CN112378574A - High-voltage switch cabinet SF6Barometer state recording device and method - Google Patents
High-voltage switch cabinet SF6Barometer state recording device and method Download PDFInfo
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- CN112378574A CN112378574A CN202011127844.4A CN202011127844A CN112378574A CN 112378574 A CN112378574 A CN 112378574A CN 202011127844 A CN202011127844 A CN 202011127844A CN 112378574 A CN112378574 A CN 112378574A
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- disc
- barometer
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- fixed disc
- reading pointer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/08—Means for indicating or recording, e.g. for remote indication
- G01L19/10—Means for indicating or recording, e.g. for remote indication mechanical
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/16—Dials; Mounting of dials
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- General Physics & Mathematics (AREA)
- Recording Measured Values (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The application discloses high tension switchgear SF6The device comprises a fixed disc, a locking assembly, an annular rotating disc, an annular first dial, a reading pointer, an annular recording disc and a recording pen; the middle part of the fixed disc is provided with an avoidance hole for avoiding the barometer; the locking component fastens the fixed disc and is connected with the barometer; the rotating disc, the first dial and the recording disc are sequentially arranged on the front surface of the fixed disc along the direction from the inner peripheral wall of the avoiding hole to the outer peripheral wall of the fixed disc, and are coaxial with the fixed disc; the reading pointer is arranged on the front face of the rotating disc along the radial direction of the fixed disc, the first end of the reading pointer extends into the front face area of the avoidance hole, and the second end of the reading pointer extends to the front face of the recording disc; the recording pen is movably connected with the fixed disk. The recording of the state of the sulfur hexafluoride barometer can be completed quickly and conveniently, and the visualization degree is good.
Description
Technical Field
The application relates to the technical field of auxiliary tools of high-voltage switch cabinets, in particular to an SF (sulfur hexafluoride) high-voltage switch cabinet6Barometer state recorderAnd a method.
Background
At present, operation and maintenance personnel of high-voltage switch cabinet equipment know SF in cabinet6The operation conditions of the (sulfur hexafluoride) gas pressure meter mainly comprise the following two modes: collecting SF through DTU (data transfer unit) of high-voltage switch cabinet monitoring device6Air pressure related data; secondly, when the operation and maintenance personnel of the equipment perform patrol in the patrol period day, the SF of the high-voltage switch cabinet is obtained on site6And (5) operating conditions of the air pressure meter. However, the two modes have some defects, namely, the SF in the cabinet acquired from the DTU of the high-voltage switch cabinet monitoring device6The air pressure related signals are of two kinds, namely current SF6The reading pointer of the barometer indicates normal signals and indicates alarm signals lower than a safety value, and the barometer cannot display SF in a plurality of inspection periods without specific numerical values6The state of the air pressure changes. Secondly, the reading pointer in the SF6 barometer of the high-voltage switch cabinet observed on site only reflects the current air pressure level, and during recording, more accurate reading recording can be realized only by adopting a corresponding auxiliary tool, so that the recording operation is more complicated, the recorded data is low in visualization degree, and the state change in the inspection cycle cannot be reflected more intuitively.
Disclosure of Invention
In view of the above, the first objective of the present application is to provide a high voltage switch cabinet SF6The barometer state recording device can quickly and conveniently record the state of the sulfur hexafluoride barometer, and the visualization degree is good.
To achieve the above technical object, the present application provides a high voltage switch cabinet SF6Barometer state recording device includes: the device comprises a fixed disc, a locking assembly, an annular rotating disc, an annular first dial, a reading pointer, an annular recording disc and a recording pen;
the middle part of the fixed disc is provided with an avoidance hole for avoiding the barometer;
the locking assembly fastens the fixed disc and the air pressure gauge to be connected;
the rotating disc, the first dial disc and the recording disc are sequentially arranged on the front surface of the fixed disc along the direction from the inner peripheral wall of the avoidance hole to the outer peripheral wall of the fixed disc, and are coaxial with the fixed disc;
the reading pointer is arranged on the front face of the rotating disc along the radial direction of the fixed disc, the first end of the reading pointer extends into the front face area of the avoidance hole, and the second end of the reading pointer extends to the front face of the recording disc;
the recording pen is movably connected with the fixed disc.
Further, the locking assembly includes at least two adjustable clamps;
the two adjustable clamps comprise clamping plates and screws;
the two clamping plates are symmetrically arranged in the avoidance hole, and a clamping cavity for clamping the barometer is formed between the two clamping plates;
the first end of the screw rod extends into the avoiding hole through the peripheral wall of the fixed disc and is rotationally connected with the clamping plate;
the screw rod is in threaded connection with the fixed disc.
Furthermore, a rotating head is arranged at the second end of the screw rod extending out of the fixed disc;
and an anti-slip pad is laid on the clamping surface of the clamping plate.
Further, the recording disc is detachably connected to the fixed disc.
Further, the second end of the reading pointer extends to the position of the peripheral edge of the front surface of the recording disc;
and the reading pointer forms an auxiliary marking section at a pointer section extending into the front surface of the recording disk.
Further, an axial bearing is arranged between the rotating disc and the fixed disc;
and a first shaft sleeve of the axial bearing is connected with the fixed disc, and a second shaft sleeve is connected with the rotating disc.
Furthermore, a mounting hole is formed in the rotating disc;
and the reading pointer is provided with a convex column which is movably inserted into the mounting hole.
Furthermore, a pen cavity is formed in the outer peripheral wall of the fixed disc;
the recording pen is movably inserted in the pen cavity.
Furthermore, a plurality of magnet blocks distributed around the circumference of the central axis of the fixed disk are embedded in the back surface of the fixed disk.
High-voltage switch cabinet SF6The barometer state recording method is applied to the barometer state recording device of the high-voltage switch cabinet SF6, and comprises the following steps:
rotating the rotating disc until the first end of the reading pointer is overlapped with the current air pressure pointer of the air pressure gauge, and determining the reading of the air pressure pointer and the corresponding scale mark of the reading pointer in the first dial;
and aligning the position of the scale mark on the recording disc by a recording pen to record the reading of the air pressure pointer and the tour time.
According to the technical scheme, the high-voltage switch cabinet SF provided by the application6The barometer state recording device is characterized in that a rotatable rotating disc is arranged on a fixed disc and used for driving a reading pointer to rotate, the reading pointer is arranged in the radial direction of the fixed disc, the first end of the reading pointer extends to the front area of an avoidance hole, the barometer state recording device can facilitate an operator to quickly align the barometer pointer in the barometer, and the second end of the reading pointer passes through a dial and is matched with the dial to realize quick reading of the current reading of the sulfur hexafluoride barometer. Because the recording disc and the dial are arranged adjacently, the recording pen can realize the quick recording of the scale mark of the dial where the reading pointer is aligned on the recording disc, and because the recording pen directly records the scale mark on the dial and corresponds to the dial, the whole body can present good visual record, and visually displays the state change of the sulfur hexafluoride barometer in the patrol period of an operator.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a high voltage switchgear SF provided in the present application6The barometer state recorder is provided with a sectional view of a second dial;
FIG. 2 is a high voltage switchgear SF as provided in the present application6The barometer state recording device is provided with a top view of a second dial;
FIG. 3 is a high voltage switchgear SF as provided in the present application6A partial schematic diagram of the combination application of a reading pointer of a barometer state recording device and a recording pen;
FIG. 4 shows a high-voltage switchgear SF as provided in the present application6A flow schematic diagram of a barometer state recording method;
in the figure: 1. fixing the disc; 2. a recording disk; 3. a first dial; 4. rotating the disc; 41. a reading pointer; 411. a chute; 5. a second dial; 61. a clamping plate; 611. a non-slip mat; 62. a screw; 63. Turning the head; 7. a stylus pen; 8. and a magnet block.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the embodiments in the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses high tension switchgear SF6A barometer state recording device and method.
Referring to fig. 1 and 2, a high voltage switch cabinet SF provided in the embodiment of the present application6One embodiment of the barometer status recording device and method comprises:
the device comprises a fixed disc 1, a locking assembly, a rotating disc 4, a first dial 3, a reading pointer 41, a recording disc 2 and a recording pen 7; the middle part of the fixed disc 1 is provided with an avoidance hole for avoiding the barometer; the locking component fastens the fixed disc 1 and is connected with the barometer; the rotating disc 4, the first dial 3 and the recording disc 2 are sequentially arranged on the front surface of the fixed disc 1 along the direction from the inner peripheral wall of the avoidance hole to the outer peripheral wall of the fixed disc 1, and are coaxial with the fixed disc 1; the reading pointer 41 is arranged on the front surface of the rotating disc 4 along the radial direction of the fixed disc 1, the first end of the reading pointer extends into the front surface area of the avoidance hole, and the second end of the reading pointer extends to the front surface of the recording disc 2; the recording pen 7 is movably connected with the fixed disc 1.
Specifically, the avoidance hole is used for avoiding the barometer, facilitating checking the barometer, and facilitating alignment of the reading pointer 41 with the barometer pointer in the barometer. During installation, the height of the front surface of the barometer is lower than the height of the reading pointer 41, the rotation of the reading pointer 41 is not affected, and the barometer is not limited. The recording table can be a conventional oil pen, the recording can be line drawing recording, time recording and the like, and the oil pen is convenient for subsequent erasing processing so as to facilitate the reuse of the recording plate.
According to the technical scheme, the high-voltage switch cabinet SF provided by the application6A state recording device of the air pressure meter,the rotatable rotating disc 4 is arranged on the fixed disc 1 and used for driving the reading pointer 41 to rotate, the reading pointer 41 is arranged in the radial direction of the fixed disc 1, the first end of the reading pointer extends to the front area of the avoidance hole, an operator can conveniently and quickly align the air pressure pointer in the air pressure gauge, the second end of the reading pointer passes through the first dial 3 and is matched with the first dial 3, and the current reading of the sulfur hexafluoride air pressure gauge can be quickly read. Because the recording disc 2 and the first dial 3 are arranged adjacently, the recording pen 7 can realize that the scale mark of the first dial 3 where the reading pointer 41 is aligned on the recording disc 2 is rapidly recorded, and because the recording pen directly records the scale mark on the recording disc 2 and has a corresponding relation with the first dial 3, the whole body can present good visual record, and visually display the state change of the sulfur hexafluoride barometer in the patrol period of an operator.
The high-voltage switch cabinet SF provided by the embodiment of the application6First embodiment of a barometer state recording device and method, the following is a high-voltage switch cabinet SF provided in this embodiment of the application6The second embodiment of the barometer status recording apparatus and method specifically refers to fig. 1 to 3.
High-voltage switch cabinet SF6Barometer state recording device includes: the device comprises a fixed disc 1, a locking assembly, a rotating disc 4, a first dial 3, a reading pointer 41, a recording disc 2 and a recording pen 7; the middle part of the fixed disc 1 is provided with an avoidance hole for avoiding the barometer; the locking component fastens the fixed disc 1 and is connected with the barometer; the rotating disc 4, the first dial 3 and the recording disc 2 are sequentially arranged on the front surface of the fixed disc 1 along the direction from the inner peripheral wall of the avoidance hole to the outer peripheral wall of the fixed disc 1, and are coaxial with the fixed disc 1; the reading pointer 41 is arranged on the front surface of the rotating disc 4 along the radial direction of the fixed disc 1, the first end of the reading pointer extends into the front surface area of the avoidance hole, and the second end of the reading pointer extends to the front surface of the recording disc 2; the recording pen 7 is movably connected with the fixed disc 1.
Further, the locking assembly comprises at least two adjustable clamps; each adjustable clamp comprises a clamping plate 61 and a screw 62; the two clamping plates 61 are symmetrically arranged in the avoidance hole, and a clamping cavity for clamping the barometer is formed between the two clamping plates; the first end of the screw rod 62 extends into the avoiding hole through the outer peripheral wall of the fixed disc 1 and is rotationally connected with the clamping plate 61; the screw 62 is in threaded connection with the fixed disc 1.
Specifically, through the cooperation of screw rod 62 and clamping plate 61, form adjustable size's centre gripping chamber, can adapt to the barometer of multiple size and use like this, screw rod 62 first end can be connected with clamping plate 61 through conventional rotatory connector, and is not particularly restricted. The length of the screw rod 62 extending into the avoidance hole is adjusted by rotating the screw rod 62, so that the size of a clamping cavity formed between the clamping plates 61 is adjusted. The number of the adjusting clamps may preferably be 2, and is not particularly limited. In order to adapt to the installation and fixation of the barometer, the clamping plate 61 may be designed to be arc-shaped, and is not particularly limited.
Further, a second end of the screw 62 extending out of the fixed disk 1 is provided with a rotating head 63; the clamping surface of the clamping plate 61 is laid with a non-slip mat 611. The rotation can be dismantled with the second end of screw rod 62 and be connected, convenient maintenance, and the commentaries on classics 63 that sets up can make things convenient for the operator to rotate the operation, improves the installation and dismantles efficiency. The non-slip mat 611 may be a rubber mat, which provides anti-slip, wear-resistant and protective effects.
Further, the recording disk 2 is detachably attached to the fixed disk 1. The detachable connection mode can facilitate the replacement and cleaning of the recording disk 2, for example, a protrusion (not shown) is arranged on the back of the recording disk 2, a notch (not shown) for the protrusion to be embedded is arranged on the fixed disk 1, and the protrusion and the notch can be in interference fit to meet certain matching firmness. Similarly, the first scale plate 3 can be detachably engaged in this way, and is not limited in particular. Because of the limitation of the reading pointer 41, if the recording disk 2 is a complete recording disk, the reading pointer 41 needs to be detached first, and therefore the recording disk 2 can also be formed by splicing a plurality of fan-shaped disks, so that flexible detachment and assembly can be realized, and the limitation is not particularly made.
Further, the second end of the reading pointer 41 extends to the position of the outer peripheral edge of the front surface of the recording disk 2; due to the design, the reading pointer 41 can form an auxiliary marking section at the needle section extending into the front surface of the recording disc 2, so that the operator can conveniently mark and record, and the method is not limited.
Further, an axial bearing is arranged between the rotating disc 4 and the fixed disc 1; a first shaft sleeve of the axial bearing is connected with the fixed disc 1, and a second shaft sleeve is connected with the rotating disc 4. The axial bearing may be a conventional thrust ball bearing, and is not particularly limited. During the design, can be so that be detachable cooperation between rolling disc 4 and the second shaft sleeve of axial bearing to make things convenient for the dismantlement of rolling disc 4 to maintain.
Further, as for the mounting manner of the reading pointer 41, a mounting hole (not shown) may be provided on the rotating disk 4; the reading pointer 41 is provided with a convex column (not shown) movably inserted into the mounting hole. The convex column and the mounting hole can be in interference fit, so that the stability of the fit is improved, and the subsequent disassembly is also facilitated.
Furthermore, a pen cavity is arranged on the outer peripheral wall of the fixed disk 1; the recording pen 7 is movably inserted in the pen cavity. The design can be recorded and stored, and the use convenience is improved.
Furthermore, a plurality of magnet blocks 8 distributed circumferentially around the central axis of the fixed disk 1 are embedded in the back surface of the fixed disk 1. The installation adsorption power can be increased by arranging the magnet blocks 8, and the installation stability is further improved.
In addition, in order to further increase the variety of reading accuracy, in the present application, an annular second dial 5 may be additionally disposed at the innermost edge position of the front surface of the fixed disk 1, so as to provide a scale reading with a smaller accuracy than that of the first dial 3, and the second dial 5 may be disposed to assist the rapid rough alignment of the pointer, which may be appropriately changed by those skilled in the art based on the above, without limitation.
In addition, in order to improve the convenience of recording, the present application may also use the recording pen 7 in combination with a pointer, for example, the pointer section of the reading pointer 41 extending into the recording disk 2 is designed to be an elastic section, and the front height of the recording disk 2 is lower than the reading pointer 41, and a certain gap is formed between the reading pointer 41 and the reading pointer 41. The elastic section is provided with a sliding groove which is arranged along the length direction of the elastic section and penetrates through the elastic section, the recording wall can be vertically inserted into the sliding groove, the axial direction can be axially limited and connected with the reading pointer 41 through two fasteners such as nuts, and the recording pen 7 can be in sliding fit with the sliding groove 411 along the length direction of the reading pointer 41. When the rotating disc 4 is rotated until the first end of the reading pointer 41 is aligned with the air pressure pointer in the air pressure gauge, the rotating disc 4 can be pressed, the other hand grasps the recording pen 7 and presses towards the direction of the recording disc 2, so that the pen core end of the recording pen 7 contacts the recording disc 2, the recording pen 7 is slid to complete marking recording, and finally, the recording is released, reset is realized by utilizing the elastic force of the elastic section, and recording time can be completed by using other recording pens 7.
As shown in fig. 4, the present application also discloses a high voltage switch cabinet SF6Barometer state recording method applied to high-voltage switch cabinet SF6The barometer state recording device comprises the following steps:
s1, rotating the rotating disc 4 until the first end of the reading pointer 41 coincides with the current air pressure pointer of the barometer, and determining the air pressure pointer reading and the corresponding scale mark of the reading pointer 41 in the first dial 3.
S2, the air pressure pointer reading and the patrol time are recorded by the recording pen 7 aligning the position of the scale on the recording disk 2. It should be noted that, if repeated air pressure pointer readings occur at different times, the method may be used to repeatedly record the air pressure pointer readings, and only increase the patrol time record, which is not limited specifically.
The above is to the high voltage switch cabinet SF provided by the present application6While the barometer status recording device and method have been described in detail, it will be apparent to those skilled in the art that the invention can be modified in various embodiments and applications without departing from the spirit and scope of the invention.
Claims (10)
1. High-voltage switch cabinet SF6Barometer state recording device, its characterized in that includes: the device comprises a fixed disc, a locking assembly, an annular rotating disc, an annular first dial, a reading pointer, an annular recording disc and a recording pen;
the middle part of the fixed disc is provided with an avoidance hole for avoiding the barometer;
the locking assembly fastens the fixed disc and the air pressure gauge to be connected;
the rotating disc, the first dial disc and the recording disc are sequentially arranged on the front surface of the fixed disc along the direction from the inner peripheral wall of the avoidance hole to the outer peripheral wall of the fixed disc, and are coaxial with the fixed disc;
the reading pointer is arranged on the front face of the rotating disc along the radial direction of the fixed disc, the first end of the reading pointer extends into the front face area of the avoidance hole, and the second end of the reading pointer extends to the front face of the recording disc;
the recording pen is movably connected with the fixed disc.
2. High voltage switchgear SF according to claim 16The barometer state recording device is characterized in that the locking assembly comprises at least two adjustable clamps;
the two adjustable clamps comprise clamping plates and screws;
the two clamping plates are symmetrically arranged in the avoidance hole, and a clamping cavity for clamping the barometer is formed between the two clamping plates;
the first end of the screw rod extends into the avoiding hole through the peripheral wall of the fixed disc and is rotationally connected with the clamping plate;
the screw rod is in threaded connection with the fixed disc.
3. High voltage switchgear SF according to claim 26The barometer state recording device is characterized in that a second end of the screw rod, which extends out of the fixed disc, is provided with a rotating head;
and an anti-slip pad is laid on the clamping surface of the clamping plate.
4. High voltage switchgear SF according to claim 16The barometer state recording device is characterized in that the recording disk is detachably connected with the fixed disk.
5. High voltage switchgear SF according to claim 16The barometer state recording device is characterized in that the second end of the reading pointer extends to the periphery of the front face of the recording diskAn edge position;
and the reading pointer forms an auxiliary marking section at a pointer section extending into the front surface of the recording disk.
6. High voltage switchgear SF according to claim 16The barometer state recording device is characterized in that an axial bearing is arranged between the rotating disc and the fixed disc;
and a first shaft sleeve of the axial bearing is connected with the fixed disc, and a second shaft sleeve is connected with the rotating disc.
7. High voltage switchgear SF according to claim 16The barometer state recording device is characterized in that the rotating disc is provided with a mounting hole;
and the reading pointer is provided with a convex column which is movably inserted into the mounting hole.
8. High voltage switchgear SF according to claim 16The barometer state recording device is characterized in that a pen cavity is formed in the outer peripheral wall of the fixed disc;
the recording pen is movably inserted in the pen cavity.
9. High voltage switchgear SF according to claim 16The barometer state recording device is characterized in that a plurality of magnet blocks distributed around the circumference of the central axis of the fixed disc are embedded in the back surface of the fixed disc.
10. High-voltage switch cabinet SF6Barometer status logging method, characterized in that it is applied to a high voltage switchgear cabinet SF according to any of claims 1 to 96The barometer state recording device comprises the following steps:
rotating the rotating disc until the first end of the reading pointer is overlapped with the current air pressure pointer of the air pressure gauge, and determining the reading of the air pressure pointer and the corresponding scale mark of the reading pointer in the first dial;
and aligning the position of the scale mark on the recording disc by a recording pen to record the reading of the air pressure pointer and the tour time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127844.4A CN112378574B (en) | 2020-10-19 | 2020-10-19 | High-voltage switch cabinet SF6Barometer state recording device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011127844.4A CN112378574B (en) | 2020-10-19 | 2020-10-19 | High-voltage switch cabinet SF6Barometer state recording device and method |
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| Publication Number | Publication Date |
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| CN112378574A true CN112378574A (en) | 2021-02-19 |
| CN112378574B CN112378574B (en) | 2022-07-12 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190518320A (en) * | 1905-09-11 | 1906-08-23 | Adolf Abraham | Improvements in Recording-apparatus for Barometers and similar Instruments. |
| GB417514A (en) * | 1933-03-31 | 1934-10-01 | Sydney Smith And Sons Nottingh | Improvements in pressure gauges, particularly for indicating absolute pressure, and the like instruments |
| GB568617A (en) * | 1943-07-15 | 1945-04-12 | Cyril Henry Middup | Improvements in or relating to recording pressure and like gauges |
| GB2089509A (en) * | 1980-09-30 | 1982-06-23 | Gorringe Dennis Charles Stanle | Improvements In or Relating to Barometers |
| CN1102256A (en) * | 1993-10-29 | 1995-05-03 | 郑锡岭 | Monitoring indicator with localized parameter recorder |
| CN101614562A (en) * | 2009-08-05 | 2009-12-30 | 钟胜 | Pointer type reading device with digitizing function |
| CN101852668A (en) * | 2010-06-21 | 2010-10-06 | 东南大学 | Packaging structure of micro mechanical air pressure sensor chip and preparation method thereof |
-
2020
- 2020-10-19 CN CN202011127844.4A patent/CN112378574B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190518320A (en) * | 1905-09-11 | 1906-08-23 | Adolf Abraham | Improvements in Recording-apparatus for Barometers and similar Instruments. |
| GB417514A (en) * | 1933-03-31 | 1934-10-01 | Sydney Smith And Sons Nottingh | Improvements in pressure gauges, particularly for indicating absolute pressure, and the like instruments |
| GB568617A (en) * | 1943-07-15 | 1945-04-12 | Cyril Henry Middup | Improvements in or relating to recording pressure and like gauges |
| GB2089509A (en) * | 1980-09-30 | 1982-06-23 | Gorringe Dennis Charles Stanle | Improvements In or Relating to Barometers |
| CN1102256A (en) * | 1993-10-29 | 1995-05-03 | 郑锡岭 | Monitoring indicator with localized parameter recorder |
| CN101614562A (en) * | 2009-08-05 | 2009-12-30 | 钟胜 | Pointer type reading device with digitizing function |
| CN101852668A (en) * | 2010-06-21 | 2010-10-06 | 东南大学 | Packaging structure of micro mechanical air pressure sensor chip and preparation method thereof |
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| CN112378574B (en) | 2022-07-12 |
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