CN217716293U - Piezoelectric roughness sensor based on ICP circuit - Google Patents
Piezoelectric roughness sensor based on ICP circuit Download PDFInfo
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- CN217716293U CN217716293U CN202123168022.3U CN202123168022U CN217716293U CN 217716293 U CN217716293 U CN 217716293U CN 202123168022 U CN202123168022 U CN 202123168022U CN 217716293 U CN217716293 U CN 217716293U
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Abstract
The utility model discloses a belong to shape measurement technical field, specifically be a piezoelectricity roughness sensor based on ICP circuit, the movable sleeve comprises a sleeve, the left end of lateral wall vertically is provided with the contact pilotage under the sleeve, the external fixation of contact pilotage is provided with the guide head, telescopic inside transversely is provided with the spring bracket, carry out miniaturized design with charge amplifier, make inside it can arrange the sensor in, the problem that the big driving force of charge signal internal resistance is weak has been solved, design parasitic power supply circuit on built-in circuit board, the problem of signal and power sharing root line has been solved, adopt sleeve overall structure, external humiture change to piezoelectric crystal's influence has been reduced, in order to realize telescopic wholeness, the guide head hardens telescopic partly and realizes, almost no gap between each device, come to carry out the gas tightness processing to the gap with the thread gluing after the assembly, the convection current of gaseous and external gas in the inner chamber has been reduced, the influence of external humiture to piezoelectric crystal is reduced as far as possible.
Description
Technical Field
The utility model relates to a shape measurement technical field specifically is a piezoelectricity roughness sensor based on ICP circuit.
Background
The high-precision roughness meter is an important product in the field of precision shape measurement, and with the continuous improvement of the processing precision requirement in the manufacturing industry, the surface roughness is an important index for judging whether the product is qualified or not. Such as automobiles, airplanes, high-precision machine tools, high-speed rails, etc., require relatively strict surface roughness requirements for each part.
The current contact type roughness meter mainly comprises two principles: piezoelectric and inductive, the two differences being: the piezoelectric circuit has simple structure and relatively low cost, but the piezoelectric crystal/ceramic is a porous substance and is easily influenced by temperature and humidity, so that the measurement error is increased; the inductive roughness sensor is not sensitive to temperature and humidity, but the circuit structure is relatively complex and the cost is relatively high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a piezoelectricity roughness sensor based on ICP circuit to solve present roughness meter that proposes in the above-mentioned background art and divide into two kinds, the circuit structure of piezoelectric type is simple, and the cost is lower relatively, but piezoelectric crystal/pottery are porous material, receives the influence of temperature humidity very easily, and makes the measuring error grow, and inductance type roughness sensor all can not be too sensitive to temperature, humidity, but circuit structure is complicated relatively, the relatively higher problem of cost.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a piezoelectricity roughness sensor based on ICP circuit, includes the sleeve, the left end of lateral wall vertically is provided with the contact pilotage under the sleeve, the external fixation of contact pilotage is provided with leads the head, telescopic inside transversely is provided with the spring frame, the right-hand member of lateral wall is provided with the base member under the spring frame, the left end threaded connection of base member lateral wall has first screw, the right-hand member threaded connection of first screw has the second screw, the upper end of first screw runs through the upper end that the spring frame extends to the spring frame and fixes and be provided with piezoelectric crystal, the lateral wall that the upper end of second screw runs through the spring frame extends to the upper end of spring frame and fixes and be provided with the ICP circuit board, the fixed briquetting that is provided with in upper end of ICP circuit board, the upper end of ICP circuit board is provided with the coaxial line.
Preferably, the left end of the spring frame side wall is provided with a contact pin mounting hole, and the right end of the contact pin mounting hole is provided with a fabrication hole.
Preferably, a copper block plug is fixedly arranged at the right end of the sleeve.
Preferably, the right end of the coaxial line penetrates through the copper block plug and extends to the outside of the sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
the charge amplifier is miniaturized through the cooperation of the sleeve, the guide head, the contact pin, the spring frame, the first screw, the second screw, the base body, the piezoelectric crystal, the ICP circuit board and the pressing block, and can be arranged in the sensor, so that the problem of high internal resistance and weak driving capability of a charge signal is solved, a parasitic power supply circuit is designed on the built-in circuit board, the problem that the signal and a power supply share one line is solved, the integral structure of the sleeve is adopted, the influence of external temperature and humidity change on the piezoelectric crystal is reduced, in order to realize the integrity of the sleeve, the guide head is realized by hardening one part of the sleeve, gaps hardly exist among all devices, the gaps are subjected to air tightness treatment by using thread glue after assembly, the convection between gas in an inner cavity and external gas is reduced, and the influence of the external temperature and humidity on the piezoelectric crystal is reduced as much as possible.
Drawings
FIG. 1 is a schematic front view of the present invention;
fig. 2 is a schematic top view of the spring frame of fig. 1.
In the figure: the structure comprises a sleeve 1, a guide head 2, a contact pin 3, a spring support 4, a first screw 5, a second screw 6, a base 7, a piezoelectric crystal 8, an ICP circuit board 9, a pressing block 10, a copper block plug 11, a coaxial line 12, a contact pin mounting hole 13 and a fabrication hole 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1-2, the present invention provides a technical solution: a piezoelectric roughness sensor based on an ICP circuit comprises a sleeve 1, a copper block plug 11 is fixedly arranged at the right end of the sleeve 1, a contact pin 3 is longitudinally arranged at the left end of the lower side wall of the sleeve 1, a guide head 2 is fixedly arranged outside the contact pin 3, a spring frame 4 is transversely arranged inside the sleeve 1, a contact pin mounting hole 13 is formed in the left end of the side wall of the spring frame 4, a process hole 14 is formed in the right end of the contact pin mounting hole 13, a base body 7 is arranged at the right end of the lower side wall of the spring frame 4, a first screw 5 is in threaded connection with the left end of the side wall of the base body 7, a second screw 6 is in threaded connection with the right end of the first screw 5, the upper end of the first screw 5 penetrates through the spring frame 4 to extend to the upper end of the spring frame 4 and is fixedly provided with a piezoelectric crystal 8, the upper end of the second screw 6 penetrates through the side wall of the spring frame 4 to extend to the upper end of the spring frame 4 and is fixedly provided with an ICP circuit board 9, a pressing block 10 is fixedly arranged at the upper end of the ICP circuit board 9, a coaxial line 12 is arranged at the upper end of the ICP circuit board 9, the right end of the coaxial line 12, the coaxial line 12 penetrates through the copper block 11 and extends to extend to the outside the sleeve 1, a charge amplifier is miniaturized design can be arranged inside the charge amplifier can be arranged inside the sensor, so that the sensor, and the internal resistance of the sensor can solve the problem of a weak charge signal, the parasitic power supply circuit is designed on the built-in circuit board, the problem that the signal and the power supply share one wire is solved, the sleeve integral structure is adopted, the influence of external temperature and humidity change on the piezoelectric crystal is reduced, in order to realize the integrity of the sleeve, the guide head is realized by hardening one part of the sleeve, gaps are almost not formed among all devices, and after the guide head is assembled, the gaps are subjected to air tightness treatment by using thread glue, so that the convection of gas in an inner cavity and external gas is reduced, and the influence of external temperature and humidity on the piezoelectric crystal is reduced as much as possible.
The working principle is as follows: contact pilotage 3 comprises copper post and diamond needle point, the diamond is the 135 degrees cone, the welding is on the copper post, there is the aperture on spring holder 4, the copper post is placed in the aperture suitable position, with soldering tin with the copper post with spring holder 4 welding together, second screw 6 is fixed ICP circuit board 9 at base member 7, piezoelectric crystal 8 uses the soldering tin welding to contain on spring holder 4, piezoelectric crystal 8's positive pole and ICP circuit board 9 pass through the lead wire enameled wire and are connected, the negative pole and spring holder 4, the ground wire of ICP circuit board 9 is connected, ICP circuit board 9 is connected with the external circuit board through coaxial line 12.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above, it will be obvious to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a piezoelectricity roughness sensor based on ICP circuit, includes sleeve (1), its characterized in that, the left end of lateral wall vertically is provided with contact pilotage (3) under sleeve (1), the external fixation of contact pilotage (3) is provided with leads (2), the inside of sleeve (1) transversely is provided with spring frame (4), the right-hand member of lateral wall is provided with base member (7) under spring frame (4), the left end threaded connection of base member (7) lateral wall has first screw (5), the right-hand member threaded connection of first screw (5) has second screw (6), the upper end of first screw (5) is run through spring frame (4) and is extended to the upper end of spring frame (4) and fixed piezoelectric crystal (8) that is provided with, the lateral wall that the upper end of second screw (6) runs through spring frame (4) extends to the upper end of spring frame (4) and fixed circuit board ICP (9) that is provided with, the upper end fixed briquetting (10) that is provided with of circuit board (ICP (9), the upper end of circuit board (9) is provided with coaxial line (12).
2. An ICP circuit based piezoelectric roughness sensor according to claim 1, wherein: contact pin mounting hole (13) have been seted up to the left end of spring holder (4) lateral wall, fabrication hole (14) have been seted up to the right-hand member of contact pin mounting hole (13).
3. An ICP circuit based piezoelectric roughness sensor according to claim 1, wherein: the right end of the sleeve (1) is fixedly provided with a copper block plug (11).
4. An ICP circuit based piezoelectric roughness sensor according to claim 3, wherein: the right end of the coaxial line (12) penetrates through the copper block plug (11) and extends to the outside of the sleeve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123168022.3U CN217716293U (en) | 2021-12-16 | 2021-12-16 | Piezoelectric roughness sensor based on ICP circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123168022.3U CN217716293U (en) | 2021-12-16 | 2021-12-16 | Piezoelectric roughness sensor based on ICP circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217716293U true CN217716293U (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123168022.3U Active CN217716293U (en) | 2021-12-16 | 2021-12-16 | Piezoelectric roughness sensor based on ICP circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217716293U (en) |
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2021
- 2021-12-16 CN CN202123168022.3U patent/CN217716293U/en active Active
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