LU504165B1 - The detection device and method based on ultrasonic length measurement - Google Patents

The detection device and method based on ultrasonic length measurement Download PDF

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Publication number
LU504165B1
LU504165B1 LU504165A LU504165A LU504165B1 LU 504165 B1 LU504165 B1 LU 504165B1 LU 504165 A LU504165 A LU 504165A LU 504165 A LU504165 A LU 504165A LU 504165 B1 LU504165 B1 LU 504165B1
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LU
Luxembourg
Prior art keywords
preset
elongation length
correction coefficient
length
bolt
Prior art date
Application number
LU504165A
Other languages
French (fr)
Inventor
Yu Liu
Zhen Tian
Shihong Cheng
Hua Zhang
Yuezhen Tu
Shuai Yang
Zhiwei Xu
Shi Zhang
Shenglong Zhou
Gang Yu
Lin Ye
Shaofei Yao
Bin Feng
Jiulin Zhang
Chongkun Yang
Qijiang Wang
Yue Gao
Zhicai Chen
Yundong Cao
Yongbing Xiang
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Huaneng Renewables Corporation Ltd Yunnan Branch
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Publication of LU504165B1 publication Critical patent/LU504165B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/08—Protective devices, e.g. casings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
    • G01L5/246—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed using acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G01B17/04—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations for measuring the deformation in a solid, e.g. by vibrating string
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
    • G01B5/0011—Arrangements for eliminating or compensation of measuring errors due to temperature or weight
    • G01B5/0014—Arrangements for eliminating or compensation of measuring errors due to temperature or weight due to temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)

Abstract

The present invention relates to the technical field of the detection device, especially, relates to the detection device and method based on ultrasonic length measurement. Comprising: a data cable, a resistor and a protective sleeve; it further comprises: a detection unit, it is used to detect the working temperature T around the detection device; a computation unit, it is used to correct the elongation length L according to the ambient temperature T around the detection device. The present invention by adding a ceramic protective sleeve, the influence of the measuring ambient temperature on the measuring bolt elongation is reduced, it effectively reduces the workload of operators, improves work efficiency and data accuracy.

Description

The detection device and method based on ultrasonic length measurement
Technical field
The present invention relates to the technical field of the detection device, especially, relates to the detection device and method based on ultrasonic length measurement.
Background technology
Most of all kinds of the equipment are mainly bolted connections in modern industry, the bolt connection has a crucial relationship with the safety of equipment operation. The Hydraulic tool adopts the fastening process: torque control, torque angle control, yield limited control. In the yield proportional limit of the bolt, the larger the bolt elongation, the greater the fastening force of the bolt. The fastening force is greater, the connected equipment is more stable, it does not happen to slip, the bolt has no shear force, the bolt of itself is more safer, the corresponding equipment operation also safe. We prolong the equipment maintenance periods and reduce maintenance costs. One of the means of measuring bolt elongation by double-wave measurement technology of ultrasonic equipment; compared with the manual use of the micrometer screw, it has higher precision in measuring bolt elongation, the workload of personnel on site is reduced, and the micrometer screw reading error is reduced, the precision of the bolt pre-tightening force measurement is improved. For the later personnel in bolt maintenance work, they improve the work efficiency and provide evidence.
But in the existing technology, when measuring the bolt elongation, it will be affected by the ambient temperature, resulting in a large deviation in the test data, which is not conducive to the accuracy of the work; therefore, how to provide the detection device and the method on ultrasonic length measurement is an urgent technical problem for the technical person in the field to solve.
Summary of the invention
The purpose of the present invention provides the detection device and method based on ultrasonic length measurement, the present invention by adding a ceramic protective sleeve, the influence of the measuring ambient temperature on the measuring bolt elongation is reduced, it is applied to use the double-wave probe of ultrasonic equipment to measure the bolt elongation after the bolt fastening, it effectively reduces the workload of operators, and improves work efficiency and data accuracy. 7504765
In order to achieve the above purposes, the present invention provides the following technical solutions: the detection device based on ultrasonic length measurement, the detection device is used to detect the elongation length L of the bolt by ultrasonic, comprising: the data cable, the data cable is used to transmit temperature data; the resistor, the resistor is connected with the one end of the data cable; the protective sleeve, the protective sleeve is covered and disposed on the resistor; it further comprises: the detection unit, the detection unit is used to detect the working temperature T around the detection device; the computation unit, it is used to correct the elongation length L according to the ambient temperature T around the detection device.
In some examples of the present application, the computation unit is provided with a preset ambient temperature matrix KO and a preset bolt elongation length correction coefficient matrix
B, for the preset bolt elongation length correction coefficient matrix B, setting B (B1, B2, B3,
B4), wherein B1 is the first preset bolt elongation length correction coefficient, B2 is the second preset bolt elongation length correction coefficient, B3 is the third preset bolt elongation length correction coefficient, B4 is the fourth preset bolt elongation length correction coefficient, and 1<B1 <B2<B3 <B4<1.5; for the preset ambient temperature matrix KO, setting KO (K01, K02, K03, K04), wherein
KO1 is the first preset ambient temperature, KO2 is the second preset ambient temperature, K03 is the third preset ambient temperature, K04 is the fourth preset ambient temperature , and K01 <
K02 < K03 < K04; the computation unit is used to select the corresponding correction coefficient according to the relationship between T and the preset ambient temperature matrix KO to correct the elongation length L; when T<KO1, the first preset bolt elongation length correction coefficient B1 is selected to correct the elongation length L, and the corrected elongation length is L*B1; when K01< T < KO2, the first preset bolt elongation length correction coefficient B2 is selected to correct the elongation length L, and the corrected elongation length is L*B2; when K02< T <<KO03, the first preset bolt elongation length correction coefficient B3 is selected to correct the elongation length L, and the corrected elongation length is L*B3; when T <<KO04, the first preset bolt elongation length correction coefficient B4 is selected to correct the elongation length L, and the corrected elongation length is L*B4. LUS04165
In some examples of the present application, the detection unit is further used for detecting the temperature J of the bolt in real-time; the computation unit is further used for carrying out the secondary correction according to the temperature J of the bolt to the elongation length L; the computation unit is further provided with a preset the bolt temperature matrix GO and a preset elongation length of the secondary correction coefficient matrix C, for the preset elongation length of the secondary correction coefficient matrix C, setting C (C1, C2, C3, C4), wherein C1 is the secondary correction coefficient for the first preset elongation length, C2 is the secondary correction coefficient for the second preset elongation length, C3 is the secondary correction coefficient for the third preset elongation length, C4 is the secondary correction coefficient for the fourth preset elongation length, and 1<C1 <C2<C3<C4<1.2; for the preset bolt temperature matrix GO, setting GO (G01, G02, G03, G04), wherein GO1 is the first preset bolt temperature, GO2 is the second preset bolt temperature, GO3 is the third preset bolt temperature, G04 is the fourth preset bolt temperature , and GO1 < G02 < G03 < G04 <70°C, the computation unit is further used to select the corresponding the secondary correction coefficient according to the relationship between J and the preset bolt temperature matrix GO to carry out the secondary correction after the correction elongation length L; when J<<GO01, the secondary correction coefficient C1 for the first preset elongation length is selected to carry out the secondary correction after the correction elongation length L, and the corrected elongation length is L*B1*C1; when GO1< J << G02, the secondary correction coefficient C2 for the second preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B2*C2; when G02< J<G03, the secondary correction coefficient C3 for the third preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B3*C3; when GO3< J << G04, the secondary correction coefficient C4 for the fourth preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B4*C4.
In some examples of the present application, the computation unit is further used to to calculate the temperature difference value X according to the ambient temperature T around the detection device and the temperature J of the bolt; wherein X= |T-J|;
the computation unit is further provided with a preset temperature difference value matrlkt/504165
FO and preset three times correction coefficient matrix D for the elongation length, for the preset three times correction coefficient matrix D for the elongation length, setting D (D1, D2, D3, D4), wherein D1 is the three times correction coefficient for the first preset elongation length, D2 is the three times correction coefficient for the second preset elongation length, D3 is the three times correction coefficient for the third preset elongation length, D4 is the three times correction coefficient for the fourth preset elongation length, and 1<D1 <D2<D3 <D4<1.2; for the preset temperature difference value matrix FO, setting FO (FO1, F02, F03, F04), wherein the FO1 is the first preset temperature difference value, FO2 is the second preset temperature difference value, FO3 is the third preset temperature difference value, FO4 is the fourth preset temperature difference value, and FO1 <F02 < F03 < F04; the computation unit is further used to select the corresponding the three times correction coefficient according to the relationship between X and the preset temperature difference value matrix FO to carry out three times correction for the elongation length L after the secondary correction ; when X<FO01, the three times correction coefficient D1 for the first preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B1*C1*D1; when F01< X < F02, the three times correction coefficient D2 for the second preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B2*C2*D2; when F02< X<F03, the three times correction coefficient D3 for the third preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B3*C3*D3; when F03< X < F04, the three times correction coefficient D4 for the fourth preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B4*C4*D4.
In some examples of the present application, the resistor is connected with the protective sleeve through the epoxy resin; the resistor is a platinum thermal resistance, the protective sleeve is a ceramic protective sleeve.
In order to achieve the purposes, the present invention further provides the detection method based on ultrasonic length measurement, it is applied to the detection device based on ultrasonic length measurement, comprising:
the elongation length L of the bolt is detected by the ultrasonic; LUS04165 the detection device is detected to the ambient temperature T in the around; the elongation length L is carried out to correct in accordance with the ambient temperature
T around the detection device. 5 In some examples of the present application, firstly, setting the preset ambient temperature matrix KO and the preset bolt elongation length correction coefficient matrix B, for the preset bolt elongation length correction coefficient matrix B, setting B (B1, B2, B3, B4), wherein B1 is the first preset bolt elongation length correction coefficient, B2 is the second preset bolt elongation length correction coefficient, B3 is the third preset bolt elongation length correction coefficient, B4 is the fourth preset bolt elongation length correction coefficient, and 1<B1 <B2 <B3<B4<1.5; for the preset ambient temperature matrix KO, setting KO(KO1, K02, KO03, KO04), wherein
KO1 is the first preset ambient temperature, KO2 is the second preset ambient temperature, K03 is the third preset ambient temperature, K04 is the fourth preset ambient temperature , and K01 <
K02 < K03 <K04, the corresponding correction coefficient is selected to correct the elongation length L according to the relationship between T and the preset ambient temperature matrix KO; when T<KO1, the first preset bolt elongation length correction coefficient B1 is selected to correct the elongation length L, and the corrected elongation length is L*B1; when K01< T <<KO02, the first preset bolt elongation length correction coefficient B2 is selected to correct the elongation length L, and the corrected elongation length is L*B2; when K02< T <<KO03, the first preset bolt elongation length correction coefficient B3 is selected to correct the elongation length L, and the corrected elongation length is L*B3; when T<CKO04, the first preset bolt elongation length correction coefficient B4 is selected to correct the elongation length L, and the corrected elongation length is L*B4;
In some examples of the present application, it further comprises: detecting the temperature J of the bolt in real-time; the elongation length L is carried out the secondary correction according to the temperature
J of the bolt; firstly, setting the preset the bolt temperature matrix GO and the secondary correction coefficient matrix C for the preset elongation length, for the secondary correction coefficient matrix C for the preset elongation length, setting C (C1, C2, C3, C4), wherein C1 is the secondary correction coefficient for the first preset elongation length, C2 is the secondary correction coefficient for the second preset elongation length, C3 is the secondary correction coefficient for the third preset elongation length, C4 is the secondary correction coefficient fb/504165 the fourth preset elongation length, and 1 <<C1<<C2<<C3<<(C4<1.2; for the preset bolt temperature matrix GO, setting GO (G01, G02, G03, G04), wherein GO1 is the first preset bolt temperature, GO2 is the second preset bolt temperature, GO3 is the third preset bolt temperature, G04 is the fourth preset bolt temperature , and G01 < G02 < G03 < G04 <70°C; the corresponding secondary correction coefficient is selected to carry out the secondary correction after the correction elongation length L, according to the relationship between J and the preset bolt temperature matrix GO; when J<<GO01, the secondary correction coefficient C1 for the first preset elongation length is selected to carry out the secondary correction after the correction elongation length L, and the corrected elongation length is L*B1*C1; when GO1< J << G02, the secondary correction coefficient C2 for the second preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B2*C2; when G02< J<G03, the secondary correction coefficient C3 for the third preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B3*C3; when G03< J << G04, the secondary correction coefficient C4 for the fourth preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B4*C4.
In some examples of the present application, it further comprises: according to the ambient temperature T around the detection device and the temperature J of the bolt compute the temperature difference value X; wherein X= |T-J]; firstly, setting the preset temperature value matrix FO and the three times correction coefficient matrix D for the preset elongation length, for the three times correction coefficient matrix D for the preset elongation length, setting D (D1, D2, D3, D4), wherein D1 is the three times correction coefficient for the first preset elongation length, D2 is the three times correction coefficient for the second preset elongation length, D3 is three times correction coefficient for the third preset elongation length, D4 is three times correction coefficient for the fourth preset elongation length, and 1 <D1<<D2<<D3<<D4<(1.2; for the preset temperature difference value matrix FO, setting FO (FO1, F02, F03, F04), wherein the FO1 is the first preset temperature difference value, FO2 is the second preset temperature difference value, FO3 is the third preset temperature difference value, F04 is th&/504165 fourth preset temperature difference value, and FO1 < F02 < F03 <F04; the corresponding three times correction coefficient is selected to carried out the three times correction after the correction of the elongation length L, according to the relationship between
X and the preset temperature difference value matrix FO; when X<FO01, the three times correction coefficient D1 for the first preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B1*C1*D1; when F01< X < F02, the three times correction coefficient D2 for the second preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B2*C2*D2; when F02< X<F03, the three times correction coefficient D3 for the third preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B3*C3*D3; when F03< X < F04, the three times correction coefficient D4 for the fourth preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B4*C4*D4.
The present invention provides the detection device and method based on ultrasonic length measurement, compared with the existing technology, the beneficial effects are as follows:
The present invention by adding a ceramic protective sleeve to the platinum thermal resistance, it can reduce the influence of the measured ambient temperature; due to the thermal conductivity of the ceramic outer protective sleeve is much lower than the metal material, and the ceramic outer protective sleeve also has the characteristics of good thermal insulation, and the coefficient of linear expansion is relatively low, when the outside ambient temperature changes, it can well protect the platinum thermal resistance from the influence of outside temperature, it truly reflects the change in the temperature of the bolt itself; the detection device of the present invention has a simple structure, and practical and convenience, which can effectively reduce the workload of personal, improve the work efficiency and reduce the labor intensity of the operator.
Description of attached drawings
FIG 1 is a schematic diagram of the structure of the detection device based on ultrasonic length measurement in an example of the present invention;
FIG 2 is a functional block diagram of the control system of the detection device based on ultrasonic length measurement in an example of the present invention; 0506165
FIG 3 is a flow diagram of the detection method based on ultrasonic length measurement in an example of the present invention;
The numbers in Fig indicate: 101. data cable; 102. resistor, 103. protective sleeve; 104. epoxy resin; 105. detection unit; 106. computation unit.
Specific embodiments
The following is a further detailed description of the specific example of the invention, in conjunction with with the accompanying drawings and examples. The following examples are used to illustrate the present invention, and they cannot be used to limit the scope of the present invention.
In the application of the invention, it is important to understand that the terms "up", "middle", "up", "down", "front", "behind", etc. They indicated orientation or position relationships is based on the orientation or position relationship shown in the attached drawings, it is only to facilitate and simplify the description of this application, but it is not to indicate or imply that the device or element referred to must have a particular orientation, it should be constructed and operated in a particular orientation, and therefore it cannot be constructed as a limitation of this application.
The terms "first" and "second" is used only for descriptive purposes, and they can not be understood as indicating or implying the relative importance or implicitly indicating the number of technical features indicated. Thus, limited to the "first" and "second features can explicitly or implicitly include one or more of these features. In the description of this application, unless otherwise stated, "multiple" means two or more.
In the description of this application, it should be clarified that unless expressly specified and limited, the terms “installation”, “adjacent”, “connection” should be understood in a broad sense, for example, it can be a fixed connection, a removable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can also be directly connected or indirectly through an intermediate medium, which can be the connection inside the two elements. For these general technicians in this field, the specific meaning of the above terms in this application can be understood on a case-by-case basis.
In the existing technology, when measuring the bolt elongation length, it is affected by measuring ambient temperature, resulting a large deviation in the test data, it is not conductive to measurement accuracy the problem; therefore, the present invention aims to install a ceramic 904165 outer protective sleeve through the periphery of the temperature sensor probe of the ultrasonic elongation length measuring instrument, the influence of the measuring ambient temperature on the measuring bolt elongation is reduced, the measuring data deviation is decreased, the acquisition data precision is improved, and the work efficiency is improved.
Therefore, the present invention provides the detection device and method based on ultrasonic length measurement, by adding a ceramic protective sleeve, the influence of the measuring ambient temperature on the measuring bolt elongation is reduced,it is applied to use the double-wave probe of ultrasonic equipment to measure the bolt elongation after the bolt fastening, it effectively reduces the workload of operators, improves work efficiency and data accuracy.
Refer to FIG 1-2, the public embodiment of the present invention provides the detection device based on ultrasonic length measurement, the detection device is used to detect the elongation length L of the bolt by ultrasonic, comprising: the data cable 101, the data cable 101 is used to transmit temperature data; the resistor 102, the resistor 102 1s connected with the one end of the data cable 101; the protective sleeve 103, the protective sleeve 103 is covered and disposed on the resistor 102; it further comprises: the detection unit 105, the detection unit 105 is used to detect the working temperature T around the detection device; the computation unit 106, the computation unit 106 is used to correct the elongation length
L according to the ambient temperature T around the detection device.
In a specific example of the present application, the computation unit 106 is provided with a preset ambient temperature matrix KO and a preset bolt elongation length correction coefficient matrix B, for the preset bolt elongation length correction coefficient matrix B, setting B (B1, B2,
B3, B4), wherein B1 is the first preset bolt elongation length correction coefficient, B2 is the second preset bolt elongation length correction coefficient, B3 is the third preset bolt elongation length correction coefficient, B4 is the fourth preset bolt elongation length correction coefficient, and 1<B1<B2<B3 <B4<1.5; for the preset ambient temperature matrix KO, setting K0(K01, K02, K03, KO04), wherein
KO1 is the first preset ambient temperature, KO2 is the second preset ambient temperature, K03 is the third preset ambient temperature, K04 is the fourth preset ambient temperature, and KO1 <
K02 < K03 < K04; LU504165 the computation unit 106 is used to select the corresponding correction coefficient according to the relationship between T and the preset ambient temperature matrix KO to correct the elongation length L; when T<KO1, the first preset bolt elongation length correction coefficient B1 is selected to correct the elongation length L, and the corrected elongation length is L*B1; when K01< T < KO2, the first preset bolt elongation length correction coefficient B2 is selected to correct the elongation length L, and the corrected elongation length is L*B2; when K02< T <<KO03, the first preset bolt elongation length correction coefficient B3 is selected to correct the elongation length L, and the corrected elongation length is L*B3; when K03< T <<KO04 , the first preset bolt elongation length correction coefficient B4 is selected to correct the elongation length L, and the corrected elongation length is L*B4.
In a specific example of the present application, the detection unit 105 is further used for detecting the temperature J of the bolt in real-time; the computation unit 106 is further used for carrying out the secondary correction according to the temperature J of the bolt to the elongation length L; the computation unit 106 is further provided with a preset the bolt temperature matrix GO and a preset elongation length of the secondary correction coefficient matrix C, for the preset elongation length of the secondary correction coefficient matrix C, setting C (C1, C2, C3, C4), wherein C1 is the secondary correction coefficient for the first preset elongation length, C2 is the secondary correction coefficient for the second preset elongation length, C3 is the secondary correction coefficient for the third preset elongation length, C4 is the secondary correction coefficient for the fourth preset elongation length, and 1<C1 <C2<C3<C4<1.2; for the preset bolt temperature matrix GO, setting GO (G01, G02, G03, G04), wherein GO1 is the first preset bolt temperature, G02 is the second preset bolt temperature, G03 is the third preset bolt temperature, G04 is the fourth preset bolt temperature , and GO1 < G02 < G03 < G04 <70°C, the computation unit 106 is further used to select the corresponding the secondary correction coefficient according to the relationship between J and the preset bolt temperature matrix GO to carry out the secondary correction after the correction elongation length L; when J<<GO01, the secondary correction coefficient C1 for the first preset elongation length is selected to carry out the secondary correction after the correction elongation length L, and the corrected elongation length is L*B1*C1; when GO1< J << G02, the secondary correction coefficient C2 for the second preset elongation length is selected to carry out the secondary correction after the correction elongatid:504165 length L and the corrected elongation length is L*B2*C2; when G02< J<G03, the secondary correction coefficient C3 for the third preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B3*C3; when G03< J << G04, the secondary correction coefficient C4 for the fourth preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B4*C4.
In a specific example of the present application, the computation unit 106 is further used to to calculate the temperature difference value X according to the ambient temperature T around the detection device and the temperature J of the bolt; wherein X= |T-J|; the computation unit 106 is further provided with a preset temperature difference value matrix FO and preset three times correction coefficient matrix D for the elongation length, for the preset three times correction coefficient matrix D for the elongation length, setting D (D1, D2,
D3, D4), wherein D1 is the three times correction coefficient for the first preset elongation length,
D2 is the three times correction coefficient for the second preset elongation length, D3 is the three times correction coefficient for the third preset elongation length, D4 is the three times correction coefficient for the fourth preset elongation length, and 1<D1 <D2<D3 <D4<1 2; for the preset temperature difference value matrix FO, setting FO (FO1, F02, F03, F04), wherein the FO1 is the first preset temperature difference value, FO2 is the second preset temperature difference value, FO3 is the third preset temperature difference value, F04 is the fourth preset temperature difference value, and FO1 <F02 < F03 < F04; the computation unit 106 is further used to select the corresponding the three times correction coefficient according to the relationship between X and the preset temperature difference value matrix FO to carry out three times correction for the elongation length L after the secondary correction ; when X<FO01, the three times correction coefficient D1 for the first preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B1*C1*D1; when F01< X < F02, the three times correction coefficient D2 for the second preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B2*C2*D2; when F02< X<F03, the three times correction coefficient D3 for the third preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B3*C3*D3; LUS04165 when F03< X < F04, the three times correction coefficient D4 for the fourth preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B4*C4*D4.
In a specific example of the present application, the resistor 102 is connected with the protective sleeve 103 through the epoxy resin 104; the resistor 102 is a platinum thermal resistance 102, the protective sleeve 103 is a ceramic protective sleeve 103.
In order to achieve the purposes, refer to FIG 3, the present invention further provides the detection method based on ultrasonic length measurement, it is applied to the detection device based on ultrasonic length measurement, comprising: the elongation length L of the bolt is detected by the ultrasonic; the detection device is detected to the ambient temperature T in the around; the elongation length L is carried out to correct in accordance with the ambient temperature
T around the detection device.
In a specific example of the present application, firstly, setting the preset ambient temperature matrix KO and the preset bolt elongation length correction coefficient matrix B, for the preset bolt elongation length correction coefficient matrix B, setting B (B1, B2, B3, B4), wherein B1 is the first preset bolt elongation length correction coefficient, B2 is the second preset bolt elongation length correction coefficient, B3 is the third preset bolt elongation length correction coefficient, B4 is the fourth preset bolt elongation length correction coefficient, and 1 <B1<B2<B3<B4<1.5; for the preset ambient temperature matrix KO, setting KO(KO1, K02, KO03, KO04), wherein
KO1 is the first preset ambient temperature, KO2 is the second preset ambient temperature, K03 1s the third preset ambient temperature, K04 is the fourth preset ambient temperature, and KOI <
K02 < K03 < K04; the corresponding correction coefficient is selected to correct the elongation length L according to the relationship between T and the preset ambient temperature matrix KO; when T<KO1, the first preset bolt elongation length correction coefficient B1 is selected to correct the elongation length L, and the corrected elongation length is L*B1; when K01< T < KO2, the first preset bolt elongation length correction coefficient B2 is selected to correct the elongation length L, and the corrected elongation length is L*B2; when K02< T <<KO03, the first preset bolt elongation length correction coefficient B3 is selected to correct the elongation length L, and the corrected elongation length is L*B3;
when K03< T <<KO04 , the first preset bolt elongation length correction coefficient B4 9504165 selected to correct the elongation length L, and the corrected elongation length is L*B4.
In one specific example of the present application, it further comprises: detecting the temperature J of the bolt in real-time; the elongation length L is carried out the secondary correction according to the temperature
J of the bolt; firstly, setting the preset the bolt temperature matrix GO and the secondary correction coefficient matrix C for the preset elongation length, for the secondary correction coefficient matrix C for the preset elongation length, setting C (C1, C2, C3, C4), wherein C1 is the secondary correction coefficient for the first preset elongation length, C2 is the secondary correction coefficient for the second preset elongation length, C3 is the secondary correction coefficient for the third preset elongation length, C4 is the secondary correction coefficient for the fourth preset elongation length, and 1<<C1<<C2<<C3<<C4<1.2; for the preset bolt temperature matrix GO, setting GO (G01, G02, G03, G04), wherein GO1 is the first preset bolt temperature, GO2 is the second preset bolt temperature, GO3 is the third preset bolt temperature, G04 is the fourth preset bolt temperature , and GO1 < G02 < G03 < G04 <70°C, the corresponding secondary correction coefficient is selected to carry out the secondary correction after the correction elongation length L, according to the relationship between J and the preset bolt temperature matrix GO, when J<<GO01, the secondary correction coefficient C1 for the first preset elongation length is selected to carry out the secondary correction after the correction elongation length L, and the corrected elongation length is L*B1*C1; when GO1< J << G02, the secondary correction coefficient C2 for the second preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B2*C2; when G02< J<G03, the secondary correction coefficient C3 for the third preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B3*C3; when G03< J << G04, the secondary correction coefficient C4 for the fourth preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B4*C4.
In a specific example of the present application, it further comprises: according to the ambient temperature T around the detection device and the temperature J of the bolt compute the temperature difference value X; wherein X= |T-J]; LUS04165 firstly, setting the preset temperature value matrix FO and the three times correction coefficient matrix D for the preset elongation length, for the three times correction coefficient matrix D for the preset elongation length, setting D (D1, D2, D3, D4), wherein D1 is the three times correction coefficient for the first preset elongation length, D2 is the three times correction coefficient for the second preset elongation length, D3 is three times correction coefficient for the third preset elongation length, D4 is three times correction coefficient for the fourth preset elongation length, and 1<<D1<<D2<<D3<<D4<1.2; for the preset temperature difference value matrix FO, setting FO (FO1,F02, FO3, FO04), wherein the FO1 is the first preset temperature difference value, FO2 is the second preset temperature difference value, FO3 is the third preset temperature difference value, F04 is the fourth preset temperature difference value, and FO1 <F02 < F03 < F04; the corresponding three times correction coefficient is selected to carried out the three times correction after the correction of the elongation length L, according to the relationship between
X and the preset temperature difference value matrix FO; when X<FO01, the three times correction coefficient D1 for the first preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B1*C1*D1; when F01< X < F02, the three times correction coefficient D2 for the second preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B2*C2*D2; when F02< X<F03, the three times correction coefficient D3 for the third preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B3*C3*D3; when F03< X < F04, the three times correction coefficient D4 for the fourth preset elongation length is selected to carry out the three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B4*C4*D4.
In conclusion, the present invention by adding a ceramic protective sleeve to the platinum thermal resistance, it can reduce the influence of the measured ambient temperature; due to the thermal conductivity of the ceramic outer protective sleeve is much lower than the metal material, and the ceramic outer protective sleeve also has the characteristics of good thermal insulation, and the coefficient of linear expansion is relatively low; when the outside ambient temperature changes, it can well protect the platinum thermal resistance from the influence of outside temperature, it truly reflects the change in the temperature of the bolt itself; the detection device of the present invention has a simple structure, and practical and convenience, which c&504165 effectively reduce the workload of personal, improve the work efficiency and reduce the labor intensity of the operator.
The above description is only an example of the present invention, but it cannot be used to limit the scope of the present invention; any structural changes made according to the present invention, as long as the essence of the present invention is not lost, should be regarded as falling within the protection scope of the present invention.
The technicians in the technical field can clearly understand that for the convenience and simplicity of the description, the specific working process of the system described above and the relevant description, they can refer to the corresponding process in the example of the aforementioned method, which is not repeated here.
It should be clarified that the system provided by the above-mentioned examples are illustrated only by the division of the above-mentioned functional modules, in practical applications, the above-mentioned functions can be assigned to different functional modules according to needs, that is, the modules or steps in the example of the present invention can be decomposed or combined; for example, the modules of the above-mentioned example can be merged into one module, or further split into multiple sub-modules to complete all or part of the functions described above. for the names of the modules and steps involved in examples of the present invention, only to distinguish each module or step, and are not regarded as an improper limitation of the present invention.
These technicians in this field should be aware of the modules and method steps of each example described in conjunction with the examples disclosed in this paper, they can be realized by electronic hardware, computer software or a combination of the two, The programs corresponding to software modules and method steps can be placed in random access memory (RAM), memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, register, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the technical field. In order to clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of the examples have been described in general terms by function. Whether these functions are implemented in electronic hardware or in software that depends on the specific application and the design constraint of the technical solution. Technicians in this field can use different methods for each specific application to achieve the described functions, but this implementation should not be considered beyond the scope of the present invention.
The term “includes “or any other similar term is intended to cover non-exclusive inclusion, so that processes, methods, objects or equipment / devices that include a series of elements not only include those elements, but also include other elements that are not explicitly listed, 64504165 include elements inherent in these processes, methods, objects or equipment / devices.
So far, the technical solution of the present invention has been described in combination with the preferred example method shown in the attached diagram, however, it is easy for technicians in this field to understand that the protection scope of the present invention is obviously not limited to these specific example methods. Without deviating from the principle of the present invention, the technical personnel in the field can make equivalent changes or replacements to the relevant technical characteristics, and the technical solution after these changes or replacements will fall within the protection scope of the present invention.
The above description is only a preferred example of the present invention, and is not used to limit the protection scope of the present invention.

Claims (9)

CLAIMS LU504165
1. À detection device based on ultrasonic length measurement, it is characterized in that the detection device is used to detect the elongation length L of the bolt by ultrasonic, comprising: a data cable, the data cable is used to transmit temperature data; a resistor, the resistor is connected with the one end of the data cable; a protective sleeve, the protective sleeve is covered and disposed on the resistor; it further comprises: a detection unit, the detection unit is used to detect the working temperature T around the detection device; a computation unit, it is used to correct the elongation length L according to the ambient temperature T around the detection device.
2. The detection device based on ultrasonic length measurement according to claim 1, it is characterized in that: the computation unit is provided with a preset ambient temperature matrix KO and a preset bolt elongation length correction coefficient matrix B, for the preset bolt elongation length correction coefficient matrix B, setting B (B1, B2, B3, B4), wherein B1 is the first preset bolt elongation length correction coefficient, B2 is the second preset bolt elongation length correction coefficient, B3 is the third preset bolt elongation length correction coefficient, B4 is the fourth preset bolt elongation length correction coefficient, and 1<<B1<<B2<{B3<{B4<(1.5; for the preset ambient temperature matrix KO, setting KO(KO1, K02, KO03, KO04), wherein KO1 is the first preset ambient temperature, KO2 is the second preset ambient temperature, K03 is the third preset ambient temperature, K04 is the fourth preset ambient temperature , and K01 < K02 < K03 < K04; the computation unit is used to select the corresponding correction coefficient according to the relationship between T and the preset ambient temperature matrix KO to correct the elongation length L; when T<KO1, the first preset bolt elongation length correction coefficient B1 is selected to correct the elongation length L, and the corrected elongation length is L*B1; when K01< When T<KO02, the first preset bolt elongation length correction coefficient B2 is selected to correct the elongation length L, and the corrected elongation length is L*B2; when K02< When T<KO03, the first preset bolt elongation length correction coefficient B3 is selected to correct the elongation length L, and the corrected elongation length is L*B3;
when T<KO04, the first preset bolt elongation length correction coefficient B4 is selected 44504165 correct the elongation length L, and the corrected elongation length is L*B4.
3. The detection device based on ultrasonic length measurement according to claim 2, it 1s characterized in that: the detection unit is further used for detecting the temperature J of the bolt in real-time; the computation unit is further used for carrying out the secondary correction according to the temperature J of the bolt to the elongation length L; the computation unit is further provided with a preset the bolt temperature matrix GO and a preset elongation length of the secondary correction coefficient matrix C, for the preset elongation length of the secondary correction coefficient matrix C, setting C (C1, C2, C3, C4), wherein C1 is the secondary correction coefficient for the first preset elongation length, C2 is the secondary correction coefficient for the second preset elongation length, C3 is the secondary correction coefficient for the third preset elongation length, C4 is the secondary correction coefficient for the fourth preset elongation length, and 1<C1 <C2<C3<C4<1.2; for the preset bolt temperature matrix GO, setting GO (G01, G02, G03, G04), wherein GO1 is the first preset bolt temperature, GO2 is the second preset bolt temperature, GO3 is the third preset bolt temperature, G04 is the fourth preset bolt temperature , and GO1 < G02 < G03 < G04 <70°C; the computation unit is further used to select the corresponding the secondary correction coefficient according to the relationship between J and the preset bolt temperature matrix GO to carry out the secondary correction after the correction elongation length L; when J<<GO01, the secondary correction coefficient C1 for the first preset elongation length is selected to carry out the secondary correction after the correction elongation length L, and the corrected elongation length is L*B1*C1; when GO1< J < G02, the secondary correction coefficient C2 for the second preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B2*C2; when G02< J<G03, the secondary correction coefficient C3 for the third preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B3*C3; when G03< J << G04, the secondary correction coefficient C4 for the fourth preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B4*C4.
4. The detection device based on ultrasonic length measurement according to claim 3, it 4504165 characterized in that: the computation unit is further used to to calculate the temperature difference value X according to the ambient temperature T around the detection device and the temperature J of the bolt; wherein X= [T-J|; the computation unit is further provided with a preset temperature difference value matrix FO and preset three times correction coefficient matrix D for the elongation length, for the preset three times correction coefficient matrix D for the elongation length, setting D (D1, D2, D3, D4), wherein D1 is the three times correction coefficient for the first preset elongation length, D2 is the three times correction coefficient for the second preset elongation length, D3 is the three times correction coefficient for the third preset elongation length, D4 is the three times correction coefficient for the fourth preset elongation length, and 1<D1 <D2<D3 <D4<1.2; for the preset temperature difference value matrix FO, setting FO (FO1, F02, F03, F04), wherein the FO1 is the first preset temperature difference value, FO2 is the second preset temperature difference value, FO3 is the third preset temperature difference value, FO4 is the fourth preset temperature difference value, and FO1 <F02 < F03 < F04; the computation unit is further used to select the corresponding the three times correction coefficient according to the relationship between X and the preset temperature difference value matrix FO to carry out three times correction for the elongation length L after the secondary correction ; when X<FO01, the three times correction coefficient D1 for the first preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B1*C1*D1; when F01< X < F02, the three times correction coefficient D2 for the second preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B2*C2*D2; when F02< X<F03, the three times correction coefficient D3 for the third preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B3*C3*D3; when F03< X < F04, the three times correction coefficient D4 for the fourth preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B4*C4*D4.
5. The detection device based on ultrasonic length measurement according to claim 1, it is characterized in that: LUS04165 the resistor is connected with the protective sleeve through the epoxy resin; the resistor is a platinum thermal resistance, the protective sleeve is a ceramic protective sleeve.
6. The detection method based on ultrasonic length measurement, it is applied to the detection device based on ultrasonic length measurement according to any of the claims 1 to 5, it is characterized in that: the elongation length L of the bolt is detected by the ultrasonic; the detection device is detected to the ambient temperature T in the around; the elongation length L is carried out to correct in accordance with the ambient temperature T around the detection device.
7. The detection method based on ultrasonic length measurement according to claim 6, it is characterized in that: firstly, setting the preset ambient temperature matrix KO and the preset bolt elongation length correction coefficient matrix B, for the preset bolt elongation length correction coefficient matrix B, setting B (B1, B2, B3, B4), wherein B1 is the first preset bolt elongation length correction coefficient, B2 is the second preset bolt elongation length correction coefficient, B3 is the third preset bolt elongation length correction coefficient, B4 is the fourth preset bolt elongation length correction coefficient, and 1 <<B1<{B2<{B3<{B4<(1.5; for the preset ambient temperature matrix KO, setting KO(KO1, K02, KO03, KO04), wherein KO1 is the first preset ambient temperature, KO2 is the second preset ambient temperature, K03 is the third preset ambient temperature, K04 is the fourth preset ambient temperature , and K01 < K02 < K03 < K04; the corresponding correction coefficient is selected to correct the elongation length L according to the relationship between T and the preset ambient temperature matrix KO; when T<KO1, the first preset bolt elongation length correction coefficient B1 is selected to correct the elongation length L, and the corrected elongation length is L*B1; when K01< T < KO2, the first preset bolt elongation length correction coefficient B2 is selected to correct the elongation length L, and the corrected elongation length is L*B2; when K02< T <<KO03, the first preset bolt elongation length correction coefficient B3 is selected to correct the elongation length L, and the corrected elongation length is L*B3; when T<CKO04, the first preset bolt elongation length correction coefficient B4 is selected to correct the elongation length L, and the corrected elongation length is L*B4.
8. The detection method based on ultrasonic length measurement according to claim 7, it 14504165 characterized in that it further comprises: detecting the temperature J of the bolt in real-time; according to the bolt temperature J, the elongation length L is carried out to the secondary correction; firstly, setting the preset bolt temperature matrix GO and the secondary correction coefficient matrix C for the preset elongation length, for the secondary correction coefficient matrix C for the preset elongation length, setting C (C1, C2, C3, C4), wherein C1 is the the secondary correction coefficient for the first preset elongation length, C2 is the the secondary correction coefficient for the second preset elongation length, C3 is the the secondary correction coefficient for the third preset elongation length, C4 is the the secondary correction coefficient for the fourth preset elongation length, and 1 <<C1<<C2<<C3<<C4<1.2; for the preset bolt temperature matrix GO, setting GO (G01, G02, G03, G04), wherein GO1 is the first preset bolt temperature, GO2 is the second preset bolt temperature, GO3 is the third preset bolt temperature, G04 is the fourth preset bolt temperature , and G01 < G02 < G03 < G04 <70°C; the corresponding secondary correction coefficient is selected to carry out the secondary correction after the correction elongation length L, according to the relationship between J and the preset bolt temperature matrix GO; when J<<GO01, the secondary correction coefficient C1 for the first preset elongation length is selected to carry out the secondary correction after the correction elongation length L, and the corrected elongation length is L*B1*C1; when GO1< J << G02, the secondary correction coefficient C2 for the second preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B2*C2; when G02< J<G03, the secondary correction coefficient C3 for the third preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B3*C3; when GO3< J << G04, the secondary correction coefficient C4 for the fourth preset elongation length is selected to carry out the secondary correction after the correction elongation length L and the corrected elongation length is L*B4*C4.
9. The detection method based on ultrasonic length measurement according to claim 8, it is characterized in that it further comprises:
according to the ambient temperature T around the detection device and the temperature J b504165 the bolt compute the temperature difference value X; wherein X= |T-J];
firstly, setting the preset temperature value matrix FO and the three times correction coefficient matrix D for the preset elongation length, for the three times correction coefficient matrix D for the preset elongation length, setting D (D1, D2, D3, D4), wherein D1 is the three times correction coefficient for the first preset elongation length, D2 is the three times correction coefficient for the second preset elongation length, D3 is three times correction coefficient for the third preset elongation length, D4 is three times correction coefficient for the fourth preset elongation length, and 1<<D1<<D2<<D3<<D4<1.2;
for the preset temperature difference value matrix FO, setting FO (FO1, F02, F03, F04), wherein the FO1 is the first preset temperature difference value, FO2 is the second preset temperature difference value, FO3 is the third preset temperature difference value, F04 is the fourth preset temperature difference value, and FO1 < F02 < F03 <F04;
the corresponding three times correction coefficient is selected to carried out the three times correction after the correction of the elongation length L, according to the relationship between
X and the preset temperature difference value matrix FO;
when X<FO01, the three times correction coefficient D1 for the first preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B1*C1*D1;
when F01< X << F02, the three times correction coefficient D2 for the second preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B2*C2*D2;
when F02< X<F03, the three times correction coefficient D3 for the third preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B3*C3*D3;
when F03< X < F04, the three times correction coefficient D4 for the fourth preset elongation length is selected to carry out three times correction for the elongation length L after the secondary correction, and the corrected elongation length is L*B4*C4*D4.
LU504165A 2023-03-17 2023-05-09 The detection device and method based on ultrasonic length measurement LU504165B1 (en)

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