High-thrust vibration table double-layer driving coil temperature detection method and system

Abstract

The invention discloses a high-thrust vibration table double-layer driving coil temperature detection method and system, and the method comprises the steps: arranging thermocouple temperature sensors at different positions of an inner layer and an outer layer of a double-layer driving coil, collecting the temperature data of each point in real time, and comparing the temperature change slopes of each position on the inner layer driving coil and a starting point position; and respectively estimating the temperature of each position on the inner-layer driving coil by adopting a fitting function of the fixed slope and the variable slope. On the basis, the difference between the temperature performance of the inner layer and the temperature performance of the outer layer is further judged through the temperature of a water outlet in the outer-layer driving coil, differential correction is conducted on the temperature distribution situation of the outer layer according to the difference situation of the inner layer and the outer layer, and temperature distribution of the outer-layer driving coil is obtained by combining the temperature distribution situation of the inner-layer driving coil. The device is simple in structure, the temperature change condition of the double-layer driving coil of the high-thrust vibrating table can be comprehensively and accurately detected online in real time, the operation state of the moving coil of the high-thrust vibrating table is effectively mastered, and the service life of the moving coil of the vibrating table is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of vibration platforms, and in particular to a temperature detection method and system for a double-layer drive coil of a large-thrust vibration platform. Background Art

[0002] In electric vibration table equipment, double-layer drive coils are used to a certain extent because of their advantages such as high output and reduced amplifier drive voltage. The drive coil consists of two layers of inner and outer coils. This structure can increase the number of turns and inductance of the coil in a limited space, thereby increasing the magnetic field strength, providing a stronger driving force for the vibration table, and generating greater vibration acceleration. Since the drive coil generates heat during operation, excessive temperature will affect the performance and life of the coil, and even cause equipment failure. Therefore, it is necessary to monitor the temperature of the inner and outer coils in real time in order to detect temperature abnormalities in a timely manner and take corresponding heat dissipation measures. However, there are currently several deficiencies in the temperature monitoring of double-layer drive coils:

[0003] 1. Most existing temperature monitoring technologies can only obtain the temperature information of a local position of the coil, and cannot well reflect the temperature distribution of the entire double-layer drive coil. Especially when local overheating occurs, these local high-temperature points may be ignored, resulting in a misjudgment of the coil temperature status.

[0004] 2. Due to the complexity of the double-layer drive coil structure, the inner and outer layers of the drive coil have different temperatures due to heat dissipation factors. It is difficult for existing temperature monitoring technology to capture this temperature difference, making it impossible to achieve effective temperature monitoring at the same time. Summary of the invention

[0005] In response to the above technical problems, the present invention proposes a temperature detection method and system for a double-layer drive coil of a high-thrust vibration platform. The method can better obtain the overall temperature condition of the double-layer drive coil, thereby accurately evaluating the working status of the coil.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] A temperature detection method for a double-layer drive coil of a large-thrust vibration platform, wherein both inner and outer layers of the double-layer drive coil adopt a cooling structure with water inlet at both ends and water outlet in the middle, comprising the following steps:

[0008] S1. Starting from the water inlet below the inner driving coil, n temperature sensors are arranged in sequence along the winding direction of the inner coil and numbered in sequence. The first temperature sensor is located at the water inlet below the inner driving coil, and the nth temperature sensor is located at the water outlet of the inner driving coil. The angle coordinate of the i-th temperature sensor relative to the starting point of the inner driving coil along the winding direction of the coil is α. i, the measured value of the i-th temperature sensor is T i , where i = 1, 2, L, n;

[0009] The water inlet below the outer layer driving coil is taken as the starting point, a temperature sensor is arranged at the water inlet below the outer layer driving coil and is recorded as the n+1th temperature sensor, and a temperature sensor is arranged at the water outlet of the outer layer driving coil and is recorded as the n+2th temperature sensor. The angle coordinates of the n+1th temperature sensor and the n+2th temperature sensor relative to the starting point of the outer layer driving coil along the winding direction of the outer layer coil are respectively recorded as α n+1 and α n+2 , the measured values ​​of the n+1th temperature sensor and the n+2th temperature sensor are respectively recorded as T n+1 and T n+2 ;

[0010] S2. Using the measured value of the inner layer driving coil temperature sensor, calculate the temperature change slope of the measured values ​​of different temperature sensors relative to the measured value of the first temperature sensor, and the temperature change slope k of the jth temperature sensor relative to the first temperature sensor. j The calculation formula is:

[0011]

[0012] Where: j = 2, 3, L, n;

[0013] Calculate the maximum temperature change slope k max , minimum temperature change slope k min , the calculation formula is:

[0014]

[0015] S3. Estimate the temperature distribution T(α) of the inner layer drive coil from the lower water inlet to the water outlet, where α represents the angle coordinate from the starting point of the inner layer drive coil along the winding direction of the inner layer coil, and T(α) represents the temperature value of the inner layer drive coil corresponding to the angle coordinate α; δ is the allowable temperature change slope error, calculated according to k max -k min The value range of T(α) is as follows:

[0016] If 0<k max -k min <δ, combined with the value measured by the temperature sensor of the inner driving coil, T(α) is estimated by fitting a linear function with a fixed slope;

[0017] If k max -k min≥δ, combined with the value measured by the temperature sensor of the inner driving coil, T(α) is estimated by fitting a linear function whose slope changes with the angle coordinate of the inner coil winding direction;

[0018] S4. Using the symmetry of the water inlet at both ends and the water outlet in the middle, the temperature distribution T of the inner layer driving coil from the lower water inlet to the upper water inlet is obtained. 内 (α), which is expressed as:

[0019]

[0020] S5, record the temperature distribution of the outer layer drive coil from the lower water inlet to the upper water inlet as T 外 (α 外 ), where: α 外 It represents the angle coordinate from the starting point of the outer driving coil along the winding direction of the outer coil, T 外 (α 外 ) represents the angle coordinate α 外 The temperature value of the outer layer driving coil corresponding to the location; T min is the low temperature difference threshold, according to the temperature measurement value T at the water outlet of the outer driving coil n+2 and the temperature measurement value T at the outlet of the inner driving coil n The relationship between T 外 (α 外 ) is estimated, which can be divided into the following two cases:

[0021] If |T n+2 -T n |≤T min , the temperature distribution of the inner layer driving coil from the lower water inlet to the upper water inlet is used to approximate the temperature distribution of the outer layer driving coil, that is, T 外 (α 外 )=T 内 (α 外 );

[0022] If |T n+2 -T n |>T min , using random α 外 The correction function η(α 外 ) The temperature distribution of the inner layer driving coil is corrected to obtain the temperature distribution of the outer layer driving coil, that is, T 外 (α 外 )=η(α 外 )T 内 (α 外 ).

[0023] In an optional embodiment, in step S3, when kmax -k min When ≥δ, the temperature distribution T(α) of the inner layer driving coil from the lower water inlet to the water outlet is expressed as

[0024] T(α)=k(α)α+β

[0025] Where: β is the reference temperature value and β = T1, k(α) is the temperature change slope function of the inner layer drive coil at different angle coordinates α relative to the first temperature sensor, k(α) is calculated by (α j ,k j ) j＝2,3,L,n The n-1 angle coordinate-temperature change slope data series are obtained by linear fitting.

[0026] In an optional embodiment, in step S5, 外 The correction function η(α 外 ) calculation process includes the following steps:

[0027] S51, let λ1 be the first temperature ratio, λ2 be the second temperature ratio, and the calculation formulas of λ1 and λ2 are:

[0028]

[0029] S52. Define T max is the high temperature difference threshold, according to |T n+2 -T n |With T max The relationship between values ​​can be divided into two cases:

[0030] If |T n+2 -T n |≤T max , with α 外 Correction function for changes

[0031] If |T n+2 -T n |>T max , with α 外 Correction function for changes

[0032] Furthermore, the temperature sensor is a thermocouple temperature sensor.

[0033] Furthermore, the n temperature sensors on the inner driving coil are arranged at equal distances.

[0034] Furthermore, the value range of the number n of the temperature sensors arranged on the inner driving coil is n≥5;

[0035] Furthermore, the allowable temperature change slope error δ has a value range of δ≤0.1;

[0036] Furthermore, the low temperature difference threshold T min The value range is 10℃~20℃, and the high temperature difference threshold T max The value range is 50℃~70℃.

[0037] The present invention further discloses a temperature detection system for a double-layer drive coil of a large-thrust vibration platform, comprising an inner-layer drive coil and an outer-layer drive coil with water inlets at both ends and water outlets in the middle. The inner-layer drive coil is provided with n temperature sensors arranged in sequence with a lower water inlet as a starting point and a middle water outlet as an end point. A temperature sensor is arranged at the lower water inlet and the middle water outlet of the outer-layer drive coil respectively. The plurality of temperature sensors are electrically connected to an external control processing module via data lines respectively. The external control processing module adopts the temperature detection method for the double-layer drive coil of a large-thrust vibration platform.

[0038] Beneficial effects:

[0039] 1. The present invention realizes the detection of the overall temperature of the inner and outer driving coils by arranging a limited number of temperature sensors on the inner and outer driving coils of the high-thrust vibration table, thus solving the problem that the traditional measurement method can only monitor the local area;

[0040] 2. The present invention takes into account that the temperature of the driving coil increases with the increase of the angle due to the heat generated by the operation of the vibration table. By comparing the temperature change slopes of various positions on the driving coil with the starting position, a function is used to obtain the relationship between the temperature change slopes of various positions, and then a fitting function with a variable slope is used to estimate the temperature of each position on the driving coil. Compared with the traditional linear fitting method, the overall temperature of the driving coil can be better obtained, thereby accurately evaluating the working state of the coil.

[0041] 3. The present invention first performs function fitting on the temperature of each point on the inner driving coil, determines the difference in temperature performance between the inner and outer layers through the temperature of the midpoint on the outer driving coil, fits the relationship between the inner and outer temperatures through different fitting functions, and then obtains the temperature fitting function of the outer driving coil based on the temperature fitting function of the inner driving coil, thereby reducing the number of outer temperature sensors arranged, avoiding repeated fitting of the temperature of the outer driving coil, and realizing real-time monitoring of the temperatures of the inner and outer driving coils of the vibration table. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 The present invention is a schematic diagram of the principle of the temperature detection method for the double-layer drive coil of a large-thrust vibration platform.

[0043] Figure 2Flowchart for estimating the temperature distribution function of each point on the inner driving coil.

[0044] Figure 3 Flow chart for estimating the temperature distribution function of each point on the outer driving coil. DETAILED DESCRIPTION

[0045] The technical solution of the present invention is further described in detail below in conjunction with specific embodiments and the accompanying drawings so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0046] A temperature detection method for a double-layer drive coil of a large-thrust vibration platform, wherein both inner and outer layers of the double-layer drive coil adopt a cooling structure with water inlet at both ends and water outlet in the middle, comprising the following steps:

[0047] S1. First, arrange the thermocouple temperature sensor. The specific arrangement is as follows:

[0048] Taking the water inlet below the inner driving coil as the starting point, n thermocouple temperature sensors are arranged in sequence in an equidistant manner along the winding direction of the inner coil and numbered in sequence. The first thermocouple temperature sensor is located at the water inlet below the inner driving coil, and the nth thermocouple temperature sensor is located at the water outlet of the inner driving coil. The angle coordinate of the i-th thermocouple temperature sensor relative to the starting point of the inner driving coil along the winding direction of the coil is α i , the measured value of the i-th thermocouple temperature sensor is T i , where i=1,2,L,n, and the value range of n is n≥5;

[0049] Taking the water inlet below the outer driving coil as the starting point, a thermocouple temperature sensor is arranged at the water inlet below the outer driving coil and is recorded as the n+1th thermocouple temperature sensor, and a thermocouple temperature sensor is arranged at the water outlet of the outer driving coil and is recorded as the n+2th thermocouple temperature sensor. The angle coordinates of the n+1th thermocouple temperature sensor and the n+2th thermocouple temperature sensor relative to the starting point of the outer driving coil along the winding direction of the outer coil are respectively recorded as α n+1 and α n+2 The measured values ​​of the n+1th thermocouple temperature sensor and the n+2th thermocouple temperature sensor are respectively recorded as T n+1 and T n+2 ;

[0050] S2. Using the measured value of the inner driving coil thermocouple temperature sensor, calculate the temperature change slope of the measured values ​​of different thermocouple temperature sensors relative to the measured value of the first thermocouple temperature sensor, the temperature change slope k of the jth thermocouple temperature sensor relative to the first thermocouple temperature sensor j The calculation formula is:

[0051]

[0052] Where: j = 2, 3, L, n;

[0053] Calculate the maximum temperature change slope k max , minimum temperature change slope k min , the calculation formula is:

[0054]

[0055] S3. Estimate the temperature distribution T(α) of the inner driving coil from the lower water inlet to the water outlet, where α represents the angle coordinate from the inner driving coil starting point along the inner coil winding direction, and T(α) represents the temperature value of the inner driving coil corresponding to the angle coordinate α; δ is the allowable temperature change slope error, and the value range of δ is δ≤0.1. Determine whether 0<k is satisfied at this moment. max -k min <δ, if satisfied, execute step S31, if not satisfied, execute step S32;

[0056] S31, combining the value measured by the thermocouple temperature sensor of the inner driving coil, and using a linear function fitting with a fixed slope to estimate T(α);

[0057] Step S32: when k max -k min When ≥δ, the temperature distribution T(α) of the inner layer driving coil from the lower water inlet to the water outlet is expressed as

[0058] T(α)=k(α)α+β

[0059] Where: β is the reference temperature value and β = T1, k(α) is the temperature change slope function of the inner layer drive coil at different angle coordinates α relative to the first thermocouple temperature sensor, k(α) is calculated by (α j ,k j ) j＝2,3,L,n The n-1 angle coordinate-temperature change slope data series are obtained by linear fitting.

[0060] It is understandable that when the difference between the maximum and minimum values ​​of the temperature change slope is large, using a linear function with a fixed slope for fitting estimation will lead to inaccurate results. Therefore, a linear function whose slope changes continuously with the angle coordinates rotated by the winding direction of the inner coil is used for fitting estimation, which has a better fitting effect.

[0061] S4. Using the symmetry of the water inlet at both ends and the water outlet in the middle, the temperature distribution T of the inner layer driving coil from the lower water inlet to the upper water inlet is obtained. 内 (α), which is expressed as:

[0062]

[0063] Taking into account the temperature difference between the inner and outer layers of the driving coil due to heat dissipation, the temperature measured at the water outlet of the outer driving coil is compared with the measured temperature T n+2 and the temperature measurement value T at the outlet of the inner driving coil n The relationship between the inner and outer layers of the driving coil is used to determine the temperature difference, and different methods are used to estimate the temperature of the outer driving coil.

[0064] Furthermore, when the temperature difference between the inner and outer layers of the driving coil is small, the temperature distribution of the inner layer driving coil from the lower water inlet to the upper water inlet is used to approximately replace the temperature distribution of the outer layer driving coil. When the temperature difference between the inner and outer layers of the driving coil is large, different correction functions are introduced to estimate the temperature distribution of the outer layer of the driving coil. The method includes S5 to S6, which are as follows:

[0065] S5, record the temperature distribution of the outer layer drive coil from the lower water inlet to the upper water inlet as T 外 (α 外 ), where: α 外 It represents the angle coordinate from the starting point of the outer driving coil along the winding direction of the outer coil, T 外 (α 外 ) represents the angle coordinate α 外 The temperature value of the outer layer driving coil corresponding to the location; T min is the low temperature difference threshold, T min The value range is 10℃~20℃;

[0066] If |T n+2 -T n |≤T min , the temperature distribution of the inner layer driving coil from the lower water inlet to the upper water inlet is used to approximate the temperature distribution of the outer layer driving coil, that is, T 外 (α 外 )=T 内 (α 外 ); if not satisfied |T n+2 -T n |≤T min , then execute step S6;

[0067] Step S6, λ1 is denoted as the first temperature ratio, λ2 is denoted as the second temperature ratio, and the calculation formulas of λ1 and λ2 are:

[0068]

[0069] Define T max is the high temperature difference threshold, η(α外 ) is as α 外 The correction function of the change, T max The value range is 50℃~70℃. If |T n+2 -T n |≤T max , then execute step S61, if not, then execute step S62;

[0070] Step S61: 外 Correction function for changes Temperature distribution of the outer driving coil from the lower water inlet to the water outlet T 外 (α 外 ) is:

[0071] T 外 (α 外 )=η(α 外 )T 内 (α 外 )

[0072] Step S62: 外 Correction function for changes Temperature distribution of the outer driving coil from the lower water inlet to the water outlet T 外 (α 外 ) is:

[0073] T 外 (α 外 )=η(α 外 )T 内 (α 外 )

[0074] The double-layer drive coil temperature estimation and fitting method proposed in the present invention realizes the detection of the overall temperature of the inner and outer drive coils by arranging a limited number of temperature sensors on the inner and outer drive coils of a high-thrust vibration platform, and solves the deficiency that the traditional measurement method can only monitor the local area; the temperature of each position on the inner drive coil is estimated by using a fitting function with a variable slope. Compared with the traditional linear fitting method, the overall temperature of the inner drive coil can be better obtained, thereby accurately evaluating the working state of the coil; the difference in temperature performance of the inner and outer layers is judged by the temperature of the midpoint on the outer drive coil, and the relationship between the inner and outer temperatures is fitted by different fitting functions, and then the temperature fitting function of the outer drive coil is obtained according to the temperature fitting function of the inner drive coil, which reduces the number of outer temperature sensors arranged, avoids repeated fitting of the temperature of the outer drive coil, and realizes real-time monitoring of the temperatures of the inner and outer drive coils of the vibration platform.

[0075] Based on the above improvements, the present invention can monitor the temperature changes of the double-layer drive coils of the large-thrust vibration table in real time, comprehensively and accurately, and effectively improve the stability and reliability of the vibration table operation.

[0076] The present invention further discloses a temperature detection system for a double-layer drive coil of a large-thrust vibration platform, comprising an inner-layer drive coil and an outer-layer drive coil with water inlets at both ends and water outlets in the middle. The inner-layer drive coil is arranged with n temperature sensors arranged in sequence in an equidistant manner with a lower water inlet as a starting point and a middle water outlet as an end point. A temperature sensor is arranged at the lower water inlet and the middle water outlet of the outer-layer drive coil respectively. The multiple temperature sensors are electrically connected to an external control processing module via data lines respectively. The external control processing module adopts the temperature detection method for the double-layer drive coil of a large-thrust vibration platform.

[0077] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Various changes that can be made within the knowledge scope of technicians in the relevant technical field without departing from the spirit of the present invention are all within the protection scope of the claims of the present invention.

Claims

1. A temperature detection method for a double-layer drive coil of a large-thrust vibration platform, wherein both inner and outer layers of the double-layer drive coil adopt a cooling structure with water inlet at both ends and water outlet in the middle, characterized in that: The following steps are involved: S1. Starting from the water inlet below the inner driving coil, n temperature sensors are arranged in sequence along the winding direction of the inner coil and numbered in sequence. The first temperature sensor is located at the water inlet below the inner driving coil, and the nth temperature sensor is located at the water outlet of the inner driving coil. The angle coordinate of the i-th temperature sensor relative to the starting point of the inner driving coil along the winding direction of the coil is α. i , the measured value of the i-th temperature sensor is T i , where i = 1, 2, L, n; The water inlet below the outer layer driving coil is taken as the starting point, a temperature sensor is arranged at the water inlet below the outer layer driving coil and is recorded as the n+1th temperature sensor, and a temperature sensor is arranged at the water outlet of the outer layer driving coil and is recorded as the n+2th temperature sensor. The angle coordinates of the n+1th temperature sensor and the n+2th temperature sensor relative to the starting point of the outer layer driving coil along the winding direction of the outer layer coil are respectively recorded as α n+1 and α n+2 , the measured values ​​of the n+1th temperature sensor and the n+2th temperature sensor are respectively recorded as T n+1 and T n+2 ; S2. Using the measured value of the inner layer driving coil temperature sensor, calculate the temperature change slope of the measured values ​​of different temperature sensors relative to the measured value of the first temperature sensor, and the temperature change slope k of the jth temperature sensor relative to the first temperature sensor. j The calculation formula is: Where: j = 2, 3, L, n; Calculate the maximum temperature change slope k max , minimum temperature change slope k min , the calculation formula is: S3. Estimate the temperature distribution T(α) of the inner layer drive coil from the lower water inlet to the water outlet, where α represents the angle coordinate from the starting point of the inner layer drive coil along the winding direction of the inner layer coil, and T(α) represents the temperature value of the inner layer drive coil corresponding to the angle coordinate α; δ is the allowable temperature change slope error, calculated according to k max -k min The value range of T(α) is as follows: If 0<k max -k min <δ, combined with the value measured by the temperature sensor of the inner driving coil, T(α) is estimated by fitting a linear function with a fixed slope; If k max -k min ≥δ, combined with the value measured by the temperature sensor of the inner driving coil, T(α) is estimated by fitting a linear function whose slope changes with the angle coordinate of the inner coil winding direction; S4. Using the symmetry of the water inlet at both ends and the water outlet in the middle, the temperature distribution T of the inner layer driving coil from the lower water inlet to the upper water inlet is obtained. 内 (α), which is expressed as: S5, record the temperature distribution of the outer layer drive coil from the lower water inlet to the upper water inlet as T 外 (α 外 ), where: α 外 It represents the angle coordinate from the starting point of the outer driving coil along the winding direction of the outer coil, T 外 (α 外 ) represents the angle coordinate α 外 The temperature value of the outer layer driving coil corresponding to the location; denoted by T min is the low temperature difference threshold, according to the temperature measurement value T at the water outlet of the outer driving coil n+2 and the temperature measurement value T at the outlet of the inner driving coil n The relationship between T 外 (α 外 ) is estimated, which can be divided into the following two cases: If |T n+2 -T n |≤T min , the temperature distribution of the inner layer driving coil from the lower water inlet to the upper water inlet is used to approximate the temperature distribution of the outer layer driving coil, that is, T 外 (α 外 )=T 内 (α 外 ); If |T n+2 -T n |>T min , using random α 外 The correction function η(α 外 ) The temperature distribution of the inner layer driving coil is corrected to obtain the temperature distribution of the outer layer driving coil, that is, T 外 (α 外 )=η(α 外 )T 内 (α 外 ).

2. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: In step S3, when k max -k min When ≥δ, the temperature distribution T(α) of the inner layer driving coil from the lower water inlet to the water outlet is expressed as T(α)=k(α)α+β Where: β is the reference temperature value and β = T1, k(α) is the temperature change slope function of the inner layer drive coil at different angle coordinates α relative to the first temperature sensor, k(α) is calculated by (α j ,k j ) j＝2,3,L,n The n-1 angle coordinate-temperature change slope data series are obtained by linear fitting.

3. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: In step S5, 外 The correction function η(α 外 ) calculation process includes the following steps: S51, let λ1 be the first temperature ratio, λ2 be the second temperature ratio, and the calculation formulas of λ1 and λ2 are: S52. Define T max is the high temperature difference threshold, according to |T n+2 -T n |With T max The relationship between values ​​can be divided into two cases: If |T n+2 -T n |≤T max , with α 外 Correction function for changes If |T n+2 -T n |>T max , with α 外 Correction function for changes 4. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: The temperature sensor is a thermocouple temperature sensor.

5. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: The n temperature sensors on the inner driving coil are arranged in an equidistant manner.

6. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: The value range of the number n of temperature sensors arranged on the inner driving coil is n≥5.

7. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: The value range of the allowable temperature change slope error δ is δ≤0.

1.

8. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: The low temperature difference threshold T min The value range is 10℃~20℃.

9. The temperature detection method of a double-layer drive coil of a high-thrust vibration platform according to claim 1 is characterized in that: The high temperature difference threshold T max The value range is 50℃~70℃.

10. A temperature detection system for a double-layer drive coil of a large-thrust vibration platform, comprising an inner drive coil and an outer drive coil with water inlet at both ends and water outlet in the middle, wherein n temperature sensors are arranged in sequence with the lower water inlet of the inner drive coil as the starting point and the middle water outlet as the end point, and a temperature sensor is arranged at the lower water inlet and the middle water outlet of the outer drive coil respectively, and the plurality of temperature sensors are electrically connected to an external control processing module through data lines, characterized in that: The external control processing module adopts a temperature detection method for a double-layer drive coil of a large-thrust vibration platform as described in any one of claims 1 to 9.

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