CN215639594U - High-precision three-axis temperature vibration composite sensor - Google Patents
High-precision three-axis temperature vibration composite sensor Download PDFInfo
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- CN215639594U CN215639594U CN202122393953.7U CN202122393953U CN215639594U CN 215639594 U CN215639594 U CN 215639594U CN 202122393953 U CN202122393953 U CN 202122393953U CN 215639594 U CN215639594 U CN 215639594U
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Abstract
The application discloses high accuracy triaxial temperature vibration composite sensor relates to signal detection technical field. On the premise of simultaneously detecting the vibration signal and the temperature signal of the object to be detected, the vibration detection device has the advantages of simple and compact structure and easiness in assembly and debugging, and the vibration detection direction of the sensor is adjustable. The temperature vibration composite sensor comprises a lower base; an annular mounting cavity is formed in the lower base, and a mounting base is arranged in the annular mounting cavity; the mounting base can rotate in the annular mounting cavity; the sleeve is sleeved on the outer side of the mounting base, the locking nut is sleeved on the outer side of the sleeve, the lower end of the locking nut is in threaded connection with the upper end of the lower base, and the mounting base is tightly pressed in the annular mounting cavity; the temperature sensor probe is connected to the bottom of the mounting base, the signal processing chip is arranged at the upper end of the mounting base, and the mems acceleration chip is arranged on the signal processing chip. The application is used for improving the performance of the temperature vibration composite sensor.
Description
Technical Field
The application relates to the technical field of signal detection, in particular to a high-precision three-axis temperature vibration composite sensor.
Background
The existing temperature vibration composite sensor mainly detects temperature and is accompanied with axial vibration detection, and most of the existing temperature vibration composite sensors adopt a method of installing a mass block to detect pressure or shear force generated during vibration to measure acceleration. The method has the defects of complex structure, complex processing, small vibration detection range and low sensitivity, and each sensor needs to be calibrated independently due to the existence of processing errors, so the method is not suitable for high-precision multi-axial signal detection. In addition, because the traditional sensor is fixed on an object to be measured by adopting a bolt, the measured vibration direction can not be adjusted, and due to the problems of processing precision and errors, the proper angle can not be quickly adjusted, so that the accuracy of a measuring result is influenced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a high accuracy triaxial temperature vibration combined sensor, under the prerequisite that can detect the vibration signal and the temperature signal of the object that awaits measuring simultaneously, not only has the advantage of simple structure compactness, easy equipment debugging, the vibration detection direction of sensor is adjustable moreover, has reduced the influence because of machining error causes.
In order to achieve the above object, an embodiment of the present application provides a high-precision three-axis temperature vibration composite sensor, which includes a lower base, a temperature sensor probe, a mems acceleration chip, and a signal processing chip; an annular mounting cavity with an upward opening is formed in the lower base, and a through hole which is communicated up and down is formed in the bottom of the annular mounting cavity; a mounting base is arranged in the annular mounting cavity; the mounting base can rotate in the annular mounting cavity; a sleeve is sleeved on the outer side of the mounting base, an annular bulge is arranged on the sleeve, and the bottom of the sleeve is connected with the bottom of the mounting base; a locking nut is sleeved on the outer side of the sleeve, the lower end of the locking nut is in threaded connection with the upper end of the lower base, the upper end of the locking nut is in low connection with the annular bulge, and the mounting base is tightly pressed in the annular mounting cavity; one end of the temperature sensor probe penetrates through the through hole and then is connected to the bottom of the mounting base, the signal processing chip is arranged at the upper end of the mounting base, and the mems acceleration chip is arranged on the signal processing chip; and a wire outlet is arranged at the top of the sleeve and connected with a wire outlet connector.
Further, the mounting base comprises a first mounting part and a second mounting part arranged at the upper part of the first mounting part; the first mounting part is a step-shaped cylinder, and the radial size of the large end at the bottom of the step-shaped cylinder is matched with the radial size of the annular mounting cavity; a probe mounting hole is formed in the center of the first mounting part, and one end of the temperature sensor probe is fixed in the probe mounting hole; the second installation department is the rectangular plate, signal processing chip passes through bolted connection and is in on the second installation department, just signal processing chip is located the middle part of annular installation cavity.
Furthermore, one end of the rectangular plate, which is close to the step-shaped cylinder, is provided with a rectangular hole for leading out a signal wire of the temperature sensor probe.
Furthermore, the lower part of the lower base is a hollow cylinder, and the cylindrical surface of the hollow cylinder is provided with an external thread for connecting a piece to be tested.
Further, the mems acceleration chip is welded on the signal processing chip.
Further, the temperature sensor probe is welded on the mounting base.
Furthermore, the mems acceleration chip can acquire an acceleration value of the detected object, convert the acceleration value into an electric signal and output the electric signal to the signal processing chip; the signal processing chip can reduce noise and amplify the electric signals.
Further, the mems acceleration chip can measure acceleration values in three directions simultaneously.
Compared with the prior art, the application has the following beneficial effects:
1. the embodiment of the application embodiment high accuracy triaxial temperature vibration composite sensor, through set up the mounting base that can wind its axis rotation in the base down, and set up the temperature sensor probe bottom the mounting base, set up mems acceleration chip and signal processing chip on mounting base upper portion, compare prior art and adopt the technical scheme of installation quality piece, this application is under the prerequisite that can detect the vibration signal and the temperature signal of the object that awaits measuring simultaneously, not only has simple structure compactness, the advantage of easy equipment debugging, and the vibration detection direction of sensor is adjustable, the influence because of machining error causes has been reduced, adapt to multiple test environment.
2. According to the embodiment of the application, the high-precision three-axis temperature vibration composite sensor is directly in threaded connection with the part to be measured, extra bolts are not needed during installation, and the maintenance and the replacement are convenient and fast.
3. The high-precision three-axis temperature vibration composite sensor can acquire three-axis signals and has the advantages of high signal precision and large measuring range.
4. The temperature sensor probe in the high-precision triaxial temperature vibration composite sensor in the embodiment of the application is directly contacted with the inner space of the part to be measured, the reaction to temperature signals is sensitive, and the precision is high.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a cross-sectional view of a high-precision three-axis temperature vibration composite sensor according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a mounting base in the high-precision three-axis temperature vibration composite sensor according to the embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; the specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.
Referring to fig. 1, an embodiment of the present application provides a high-precision three-axis temperature vibration composite sensor, which includes a lower base 1, a temperature sensor probe 2, a mems acceleration chip 3 and a signal processing chip 4.
An annular mounting cavity 11 with an upward opening is formed in the lower base 1, and a through hole 12 which is through from top to bottom is formed in the bottom of the annular mounting cavity 11. The annular mounting cavity 11 is internally provided with a mounting base 5, and the mounting base 5 can rotate in the annular mounting cavity 11. The sleeve 6 is sleeved on the outer side of the mounting base 5, the annular protrusion 61 is arranged on the sleeve 6, and the bottom of the sleeve 6 is connected with the bottom of the mounting base 5. Locking nut 7 is established to the outside cover of sleeve 6, and the lower extreme of locking nut 7 and the upper end threaded connection of base 1 down, and locking nut 7's upper end and annular bulge 61 are low relatively connect to compress tightly mounting base 5 in annular installation cavity 11.
One end of the temperature sensor probe 2 is connected to the bottom of the mounting base 5 after penetrating through the through hole 12, the signal processing chip 4 is arranged at the upper end of the mounting base 5, and the mems acceleration chip 3 is welded on the signal processing chip 4. The mems acceleration chip 3 can simultaneously measure vibration signals in three directions, which are X, Y and the Z-axis direction. Therefore, the mems acceleration chip 3 can rotate with the mounting base 5 in the annular mounting cavity 11 to adjust the test direction of the second axis vibration and the third axis vibration (the X axis direction and the Y axis direction) except the axial direction (the Z axis direction). The top of the adjusting sleeve 6 is provided with a wire outlet 62, and a wire outlet joint 8 is welded at the wire outlet 62. Therefore, the outgoing line connector 8 and the sleeve 6 are connected into a whole, and the stability of the sensor wiring is improved.
The lower part of the lower base 1 is a hollow cylinder, and the cylindrical surface of the hollow cylinder is provided with an external thread 13 for connecting a piece to be detected. The sleeve 6 is used for protecting the signal processing chip 4 and shielding the signal from external interference.
Referring to fig. 2, the mounting base 5 includes a first mounting portion 51 and a second mounting portion 52 provided at an upper portion of the first mounting portion 51. The first mounting portion 51 is a stepped cylinder, and the radial dimension of the large end of the bottom of the stepped cylinder is matched with the radial dimension of the annular mounting cavity 11. A vertically penetrating probe mounting hole 511 is provided at the center of the first mounting portion 51, and one end of the temperature sensor probe 2 is welded in the probe mounting hole 511.
The second mounting portion 52 is a rectangular plate vertically disposed on the upper end surface of the first mounting portion 51, and a surface surrounded by a length of the rectangular plate in the width direction and a length of the rectangular plate in the thickness direction is fixedly connected to the upper end surface of the first mounting portion 51. Be equipped with four screw holes 521 that extend along thickness direction on this rectangular plate, signal processing chip 4 passes through bolt 9 to be connected on second installation department 52, and signal processing chip 4 is vertical to be set up in the middle part of annular installation cavity 11. For more reliable connection and ease of processing, the mems acceleration chip 3 is soldered on the signal processing chip 4.
For the convenience of wiring, one end of the rectangular plate close to the step-shaped cylinder is provided with a rectangular hole 522 for leading out a signal wire of the temperature sensor probe 2.
Referring to fig. 1 and 2, one end of the temperature sensor probe 2 is welded at the probe mounting hole 511 of the mounting base 5, and the other end thereof is inserted into the to-be-detected piece for temperature detection.
The mems acceleration chip 3 has the advantages of wide measuring range and high sensitivity. Specifically, when vibration acts on the mems acceleration chip 3, the mems acceleration chip 3 can collect the acceleration value of the detected object, and can directly convert the acceleration value into an electric signal, and the electric signal is output after noise reduction and amplification through the signal processing chip 4. Therefore, piezoelectric or pressure-sensitive structures such as mass blocks do not need to be additionally arranged, the structure is simple, the space is saved, and the assembly is convenient. In addition, in addition to the axial vibration, the other two directions can be adjusted by rotating the mounting base 5.
Before the high-precision triaxial temperature vibration composite sensor is used, the locking nut 7, the base 5 and the sleeve 6 are fixedly installed after the adjustment of the detection direction of the sensor is finished, and the sealant is additionally coated at the connection position.
During the use, the rod end part of temperature sensor probe 2 is less than lower base 1, should make it probe into in the cavity of the piece that awaits measuring when installing temperature sensor probe 2 to guarantee temperature signal's real-time and accuracy.
The above is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A high-precision three-axis temperature vibration composite sensor is characterized by comprising a lower base, a temperature sensor probe, a mems acceleration chip and a signal processing chip;
an annular mounting cavity with an upward opening is formed in the lower base, and a through hole which is communicated up and down is formed in the bottom of the annular mounting cavity; a mounting base is arranged in the annular mounting cavity; the mounting base can rotate in the annular mounting cavity;
a sleeve is sleeved on the outer side of the mounting base, an annular bulge is arranged on the sleeve, and the bottom of the sleeve is connected with the bottom of the mounting base; a locking nut is sleeved on the outer side of the sleeve, the lower end of the locking nut is in threaded connection with the upper end of the lower base, the upper end of the locking nut is in low connection with the annular bulge, and the mounting base is tightly pressed in the annular mounting cavity;
one end of the temperature sensor probe penetrates through the through hole and then is connected to the bottom of the mounting base, the signal processing chip is arranged at the upper end of the mounting base, and the mems acceleration chip is arranged on the signal processing chip;
and a wire outlet is arranged at the top of the sleeve and connected with a wire outlet connector.
2. A high accuracy three axis temperature vibrating composite sensor according to claim 1,
the mounting base comprises a first mounting part and a second mounting part arranged at the upper part of the first mounting part;
the first mounting part is a step-shaped cylinder, and the radial size of the large end at the bottom of the step-shaped cylinder is matched with the radial size of the annular mounting cavity; a probe mounting hole is formed in the center of the first mounting part, and one end of the temperature sensor probe is fixed in the probe mounting hole;
the second installation department is the rectangular plate, signal processing chip passes through bolted connection and is in on the second installation department, just signal processing chip is located the middle part of annular installation cavity.
3. A high-precision three-axis temperature vibration composite sensor according to claim 2, wherein one end of the rectangular plate close to the stepped cylinder is provided with a rectangular hole for leading out a signal wire of a temperature sensor probe.
4. The high-precision three-axis temperature vibration composite sensor according to claim 1, wherein the lower portion of the lower base is a hollow cylinder, and an external thread for connecting a to-be-measured member is arranged on a cylindrical surface of the hollow cylinder.
5. A high accuracy three axis temperature vibration composite sensor according to claim 1, wherein said mems acceleration chip is soldered on said signal processing chip.
6. A high accuracy tri-axial temperature vibratory composite sensor as in claim 1 wherein the temperature sensor probe is welded to the mounting base.
7. The high-precision triaxial temperature vibration composite sensor according to any one of claims 1 to 6, wherein the mems acceleration chip can acquire an acceleration value of a detected piece, convert the acceleration value into an electric signal and output the electric signal to the signal processing chip; the signal processing chip can reduce noise and amplify the electric signals.
8. A high accuracy three axis temperature vibration composite sensor according to claim 1, wherein the mems acceleration chip is capable of measuring acceleration values in three directions simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393953.7U CN215639594U (en) | 2021-09-30 | 2021-09-30 | High-precision three-axis temperature vibration composite sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122393953.7U CN215639594U (en) | 2021-09-30 | 2021-09-30 | High-precision three-axis temperature vibration composite sensor |
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| CN215639594U true CN215639594U (en) | 2022-01-25 |
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| CN202122393953.7U Active CN215639594U (en) | 2021-09-30 | 2021-09-30 | High-precision three-axis temperature vibration composite sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4296250A1 (en) | 2022-06-23 | 2023-12-27 | Yara International ASA | Process or storage tank with dual measurement means and method of operating thereof |
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2021
- 2021-09-30 CN CN202122393953.7U patent/CN215639594U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4296250A1 (en) | 2022-06-23 | 2023-12-27 | Yara International ASA | Process or storage tank with dual measurement means and method of operating thereof |
| WO2023247749A1 (en) | 2022-06-23 | 2023-12-28 | Yara International Asa | Process or storage tank with dual measurement means and method of operating thereof |
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