CN213068035U - Compensation micro-pressure meter - Google Patents
Compensation micro-pressure meter Download PDFInfo
- Publication number
- CN213068035U CN213068035U CN202022493454.0U CN202022493454U CN213068035U CN 213068035 U CN213068035 U CN 213068035U CN 202022493454 U CN202022493454 U CN 202022493454U CN 213068035 U CN213068035 U CN 213068035U
- Authority
- CN
- China
- Prior art keywords
- component
- container
- reflector
- lifting
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a compensation micromanometer relates to instrument and equipment technical field, and the main objective provides a compensation micromanometer that can reduce measuring error. The utility model discloses a main technical scheme does: a compensated micromanometer, comprising: a fixing member for fixing the container on the base; the mobile component, displacement sensor sets up on the base, the lift track sets up on the base, the elevating platform sets up on the lift track, first removal container part sets up on the elevating platform, first removal container part includes laser displacement part and reflection part, laser displacement part sets up the upper portion at reflection part, it communicates each other through first pipe with fixed container to load the cavity, the reflector sets up in loading the cavity, stabilizing support swing joint is in the reflector, the treater is connected respectively in transmitter and receiver, the transmitter can be towards reflector transmitted light, the receiver can receive the light of reflector reflection. The utility model discloses mainly used pressure measurement.
Description
Technical Field
The utility model relates to an instrumentation technical field especially relates to a compensation micromanometer.
Background
The pressure metering comprises four parts, namely ultra-micro pressure, medium pressure, high pressure and vacuum, and each part is provided with a separate verification system. The national calibration system stipulates that the measurement range of the micro pressure is-2.5 kPa, and the micro pressure standard mainly comprises a compensation type pressure gauge, a liquid pressure gauge, a digital pressure gauge and a micro pressure piston type pressure gauge. The micro-pressure measurement is widely applied to key fields and priority subjects contained in the national outline of the medium-long-term scientific and technical development planning, and particularly the development and utilization of energy, water and mineral resources, environmental monitoring and protection, modern agriculture, manufacturing industry, pharmaceutical industry, transportation industry, national defense, large airplane manufacturing and other industries, which have no departure from micro-pressure measurement. For example, altimeters, airspeeds, and atmospheric data testers in aerospace, aviation, and large aircraft manufacturing utilize micro-and micro-differential pressure measurement techniques to perform combined fly height, flight speed, and atmospheric data measurements. In many major, leading-edge technical studies in our country, micro-pressure metering plays a significant role.
The existing compensation type micro-manometer is based on the U-shaped pipe pressure measurement principle, forms liquid column height difference under the pressure action, changes the position of a movable container by rotating a screw rod with scales, enables the liquid level to reach the balance position again by observing the reflection position of a sharp head and the water surface in the container, and reads according to the water column height difference corresponding to the scales. This instrument has the following disadvantages in practical use:
firstly, the pressure working point must be set by manually dialing the screw rod, each turn is only lifted by 2mm, the full range of 2.5kPa corresponds to 250 mm, 125 turns are needed, the screw rod is worn in frequent rotation, and errors are brought to reading;
secondly, the position of the tip and the water reflection must be very carefully adjusted during the reading, which is time-consuming and labor-consuming and also causes a large measurement error. When the compensation pressure gauge is measured, the balance position of the two pressure gauges is adjusted at the same time, when the standard pressure gauge is adjusted in balance, the balance of the pressure gauge to be detected can be changed, and when the balance position of the pressure gauge to be detected is adjusted, the balance of the standard pressure gauge can be destroyed;
thirdly, the position of the container is changed by rotating the screw rod by an angle, the rotating angle of the screw rod corresponds to the liquid column change of a fixed quantitative value, namely the pressure change, and the machining precision and the shape error of the screw rod and the matching condition of a mechanical structure directly influence the reading accuracy;
fourthly, when the compensation type micro-pressure meter is in balance adjustment, the liquid level condition of only one container can be observed, in actual measurement, liquid can generate a wall hanging phenomenon, so that the volume of the liquid is changed, the volume change temperature of the connecting pipeline under the action of pressure, the volume change of the connecting pipeline under the action of pressure and the evaporation of the liquid can also change the volume, and thus the actual liquid column difference can deviate from the reading indicated by the dial plate.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a compensated micro-pressure gauge, and mainly aims to provide a compensated micro-pressure gauge capable of reducing measurement errors.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the embodiment of the utility model provides a compensation micromanometer, include:
the fixing component comprises a base and a fixing container, and the fixing container is arranged on the base and used for loading liquid media;
the mobile component comprises a lifting component, a displacement sensor and a first mobile container component, the displacement sensor is arranged on the base, the lifting component comprises a lifting table and a lifting track, the lifting track is arranged on the base, the lifting table is arranged on the lifting track, the first mobile container component is arranged on the lifting table, the first mobile container component comprises a laser displacement component and a reflection component, the laser displacement component is arranged on the upper portion of the reflection component, the reflection component comprises a stabilizing support, a reflector and a loading cavity, the loading cavity is communicated with the fixed container through a first conduit, the reflector is arranged in the loading cavity, the stabilizing support is movably connected with the reflector, and the laser displacement component comprises a processor, a transmitter and a receiver, the processor is respectively connected with the emitter and the receiver, the emitter can emit light towards the reflector, and the receiver can receive the light reflected by the reflector.
Further, the reflector includes reflection platform, floating platform and adjustable shelf, floating platform sets up in the loading cavity, the adjustable shelf sets up floating platform's both ends, and swing joint in stabilizing support, reflection platform sets up floating platform's middle part, reflection platform has plane of reflection for light reflection.
Further, the stabilizing support is provided with a first notch, a second notch and a light hole, the first notch and the second notch are arranged at two ends of the floating platform, the movable frame penetrates through the first notch and the second notch respectively, and the light hole is arranged between the reflecting platform and the laser displacement component.
Further, the laser displacement component further comprises a lens, and the lens is arranged at the lower part of the receiver.
Further, a second moving container part and a third moving container part, which are respectively fixedly connected to the base and disposed at both sides of the fixed container.
Furthermore, the lifting component also comprises a driving component, the driving component is arranged at the top of the fixed container, and the output end of the driving component is connected to the lifting rail and used for driving the lifting rail to rotate.
Furthermore, the displacement sensor is a grating ruler.
Further, the inner wall surface of the fixed container is covered with a wall-hanging prevention coating.
Further, the spirit level sets up on the base.
Further, the leveling part is arranged at the bottom of the base.
Compared with the prior art, the utility model discloses following technological effect has:
in the technical scheme provided by the embodiment of the utility model, the fixing part is used for fixing the fixing container, the fixing part comprises a base and the fixing container, and the fixing container is arranged on the base and is used for loading liquid medium; the moving component is used for obtaining the change of the page height through the liquid level change in the moving container component, thereby calculating the pressure difference, the moving component comprises a lifting component, a displacement sensor and a moving container component, the displacement sensor is arranged on a base, the lifting component comprises a lifting platform and a lifting track, the lifting track is arranged on the base, the lifting platform is arranged on the lifting track, the moving container component is arranged on the lifting platform, the moving container component comprises a laser displacement component and a reflecting component, the laser displacement component is arranged on the upper part of the reflecting component, the reflecting component comprises a stabilizing support, a reflecting body and a loading cavity, the loading cavity is mutually communicated with the fixed container through a first conduit, the reflecting body is arranged in the loading cavity, the stabilizing support is movably connected with the reflecting body, the laser displacement component comprises a processor, a transmitter and a receiver, the processor is respectively connected with the transmitter, the emitter can emit light towards the reflector, the receiver can receive the light reflected by the reflector, compared with the prior art, the position of a movable container is changed by rotating a screw rod with scales, the liquid level reaches a balance position again by observing the reflection positions of a tip and the water surface in the container, reading is carried out according to the height difference of a water column corresponding to the scales, the setting of a pressure working point is carried out by manually dialing a screw rod, each circle of the pressure working point is only lifted by 2mm, the full range of 2.5kPa corresponds to about 250 mm and needs to be rotated by 125 circles, labor is wasted, the screw rod is worn in frequent rotation, errors are brought to the reading, the positions of the tip and the reflection position of the water surface need to be adjusted very carefully during the reading, time and labor are wasted, great measurement errors are brought, when the compensation pressure gauge is measured, the two pressure gauges are adjusted at the balance position simultaneously, in the technical scheme, the page in the loading cavity and the page in the fixed container are kept consistent, then a set working point is input into the single chip microcomputer, the lifting platform drives the movable container part to move for a corresponding displacement distance, the displacement sensor reads the position of the movable container part to obtain the actual displacement distance, then pressure gas is introduced into the fixed container, so that liquid in the fixed container enters the loading cavity through the first conduit, the emitter emits light towards the reflector, the receiver can receive the light reflected by the reflector, and the actual pressure value of the pressure gas introduced into the fixed container is calculated by comparing the distance between two displacements of the reflector, thereby reach the technological effect that reduces measuring error to, whole process is controlled through the singlechip, does not need artificial manual to rotate the screw rod, and simultaneously, also need not the human eye to observe and carry out the degree, has realized full automatic measure.
Drawings
Fig. 1 is a schematic structural diagram of a compensated micro-manometer according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first movable container part according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a use state of a first movable container part according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1 to 3, an embodiment of the present invention provides a compensated micromanometer, including:
the fixing component comprises a base 11 and a fixing container 12, wherein the fixing container 12 is arranged on the base 11 and is used for loading liquid media;
a moving part including a lifting part 21, a displacement sensor 22 and a first moving container part 23, the displacement sensor 22 is disposed on the base 11, the lifting part 21 includes a lifting table 211 and a lifting rail 212, the lifting rail 212 is disposed on the base 11, the lifting table 211 is disposed on the lifting rail 212, the first moving container part 23 is disposed on the lifting table 211, the first moving container part 23 includes a laser displacement part 25 and a reflection part 24, the laser displacement part 25 is disposed on the upper portion of the reflection part 24, the reflection part 24 includes a stable bracket 241, a reflector 242 and a loading cavity 243, the loading cavity 243 and the fixed container 12 are communicated with each other through a first conduit 13, the reflector 242 is disposed in the loading cavity 243, the stable bracket 241 is movably connected to the reflector 242, the laser displacement part 25 includes a processor 251, a transmitter 252 and a receiver 253, the processor 251 is respectively connected to the transmitter 252 and the receiver 253, the transmitter 252 can transmit light toward the reflector 242, and the receiver 253 can receive light reflected by the reflector 242.
In the technical solution provided by the embodiment of the present invention, the fixing component is used for fixing the fixing container 12, the fixing component includes a base 11 and the fixing container 12, the fixing container 12 is arranged on the base 11 and is used for loading liquid medium; the moving component is used for obtaining the change of the page height through the liquid level change in the first moving container component 23 so as to calculate the pressure difference, the moving component comprises a lifting component 21, a displacement sensor 22 and the first moving container component 23, the displacement sensor 22 is arranged on the base 11, the lifting component 21 comprises a lifting table 211 and a lifting track 212, the lifting track 212 is arranged on the base 11, the lifting table 211 is arranged on the lifting track 212, the first moving container component 23 is arranged on the lifting table 211, the first moving container component 23 comprises a laser displacement component 25 and a reflection component 24, the laser displacement component 25 is arranged on the upper part of the reflection component 24, the reflection component 24 comprises a stabilizing support 241, a reflection body 242 and a loading cavity 243, the loading cavity 243 and the fixed container 12 are communicated with each other through a first conduit 13, 242 is arranged in the loading cavity 243, the stabilizing support 241 is movably connected to the reflection body 242, the laser displacement device 25 comprises a processor 251, a transmitter 252 and a receiver 253, the processor 251 is respectively connected with the transmitter 252 and the receiver 253, the transmitter 252 can emit light towards the reflector 242, the receiver 253 can receive the light reflected by the reflector 242, compared with the prior art, the position of a movable container is changed by rotating a screw rod with scales, the liquid level is enabled to reach an equilibrium position again by observing the reflection positions of the tip and the water surface in the container, reading is carried out according to the height difference of the water column corresponding to the scales, the setting of a pressure working point is carried out by manually dialing the screw rod, each circle only 2mm is lifted, the full scale 2.5kPa corresponds to about 250 mm, 125 circles are rotated, labor is wasted, the screw rod is worn in frequent rotation, reading errors are brought to the reading, and the reflection positions of the tip and the water surface must be very carefully adjusted during the reading, the technical scheme includes that when a compensation pressure gauge is measured, balance positions of two pressure gauges are adjusted simultaneously, when a standard pressure gauge is adjusted in balance, the balance of a detected pressure gauge can be changed, and when the balance position of the detected pressure gauge is adjusted, the balance of the standard pressure gauge can be damaged, in the technical scheme, a loading cavity 243 and a page in a fixed container 12 are kept consistent, then a set working point is input into a single chip microcomputer, a lifting table 211 drives a first movable container part 23 to move for a corresponding displacement distance, a displacement sensor 22 reads the position of the first movable container part 23 to obtain an actual displacement distance, then pressure gas is introduced into the fixed container 12, so that liquid in the fixed container 12 enters the loading cavity 243 through a first guide pipe 13, and a transmitter 252 transmits light rays towards a reflector 242, the receiver 253 can receive the light reflected by the reflector 242, and the actual pressure value of the pressure gas introduced into the fixed container 12 is calculated by comparing the distance between two displacements of the reflector 242, so that the technical effect of reducing the measurement error is achieved, the whole process is controlled by the single chip microcomputer, manual operation is not needed for rotating the screw rod, meanwhile, the degree is not needed to be observed by human eyes, and full-automatic measurement is realized.
The fixing part is used for fixing the fixing container 12, the fixing part comprises a base 11 and a fixing container 12, the fixing container 12 is arranged on the base 11 and used for loading liquid media, the fixing container 12 is filled with liquid, the liquid is usually water, the fixing container 12 is arranged on the base 11, the base 11 is flatly placed on a table top or the ground, and two ends of the base 11 are required to be in a parallel state, so that a level can be arranged on the base 11, or a leveling part is arranged at the bottom of the base 11, and the base 11 is conveniently leveled; the moving component is used for obtaining the change of the page height through the liquid level change in the first moving container component 23, so as to calculate the pressure difference, the moving component comprises a lifting component 21, a displacement sensor 22 and the first moving container component 23, the displacement sensor 22 is arranged on the base 11, the displacement sensor 22 adopts a grating ruler, the grating ruler is a measuring feedback device working by the optical principle of grating, the displacement distance of the first moving container component 23 can be accurately measured, the grating ruler belongs to the existing equipment and is not described herein any more, the lifting component 21 comprises a lifting platform 211 and a lifting track 212, the lifting track 212 is arranged on the base 11, the lifting platform 211 is arranged on the lifting track 212, the first moving container component 23 is arranged on the lifting platform 211, the first moving container component 23 comprises a laser displacement component 25 and a reflecting component 24, the laser displacement component 25 is arranged on the upper part of the reflecting component 24, the reflecting component 24 comprises a stabilizing support 241, a reflector 242 and a loading cavity 243, the loading cavity 243 is communicated with the fixed container 12 through a first conduit 13, the reflector 242 is arranged in the loading cavity 243, the stabilizing support 241 is movably connected to the reflector 242, the laser displacement component 25 comprises a processor 251, a transmitter 252 and a receiver 253, the processor 251 is respectively connected to the transmitter 252 and the receiver 253, the transmitter 252 can transmit light towards the reflector 242, the receiver 253 can receive light reflected by the reflector 242, the transmitter 252 adopts a semiconductor laser transmitter 252, the receiver 253 adopts a linear CCD array receiver 253, the processor 251 adopts an existing signal processor 251, firstly, zero differential pressure balance adjustment is carried out on the equipment, the liquid level of the first moving container component 23 is kept consistent with the liquid level of the fixed container 12, and the reading of a grating scale and a laser displacement meter are respectively cleared, a set working point height h is input into the lifting part 21 through a computer or a single chip microcomputer, the set working point height h is determined by the height difference between the liquid level of the first movable container part 23 and the liquid level of the fixed container 12, then the computer or the single chip microcomputer inputs a certain amount of pressure gas to the surface of the liquid level in the fixed container 12 through a pressure input device, the liquid in the fixed container 12 enters the loading cavity 243 through the first conduit 13, the liquid level in the loading cavity 243 is raised, the position of the reflector 242 is driven to be raised, the position of the reflector 242 can be adjusted through the stabilizing support 241, the reflector 242 can only move longitudinally, the processor 251 is respectively connected with the emitter 252 and the receiver 253, the emitter 252 can emit light towards the reflector 242, the receiver 253 can receive the light reflected by the reflector 242, before the pressure gas is introduced into the fixed container 12, the emitter 252 emits light toward the reflector 242, the receiver 253 can receive the light reflected by the reflector 242, so as to obtain a starting position of the reflector 242, after the liquid level in the loading cavity 243 is stabilized after the pressurized gas is introduced into the fixed container 12, the emitter 252 emits light toward the reflector 242, the receiver 253 can receive the light reflected by the reflector 242, so as to obtain a moving position of the reflector 242, the emitter 252 obtains a moving distance between the starting position and the moving position, and then according to the formula:
P＝ρgh
wherein, P is a pressure value;
ρ is the density of the liquid;
g is the local gravitational acceleration;
h is the relative height;
the actual pressure value of the pressurized gas supplied to the surface of the liquid surface in the fixed vessel 12 is calculated.
Further, the reflector 242 includes a reflecting platform 2421, a floating platform 2422 and movable frames 2423, the floating platform 2422 is disposed in the loading cavity 243, the movable frames 2423 are disposed at both ends of the floating platform 2422 and are movably connected to the stabilizing supports 241, the reflecting platform 2421 is disposed at the middle of the floating platform 2422, and the reflecting platform 2421 has a reflecting plane for reflecting light. In this embodiment, further defining the reflector 242, the reflector 242 needs to be kept horizontally, the reflector 242 comprises a reflecting platform 2421, a floating table 2422 and movable frames 2423, the floating table 2422 can float in the loading cavity 243, the movable frames 2423 are arranged at two ends of the floating table 2422, the movable frames 2423 are movably connected to the stabilizing bracket 241, enabling the movable frame 2423 to move longitudinally on the stabilizing frame 241, the reflective table 2421 is placed on the floating table 2422, furthermore, the reflection platform 2421 is fixed on the floating platform 2422, when the liquid in the fixed container 12 enters the loading cavity 243, the floating platform 2422 may shake, and therefore, when the liquid in the floating table 2422 and the loading cavity 243 is stable, the position of the reflecting table 2421 is detected by the laser displacement component 25, thereby achieving the technical effect of conveniently obtaining the initial position and the moving position of the reflection platform 2421.
Further, the stabilizing bracket 241 has a first recess and a second recess provided at both ends of the floating table 2422, the movable frame 2423 passes through the first and second recesses, respectively, and a light-transmitting hole 2411 provided between the reflecting table 2421 and the laser displacement unit 25. In the present embodiment, a stabilizing bracket 241 is further defined, two ends of the stabilizing bracket 241 are provided with a first notch and a second notch, the movable frame 2423 respectively passes through the first notch and the second notch, the first notch and the second notch are rectangular and are longitudinally arranged, so that the first notch and the second notch can limit the moving direction of the movable frame 2423, so that the movable frame 2423 can only longitudinally move along the extending direction of the first notch and the second notch, the light-transmitting hole 2411 is arranged in the middle position of the stabilizing bracket 241 and is located between the reflecting platform 2421 and the laser displacement component 25, so that the light emitted by the laser displacement component 25 can irradiate on the reflecting platform 2421, and the reflecting platform 2421 can reflect the light to the receiver 253, which not only can improve the detection precision, but also improves the applicability and convenience; optionally, the laser displacement component 25 further includes a first lens 254, the first lens 254 is disposed at a lower portion of the receiver 253, and the first lens 254 is generally a convex lens and is capable of focusing the light reflected by the reflection platform 2421 on the receiver 253, so as to achieve the technical effect of focusing the light; optionally, the second lens 255 is further disposed at a lower portion of the semiconductor laser emitter 252, and is capable of focusing light emitted from the semiconductor laser emitter 252 and irradiating the light onto the reflection stage 2421.
The laser displacement unit 25 uses the principle of optical triangulation to focus monochromatic light emitted from the semiconductor laser emitter 252 onto the reflection stage 2421 through the second lens 255. The reflected light is first collected and projected onto the linear CCD array receiver 253; the signal processor 251 calculates the position of the light spot on the CCD line array receiver 253 by trigonometric function to obtain the distance to the object with a measurement uncertainty of less than 7 μ (k 2) and a measurement range of 10 mm.
Further, the second moving container part 231 and the third moving container part 232 are fixedly coupled to the base 11, respectively, and are disposed at both sides of the fixed container 12. In this embodiment, a second moving container 231 and a third moving container 232 are added, the second moving container 231 and the third moving container 232 are respectively and fixedly connected to the base 11 and are disposed at two sides of the fixed container 12, the second moving container 231 and the third moving container 232 are respectively connected through a second conduit and a third conduit, that is, the second moving container 231 is connected to the fixed container 12 through the second conduit, the third moving container is connected to the fixed container 12 through the third conduit, the second moving container 231 and the third moving container 232 are used for detecting whether the equilibrium position of the fixed container 12 changes, and the structures of the second moving container 231 and the third moving container 232 are the same as those of the first moving container, and will not be described herein again.
Further, the lifting member 21 further includes a driving member 213, the driving member 213 is disposed at the top of the fixed container 12, and an output end of the driving member 213 is connected to the lifting rail 212 for driving the lifting rail 212 to rotate. In this embodiment, the lifting member 21 is further defined, and the driving member 213 is used for driving the lifting rail 212 to rotate, so as to drive the lifting platform 211 and the movable container member 23 to move longitudinally, thereby achieving the technical effect of driving the lifting platform 211 to move; optionally, the driving unit 213 is a program-controlled stepping motor, the lifting rail 212 is a ball screw, and the stepping motor drives the ball screw to move the lifting table 211 up and down along the ball screw. The verticality between the lifting rail 212 and the base is required to be less than 2', the parallelism of the lifting rail 212 is required to be less than 0.02mm, and the straightness of the lifting rail 212 is required to be less than 0.01mm, so that the lifting platform 211 can always keep the horizontal position of the platform in the up-and-down moving process, and the introduced measurement uncertainty is less than 3 ppm.
Further, the inner wall surface of the fixed container 12 is covered with a wall-hanging prevention coating. In this embodiment, the anti-wall-hanging coating is added, and since the inner wall of the fixed container 12 has a certain adhesive force, the medium adheres to the inner wall, thereby generating a wall-hanging phenomenon, and therefore, the anti-wall-hanging coating is disposed on the inner wall of the fixed container 12, and the anti-wall-hanging coating is usually a teflon coating, which can reduce the cohesion between liquid molecules, thereby achieving the technical effect of reducing the adhesive force of the inner surface of the fixed container 12 to the medium; optionally, an anti-hanging coating is disposed on an inner wall of the loading cavity 243, so as to achieve a technical effect of reducing an adhesion force of the inner surface of the loading cavity 243 to the medium.
Optionally, a temperature compensation device is added, the temperature compensation device is respectively arranged in the fixed container 12, the movable container part 23 and the first conduit 13, and can perform temperature monitoring and temperature compensation on the ambient temperature in the fixed container 12, the movable container part 23 and the first conduit 13, and in consideration of the density change of the liquid in the first conduit 13 under the action of pressure, the pressure recurrence calculation formula of the pressure gauge should be:
wherein Δ p is the pressure difference between the pressurization port and the reference port;
glis the local gravitational acceleration;
rho (h) is the density of the medium density under the action of the pressure of each layer and is a function of the height of the liquid column;
beta t is the temperature coefficient of the density of the medium;
h0the liquid column state when the pressure of the pressurizing port and the reference port are equal is determined by taking the value h0＝0；
h1Liquid column height difference of actual working points;
Δ T is the temperature difference from which the function ρ (h) is established;
the pressure difference between the pressurizing port and the reference port can be calculated through the formula, so that the detection accuracy is improved.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A compensated micro-manometer, comprising:
the fixing component comprises a base and a fixing container, and the fixing container is arranged on the base and used for loading liquid media;
the mobile component comprises a lifting component, a displacement sensor and a first mobile container component, the displacement sensor is arranged on the base, the lifting component comprises a lifting table and a lifting track, the lifting track is arranged on the base, the lifting table is arranged on the lifting track, the first mobile container component is arranged on the lifting table, the first mobile container component comprises a laser displacement component and a reflection component, the laser displacement component is arranged on the upper portion of the reflection component, the reflection component comprises a stabilizing support, a reflector and a loading cavity, the loading cavity is communicated with the fixed container through a first conduit, the reflector is arranged in the loading cavity, the stabilizing support is movably connected with the reflector, and the laser displacement component comprises a processor, a transmitter and a receiver, the processor is respectively connected with the emitter and the receiver, the emitter can emit light towards the reflector, and the receiver can receive the light reflected by the reflector.
2. The compensated micro-manometer of claim 1, wherein,
the reflector includes reflection platform, floating platform and adjustable shelf, floating platform sets up in the loading cavity, the adjustable shelf sets up floating platform's both ends to swing joint in stabilizing support, reflection platform sets up floating platform's middle part, reflection platform has plane of reflection for light beam.
3. The compensated micro-manometer of claim 2, wherein,
the stabilizing support is provided with a first notch, a second notch and a light hole, the first notch and the second notch are arranged at two ends of the floating platform, the movable frame penetrates through the first notch and the second notch respectively, and the light hole is arranged between the reflecting platform and the laser displacement component.
4. The compensated micro-manometer of claim 3, wherein,
the laser displacement component further comprises a first lens, and the first lens is arranged at the lower part of the receiver.
5. The compensated micro-manometer of claim 1, further comprising:
the second moving container part and the third moving container part are respectively fixedly connected to the base and are arranged on two sides of the fixed container.
6. Compensated micromanometer according to any of claims 1 to 5,
the lifting component further comprises a driving component, the driving component is arranged at the top of the fixed container, and the output end of the driving component is connected to the lifting rail and used for driving the lifting rail to rotate.
7. Compensated micromanometer according to any of claims 1 to 5,
the displacement sensor is a grating ruler.
8. Compensated micromanometer according to any of claims 1 to 5,
and the inner wall surface of the fixed container is covered with a wall-hanging prevention coating.
9. The compensated micromanometer of any one of claims 1 to 5, further comprising:
the gradienter is arranged on the base.
10. The compensated micromanometer of any one of claims 1 to 5, further comprising:
the leveling component is arranged at the bottom of the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022493454.0U CN213068035U (en) | 2020-11-02 | 2020-11-02 | Compensation micro-pressure meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022493454.0U CN213068035U (en) | 2020-11-02 | 2020-11-02 | Compensation micro-pressure meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213068035U true CN213068035U (en) | 2021-04-27 |
Family
ID=75563488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022493454.0U Active CN213068035U (en) | 2020-11-02 | 2020-11-02 | Compensation micro-pressure meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213068035U (en) |
-
2020
- 2020-11-02 CN CN202022493454.0U patent/CN213068035U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103217252B (en) | Movable container type high-precision micro-pressure detection device | |
| CN101464163B (en) | Straightness detecting method for platform normal point used for total station instrument check | |
| CN106441370B (en) | Full-automatic leveling rod calibrating device based on image recognition | |
| CN201322606Y (en) | Laser measuring instrument for crane deformation | |
| CN106441371B (en) | Special verification/calibration device for digital level | |
| TWI629452B (en) | Wireless tilt sensing system | |
| CN110455226A (en) | A kind of calibration system and method for the transmitting-receiving integrated straight line degree measurement of laser alignment | |
| CN102519424A (en) | Accelerometer mounting tool angle change monitoring system | |
| CN211042065U (en) | Barrel straightness detection ruler | |
| CN112197898A (en) | Compensation micro-pressure meter | |
| CN213068035U (en) | Compensation micro-pressure meter | |
| CN114324837A (en) | Contact method concrete expansion and contraction detection device and method based on laser ranging | |
| CN108692797A (en) | Float type level gauge calibrating installation peculiar to vessel | |
| CN111102918B (en) | Automatic measuring system of cubic mirror coordinate system | |
| CN114894159B (en) | High-precision double-shaft laser level meter based on single-beam interference image and measuring method | |
| CN114964181B (en) | High-precision double-shaft laser level meter based on wavefront homodyne interference and measuring method | |
| CN203561562U (en) | Bending rigidity testing device | |
| CN113432625A (en) | Calibration system and calibration method of hydrostatic level | |
| US4455876A (en) | Precision manometer gauge | |
| CN2893647Y (en) | Level measuring instrument | |
| Meyers et al. | A multiple manometer and piston gages for precision measurements | |
| CN211904897U (en) | Optical lever system | |
| CN206601126U (en) | A kind of electronic level with instrument height real―time precision measurment function | |
| CN107121078A (en) | A kind of piston special comprehensive measuring system based on temperature, difference in height and rotating speed | |
| CN207992450U (en) | A kind of laser ranging total powerstation instrument height measuring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |