Temperature testing apparatus for a marine biosensor and method thereof
By setting up multiple independent temperature zones and circulation mechanisms in the marine biological sensor temperature testing equipment, the problems of cumbersome operation and data distortion in the existing technology are solved, achieving efficient and accurate temperature testing and ensuring the independence of the sensor and the reliability of data at different temperature points.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
- Filing Date
- 2026-03-06
- Publication Date
- 2026-05-15
AI Technical Summary
Existing marine biological sensor temperature testing equipment is cumbersome to operate, has low testing efficiency, is difficult to achieve continuous and rapid temperature switching, and the sensor probe is easily contaminated by residual water from the previous temperature, resulting in distorted test data. It also lacks an integrated design with stepped calibration and dynamic response.
By setting up multiple independent temperature zones in the constant temperature chamber, a stable temperature gradient is formed by heating tubes. Combined with a rotatable sealing plug and a water trough, the sensors can complete the step heating and dynamic response tests in parallel. The seawater is automatically updated when the temperature zones are switched through a circulation mechanism to avoid temperature mixing.
This improved testing efficiency and the accuracy of temperature switching, ensured that the seawater temperature in contact with the sensor was pure and consistent, enhanced the reliability and repeatability of test data, and achieved accurate and stable calibration of the sensor.
Smart Images
Figure CN121804702B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sensor experimental testing technology, and more specifically, to a temperature testing device and method for a marine biological sensor. Background Technology
[0002] Temperature testing of marine biosensors is crucial for ensuring their reliable operation in complex marine environments. The tests simulate temperature variations across different seasons in a laboratory setting to evaluate the temperature resistance and stability of the sensor's internal components, shell materials, and biosensitive elements. This verifies whether temperature affects the sensor's measurement accuracy, calibrates its temperature compensation algorithm, and tests its adaptability for long-term operation, thus ensuring the acquisition of accurate and continuous marine ecological data.
[0003] Patent application number CN202322168104.0 discloses a sealing and limiting device for measuring the internal temperature of a container, including a first limiting part and a second limiting part. The second limiting part is rotatably installed on the bottom upper surface edge of the first limiting part. A base is provided inside the first limiting part. Limiting bushings are symmetrically provided on the upper surface edge of the base. A first limiting arc plate is rotatably installed on the upper surface edge of the base. Flip plates are rotatably installed on the outer surfaces of both ends of the first limiting arc plate. By combining a wireless temperature sensor and a protection device, it can ensure that the sensor probe is located in the middle position inside the canned food for temperature measurement.
[0004] However, existing marine biological sensor temperature testing equipment requires frequent manual replacement or adjustment of the isothermal medium during testing, resulting in cumbersome operation, low testing efficiency, and difficulty in achieving continuous and rapid temperature switching. At the same time, when switching temperature ranges, the sensor probe is easily contaminated by residual water from the previous temperature, leading to temperature mixing, distorted test data, and an inability to guarantee the independence and repeatability of different temperature points. Furthermore, it lacks an integrated design that can complete stepped calibration and dynamic response testing in parallel within the same testing cycle.
[0005] In view of this, we propose a temperature testing device and method for marine biosensors. Summary of the Invention
[0006] The purpose of this invention is to provide a temperature testing device and method for marine biological sensors. By dividing the seawater in the chamber into multiple independent temperature zones, each temperature zone can be heated and maintained at a different temperature by means of heating tubes, forming a stable and gradually changing temperature gradient environment. Combined with a rotatable sealing plug and a water passage, a pair of sensors can complete two test modes in parallel in a single test: stepped heating and dynamic response, thereby solving the problems mentioned in the background art.
[0007] To achieve the above objectives, the present invention provides the following technical solution:
[0008] A temperature testing device for a marine biological sensor includes a constant temperature chamber, a rotating mechanism disposed inside the constant temperature chamber, and several circulation mechanisms regularly distributed inside the rotating mechanism.
[0009] The constant temperature chamber includes a concave chamber body. Several regularly distributed and vertically connected flow channels are opened on the upper and lower walls of the concave chamber body. The rotating mechanism includes a sealing plug that rotates inside the concave chamber body and a pair of sleeves set on the outer wall of the sealing plug for placing sensors. A water passage channel that is vertically connected and adapted to the size of the flow channel is opened at the end of the sleeve inside the sealing plug. After the water passage channel is connected to the flow channel, seawater in the constant temperature chamber flows into the water passage channel and contacts the end probe of the sensor.
[0010] The circulation mechanism includes a drainage cylinder, a movable rod disposed inside the drainage cylinder, a pair of protrusions disposed on the outer wall of the movable rod, a sealing plate sleeved on the outer side of the movable rod, and a spring disposed on the bottom surface of the movable rod. The top surface of the drainage cylinder is provided with a pair of drainage grooves, and the inner wall of the sealing plate and the top circular plate are respectively provided with a pair of spiral grooves and a pair of plate surface grooves.
[0011] After the water channel is moved above the drain cylinder, the movable rod moves upward under the action of the spring, driving the protrusion to move along the spiral groove, which in turn drives the sealing plate to rotate, allowing the drain channel to connect with the water channel, and allowing the seawater in the water channel to flow into the drain cylinder.
[0012] In the technical solution of the present invention, the constant temperature chamber further includes an annular chamber body, several heating pipes regularly distributed on the inner wall of the annular chamber body, several heat insulation plates regularly welded in pairs to the inner wall of the annular chamber body, a fixed bottom chamber fixedly connected to the bottom surface of the annular chamber body by bolts, a top cover snapped and fixed to the top surface of the annular chamber body, and a bracket welded and fixed to the outer wall of the annular chamber body.
[0013] In the technical solution of the present invention, the concave chamber is welded and fixed to the annular chamber, and a gap is left between the outer wall of the concave chamber and the inner wall of the annular chamber for seawater to pass through. Seawater of different temperatures is injected into the interior of the annular chamber between several adjacent heat insulation plates.
[0014] The above setup creates a stable, zoned temperature testing environment. By separating and independently heating the temperature zones, a continuous and controllable temperature gradient is formed, simulating real ocean temperature changes and providing accurate and stable calibration conditions for the sensors.
[0015] In the technical solution of the present invention, the rotating mechanism further includes a hoop fixed to the outer end of the sleeve, a motor fixed to the outer wall of the fixed bottom chamber by bolts, a rotating shaft coaxially connected to the output shaft of the motor, shaft teeth sleeved on the end of the rotating shaft, and ring teeth sleeved on the outer wall of the sealing plug.
[0016] In the technical solution of the present invention, a sealing ring is adhered to the inner end of the sleeve, the rotating shaft is rotatably connected to the inside of the bracket, the shaft tooth is fixedly connected to the end of the rotating shaft by a snap pin, and the ring tooth is snapped and fixed to the outer wall of the sealing plug and meshes with the shaft tooth.
[0017] The above setup utilizes a two-tube design, allowing a pair of sensors to perform two test modes in parallel: stepped heating and dynamic response, in a single test.
[0018] In the technical solution of the present invention, the drainage cylinder is snapped and fixed to the bottom surface of the concave chamber, and a circular hole is provided at the center of the top surface of the drainage cylinder. The bottom end of the drainage cylinder is connected to a drainage pipe through a bent pipe, and the top end of the drainage pipe is snapped and fixed to the bottom surface of the annular chamber.
[0019] In the technical solution of the present invention, the circulation mechanism further includes a movable part, which includes a fixed tube sleeved on the outside of the movable rod, a slide rod snapped onto the bottom surface of the movable rod, and a round plug heat-fused to the bottom end of the slide rod. The end of the movable rod is hemispherical.
[0020] In the technical solution of the present invention, the fixed tube is snapped and fixed to the inner wall of the drainage cylinder, the movable rod slides inside the fixed tube, the protrusion is snapped and fixed to the outer wall of the movable rod, the sealing plate is rotatably connected to the inner wall of the drainage cylinder, the size of the slot on the plate surface is adapted to the size of the drainage groove, the bottom end of the spring abuts against the inner bottom surface of the fixed tube, the sliding rod slides on the bottom surface of the fixed tube, and when the movable rod retracts to the inside of the sealing plate, the round plug seals the bottom end of the drainage cylinder.
[0021] In the technical solution of the present invention, the bottom end of the drain pipe is also connected to a water pump that is fixed to the inner wall of the fixed bottom compartment by screws, and the outlet end of the water pump is connected to a return pipe, the top end of the return pipe extending to the bottom of the top cover.
[0022] The above settings ensure the accuracy of the test and the stability of the environment. Its drainage and circulation mechanism can automatically update the seawater in contact with the sensor when switching temperature zones, avoid temperature mixing, and continuously circulate the water to maintain the temperature uniformity of each temperature zone.
[0023] On the other hand, the present invention also provides a temperature testing method for a marine biosensor, using the aforementioned temperature testing equipment for a marine biosensor, comprising the following steps:
[0024] S1. First, the operator inserts the marine biological sensor to be tested into the sleeve in the rotating mechanism, tightens the hoop to fix the sensor, injects seawater into the annular chamber of the constant temperature chamber, and starts several heating tubes to heat the seawater between adjacent heat insulation plates to different temperatures, forming independent temperature zones with progressively increasing and relatively stable temperatures.
[0025] S2. At the same time, the water pump in the circulation mechanism is started, so that the seawater at the bottom of the annular chamber flows back to the upper part of the annular chamber through the drain pipe and return pipe, forming an internal circulation of seawater to keep the temperature of each temperature zone uniform and stable, and monitors the seawater temperature in the initial temperature zone where the sensor is located until the reading is stable, and then records it through the external data acquisition equipment.
[0026] S3. Next, start the motor to drive the rotating shaft to rotate. Through the meshing of the shaft teeth and ring teeth, the sealing plug is driven to rotate, so that the water passage groove and the flow groove are misaligned and moved to the top of the drain cylinder in the same temperature zone.
[0027] S4. At this time, the movable rod moves upward under the action of the spring, pushing the protrusion to move along the spiral groove, driving the sealing plate to rotate, so that the drainage groove and the water passage groove are connected, and the seawater in the water passage groove flows into the drainage cylinder.
[0028] S5. As the movable rod moves upward, the sliding rod drives the round plug to move upward, opening the bottom channel of the drain cylinder, allowing seawater to flow into the drain pipe and return to the annular chamber through the return pipe, thus realizing the renewal and circulation of seawater in this temperature zone; then, the motor is controlled to run again, driving the sealing plug to rotate, so that the water passage is aligned with the adjacent flow passage.
[0029] S6. Seawater from the corresponding temperature zone within the annular chamber flows into the water circulation tank through the circulation channel, contacts the sensor probe, and after stabilizing, records the temperature data measured by the sensor again through the data acquisition equipment. Subsequently, steps S3 to S5 are repeated, allowing the sensors in a pair of sleeves to undergo two tests: a stepped temperature scale test with gradually increasing temperature and a dynamic response test with rapid temperature changes. Real-time calibration and verification are performed using thermometers built into each temperature zone of the annular chamber, thus completing the comprehensive temperature performance test of the sensors.
[0030] Compared with the prior art, the beneficial effects of the present invention are:
[0031] 1. The temperature testing equipment and method for the marine biosensor, by setting up an annular chamber and regularly distributed heat insulation plates inside, divides the seawater inside the chamber into multiple independent temperature zones. Each temperature zone can be heated and maintained at a different temperature by heating tubes, forming a stable and gradually changing temperature gradient environment. Combined with a rotatable sealing plug and a water channel, the sensor can rotate with the sealing plug. In a single test, a pair of sensors can complete two test modes in parallel: stepped heating and dynamic response. This not only avoids the inconvenience of frequently changing the constant temperature medium in traditional tests, but also improves test efficiency and the accuracy of temperature switching.
[0032] 2. The temperature testing equipment and method for the marine biosensor, through the drainage structure in the circulation mechanism, can automatically trigger the drainage and reset mechanism when the water tank moves above the drainage cylinder. This allows the original contact seawater to be quickly drained into the drainage pipe and returned to the annular chamber through the return pipe before the sensor switches temperature zones, avoiding the mixing of seawater of different temperatures at the probe. This ensures that the water temperature contacted by the sensor is pure and consistent during each test, maintaining the independence of the temperature in each temperature zone and improving the reliability and repeatability of the test data. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0034] Figure 2 This is a cross-sectional view of the overall structure of the present invention;
[0035] Figure 3 This is a cross-sectional schematic diagram of the constant temperature chamber in this invention;
[0036] Figure 4 This is a schematic diagram of the rotating mechanism in this invention;
[0037] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of part A in the middle;
[0038] Figure 6 This is a schematic diagram of the circulation mechanism in this invention;
[0039] Figure 7 This is a partial cross-sectional schematic diagram of the circulation mechanism in this invention;
[0040] Figure 8 This is a cross-sectional schematic diagram of the movable part in this invention;
[0041] Figure 9 This is a schematic diagram of the sealing plate in this invention;
[0042] Explanation of reference numerals in the attached figures:
[0043] 100. Constant temperature chamber; 110. Circular chamber body; 120. Concave chamber body; 121. Flow channel; 130. Heating tube; 140. Heat insulation plate; 150. Fixed bottom chamber; 160. Top cover; 170. Support frame;
[0044] 200. Rotating mechanism; 210. Sealing plug; 211. Water channel; 220. Sleeve; 221. Sealing ring; 230. Hoop ring; 240. Motor; 250. Shaft; 260. Shaft gear; 270. Ring gear;
[0045] 300. Circulation mechanism; 310. Drainage cylinder; 311. Drainage trough; 320. Drainage pipe; 330. Moving part; 331. Fixed pipe; 332. Moving rod; 333. Protrusion; 334. Sealing plate; 3340. Spiral groove; 3341. Plate surface slot; 335. Spring; 336. Slide rod; 337. Round plug; 340. Water pump; 350. Return pipe. Detailed Implementation
[0046] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.
[0047] Please see Figures 1-3 As shown, this embodiment provides the following technical solution:
[0048] A temperature testing device for a marine biological sensor includes a constant temperature chamber 100, a rotating mechanism 200 disposed inside the constant temperature chamber 100, and several circulation mechanisms 300 regularly distributed inside the rotating mechanism 200.
[0049] Specifically, the constant temperature chamber 100 includes a concave chamber body 120, and the upper and lower walls of the concave chamber body 120 are provided with several regularly distributed and vertically connected flow channels 121.
[0050] Furthermore, the constant temperature chamber 100 also includes an annular chamber body 110, several heating pipes 130 regularly distributed on the inner wall of the annular chamber body 110, several heat insulation plates 140 regularly welded in pairs to the inner wall of the annular chamber body 110, a fixed bottom chamber 150 fixedly connected to the bottom surface of the annular chamber body 110 by bolts, a top cover 160 snapped and fixed to the top surface of the annular chamber body 110, and a bracket 170 welded and fixed to the outer wall of the annular chamber body 110.
[0051] Furthermore, the concave chamber 120 is welded and fixed to the annular chamber 110, and a gap is left between the outer wall of the concave chamber 120 and the inner wall of the annular chamber 110 for seawater to pass through. Seawater of different temperatures is injected into the interior of the annular chamber 110 between several adjacent heat insulation plates 140.
[0052] Furthermore, the annular chamber 110 is used to hold the seawater for testing, the concave chamber 120 provides a rotation range for the structures in the rotating mechanism 200, the flow channel 121 is used for seawater circulation, and the regularly distributed heat insulation plates 140 on the inner wall of the annular chamber 110 divide the interior of the annular chamber 110 into several different areas. After the heating pipe 130 is activated, it heats the seawater in the corresponding area to different temperatures, forming independent temperature zones with progressively increasing and relatively stable temperatures. The fixed bottom chamber 150 and the support 170 provide a platform for the structures in the rotating mechanism 200 and the circulation mechanism 300, and the top cover 160 prevents heat loss during testing. This setup creates a stable, zoned temperature testing environment. Through separation and independent heating, a continuous and controllable temperature gradient is formed, simulating real ocean temperature changes and providing accurate and stable calibration conditions for the sensor.
[0053] Please see Figures 4-5 As shown, in this embodiment, the rotating mechanism 200 includes a sealing plug 210 that rotates within the concave chamber 120 and a pair of sleeves 220 disposed on the outer wall of the sealing plug 210 for placing sensors. Inside the sealing plug 210, at the end of the sleeves 220, there is a water channel 211 that runs vertically through and is adapted to the size of the flow channel 121.
[0054] Specifically, the rotating mechanism 200 also includes a clamp 230 that is snapped and fixed to the outer end of the sleeve 220, a motor 240 that is fixed to the outer wall of the fixed base 150 by bolts, a rotating shaft 250 that is coaxially connected to the output shaft of the motor 240, a shaft tooth 260 sleeved on the end of the rotating shaft 250, and a ring tooth 270 sleeved on the outer wall of the sealing plug 210.
[0055] Furthermore, a sealing ring 221 is adhered to the inner end of the sleeve 220, the rotating shaft 250 is rotatably connected to the inside of the bracket 170, the shaft tooth 260 is fixedly connected to the end of the rotating shaft 250 by a snap pin, and the ring tooth 270 is snapped and fixed to the outer wall of the sealing plug 210 and meshes with the shaft tooth 260.
[0056] Furthermore, the motor 240 drives the rotating shaft 250 to rotate, and the meshing of the shaft gear 260 and the ring gear 270 drives the sealing plug 210 to rotate, allowing the sealing plug 210 to rotate within the concave chamber 120. When the water channel 211 is connected to the flow channel 121, seawater in the constant temperature chamber 100 flows into the water channel 211 and contacts the end probe of the sensor. The sleeve 220 is used to place the sensor, and the sealing ring 221, in conjunction with the clamp ring 230, is used to ensure the stability of the sensor after it is fixed. The sealing plug 210 has two sleeves 220. When the motor 240 controls the rotation of the sealing plug 210, the sensor in one sleeve passes through independent temperature zones with increasing temperatures in sequence, thus performing a stepped temperature scale test. The sensor in the other sleeve, as the sealing plug 210 rotates, passes through temperature zones with fluctuating temperatures, thus performing a dynamic temperature response test. This setup utilizes a two-tube 220 design, allowing a pair of sensors to perform both stepped heating and dynamic response test modes in parallel during a single test.
[0057] Please see Figures 6-9 As shown, in this embodiment, the circulation mechanism 300 includes a drainage cylinder 310, a movable rod 332 disposed within the drainage cylinder 310, a pair of protrusions 333 disposed on the outer wall of the movable rod 332, a sealing plate 334 sleeved on the outer side of the movable rod 332, and a spring 335 disposed on the bottom surface of the movable rod 332. The top surface of the drainage cylinder 310 is provided with a pair of drainage grooves 311, and the inner wall and top circular plate of the sealing plate 334 are respectively provided with a pair of spiral grooves 3340 and a pair of plate surface slots 3341. After the water passage 211 moves above the drainage cylinder 310, the movable rod 332 moves upward under the force of the spring 335, driving the protrusions 333 to move along the spiral grooves 3340, causing the sealing plate 334 to rotate and allowing the drainage groove 311 to connect with the water passage 211, thus allowing seawater in the water passage 211 to flow into the drainage cylinder 310.
[0058] Specifically, the drain cylinder 310 is snapped and fixed to the bottom surface of the concave chamber 120. A circular hole is provided at the center of the top surface of the drain cylinder 310, and the bottom end of the drain cylinder 310 is connected to the drain pipe 320 through a bent pipe. The top end of the drain pipe 320 is snapped and fixed to the bottom surface of the annular chamber 110.
[0059] Furthermore, the circulation mechanism 300 also includes a movable part 330, which includes a fixed tube 331 sleeved on the outside of the movable rod 332, a slide rod 336 snapped onto the bottom surface of the movable rod 332, and a round plug 337 heat-fused to the bottom end of the slide rod 336. The end of the movable rod 332 is hemispherical.
[0060] Furthermore, the fixed tube 331 is snapped and fixed to the inner wall of the drain cylinder 310, the movable rod 332 slides inside the fixed tube 331, the protrusion 333 is snapped and fixed to the outer wall of the movable rod 332, the sealing plate 334 is rotatably connected to the inner wall of the drain cylinder 310, the size of the slot 3341 on the plate surface is adapted to the size of the drain groove 311, the bottom end of the spring 335 abuts against the inner bottom surface of the fixed tube 331, the sliding rod 336 slides on the bottom surface of the fixed tube 331, and when the movable rod 332 retracts to the inside of the sealing plate 334, the round plug 337 seals the bottom end of the drain cylinder 310.
[0061] Furthermore, the bottom end of the drain pipe 320 is also connected to a water pump 340 which is fixed to the inner wall of the fixed bottom compartment 150 by screws. The outlet end of the water pump 340 is connected to a return pipe 350, and the top end of the return pipe 350 extends to the bottom of the top cover 160.
[0062] Furthermore, at the start of the test, the water pump 340 in the circulation mechanism 300 is activated, so that the seawater at the bottom of the annular chamber 110 flows back to the upper part of the annular chamber 110 through the drain pipe 320 and the return pipe 350, forming an internal circulation of seawater to maintain a uniform and stable temperature in each temperature zone.
[0063] Furthermore, when the water passage 211 and the flow channel 121 are misaligned and the water is moved above the drain cylinder 310 in the same temperature zone, the movable rod 332 moves upward under the action of the spring 335, pushing the protrusion 333 to move along the spiral groove 3340, causing the sealing plate 334 to rotate, so that the drain cylinder 311 and the water passage 211 are connected. The seawater in the water passage 211 flows into the drain cylinder 310. At the same time as the movable rod 332 moves upward, the slide rod 336 drives the round plug 337 to move upward, opening the bottom channel of the drain cylinder 310, allowing the seawater to flow into the drain pipe 320, and return to the annular chamber 110 through the return pipe 350, realizing the renewal and circulation of seawater in this temperature zone. This setting ensures the accuracy of the test and the stability of the environment. Its drainage and circulation mechanism can automatically update the seawater in contact with the sensor when switching temperature zones, avoid temperature mixing, and continuously circulate the water to maintain the temperature uniformity of each temperature zone.
[0064] The temperature testing method for a marine biosensor of the present invention, using the temperature testing equipment for the aforementioned marine biosensor, includes the following steps;
[0065] S1. First, the operator inserts the marine biological sensor to be tested into the sleeve 220 of the rotating mechanism 200, tightens the hoop 230 to fix the sensor, injects seawater into the annular chamber 110 of the constant temperature chamber 100, and starts several heating tubes 130 to heat the seawater between adjacent heat insulation plates 140 to different temperatures, forming independent temperature zones with progressively increasing and relatively stable temperatures.
[0066] S2. At the same time, the water pump 340 in the circulation mechanism 300 is started, so that the seawater at the bottom of the annular chamber 110 flows back to the upper part of the annular chamber 110 through the drain pipe 320 and the return pipe 350, forming an internal circulation of seawater to maintain a uniform and stable temperature in each temperature zone, and to monitor the seawater temperature in the initial temperature zone where the sensor is located until the reading stabilizes, and then record it through an external data acquisition device.
[0067] S3. Next, start the motor 240 to drive the rotating shaft 250 to rotate. Through the meshing of the shaft tooth 260 and the ring tooth 270, drive the sealing plug 210 to rotate, so that the water channel 211 and the flow channel 121 are misaligned and moved to the top of the drain cylinder 310 in the same temperature zone.
[0068] S4. At this time, the movable rod 332 moves upward under the action of the spring 335, pushing the protrusion 333 to move along the spiral groove 3340, driving the sealing plate 334 to rotate, so that the drainage groove 311 is connected to the water passage groove 211, and the seawater in the water passage groove 211 flows into the drainage cylinder 310.
[0069] S5. As the movable rod 332 moves upward, the sliding rod 336 drives the round plug 337 to move upward, opening the bottom channel of the drain cylinder 310, allowing seawater to flow into the drain pipe 320, and return to the annular chamber 110 through the return pipe 350, realizing the renewal and circulation of seawater in this temperature zone; then, the motor 240 is controlled to run again, driving the sealing plug 210 to rotate, so that the water channel 211 is aligned with the adjacent flow channel 121;
[0070] S6. Seawater in the corresponding temperature zone within the annular chamber 110 flows into the water channel 211 through the flow channel 121, contacts the sensor probe, and after stabilizing, records the temperature data measured by the sensor again through the data acquisition device. Subsequently, steps S3 to S5 are repeated, allowing the sensors in a pair of sleeves 220 to perform a stepped temperature scale test with gradually increasing temperature and a dynamic response test with rapid temperature changes. Real-time calibration and verification are performed using the thermometers built into each temperature zone of the annular chamber 110, thereby completing the comprehensive temperature performance test of the sensor.
[0071] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the specification and its equivalents.
Claims
1. A temperature testing device for a marine biological sensor, characterized in that: It includes a constant temperature chamber, a rotating mechanism located inside the constant temperature chamber, and several circulation mechanisms regularly distributed inside the rotating mechanism. The constant temperature chamber includes a concave chamber body. Several regularly distributed and vertically connected flow channels are opened on the upper and lower walls of the concave chamber body. The rotating mechanism includes a sealing plug that rotates inside the concave chamber body and a pair of sleeves set on the outer wall of the sealing plug for placing sensors. A water passage channel that is vertically connected and adapted to the size of the flow channel is opened at the end of the sleeve inside the sealing plug. After the water passage channel is connected to the flow channel, seawater in the constant temperature chamber flows into the water passage channel and contacts the end probe of the sensor. The constant temperature chamber also includes an annular chamber body, several heating pipes regularly distributed on the inner wall of the annular chamber body, several heat insulation plates regularly welded in pairs to the inner wall of the annular chamber body, a fixed bottom chamber fixed to the bottom surface of the annular chamber body by bolts, a top cover snapped and fixed to the top surface of the annular chamber body, and a bracket welded and fixed to the outer wall of the annular chamber body. The concave chamber is welded and fixed to the annular chamber. A gap is left between the outer wall of the concave chamber and the inner wall of the annular chamber to allow seawater to pass through. Seawater of different temperatures is injected into the annular chamber between several adjacent heat insulation plates. The circulation mechanism includes a drainage cylinder, a movable rod disposed inside the drainage cylinder, a pair of protrusions disposed on the outer wall of the movable rod, a sealing plate sleeved on the outer side of the movable rod, and a spring disposed on the bottom surface of the movable rod. The top surface of the drainage cylinder is provided with a pair of drainage grooves. The inner wall of the sealing plate and the top circular plate are respectively provided with a pair of spiral grooves and a pair of plate grooves. After the water passage is moved above the drainage cylinder, the movable rod moves upward under the action of the spring, driving the protrusions to move along the spiral grooves, causing the sealing plate to rotate and connecting the drainage groove with the water passage, allowing the seawater in the water passage to flow into the drainage cylinder.
2. The temperature testing device for marine biological sensors according to claim 1, characterized in that: The rotating mechanism also includes a clamping ring fixed to the outer end of the sleeve, a motor fixed to the outer wall of the fixed bottom chamber by bolts, a rotating shaft coaxially connected to the output shaft of the motor, shaft teeth sleeved on the end of the rotating shaft, and ring teeth sleeved on the outer wall of the sealing plug.
3. The temperature testing device for marine biological sensors according to claim 2, characterized in that: A sealing ring is adhered to the inner end of the sleeve. The rotating shaft is rotatably connected to the inside of the bracket. The shaft teeth are fixedly connected to the end of the rotating shaft by a snap pin. The ring teeth are snapped and fixed to the outer wall of the sealing plug and mesh with the shaft teeth.
4. The temperature testing device for marine biological sensors according to claim 3, characterized in that: The drainage cylinder is snapped and fixed to the bottom surface of the concave chamber. A circular hole is opened at the center of the top surface of the drainage cylinder, and the bottom end of the drainage cylinder is connected to a drainage pipe through a bent pipe. The top end of the drainage pipe is snapped and fixed to the bottom surface of the annular chamber.
5. The temperature testing device for marine biological sensors according to claim 4, characterized in that: The circulation mechanism also includes a movable part, which includes a fixed tube sleeved on the outside of the movable rod, a slide rod snapped onto the bottom surface of the movable rod, and a round plug heat-fused to the bottom end of the slide rod. The end of the movable rod is hemispherical.
6. The temperature testing device for marine biological sensors according to claim 5, characterized in that: The fixed tube is snapped and fixed to the inner wall of the drain cylinder. The movable rod slides inside the fixed tube. The protrusion is snapped and fixed to the outer wall of the movable rod. The sealing plate is rotatably connected to the inner wall of the drain cylinder. The size of the slot on the plate is adapted to the size of the drain groove. The bottom end of the spring abuts against the inner bottom surface of the fixed tube. The sliding rod slides on the bottom surface of the fixed tube. When the movable rod retracts into the interior of the sealing plate, the round plug seals the bottom end of the drain cylinder.
7. The temperature testing device for marine biological sensors according to claim 6, characterized in that: The bottom end of the drain pipe is also fitted with a water pump that is fixed to the inner wall of the fixed bottom compartment by screws. The outlet end of the water pump is fitted with a return pipe, and the top end of the return pipe extends to the bottom of the top cover.
8. A method for testing the temperature of a marine biosensor, using the temperature testing device for the marine biosensor as described in claim 7, characterized in that, Includes the following steps: S1. First, the operator inserts the marine biological sensor to be tested into the sleeve in the rotating mechanism, tightens the hoop to fix the sensor, injects seawater into the annular chamber of the constant temperature chamber, and starts several heating tubes to heat the seawater between adjacent heat insulation plates to different temperatures, forming independent temperature zones with progressively increasing and relatively stable temperatures. S2. At the same time, the water pump in the circulation mechanism is started, so that the seawater at the bottom of the annular chamber flows back to the upper part of the annular chamber through the drain pipe and return pipe, forming an internal circulation of seawater to keep the temperature of each temperature zone uniform and stable, and monitors the seawater temperature in the initial temperature zone where the sensor is located until the reading is stable, and then records it through the external data acquisition equipment. S3. Next, start the motor to drive the rotating shaft to rotate. Through the meshing of the shaft teeth and ring teeth, the sealing plug is driven to rotate, so that the water passage groove and the flow groove are misaligned and moved to the top of the drain cylinder in the same temperature zone. S4. At this time, the movable rod moves upward under the action of the spring, pushing the protrusion to move along the spiral groove, driving the sealing plate to rotate, so that the drainage groove and the water passage groove are connected, and the seawater in the water passage groove flows into the drainage cylinder. S5. As the movable rod moves upward, the sliding rod drives the round plug to move upward, opening the bottom channel of the drain cylinder, allowing seawater to flow into the drain pipe and return to the annular chamber through the return pipe, thus realizing the renewal and circulation of seawater in this temperature zone; then, the motor is controlled to run again, driving the sealing plug to rotate, so that the water passage is aligned with the adjacent flow passage. S6. Seawater from the corresponding temperature zone within the annular chamber flows into the water circulation tank through the circulation channel, contacts the sensor probe, and after stabilizing, records the temperature data measured by the sensor again through the data acquisition equipment. Subsequently, steps S3 to S5 are repeated, allowing the sensors in a pair of sleeves to undergo two tests: a stepped temperature scale test with gradually increasing temperature and a dynamic response test with rapid temperature changes. Real-time calibration and verification are performed using thermometers built into each temperature zone of the annular chamber, thus completing the comprehensive temperature performance test of the sensors.