CN112762919B - Liquid piezoelectric jet gyroscope based on electrochemical energy conversion and measuring method - Google Patents
Liquid piezoelectric jet gyroscope based on electrochemical energy conversion and measuring method Download PDFInfo
- Publication number
- CN112762919B CN112762919B CN202011588067.3A CN202011588067A CN112762919B CN 112762919 B CN112762919 B CN 112762919B CN 202011588067 A CN202011588067 A CN 202011588067A CN 112762919 B CN112762919 B CN 112762919B
- Authority
- CN
- China
- Prior art keywords
- groove
- electrochemical
- gyroscope
- cavity
- electrochemical transducer
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/58—Turn-sensitive devices without moving masses
Abstract
The invention discloses a liquid piezoelectric jet gyroscope based on electrochemical transduction and a measuring method. The liquid piezoelectric jet gyroscope includes: the gyroscope comprises a gyroscope body, a fluid driving element, a pressure sensor, a piezoelectric fiber sheet, a first electrochemical transducer, a second electrochemical transducer and a controller; the fluid driving element, the piezoelectric fiber sheet, the pressure sensor, the first electrochemical transducer and the second electrochemical transducer are all connected with the controller; a fluid driving cavity, a buffer cavity and a diversion cavity which are sequentially communicated are formed in the gyroscope body; the shunting cavity includes: an injection port, a first branch flow passage and a second branch flow passage; the first electrochemical transducer is arranged in the first shunt channel; the second electrochemical transducer is disposed in the second shunt channel. The liquid piezoelectric jet gyroscope based on electrochemical transduction adopts electrolyte as a flowing medium, and the sensing element is set as an electrochemical transducer, so that the problem of output characteristic drift caused by temperature is solved.
Description
Technical Field
The invention relates to the technical field of gyroscopes, in particular to a liquid piezoelectric jet gyroscope based on electrochemical transduction and a measuring method.
Background
A gyroscope is an important inertial sensing unit that can be used to detect the angular velocity and rate of motion. From the first generation of gyroscopes appearing before the 50 s in the 20 th century, the gyroscopes developed, through continuous development, from the original traditional mechanical rotor gyroscopes, electrostatic gyroscopes, laser gyroscopes, flexible gyroscopes, fiber optic gyroscopes, piezoelectric jet gyroscopes, etc., which all belong to solid-state gyroscopes. Compared with the traditional spinning top, the spinning top does not have a rotor, so that the mechanical friction and mechanical interference caused by the rotor rotating at a high speed are avoided in principle, the stability of the system is improved, and the error is reduced.
The piezoelectric jet gyro uses gas as a flowing medium, and has the advantages that the mass is small, the gas is driven by the piezoelectric pump to circularly flow, and when an angular velocity signal of the gyro is input, the circular gas flow is deflected due to Coriolis force to measure an angular parameter.
The piezoelectric jet gyroscope has the technical characteristics of light weight, small size, strong severe environment resistance and stable performance, and is low in cost and convenient to use.
The current piezoelectric fluidic gyroscope mainly adopts gas as a flowing medium and a thermistor as a flow velocity measuring unit, but from the previous research on the fluidic gyroscope, the low density and natural convection form of the gas flowing medium are main factors causing low sensitivity, low frequency response and small measuring range of devices, and for the thermal fluidic gyroscope, the sensing element is a thermistor wire. The thermistor wires work in a heating state, a temperature field can be generated around the thermistor wires, so that the distribution of an air flow velocity field in the cavity of the gyroscope is changed, and when the two thermistor wires are asymmetrically distributed, the two thermistor wires can be influenced by the temperature field, so that the problems of zero temperature drift of the gyroscope, sensitivity temperature drift, nonlinear error generation and the like can be caused.
Therefore, the conventional piezoelectric jet gyroscope has a problem of output characteristic drift caused by temperature.
Disclosure of Invention
The invention aims to provide a liquid piezoelectric jet gyroscope based on electrochemical energy conversion and a measuring method.
In order to achieve the purpose, the invention provides the following scheme:
a liquid piezoelectric jet gyroscope based on electrochemical transduction comprising: the gyroscope comprises a gyroscope body, a fluid driving element, a pressure sensor, a piezoelectric fiber sheet, a first electrochemical transducer, a second electrochemical transducer and a controller; the fluid driving element, the piezoelectric fiber sheet, the pressure sensor, the first electrochemical transducer and the second electrochemical transducer are all connected with the controller;
the gyroscope body is internally provided with a fluid driving cavity, a buffer cavity and a flow dividing cavity which are sequentially communicated; the shunting cavity comprises: an injection port, a first branch flow passage and a second branch flow passage; the injection port is positioned at the joint of the buffer cavity and the diversion cavity; the first branch flow channel is communicated with the fluid driving cavity through a first return flow channel; the second branch flow channel is communicated with the fluid driving cavity through a second return flow channel; the buffer cavity is a cavity with an opening at the top, and the piezoelectric fiber sheet is arranged at the top of the buffer cavity; the pressure sensor is arranged at the bottom of the buffer cavity;
the fluid drive element is disposed within the fluid drive cavity; the fluid driving element is used for driving the electrolyte to flow, so that the electrolyte flowing through the buffer cavity is ejected from the ejection opening to generate jet flow and generate deviation, and then the jet flow flows back to the fluid driving cavity through the first sub-flow passage and the second sub-flow passage;
the first electrochemical transducer is disposed in the first shunt channel; the second electrochemical transducer is arranged in the second shunt channel;
the controller is used for acquiring a pressure signal detected by the pressure sensor, a first flow rate signal detected by the first electrochemical transducer and a second flow rate signal detected by the second electrochemical transducer, changing the bending direction of the pressure fiber sheet according to the pressure signal to change the volume of the buffer cavity, so that the pressure in the buffer cavity is balanced, and calculating the angular speed of the liquid piezoelectric jet gyroscope according to the first flow rate signal and the second flow rate signal.
Optionally, the gyroscope body includes an upper housing and a lower housing;
the lower shell is provided with a first driving groove, a first buffer groove and a first diversion groove; the upper shell is provided with a second driving groove matched with the first driving groove, a buffering through groove matched with the first buffering groove and a second diversion groove matched with the first diversion groove; the first driving groove and the second driving groove form the fluid driving cavity, and the first buffer groove and the buffer through groove form the buffer cavity; the first diversion groove and the second diversion groove form the diversion cavity.
Optionally, the second drive slot comprises a first drive element securing slot and a second drive element securing slot.
Optionally, a pressure sensor fixing groove corresponding to the position of the buffer cavity is formed in the bottom surface of the lower shell, an opening penetrating through the pressure sensor fixing groove is formed in the bottom of the buffer cavity, the pressure sensor fixing groove is used for setting the pressure sensor, and the pressure sensor is used for detecting the pressure signal through the opening.
Optionally, the lower shell is further provided with a first backflow groove and a second backflow groove; the upper shell is also provided with a third reflux groove and a fourth reflux groove; the first backflow groove and the third backflow groove form the first backflow flow channel, and the second backflow groove and the fourth backflow groove form the second backflow flow channel.
Optionally, the first diversion trench is provided with a first electrochemical transducer fixing diversion trench and a second electrochemical transducer fixing diversion trench, and the second diversion trench is provided with a third electrochemical transducer fixing diversion trench and a fourth electrochemical transducer fixing diversion trench; the first electrochemical transducer fixing sub-groove and the third electrochemical transducer fixing sub-groove form a first electrochemical transducer fixing groove, and the second electrochemical transducer fixing sub-groove and the fourth electrochemical transducer fixing sub-groove form a second electrochemical transducer fixing groove;
the first electrochemical transducer fixing groove is used for fixing the first electrochemical transducer;
the second electrochemical transducer holding groove is for holding the second electrochemical transducer.
Optionally, the fluid driving element is a piezoelectric pump.
A liquid piezoelectric jet gyroscope measurement method based on electrochemical energy conversion is applied to the liquid piezoelectric jet gyroscope based on electrochemical energy conversion, and the measurement method comprises the following steps:
acquiring a pressure signal detected by a pressure sensor, a first flow rate signal detected by a first electrochemical transducer and a second flow rate signal detected by a second electrochemical transducer;
changing the bending direction of the pressure fiber sheet according to the pressure signal to change the volume of the buffer cavity, so that the pressure in the buffer cavity is balanced;
and calculating the angular speed of the liquid piezoelectric jet gyroscope according to the first flow speed signal and the second flow speed signal.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention discloses a liquid piezoelectric jet gyroscope based on electrochemical transduction and a measuring method, wherein the liquid piezoelectric jet gyroscope comprises: the gyroscope comprises a gyroscope body, a fluid driving element, a pressure sensor, a piezoelectric fiber sheet, a first electrochemical transducer, a second electrochemical transducer and a controller; the fluid driving element, the piezoelectric fiber sheet, the pressure sensor, the first electrochemical transducer and the second electrochemical transducer are all connected with the controller; a fluid driving cavity, a buffer cavity and a diversion cavity which are communicated in sequence are formed in the gyroscope body; the shunting cavity includes: an injection port, a first branch flow passage and a second branch flow passage; the jet orifice is positioned at the joint of the buffer cavity and the flow dividing cavity; the first branch flow channel is communicated with the fluid driving cavity through the first return flow channel; the second branch flow channel is communicated with the fluid driving cavity through a second return flow channel; the buffer cavity is a cavity with an opening at the top, and the top of the buffer cavity is provided with a piezoelectric fiber sheet; the bottom of the buffer cavity is provided with a pressure sensor; the fluid driving element is arranged in the fluid driving cavity; the fluid driving element drives the electrolyte to flow, so that the electrolyte flowing through the buffer cavity is ejected from the ejection opening to generate jet flow and generate deviation, and then the electrolyte flows back to the fluid driving cavity through the first sub-flow passage and the second sub-flow passage; the first electrochemical transducer is arranged in the first shunt channel; the second electrochemical transducer is disposed in the second shunt channel. The liquid piezoelectric jet gyroscope based on electrochemical transduction adopts electrolyte as a flowing medium, and the induction element is set as an electrochemical transducer, so that the sensitivity and the frequency response of the gyroscope are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a first structure of a piezoelectric fluidic gyroscope based on electrochemical energy conversion according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a second configuration of a liquid piezoelectric fluidic gyroscope based on electrochemical energy conversion according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an electrochemical transducer according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating the electrolyte flow direction of a liquid piezoelectric jet gyroscope based on electrochemical energy conversion according to an embodiment of the present invention;
fig. 5 is a flowchart of a liquid piezoelectric jet gyroscope measurement method based on electrochemical energy conversion according to an embodiment of the present invention.
Description of the symbols: 1-a fluid driving element, 2-a pressure sensor, 3-a piezoelectric fiber sheet, 4-a first electrochemical transducer, 5-a second electrochemical transducer, 6-an ejection port, 7-an upper case first backflow channel, 8-a lower case second backflow channel, 9-a first driving groove, 10-a first buffer groove, 11-a first diversion groove, 12-a buffer through groove, 13-a second diversion groove, 14-a piezoelectric fiber sheet periphery fixing unit, 15-a first driving element fixing groove, 16-a second driving element fixing groove, 17-a pressure sensor fixing groove, 18-a first backflow groove, 19-a second backflow groove, 20-a third groove, 21-a fourth backflow groove, 22-a first electrochemical transducer fixing minute groove, 23-a second electrochemical transducer fixing minute groove, 24-a third electrochemical transducer fixing minute groove, 25-a fourth electrochemical transducer fixing minute groove, 26-a fluid driving cavity, 27-a buffer cavity, 28-a diversion cavity, 29-a first backflow channel, 30-a second backflow channel, 30-a cathode reflux minute channel, 31-a cathode reflux channel, 32-a cathode reflux micropore flow channel, and a polymer backflow channel wall.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The invention aims to provide a liquid piezoelectric jet gyroscope based on electrochemical energy conversion and a measuring method, aims to avoid the problem of output characteristic drift caused by temperature, and can be applied to the technical field of gyroscopes.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a schematic view of a first structure of a liquid piezoelectric jet gyroscope based on electrochemical energy conversion according to an embodiment of the present invention, and fig. 2 is a schematic view of a second structure of the liquid piezoelectric jet gyroscope based on electrochemical energy conversion according to an embodiment of the present invention. As shown in fig. 1 and 2, the liquid piezoelectric jet gyroscope based on electrochemical transduction in the present embodiment includes: the gyroscope comprises a gyroscope body, a fluid driving element 1, a pressure sensor 2, a piezoelectric fiber sheet 3, a first electrochemical transducer 4, a second electrochemical transducer 5 and a controller; the fluid driving element 1, the piezoelectric fiber sheet 3, the pressure sensor 2, the first electrochemical transducer 4 and the second electrochemical transducer 5 are all connected with a controller (not shown in the figure).
As shown in fig. 3, the first electrochemical transducer 4 and the second electrochemical transducer 5 are electrochemical transducers each composed of a porous inert metal electrode and its peripheral circuit, the metal electrode is composed of a fine platinum mesh electrode, and includes two anodes 31 and two cathodes 32, the anodes 31 and the cathodes 32 are separated by a microporous polymer spacer 33, and are arranged in parallel. The peripheral circuit of the electrochemical transducer includes two impedance amplifiers and a differential amplifier for converting the current signal generated by the electrodes into a voltage signal.
A fluid driving cavity 26, a buffer cavity 27 and a flow dividing cavity 28 which are communicated in sequence are formed in the gyroscope body; the distribution chamber 28 includes: the injection port 6, the first subchannel and the second subchannel; the injection port 6 is positioned at the connection of the buffer cavity 27 and the branch cavity 28; the first subchannel communicates with the fluid drive chamber 26 through a first return channel 29; the second sub-channel communicates with the fluid drive chamber 26 via a second return channel 30; the buffer cavity 27 is a cavity with an open top, and the piezoelectric fiber sheet 3 is arranged at the top of the buffer cavity 27; the pressure sensor 2 is disposed at the bottom of the buffer chamber 27.
As shown in fig. 4, the fluid driving element 1 is disposed within the fluid driving chamber 26; the fluid driving element 1 is used for driving the electrolyte to flow, so that the electrolyte after flowing through the buffer cavity 27 is ejected from the ejection opening 6 to generate a jet flow, and the jet flow is deflected and then flows back to the fluid driving cavity 26 through the first sub-flow passage and the second sub-flow passage.
A first electrochemical transducer 4 is arranged in the first shunt channel; a second electrochemical transducer 5 is arranged in said second shunt channel.
The controller is used for acquiring a pressure signal detected by the pressure sensor 2, a first flow rate signal detected by the first electrochemical transducer 4 and a second flow rate signal detected by the second electrochemical transducer 5, changing the bending direction of the pressure fiber sheet 3 according to the pressure signal to change the volume of the buffer cavity 27, so that the pressure in the buffer cavity 27 is balanced, and calculating the angular velocity of the liquid piezoelectric jet gyroscope according to the first flow rate signal and the second flow rate signal.
As an alternative embodiment, the gyroscope body comprises an upper case 7 and a lower case 8.
The lower shell 8 is provided with a first driving groove 9, a first buffer groove 10 and a first diversion groove 11; the upper shell 7 is provided with a second driving groove matched with the first driving groove 9, a buffering through groove 12 matched with the first buffering groove 10 and a second shunting groove 13 matched with the first shunting groove 11; the first driving groove 9 and the second driving groove form a fluid driving chamber 26, and the first buffer groove 10 and the buffer penetration groove 12 form a buffer chamber 27; the first and second diversion trenches 11 and 13 constitute a diversion chamber 28. The piezoelectric fiber sheet 3 is provided with an upper buffer through groove 12 by a piezoelectric fiber sheet peripheral fixing unit 14.
As an alternative embodiment, the second driving member fixing groove includes a first driving member fixing groove 15 and a second driving member fixing groove 16.
As an alternative embodiment, the bottom surface of the lower housing 8 is provided with a pressure sensor fixing groove 17 corresponding to the position of the buffer cavity 27, the bottom of the buffer cavity 27 is provided with an opening penetrating through the pressure sensor fixing groove 17, the pressure sensor fixing groove 17 is used for arranging the pressure sensor 2, and the pressure sensor 2 is used for detecting a pressure signal through the opening.
As an optional embodiment, the lower housing 8 is further provided with a first backflow groove 18 and a second backflow groove 19; the upper shell 7 is also provided with a third reflux groove 20 and a fourth reflux groove 21; the first return groove 18 and the third return groove 20 constitute a first return flow passage 29, and the second return groove 19 and the fourth return groove 21 constitute a second return flow passage 30.
As an optional embodiment, the first diversion trench 11 is provided with a first electrochemical transducer fixing diversion trench 22 and a second electrochemical transducer fixing diversion trench 23, and the second diversion trench 13 is provided with a third electrochemical transducer fixing diversion trench 24 and a fourth electrochemical transducer fixing diversion trench 25; the first electrochemical transducer fixing sub-groove 22 and the third electrochemical transducer fixing sub-groove 24 constitute a first electrochemical transducer fixing groove, and the second electrochemical transducer fixing sub-groove 23 and the fourth electrochemical transducer fixing sub-groove 25 constitute a second electrochemical transducer fixing groove.
The first electrochemical transducer holding groove is used for holding the first electrochemical transducer 4.
The second electrochemical transducer holding groove is used to hold the second electrochemical transducer 5.
As an alternative embodiment, the fluid driving element 1 is a piezoelectric pump.
Fig. 5 is a flowchart of a liquid piezoelectric jet gyroscope measurement method based on electrochemical energy conversion according to an embodiment of the present invention, where the measurement method includes:
a pressure signal detected by the pressure sensor 2, a first flow rate signal detected by the first electrochemical transducer 4 and a second flow rate signal detected by the second electrochemical transducer 5 are obtained.
The bending direction of the pressure fiber sheet is changed according to the pressure signal to change the volume of the buffer cavity 27, so that the pressure in the buffer cavity 27 is balanced.
And calculating the angular speed of the liquid piezoelectric jet gyroscope according to the first flow speed signal and the second flow speed signal.
The main theoretical basis of the liquid piezoelectric jet gyroscope based on electrochemical energy conversion is the Coriolis law, in a rotating system, particles which perform linear motion are influenced by Coriolis force, and the deflection of the particles relative to the linear motion generated by the rotating system is generated, wherein the Coriolis force is as follows: f = -2m ω × v, where m is the mass of the particle, v is the velocity of the particle relative to the rotating system, ω is the angular velocity of the rotating system, the direction of the coriolis force F is perpendicular to both the direction of v and the direction of ω, and x represents the vector product of the two vectors. In a gyroscope, the jet is deflected in the direction of the coriolis force due to the presence of the coriolis force, resulting in a different flow through the two electrochemical transducers.
If the offset of the jet is x, the coriolis acceleration is:
x″＝2ωv，
from the above formula, the offset of the jet under the effect of coriolis force F is:
x＝ωvt 2 ，
where t is the time from jet generation to offset calculation.
If the lengths of the first branch flow channel and the second branch flow channel are both l, the offset of the jet flow generated in the gyroscope under the action of the coriolis force F can be obtained according to l = vt as follows:
it can be seen that the offset of the jet is proportional to the angular velocity of the rotating system, which causes a difference in the flow rates into the first and second sub-channels. Because the cross sections of the first subchannel and the second subchannel are the same, and the flow rate difference of the electrolyte in the first subchannel and the second subchannel is in direct proportion to the flow rate difference of the electrolyte, the electrochemical transducer detects the flow rate difference of the electrolyte in the first subchannel and the second subchannel,the angular velocity of the rotating system can be calculated, and the difference value of the flow velocity of the electrolyte in the two return channels is set as delta V, k 1 Is a proportionality coefficient, then
The electrochemical transducer generates a current signal in response to the input motion. The symmetrical geometry of the transducer element (two oppositely directed anodes and two cathodes) ensures its linear behavior over a large range of input signals.
Therefore, the change of the flow rate of the electrolyte in the two branch channels finally causes the change of the output current of the electrochemical transducer, and the formula for converting the flow rate signal into the current signal is as follows:
where I is the current.
The peripheral circuit can convert the current of the electrochemical transducer into voltage, and the conversion sensitivity is set as A, then the formula of the output voltage is as follows:
wherein, U out Is the output voltage.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are presented solely to aid in the understanding of the devices, methods, and core concepts of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (8)
1. A liquid piezoelectric fluidic gyroscope based on electrochemical transduction, comprising: the gyroscope comprises a gyroscope body, a fluid driving element, a pressure sensor, a piezoelectric fiber sheet, a first electrochemical transducer, a second electrochemical transducer and a controller; the fluid driving element, the piezoelectric fiber sheet, the pressure sensor, the first electrochemical transducer and the second electrochemical transducer are all connected with the controller;
the gyroscope body is internally provided with a fluid driving cavity, a buffer cavity and a flow dividing cavity which are sequentially communicated; the shunting cavity comprises: an injection port, a first branch flow passage and a second branch flow passage; the injection port is positioned at the joint of the buffer cavity and the diversion cavity; the first branch flow channel is communicated with the fluid driving cavity through a first return flow channel; the second branch flow channel is communicated with the fluid driving cavity through a second return flow channel; the buffer cavity is a cavity with an opening at the top, and the piezoelectric fiber sheet is arranged at the top of the buffer cavity; the pressure sensor is arranged at the bottom of the buffer cavity;
the fluid drive element is disposed within the fluid drive cavity; the fluid driving element is used for driving the electrolyte to flow, so that the electrolyte flowing through the buffer cavity is ejected from the ejection opening to generate jet flow and generate deviation, and then the jet flow flows back to the fluid driving cavity through the first sub-flow passage and the second sub-flow passage;
the first electrochemical transducer is disposed in the first shunt channel; the second electrochemical transducer is arranged in the second shunt channel;
the controller is used for acquiring a pressure signal detected by the pressure sensor, a first flow rate signal detected by the first electrochemical transducer and a second flow rate signal detected by the second electrochemical transducer, changing the bending direction of the piezoelectric fiber sheet according to the pressure signal to change the volume of the buffer cavity, so that the pressure in the buffer cavity is balanced, and calculating the angular velocity of the liquid piezoelectric jet gyroscope according to the first flow rate signal and the second flow rate signal.
2. The electrochemical energy conversion-based liquid piezoelectric jet gyroscope of claim 1, wherein the gyroscope body comprises an upper case and a lower case;
the lower shell is provided with a first driving groove, a first buffer groove and a first diversion groove; the upper shell is provided with a second driving groove matched with the first driving groove, a buffering through groove matched with the first buffering groove and a second shunting groove matched with the first shunting groove; the first driving groove and the second driving groove form the fluid driving cavity, and the first buffer groove and the buffer penetrating groove form the buffer cavity; the first diversion groove and the second diversion groove form the diversion cavity.
3. The electrochemical-transduction based liquid piezoelectric jet gyroscope of claim 2, wherein the second drive slot includes a first drive element securing slot and a second drive element securing slot.
4. The electrochemical transduction based liquid piezoelectric jet gyroscope according to claim 2, wherein a bottom surface of the lower housing is provided with a pressure sensor fixing groove corresponding to the position of the buffer cavity, a bottom of the buffer cavity is provided with an opening penetrating through the pressure sensor fixing groove, the pressure sensor fixing groove is used for arranging the pressure sensor, and the pressure sensor is used for detecting the pressure signal through the opening.
5. The electrochemical-transduction-based liquid piezoelectric jet gyroscope of claim 2, wherein the lower housing further defines a first return channel and a second return channel; the upper shell is also provided with a third reflux groove and a fourth reflux groove; the first backflow groove and the third backflow groove form the first backflow flow channel, and the second backflow groove and the fourth backflow groove form the second backflow flow channel.
6. The electrochemical-transduction-based liquid piezoelectric jet gyroscope of claim 2, wherein the first shunting groove is provided with a first electrochemical transducer fixing sub-groove and a second electrochemical transducer fixing sub-groove, and the second shunting groove is provided with a third electrochemical transducer fixing sub-groove and a fourth electrochemical transducer fixing sub-groove; the first electrochemical transducer fixing sub-groove and the third electrochemical transducer fixing sub-groove form a first electrochemical transducer fixing groove, and the second electrochemical transducer fixing sub-groove and the fourth electrochemical transducer fixing sub-groove form a second electrochemical transducer fixing groove;
the first electrochemical transducer fixing groove is used for fixing the first electrochemical transducer;
the second electrochemical transducer holding groove is for holding the second electrochemical transducer.
7. The electrochemical energy conversion-based liquid piezoelectric fluidic gyroscope of claim 1, wherein the fluid driven element is a piezoelectric pump.
8. A method for measuring a liquid piezoelectric jet gyroscope based on electrochemical energy conversion, which is applied to the liquid piezoelectric jet gyroscope based on electrochemical energy conversion according to any one of claims 1-7, and comprises the following steps:
acquiring a pressure signal detected by a pressure sensor, a first flow rate signal detected by a first electrochemical transducer and a second flow rate signal detected by a second electrochemical transducer;
changing the bending direction of the pressure fiber sheet according to the pressure signal to change the volume of a buffer cavity, so that the pressure in the buffer cavity is balanced;
and calculating the angular speed of the liquid piezoelectric jet gyroscope according to the first flow speed signal and the second flow speed signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588067.3A CN112762919B (en) | 2020-12-29 | 2020-12-29 | Liquid piezoelectric jet gyroscope based on electrochemical energy conversion and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011588067.3A CN112762919B (en) | 2020-12-29 | 2020-12-29 | Liquid piezoelectric jet gyroscope based on electrochemical energy conversion and measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112762919A CN112762919A (en) | 2021-05-07 |
| CN112762919B true CN112762919B (en) | 2022-11-08 |
Family
ID=75696777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011588067.3A Active CN112762919B (en) | 2020-12-29 | 2020-12-29 | Liquid piezoelectric jet gyroscope based on electrochemical energy conversion and measuring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112762919B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB971984A (en) * | 1963-04-17 | 1964-10-07 | Bosch Arma Corp | Improvements in or relating to gyroscopes |
| CN2149603Y (en) * | 1993-01-28 | 1993-12-15 | 上海市电机技术研究所 | Sensing Device for measuring inclination |
| CN1326090A (en) * | 2001-06-15 | 2001-12-12 | 清华大学 | Bidirectionally synthesizing jet gyroscope |
| CN2722252Y (en) * | 2004-05-20 | 2005-08-31 | 北京大学 | Miniature jet flow angle speed sensor |
| CN101140165A (en) * | 2006-09-08 | 2008-03-12 | 刘胜 | Micro-heat current gyroscopes |
| WO2011017604A1 (en) * | 2009-08-06 | 2011-02-10 | Met Tech Inc. | Non-magnetic azimuth sensing with met electrochemical sensors |
| CN102305625A (en) * | 2011-07-07 | 2012-01-04 | 西北工业大学 | Novel MEMS (Micro-electromechanical System) jet rotor gyroscope |
| CN104457727A (en) * | 2013-09-12 | 2015-03-25 | 北京信息科技大学 | Micromechanical piezoelectric jet gyroscope |
| CN104482929A (en) * | 2014-11-20 | 2015-04-01 | 上海应用技术学院 | Heat flux energy-based gyroscope capable of simultaneously measuring angular velocity and accelerated velocity |
-
2020
- 2020-12-29 CN CN202011588067.3A patent/CN112762919B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB971984A (en) * | 1963-04-17 | 1964-10-07 | Bosch Arma Corp | Improvements in or relating to gyroscopes |
| CN2149603Y (en) * | 1993-01-28 | 1993-12-15 | 上海市电机技术研究所 | Sensing Device for measuring inclination |
| CN1326090A (en) * | 2001-06-15 | 2001-12-12 | 清华大学 | Bidirectionally synthesizing jet gyroscope |
| CN2722252Y (en) * | 2004-05-20 | 2005-08-31 | 北京大学 | Miniature jet flow angle speed sensor |
| CN101140165A (en) * | 2006-09-08 | 2008-03-12 | 刘胜 | Micro-heat current gyroscopes |
| WO2011017604A1 (en) * | 2009-08-06 | 2011-02-10 | Met Tech Inc. | Non-magnetic azimuth sensing with met electrochemical sensors |
| CN102305625A (en) * | 2011-07-07 | 2012-01-04 | 西北工业大学 | Novel MEMS (Micro-electromechanical System) jet rotor gyroscope |
| CN104457727A (en) * | 2013-09-12 | 2015-03-25 | 北京信息科技大学 | Micromechanical piezoelectric jet gyroscope |
| CN104482929A (en) * | 2014-11-20 | 2015-04-01 | 上海应用技术学院 | Heat flux energy-based gyroscope capable of simultaneously measuring angular velocity and accelerated velocity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112762919A (en) | 2021-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Haneveld et al. | Modeling, design, fabrication and characterization of a micro Coriolis mass flow sensor | |
| Agafonov et al. | Electrochemical seismometers of linear and angular motion | |
| Larkam | Theoretical analysis of the solion polarized cathode acoustic linear transducer | |
| JPS584763B2 (en) | flow rate measuring device | |
| CN106597527B (en) | Integrated three axis electrochemistry geophones and its detection method | |
| CN104457727A (en) | Micromechanical piezoelectric jet gyroscope | |
| CN112762919B (en) | Liquid piezoelectric jet gyroscope based on electrochemical energy conversion and measuring method | |
| RU2659578C1 (en) | Method of manufacture of conversion element of molecular electronic movement sensor | |
| Xu et al. | The MEMS-based electrochemical seismic sensor with integrated sensitive electrodes by adopting anodic bonding technology | |
| CN110068858B (en) | Triaxial integrated electrochemical geophone based on MEMS | |
| Kälvesten et al. | Small piezoresistive silicon microphones specially designed for the characterization of turbulent gas flows | |
| Haneveld et al. | Micro Coriolis mass flow sensor with integrated capacitive readout | |
| CN214621218U (en) | Full-bridge double-push-pull flow z-axis film gyroscope | |
| CN212082390U (en) | T-shaped push-pull flow micromechanical double-shaft film gyroscope | |
| CN113790707B (en) | Thermal convection type electrochemical tilt angle sensor | |
| JPH0378624A (en) | Vortex flowmeter | |
| Cheung et al. | A Liquid Medium Coriolis Gyroscope based on Electrochemical Molecular Electronic Transducer for Low Angular Rate Sensing | |
| Liang et al. | Molecular electronic transducer based tilting sensors | |
| JP3344846B2 (en) | Fluidic gas meter | |
| RU2724303C1 (en) | Method of providing temperature stability of parameters of a molecular-electronic converter in high frequency range | |
| CN113777348B (en) | Moving electrode type electrochemical inertial sensor | |
| CN214621216U (en) | Four-bridge cross-flow type micromechanical z-axis film gyroscope | |
| CN214621217U (en) | Half-bridge push-pull flow z-axis film gyroscope | |
| CN212082387U (en) | Push-pull flow type micro mechanical Z-axis film gyroscope | |
| CN212082382U (en) | Linear push-pull flow micromechanical uniaxial film gyroscope |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |