The relationship between the diffraction wavelength λ of the flexible photonic crystal and the lattice spacing d is shown in the following formula (1):

(1);

In formula (1), is the lattice adjustment coefficient of the flexible photonic crystal under bending conditions;/> is the contact area reduction factor of the flexible polymer substrate; /> is the ambient temperature coefficient; /> is the average effective transmittance index of the flexible photonic crystal; /> is the incident angle, is a constant; m is the diffraction order; /> Parting geometry adjustment coefficients for flexible polymer substrates.

Lattice adjustment coefficient There is a positive linear relationship between the strain σ and the strain σ. The calculation formula of the strain σ is shown in the following formula (2):

(2);

In formula (2), is the thermal expansion coefficient of the photonic crystal; /> is the contact area reduction factor of the flexible polymer substrate; is the bending reduction coefficient of the flexible polymer substrate; /> is the ambient temperature difference.

Supergravity high-speed railway scaled model test: The construction of high-speed railways in seasonally frozen areas has stringent requirements on the smoothness of the tracks during the freeze-thaw cycle. Since the full-scale roadbed freeze-thaw test requires a lot of financial and material resources, the use of scaled high-speed railway freeze-thaw tests has great advantages in time and money.

As shown in Figure 4, the high-speed railway subgrade scale model 5 is placed in a low-temperature model box 6 and placed inside the basket 6 of the centrifuge; a visual window 7 is provided on one side of the low-temperature model box 6, the temperature sensitive mechanism 1 and the heat conductive stretching mechanism 2 of the temperature sensing device are buried in the subgrade of the high-speed railway subgrade scale model 5, the luminous visual mechanism 3 is located outside the subgrade and adjacent to the visual window 7, the outer surface of the flexible photonic crystal faces the visual window 7, and the hydraulic excitation device 8 on the high-speed railway subgrade scale model 5 is excited to simulate the operation process of the high-speed railway. A collection camera facing the luminous visual mechanism 3 is provided outside the low-temperature model box 6, and the color change of the luminous visual mechanism 3 is recorded by video imaging, so that the temperature change inside the subgrade can be known.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (11)

1. A temperature sensing device suitable for use in ultra-gravity centrifugal environments, characterized in that it includes a temperature sensitive mechanism, a heat-conducting stretching mechanism, and a light-emitting visual mechanism; The temperature sensitive mechanism comprises a heat-conducting shell and a shape-memory temperature-induced shrinkage material, wherein the shape-memory temperature-induced shrinkage material is positioned in the heat-conducting shell and in heat-conducting contact with the heat-conducting shell; The heat-conducting stretching mechanism comprises a heat-insulating conduit and a flexible stretching belt, one end of the heat-insulating conduit is integrally connected to the heat-conducting housing and the two are interconnected, the flexible stretching belt is arranged in the heat-insulating conduit, and one end of the flexible stretching belt is fixedly connected to the shape memory temperature-induced shrinkage material; The luminous visual mechanism includes an insulating shell, a plurality of thrust columns and a flexible photonic crystal. The other end of the insulating conduit is integrally connected to the insulating shell and the two are interconnected. The flexible photonic crystal is vertically arranged in the insulating shell and the bottom surface is fixedly connected to the bottom surface of the insulating shell. The inner surface of the flexible photonic crystal is fixedly connected to the other end of the flexible stretch band. The outer surface of the flexible photonic crystal faces the insulating shell, and the portion of the insulating shell relative to the outer surface of the flexible photonic crystal is a colorless and transparent structure. A plurality of thrust columns are horizontally arranged in the insulating shell, the outer end of each thrust column is fixed to the insulating shell, and the inner ends of the plurality of thrust columns are horizontally facing the inner surface of the flexible photonic crystal and are evenly distributed along the horizontal axis of the flexible photonic crystal. When the temperature changes, the shape memory temperature-induced shrinkage material shrinks, and the shape memory temperature-induced shrinkage material pulls the flexible photonic crystal through the flexible stretch band. Since the bottom surface of the flexible photonic crystal is fixed on the thermal insulation shell, the flexible photonic crystal tilts toward the flexible stretch band. Due to the limiting effect of multiple thrust columns, the outer surface of the part of the flexible photonic crystal that is limited by the thrust column presents a convex structure, and the outer surface of the part that is not limited by the thrust column presents a concave structure, which changes the lattice spacing inside the flexible photonic crystal and changes the diffraction wavelength of the flexible photonic crystal, thereby presenting a color change phenomenon. 2. A temperature sensing device suitable for use in an ultra-gravity centrifugal environment according to claim 1, characterized in that: the inner cavity of the heat-conducting shell is a circular cavity, the shape memory temperature-induced shrinkage material is a circular plate-shaped structure, a circle of positioning columns is fixed on the annular inner wall of the heat-conducting shell, the shape memory temperature-induced shrinkage material is arranged in the heat-conducting shell and is in thermal contact with the heat-conducting shell, a circle of positioning columns is evenly distributed on the periphery of the shape memory temperature-induced shrinkage material, each positioning column is fixedly connected to the shape memory temperature-induced shrinkage material through a corresponding elastic limiting band, so that the shape memory temperature-induced shrinkage material is positioned in the heat-conducting shell. 3. A temperature sensing device suitable for use in ultra-gravity centrifugal environments according to claim 1, characterized in that the shape memory temperature-induced shrinkage material is made of shape memory alloy or carbon nanotube/liquid crystal elastomer. 4. According to claim 1, a temperature sensing device suitable for use in an ultra-gravity centrifugal environment is characterized in that: a row of limiting guide plates are arranged inside and along the axial direction of the insulating tube, and the flexible stretch belt passes through the row of limiting guide plates in sequence, thereby limiting the radial position of the flexible stretch belt inside the insulating tube. 5. A temperature sensing device suitable for use in an ultra-gravity centrifugal environment according to claim 4, characterized in that: the row of limit guide plates are arranged parallel to each other along the axial direction of the insulation tube, and among two adjacent limit guide plates, the top end of one limit guide plate is fixedly connected to the insulation tube, and a guide gap is left between its bottom end and the insulation tube, and the bottom end of the other limit guide plate is fixedly connected to the insulation tube, and a guide gap is left between its top end and the insulation tube, and the flexible stretch belt passes through the guide gap between each limit guide plate and the insulation tube in turn, so that the flexible stretch belt forms a serpentine bending conduction structure in the insulation tube. 6. A temperature sensing device suitable for use in ultra-gravity centrifugal environments according to claim 1, characterized in that the flexible stretch belt is a high temperature resistant insulation belt. 7. A temperature sensing device suitable for use in an ultra-gravity centrifugal environment according to claim 1, characterized in that a row of support blocks are fixedly arranged on the bottom surface of the thermal insulation shell, and the bottom surface of the flexible photonic crystal is fixedly connected to the row of support blocks. 8. According to claim 1, a temperature sensing device suitable for use in an ultra-gravity centrifugal environment is characterized in that two vertically arranged limit columns are arranged at a position adjacent to the thermal insulation pipe in the heat-conducting shell and at a position adjacent to the thermal insulation pipe in the heat-insulating shell, and the two ends of the flexible stretch belt are respectively passed through between the corresponding two limit columns and fixedly connected to the shape memory thermo-shrinkage material and the flexible photonic crystal. 9. A temperature sensing device suitable for use in an ultra-gravity centrifugal environment according to claim 1, characterized in that: the flexible photonic crystal includes a vertically arranged flexible polymer substrate, a microstructure array is arranged on the outer surface of the flexible polymer substrate, and the photonic crystal is encapsulated inside the microstructure array, the bottom surface of the flexible polymer substrate is fixedly connected to the bottom surface of the insulating shell, and the inner surface of the flexible polymer substrate is fixedly connected to the other end of the flexible stretch band. 10. A temperature sensing device suitable for use in ultra-gravity centrifugal environments according to claim 9, characterized in that: the relationship between the diffraction wavelength λ of the flexible photonic crystal and the lattice spacing d is specifically shown in the following formula (1): (1); In formula (1), is the lattice adjustment coefficient of the flexible photonic crystal under bending conditions;/> is the contact area reduction factor of the flexible polymer substrate; /> is the ambient temperature coefficient; /> is the average effective transmittance index of the flexible photonic crystal; /> is the incident angle, is a constant; m is the diffraction order; /> Parting geometry adjustment coefficients for flexible polymer substrates. 11. A temperature sensing device suitable for use in ultra-gravity centrifugal environments according to claim 10, characterized in that: the lattice adjustment coefficient There is a positive linear relationship between the strain σ and the strain σ. The calculation formula of the strain σ is shown in the following formula (2): (2); In formula (2), is the thermal expansion coefficient of the photonic crystal; /> is the contact area reduction factor of the flexible polymer substrate; /> is the bending reduction coefficient of the flexible polymer substrate; /> is the ambient temperature difference.