CN212391084U - Radio frequency admittance level meter - Google Patents
Radio frequency admittance level meter Download PDFInfo
- Publication number
- CN212391084U CN212391084U CN202021355130.4U CN202021355130U CN212391084U CN 212391084 U CN212391084 U CN 212391084U CN 202021355130 U CN202021355130 U CN 202021355130U CN 212391084 U CN212391084 U CN 212391084U
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- electrode
- shielding layer
- radio frequency
- frequency admittance
- circuit board
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Abstract
The utility model discloses a radio frequency admittance level meter relates to level control technical field, comprises gauge outfit subassembly and sensor two parts, and the inside integrated circuit board that is equipped with of gauge outfit subassembly, sensor part include bottom electrode screw rod and bottom electrode, gauge outfit subassembly lower extreme are fixed with the pole that connects, connect the pole below to connect shielding layer, last electrode, shielding layer and bottom electrode down in proper order, the top of electrode screw rod be fixed in and connect the pole in and pass shielding layer, last electrode, shielding layer down in proper order, and the bottom end is arranged in the top recess of bottom electrode. Its structural design is reasonable, utilizes the inside wire of upper and lower electrode and the integrated circuit board in the electron gauge outfit to be connected and the sealed structure between electrode and the shielding layer, can prevent effectively that the material adhesion from on the probe and entering into between electrode and the shielding layer, avoids producing false signal, improves measurement accuracy, and this device casing is explosion-proof shell simultaneously, has effectively compensatied the not enough of prior art, has satisfied actual conditions's needs.
Description
Technical Field
The utility model relates to a level control technical field specifically is a radio frequency admittance level meter.
Background
The radio frequency admittance level meter is a general level meter for measuring continuous level, the product is applied to industrial and mining sites and is suitable for most application occasions, and the meter consists of a circuit unit, a set of explosion-proof shell and a rod-type or cable-type sensing element; the radio frequency admittance level meter has strong universality, can measure liquid level and material level, can meet the measurement requirements of different temperatures, pressures and media, and can be applied to severe occasions such as corrosion, impact and the like; however, the circuit design of the existing radio frequency admittance level meter cannot avoid the adhesion of materials on the probe, the probe is easy to generate false signals, the error of the measurement result is large, meanwhile, the electrode and the shielding layer are not sealed, and external media are easy to enter the space between the electrode and the shielding layer to influence the measurement precision.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, provide a radio frequency admittance level meter.
The utility model relates to a radio frequency admittance level meter comprises gauge outfit subassembly and sensor two parts, and the inside integrated circuit board that is equipped with of gauge outfit subassembly, sensor part include bottom electrode screw rod and bottom electrode, gauge outfit subassembly lower extreme is fixed with the extension pole, connect the pole below to connect in proper order shielding layer, last electrode, shielding layer and bottom electrode down, the top of electrode screw rod be fixed in and connect the pole in and pass shielding layer, last electrode, shielding layer down in proper order, and the bottom electrode is arranged in the top recess of bottom electrode to the lower extreme.
As a further improvement, the upper end of the lower shielding layer is arranged in the groove of the lower end of the upper electrode, the upper end of the upper electrode is arranged in the groove of the lower end of the upper shielding layer, and the upper end of the upper shielding layer is arranged in the groove of the lower end of the extension rod.
As a further improvement of the utility model, the upper electrode and the lower electrode are internally provided with leads which are respectively connected with the integrated circuit board in the gauge outfit assembly, and the integrated circuit board is respectively transmitted with signals.
As a further improvement of the utility model, the flange is installed with the grafting department of connecting the pole to the upper shield layer.
As a further improvement, the gauge outfit assembly adopts an explosion-proof shell.
As a further improvement, the sealing rings are arranged in the grooves of the electrode screw and the lower electrode, the grooves of the upper electrode and the upper electrode lower end, the grooves of the upper shielding layer and the extension rod, and the upper shielding layer and the extension rod.
The utility model discloses a radio frequency admittance level meter, structural design is reasonable, utilize the integrated circuit board in the inside wire of upper electrode and bottom electrode and the electron gauge outfit to be connected and electrode and shielding layer between the sealed structure, can prevent effectively that the material adhesion from on the probe and entering into between electrode and the shielding layer, thereby avoid producing false signal, improve measuring accuracy, the meter casing of this radio frequency admittance level meter is explosion-proof shell simultaneously, the protection is firm, the pleasing to the eye exquisiteness of appearance, the not enough of prior art has effectively been compensatied, actual conditions's needs have been satisfied.
Drawings
FIG. 1 is a schematic structural view of a radio frequency admittance level meter according to the present invention;
fig. 2 is a cross-sectional view of the rf admittance level meter of the present invention.
Detailed Description
The utility model relates to a radio frequency admittance level meter, which comprises a meter head component 1 and a sensor, wherein an integrated circuit board 2 is arranged in the meter head component 1, the sensor comprises a lower electrode screw rod 5 and a lower electrode 6, a connecting rod 4 is fixed at the lower end of the gauge outfit component 1, a shielding layer 8, an upper electrode 10, a lower shielding layer 7 and a lower electrode 6 are sequentially connected below the connecting rod 4, the top end of an electrode screw rod 5 is fixed in the connecting rod 4 and sequentially passes through the upper shielding layer 8, the upper electrode 10 and the lower shielding layer 7, and the lower end is arranged in a groove at the top end of the lower electrode 6, a flange 3 is arranged at the differential joint of the upper shielding layer 8 and the connecting rod 4, and sealing rings are arranged in the grooves of the electrode screw 5 and the lower electrode 6, the grooves of the lower shielding layer 7 and the upper electrode 10, the grooves at the lower ends of the upper electrode 10 and the upper shielding layer 8, and the grooves of the upper shielding layer 8 and the connecting rod 4.
When the utility model discloses when using, will the utility model discloses a bottom electrode 6 places in the liquid, bottom electrode 6 will electrically conduct when liquid is to its pressurization, produces a high frequency signal by the electronic circuit, sends to supreme electrode 10 and lower shielding layer 7, because it has the wire to be connected with integrated circuit board 2 in the gauge outfit subassembly respectively to go up electrode 10 and bottom electrode 6 inside, so bottom electrode 6 just can give integrated circuit board 2 with the signal transmission of level information to gauge outfit subassembly 1 will obtain the object position.
When the position of an object is changed, the lower electrode 6 feeds the change back to an electronic circuit through the upper electrode 10, the electronic circuit compares a comprehensive change signal of capacitive reactance and impedance with a reference signal, when the difference between the two signals reaches a certain magnitude, the output state of the relay is changed, so that the object position change signal is indicated, the signal is transmitted to the integrated circuit board 3, and the integrated circuit board 3 in the gauge head assembly 2 has the functions of signal conversion and signal output, and the output signal is a switching signal, so that the switching signal can be output to monitoring equipment through the control unit.
Claims (6)
1. A radio frequency admittance level meter is composed of a meter head component (1) and a sensor, it is characterized in that an integrated circuit board (2) is arranged in the gauge head component (1), the sensor part comprises a lower electrode screw rod (5) and a lower electrode (6), a connecting rod (4) is fixed at the lower end of the gauge head component (1), a shielding layer (8), an upper electrode (10), a lower shielding layer (7) and a lower electrode (6) are sequentially connected below the connecting rod (4), an electrode screw rod (5) is arranged in the connecting rod (4), the lower end of the lower shielding layer (7) is arranged in a groove at the lower end of the upper electrode (10), the upper end of the upper electrode (10) is arranged in the groove at the lower end of the upper shielding layer (8), the upper end of the upper shielding layer (8) is arranged in the groove at the lower end of the connecting rod (4).
2. A radio frequency admittance level gauge as claimed in claim 1, wherein the upper electrode (10) and the lower electrode (6) have internal conductors for connection to an integrated circuit board (2) in the gauge head assembly, respectively, and for transmitting signals to the integrated circuit board (2), respectively.
3. A radio frequency admittance level gauge as claimed in claim 1, wherein the difference between the upper shield (8) and the extension rod (4) is provided with a flange (3).
4. A radio frequency admittance level gauge as claimed in claim 1, wherein the integrated circuit board (2) inside the gauge head assembly (1) has signal conversion and signal output functions, the output signal of which is a switching signal.
5. A radio frequency admittance level gauge as claimed in claim 1, wherein the gauge head assembly (1) employs an explosion-proof housing.
6. The radio frequency admittance level meter according to claim 1, wherein sealing rings are provided in the grooves of the electrode screw (5) and the lower electrode (6), in the grooves of the lower shielding layer (7) and the upper electrode (10), in the grooves of the lower ends of the upper electrode (10) and the upper shielding layer (8), and in the grooves of the upper shielding layer (8) and the connecting rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021355130.4U CN212391084U (en) | 2020-07-12 | 2020-07-12 | Radio frequency admittance level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021355130.4U CN212391084U (en) | 2020-07-12 | 2020-07-12 | Radio frequency admittance level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212391084U true CN212391084U (en) | 2021-01-22 |
Family
ID=74254551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021355130.4U Active CN212391084U (en) | 2020-07-12 | 2020-07-12 | Radio frequency admittance level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212391084U (en) |
-
2020
- 2020-07-12 CN CN202021355130.4U patent/CN212391084U/en active Active
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