CN209802286U - Pressing pressure and curing temperature controllable resistance strain gauge pasting device - Google Patents
Pressing pressure and curing temperature controllable resistance strain gauge pasting device Download PDFInfo
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- CN209802286U CN209802286U CN201920533355.5U CN201920533355U CN209802286U CN 209802286 U CN209802286 U CN 209802286U CN 201920533355 U CN201920533355 U CN 201920533355U CN 209802286 U CN209802286 U CN 209802286U
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Abstract
The utility model provides a resistance strain gauge pasting device with controllable pressing pressure and curing temperature, which comprises an execution unit and a power supply display control unit; the execution unit comprises a connecting plate, a hot pressing box, a screw jacking mechanism and a fixing mechanism; the power supply display control unit comprises a pressing pressure display module, a curing temperature controller, a curing heating start-stop control button and a timing acousto-optic prompt module. The utility model discloses a fixed establishment realizes fixing of hot pressing box, utilizes the jackscrew to apply the pressure of pressing to the resistance strain gauge, uses film pressure sensor accurate measurement pressure, realizes the heating solidification of resistance strain gauge pasting in-process through the silicon rubber hot plate that has the temperature controller to the device has regularly functions such as reputation suggestion, has satisfied the technological requirement that resistance strain gauge pasted.
Description
Technical Field
The utility model relates to a strain test technical field, concretely relates to device is pasted to controllable resistance strain gauge of pressure, curing temperature.
background
The resistance strain gauge is a highly-precise mechanical measurement sensing element with wide application, the main component of the resistance strain gauge is a sensitive grid, the grid length of the sensitive grid is generally 0.2-100 mm, the sensitive grid can be regarded as a resistor, the resistance value is 60-1000 ohms (the most common is 120 ohms and 350 ohms), and the change of the material performance and the geometric shape of the sensitive grid can cause the change of the resistance value. When the resistance strain gauge is adhered to the surface of a component, the surface of the component generates tiny deformation (extension or contraction) after load is applied, the sensitive grid deforms along with the tiny deformation, the resistance of the resistance strain gauge changes, and the change rate of the resistance strain gauge is proportional to the strain epsilon of the component where the resistance strain gauge is installed. The change of the resistance is measured, and the strain of the surface of the component and the corresponding stress can be calculated according to a formula. The basic task of the resistance strain gauge is to convert the deformation of the surface of the component into an electric signal, and input the electric signal into a relevant instrument for analysis and processing.
The resistance strain gauge has the characteristics of large sensitivity coefficient, high frequency response, less mechanical hysteresis, small creep deformation and the like, and is widely used for strain measurement and manufacturing various sensors. The resistance strain gauge is applicable to structures including aerospace vehicles, atomic reactors, bridges, roads, dams, various mechanical equipment and the like, and applicable materials include various metal and non-metal materials such as steel, aluminum, wood, plastics, glass, earth and stone, composite materials and the like. The device is not only suitable for indoor experiments and model experiments, but also can measure actual structures or components on site. These characteristics are not comparable to other sensing elements.
The sticking of the resistance strain gauge is the most critical step in the whole installation process of the resistance strain gauge, and has absolute influence on the strain test precision. At present, most of adhesives commonly used at home and abroad for adhering the resistance strain gauges need to be cured by pressurization and heating. The temperature, the time and the pressure are three curing factors of the resistance strain gauge, and the three factors are strictly ensured according to corresponding curing process specifications of the adhesive. The compression of the resistance strain gauge is generally to lay a teflon film and a silicon rubber plate on the resistance strain gauge in sequence, and then to compress the resistance strain gauge by using a clamp or a pressing block. In order to effectively eliminate internal stress, the temperature is generally raised to about 30 ℃ higher than the pressure curing temperature after pressure relief, the temperature is kept for 1-2 hours for stabilization treatment, and the specific patch curing parameters can refer to the corresponding technical requirements of the adhesive curing process. For example, the H-610 adhesive has the following pasting process: and (3) initially curing, pressurizing to 0.1-0.3 MPa, heating to 135 ℃, preserving heat for 2 hours, then cooling to room temperature for pressure relief, heating to 165 ℃, preserving heat for 2 hours, and then cooling to room temperature.
The following situations often exist in the pasting process of the resistance strain gauge in the laboratory: firstly, the pasting of the resistance strain gauge is finished by hand. The strain gauge is attached to the strain gauge, so that the attaching position of the strain gauge is difficult to grasp for a less skilled operator, and the resistance strain gauge is not accurately tested due to uneven pressing or improper pressure. Secondly, due to the structural size or technical conditions of the component and the like, the temperature curing link is simplified in the pasting process of the resistance strain gauge, the technical conditions of high-temperature curing and the like cannot be carried out or implemented, and the phenomenon of inaccurate strain test can also be caused.
Therefore, in order to perfect the mounting process of the resistance strain gauge, improve the strain testing precision and improve the testing efficiency, the applicant designs and develops a resistance strain gauge pasting device with controllable pressing pressure and curing temperature by combining the practical situation. The device is suitable for the surface of a metal or nonmetal component, can overcome the defects or shortcomings of the traditional manual pasting of the resistance strain timing, realizes the pasting of the resistance strain timing and the condition states of controllable pressing pressure and curing temperature, and meets the technical requirement of pasting the resistance strain gauge in the high-precision measurement process.
Disclosure of Invention
the utility model aims at providing a device is pasted to controllable resistance strain gauge of pressure, curing temperature, the device adsorbs the fixed that the function realized the hot pressing box through the electro-magnet, utilizes the jackscrew to apply the pressure to resistance strain gauge, uses film pressure sensor accurate measurement pressure, realizes the heating solidification of resistance strain gauge pasting in-process through the silicon rubber hot plate that has the temperature controller to the device has functions such as regularly reputation suggestion, has satisfied the technological requirement that resistance strain gauge pasted.
The technical scheme of the utility model is that:
The device is pasted to controllable resistance strain gauge of pressure, curing temperature which characterized in that: comprises an execution unit and a power supply display control unit; the execution unit is connected with the power supply display control unit through a cable;
the execution unit comprises a connecting plate, a hot pressing box, a screw jacking mechanism and a fixing mechanism;
The lower part of the hot pressing box is provided with a hole, and the aperture of the hole is not smaller than that of the resistance strain gauge to be bonded; a jackscrew pressing plate, a film pressure sensor and a silicon rubber heating plate are sequentially arranged in the hot pressing box from top to bottom;
The jackscrew mechanism comprises a jackscrew knob, a jackscrew rod and a jackscrew pressing plate arranged in the hot pressing box, the jackscrew rod penetrates through the connecting plate and the top of the hot pressing box and then is connected with the jackscrew pressing plate, the jackscrew knob is arranged at the upper end of the jackscrew rod, the jackscrew pressing plate can be driven to move by rotating the jackscrew knob, pressure is provided for the film pressure sensor and the silicon rubber heating plate, and the relative position of the silicon rubber heating plate and the resistance strain gauge to be bonded is changed;
The heating wire and the temperature sensor are arranged in the silicon rubber heating plate;
the fixing mechanism can fix the connecting plate on an adhesive member of the resistance strain gauge to be adhered;
The power supply display control unit comprises a pressing pressure display module, a curing temperature controller, a curing heating start-stop control button and a timing acousto-optic prompt module;
The pressing pressure display module receives a signal of the film pressure sensor and displays the pressing pressure after amplification;
The curing heating start-stop control button is connected with the curing temperature controller, and curing heating start-stop control is realized through the curing temperature controller;
The curing temperature controller is connected with the silicon rubber heating plate to realize automatic control and display of curing temperature;
the timing acousto-optic prompting module is connected with the curing temperature controller to realize the timing control and prompting functions of heating time.
Further preferred scheme, the resistance strain gauge pasting device with controllable pressing pressure and curing temperature is characterized in that: when the bonding component is a magnetic-adsorption metal component, the fixing mechanism adopts a magnetic base, and the connecting plate adopts a magnetic-adsorption metal connecting plate; the magnetic base is arranged around the hot pressing box, the metal component and the metal connecting plate are magnetically adsorbed at two ends, and the adhering device is fixed on the metal component.
Further preferred scheme, the resistance strain gauge pasting device with controllable pressing pressure and curing temperature is characterized in that: the pressing pressure display module comprises an amplifying circuit of a film pressure sensor signal, a direct current stabilized voltage power supply and a pressure display instrument; the direct current stabilized voltage power supply supplies power to the amplifying circuit and the film pressure sensor; the amplifying circuit converts the pressure signal of the film pressure sensor into a voltage signal corresponding to the pressure signal, and then the pressing pressure is displayed in real time through the pressure display instrument.
Further preferred scheme, the resistance strain gauge pasting device with controllable pressing pressure and curing temperature is characterized in that: the display pressing pressure range of the pressure display instrument is 0-10 MPa, and the precision is 3%.
Further preferred scheme, the resistance strain gauge pasting device with controllable pressing pressure and curing temperature is characterized in that: the curing temperature controller mainly comprises a temperature controller and a solid-state relay, and is connected with the silicon rubber heating plate and the internal temperature sensor thereof to form feedback closed-loop control and realize the automatic control of the curing temperature.
Further preferred scheme, the resistance strain gauge pasting device with controllable pressing pressure and curing temperature is characterized in that: the temperature measuring range of the curing temperature controller is 0-400 ℃, and the precision is 1%.
Advantageous effects
the utility model is a pasting tool of the resistance strain gauge with controllable pressing pressure and curing temperature, which can manually apply the pressing pressure and display the pressure in real time; the curing temperature in the pasting process can be automatically controlled and displayed, and the time is provided for prompting, so that the functions can well ensure the accurate implementation of the pasting process of the resistance strain gauge, and the quality of strain test is improved.
additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1: the structural schematic diagram of the sticking device of the resistance strain gauge;
In fig. 1, 1 is a housing of a member, and is also a part to which the resistance strain gauge needs to be attached; 2, a resistance strain gauge is used for realizing pressurization, heating and solidification of the resistance strain gauge by a pasting device; 3, a magnetic base is used for realizing the sticking of the resistance strain gauge on the metal surface, and the hot pressing box of the execution unit of the sticking device of the resistance strain gauge can be fixed through the adsorption function of the magnetic base; 4, a hot pressing box and a rectangular metal box body, wherein the lower part of the hot pressing box is provided with a rectangular opening, the upper part of the hot pressing box is provided with a threaded hole, and the periphery of the hot pressing box is provided with a lead opening; a silicon rubber heating plate is used for realizing the heating and curing functions in the process of pasting the resistance strain gauge; 6, a silicon rubber heating plate is used for heating the resistance strain gauge; 7, a film pressure sensor is used for testing the pressing pressure; 8, a jackscrew pressing plate which uniformly transmits the pressure of the jackscrew to the film pressure sensor; 9 is a jackscrew rod for transmitting the pressure of the jackscrew; 10 is a jackscrew knob through which jackscrew pressure is applied; the fixing support 11 is used for fixing the whole execution unit by connecting a locking belt through the fixing support under the condition that the magnetic seat cannot be used for fixing the hot pressing box on the non-metal surface; 12, a pressing pressure display module which displays the pressing pressure applied by the jackscrew knob in unit MPa at any time; 13 is a curing temperature controller, has the function of setting curing temperature, and displays the curing temperature heated by a silicon rubber heating plate in unit; 14 is a start-stop control button for curing and heating; 15, a timing acousto-optic prompt module, which can give a corresponding acousto-optic prompt when the pressure maintaining or heat preservation time is up after a certain process stage is finished; 16 is a cable bundle, which comprises an electromagnet electrified cable, a silicon rubber heating plate electrified cable and a film pressure sensor signal transmission cable.
FIG. 2: an amplifying circuit schematic diagram of the film pressure sensor;
in FIG. 2, VCCthe power supply positive power supply of the component, and GND is the power ground. VTis the drive voltage of the membrane pressure sensor. The integrated circuit IC is an operational amplifier. HT201 is a high-temperature-resistant film pressure sensor, the diameter is 10mm, the thickness is about 0.2mm, the linearity is better than +/-3%, the working temperature range is-9-204 ℃, and the pressure measurement range is 0-3 MPa. The film pressure sensor requires stable power supply voltage; feedback resistance range is no load condition at 5K omega, and resistance RSGreater than 5M omega and the maximum allowable current level is 2.5 mA. When the film pressure sensor bears pressure, the impedance of the film pressure sensor linearly changes along with the pressure change, and the amplified voltage output V can be obtained by using the amplifying circuit shown in figure 2OUT≡-VT*(RF/RS) And the corresponding pressing pressure can be directly displayed by using the display instrument.
FIG. 3: a temperature control schematic diagram of the silicon rubber heating plate;
in fig. 3, the QF circuit breaker is closed, the temperature controller is powered on, the heating function is started according to the temperature set by the temperature controller, the temperature controller outputs control signals with different duty ratios at the output end of the SSR, the silicon rubber heating plate is powered on to start automatic heating, the heating rate is proportional to the duty ratio output by the SSR, the heated temperature is detected by the temperature sensor and fed back to the temperature controller, when the heating temperature is close to or reaches the set temperature, the temperature controller stops outputting or outputs the duty ratio to be reduced, and the automatic temperature control function is realized.
Detailed Description
the utility model provides a press pressure, controllable resistance strain gauge of curing temperature and paste device is the product of one set of electromechanical combination, and its structure mainly comprises execution unit and power supply display control unit two parts.
The main function of the execution unit is to fix the resistance strain gauge, and to pressurize and heat the resistance strain gauge for curing according to the technical requirements. In this embodiment, the execution unit includes magnetic base, hot pressing box, connecting plate, silicon rubber hot plate, film pressure sensor, jackscrew clamp plate, jackscrew pole, jackscrew knob and fixed bolster.
The functions of each component of the execution unit are respectively as follows:
When the magnetic base mainly aims at the metal surface, the function of fixing the hot pressing box is realized. When the switch of the magnetic base is turned on, a magnetic field is formed, so that the hot pressing box between the magnetic base and the shell of the fixed metal component is adsorbed, and the opening at the lower part (in which a silicon rubber heating plate and the like are arranged) of the hot pressing box is opposite to the resistance strain gauge coated with the adhesive. After the hot pressing box is positioned and fixed, the silicon rubber heating plate in the lower opening of the hot pressing box can adjust the relative position of the silicon rubber heating plate and the resistance strain gauge through the jackscrew structure on the upper part of the hot pressing box, so that pressurization or heating is realized. The silicon rubber heating plate is mainly used for realizing heating and curing of the resistance strain gauge, and a temperature sensor is placed in the silicon rubber heating plate except for a heating resistance wire, so that the function of measuring the curing and heating temperature is realized. In addition, since the silicone rubber material is soft and excellent in pressure resistance, the silicone rubber heating plate is also an optimum medium for transmitting pressure. The film pressure sensor is mainly used for testing the pressing pressure of the resistance strain gauge, and the pressure measuring signals are transmitted to the power supply control display unit through the cable, so that the real-time display of the pressing pressure is realized. The jackscrew pressing plate, the jackscrew rod and the jackscrew knob form a jackscrew structure and apply pressing pressure to the resistance strain gauge. The fixing support aims at the nonmetal components, the magnetic base cannot be used for fixing, and the fixing support is connected with the locking belt to fix the whole execution unit.
The power supply control display unit includes: the device comprises a pressing pressure display module, a curing temperature controller, a start-stop control button for curing and heating, a timing acousto-optic prompt module and the like. The power supply control display unit mainly has the functions of forming a functional closed loop with the execution unit, and realizing the functions of controllable pressing pressure of the resistance strain gauge, control display of curing temperature, timing acousto-optic prompt and the like. The power supply control display unit has the following functions: the pressing pressure display module mainly comprises an amplifying circuit of a film pressure sensor signal, a direct-current stabilized voltage power supply (supplying power to the amplifying circuit and the film pressure sensor), a pressure display instrument and other elements, the sensor pressure signal is converted into a voltage signal corresponding to the sensor pressure signal through the amplifying circuit, the pressing pressure is displayed through the pressure display instrument at any time, the range of the displayed pressing pressure is 0-10 MPa, and the precision is 3%. The curing temperature controller mainly comprises a temperature controller and a solid-state relay, and realizes the automatic heating control and display function of temperature curing by forming a feedback closed loop with the silicon rubber heating plate and the temperature sensor. The temperature measurement range is 0-400 ℃, and the precision is 1%. The timing acousto-optic prompting module mainly comprises a timer, a relay, an alarm and other devices, and mainly realizes timing and prompting functions.
A cable bundle is designed between the execution unit and the power supply control display unit and comprises a silicon rubber heating plate electrified cable, a film pressure sensor and a temperature sensor signal transmission cable. Each cable is provided with a matched adapter socket, so that accurate and reliable connection between the cables can be conveniently realized.
The resistance strain gauge pasting device with controllable pressing pressure and curing temperature is an electromechanical strain sensor mounting tool, and can be conveniently manufactured according to the design principle and the method provided by the patent technology. The specific implementation process mainly comprises the following aspects:
(1) Structural design.
regarding the conventional substrate size (10mm × 5mm) of the resistance strain gauge, considering that the actuator unit cannot be too large to be conveniently operated, the length, width, height and size of the magnetic seat are 50mm × 50mm according to the adsorption force of about 100Kgf, and the length, width, height and size of the hot-pressing box are designed to be 50mm × 50 mm. The hot pressing box is clamped between the two magnetic force seats, and the fixing of the device structure is realized through the connecting plate. The middle of the upper part of the hot pressing box is provided with a threaded hole M12, and the jackscrew structure can act on the jackscrew pressing plate to apply pressing pressure. The lower part of the hot pressing box is provided with a cuboid space with the length, width and height of 30mm, and a top thread pressing plate, a film pressure sensor and a silicon rubber heating plate are sequentially placed. In addition, aiming at the condition that the nonmetal components are not easy to fix, the fixing support is specially designed, the two fixing supports on the connecting plate are designed into a rotating shaft structure, and the fixing of the locking belt to the execution unit is convenient to realize through the locker. In this way, the locking belts with different lengths can be selected to realize the fixation of the device execution unit on the components with different specifications.
(2) Key components and instruments and meters are selected.
The film pressure Sensor selects Flexiforcesensor HT201 produced by TeKscan company, the working temperature can reach 200 ℃, the measuring pressure can reach 10MPa, and the precision is better than 3%. The IC in the pressure sensor amplifying circuit is MCP 6004, and the positive power supply output V of the direct-current stabilized power supplyCCis +5V, the driving voltage V for the sensor is increasedTis-1V, feedback resistance RFA 100K potentiometer is selected. WP-C3030115LHPT is wetted on the pressure display instrument, the input voltage is 0-5V, the upper limit and the lower limit of a measurement display band are controlled to alarm, the relay outputs, and the measurement accuracy is 0.5 grade. The temperature sensor selects a T-shaped thermocouple, the measurement temperature range can reach 400 ℃, the resolution can reach more than 0.1 ℃, and the response speed is high. The temperature control meter selects an ohm dragon E5CZ-R2 digital temperature controller, double-row four-digit color liquid crystal display, 2-degree-of-freedom PID heating control, relay output and display accuracy of 0.5% PV. The solid-state relay selects the ohm dragon G3 MB-202P. The thickness of the silicon rubber heating plate is about 2mm, the size is 30mm, the insulation is more than 50M omega, the compression strength is 10kN, and the power is 2W/cm2The insulating high-temperature resistant material can reach 250 ℃ and the use temperature is 220 ℃.
(3) aspect of thermal protection
Because the temperature may produce certain influence to magnetic field, can lead to magnetic force seat adsorption affinity to weaken and lead to the heating solidification in-process to press pressure to receive the influence, consequently, on selecting the magnetic force seat material, confirm the magnetic force seat that uses alnico magnet preparation, alnico permanent magnetism product operating temperature can be up to more than 600 ℃, the magnetic force seat adsorption affinity of preparation receives temperature environment influence relatively less.
In addition, the curing temperature generated by the silicone rubber heating plate can reach more than 200 ℃, which may cause thermal expansion of the unit structure and insulation reduction of the wires and cables, and the selection of structural materials and leakage protection need to be considered.
compare with traditional resistance strain gauge pasting, the utility model discloses rational in infrastructure, convenient to use have characteristics such as high accuracy, high efficiency, have overcome the defect and not enough that manual pasting resistance strain gauge in-process exists, have promoted resistance strain gauge test work's efficiency, all simple and easy in principle and realization, the device pastes the instrument as a multi-functional resistance strain gauge, also can use widely in similar application environment, has certain social application prospect.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (6)
1. The utility model provides a device is pasted to controllable resistance strain gauge of pressure, curing temperature which characterized in that: comprises an execution unit and a power supply display control unit; the execution unit is connected with the power supply display control unit through a cable;
the execution unit comprises a connecting plate, a hot pressing box, a screw jacking mechanism and a fixing mechanism;
the lower part of the hot pressing box is provided with a hole, and the aperture of the hole is not smaller than that of the resistance strain gauge to be bonded; a jackscrew pressing plate, a film pressure sensor and a silicon rubber heating plate are sequentially arranged in the hot pressing box from top to bottom;
the jackscrew mechanism comprises a jackscrew knob, a jackscrew rod and a jackscrew pressing plate arranged in the hot pressing box, the jackscrew rod penetrates through the connecting plate and the top of the hot pressing box and then is connected with the jackscrew pressing plate, the jackscrew knob is arranged at the upper end of the jackscrew rod, the jackscrew pressing plate can be driven to move by rotating the jackscrew knob, pressure is provided for the film pressure sensor and the silicon rubber heating plate, and the relative position of the silicon rubber heating plate and the resistance strain gauge to be bonded is changed;
The heating wire and the temperature sensor are arranged in the silicon rubber heating plate;
The fixing mechanism can fix the connecting plate on an adhesive member of the resistance strain gauge to be adhered;
The power supply display control unit comprises a pressing pressure display module, a curing temperature controller, a curing heating start-stop control button and a timing acousto-optic prompt module;
The pressing pressure display module receives a signal of the film pressure sensor and displays the pressing pressure after amplification;
the curing heating start-stop control button is connected with the curing temperature controller, and curing heating start-stop control is realized through the curing temperature controller;
The curing temperature controller is connected with the silicon rubber heating plate to realize automatic control and display of curing temperature;
the timing acousto-optic prompting module is connected with the curing temperature controller to realize the timing control and prompting functions of heating time.
2. The resistive strain gauge pasting device with controllable pressing pressure and curing temperature as claimed in claim 1, wherein: when the bonding component is a magnetic-adsorption metal component, the fixing mechanism adopts a magnetic base, and the connecting plate adopts a magnetic-adsorption metal connecting plate; the magnetic base is arranged around the hot pressing box, the metal component and the metal connecting plate are magnetically adsorbed at two ends, and the adhering device is fixed on the metal component.
3. The resistive strain gauge pasting device with controllable pressing pressure and curing temperature according to claim 1 or 2, wherein: the pressing pressure display module comprises an amplifying circuit of a film pressure sensor signal, a direct current stabilized voltage power supply and a pressure display instrument; the direct current stabilized voltage power supply supplies power to the amplifying circuit and the film pressure sensor; the amplifying circuit converts the pressure signal of the film pressure sensor into a voltage signal corresponding to the pressure signal, and then the pressing pressure is displayed in real time through the pressure display instrument.
4. the resistive strain gauge pasting device with controllable pressing pressure and curing temperature as claimed in claim 3, wherein: the display pressing pressure range of the pressure display instrument is 0-10 MPa, and the precision is 3%.
5. the resistive strain gauge pasting device with controllable pressing pressure and curing temperature as claimed in claim 3, wherein: the curing temperature controller mainly comprises a temperature controller and a solid-state relay, and is connected with the silicon rubber heating plate and the internal temperature sensor thereof to form feedback closed-loop control and realize the automatic control of the curing temperature.
6. the resistive strain gauge pasting device with controllable pressing pressure and curing temperature as claimed in claim 5, wherein: the temperature measuring range of the curing temperature controller is 0-400 ℃, and the precision is 1%.
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| CN201920533355.5U CN209802286U (en) | 2019-04-18 | 2019-04-18 | Pressing pressure and curing temperature controllable resistance strain gauge pasting device |
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| CN201920533355.5U CN209802286U (en) | 2019-04-18 | 2019-04-18 | Pressing pressure and curing temperature controllable resistance strain gauge pasting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473723A (en) * | 2020-04-30 | 2020-07-31 | 中国航发沈阳发动机研究所 | Strain gauge program-controlled heating and pressurizing device with complex profile self-adaptability |
| CN112361951A (en) * | 2020-11-10 | 2021-02-12 | 水利部产品质量标准研究所 | Pen type auxiliary tool in pasting process of resistance strain gauge |
| CN113310604A (en) * | 2021-04-23 | 2021-08-27 | 青岛东方船研深海装备结构技术有限公司 | Stress sensor installation auxiliary system and device |
| CN114112118A (en) * | 2021-10-29 | 2022-03-01 | 宁波柯力传感科技股份有限公司 | Surface mount type stress-strain sensor and mounting method thereof |
| CN114485538A (en) * | 2021-12-13 | 2022-05-13 | 中国工程物理研究院化工材料研究所 | Method for improving strain measurement accuracy of PBX structural member |
-
2019
- 2019-04-18 CN CN201920533355.5U patent/CN209802286U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473723A (en) * | 2020-04-30 | 2020-07-31 | 中国航发沈阳发动机研究所 | Strain gauge program-controlled heating and pressurizing device with complex profile self-adaptability |
| CN112361951A (en) * | 2020-11-10 | 2021-02-12 | 水利部产品质量标准研究所 | Pen type auxiliary tool in pasting process of resistance strain gauge |
| CN112361951B (en) * | 2020-11-10 | 2022-07-01 | 水利部产品质量标准研究所 | Pen type auxiliary tool in pasting process of resistance strain gauge |
| CN113310604A (en) * | 2021-04-23 | 2021-08-27 | 青岛东方船研深海装备结构技术有限公司 | Stress sensor installation auxiliary system and device |
| CN114112118A (en) * | 2021-10-29 | 2022-03-01 | 宁波柯力传感科技股份有限公司 | Surface mount type stress-strain sensor and mounting method thereof |
| CN114485538A (en) * | 2021-12-13 | 2022-05-13 | 中国工程物理研究院化工材料研究所 | Method for improving strain measurement accuracy of PBX structural member |
| CN114485538B (en) * | 2021-12-13 | 2023-08-22 | 中国工程物理研究院化工材料研究所 | Method for improving strain measurement accuracy of PBX structural member |
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