CN201497504U - Digital level meter - Google Patents
Digital level meter Download PDFInfo
- Publication number
- CN201497504U CN201497504U CN2009202259123U CN200920225912U CN201497504U CN 201497504 U CN201497504 U CN 201497504U CN 2009202259123 U CN2009202259123 U CN 2009202259123U CN 200920225912 U CN200920225912 U CN 200920225912U CN 201497504 U CN201497504 U CN 201497504U
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- digital
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- gradienter
- fixed plate
- digital gradienter
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Abstract
The utility model discloses a digital level meter comprising a base, wherein a shell is arranged on the base; a signal collecting- receiving device and a measuring-processing circuit are at least arranged on the base or shell; the measuring-processing circuit comprises a digital converter and a single chip; the signal collecting- receiving device and the digital converter are orderly connected, and electrically connected with the single chip; a measuring result displaying device is also arranged on the shell; and the signal collecting- receiving device is a high-precision sensor with small angle. The high-precision sensor with small angle has the advantages of more stable performance, strong interfere assistance and long use life, and can enables the digital level meter to have the advantages of high precision, high speed and good stability. The utility model has the advantages of visual reading, simple structure, small volume, light weight, convenient carrying and the like.
Description
Technical field
The utility model relates to a kind of digital gradienter, a kind of specifically a kind of digital gradienter device that is applied to measurement, adjustment and the monitoring etc. of master plate, leveling ruler, precision measurement instrument and machine tool guideway, workplace linearity, flatness belongs to the fine measuring instrument field.
Background technology
Level meter is a kind of instrument of measurement level, is widely used in fields such as building, rocket launching platform, precision component, bridge and accurate mechanical equipment.
Chinese invention patent 200810034123.1 discloses a kind of electrolevel and calibration and using method.It comprises a rectangular parallelepiped box body, settles acceleration transducer, main circuit board and LCD display driver in the box body, and LCD display and button are set on the box surface; Circuit structure is: microprocessor and mu balanced circuit are arranged on the main circuit board, acceleration transducer connects microprocessor, microprocessor connects LCD display driver and button, the LCD display driver connects LCD display, and mu balanced circuit provides working power for acceleration transducer, microprocessor and LCD display driver.Its calibration steps adopts twice horizontal alignment and twice vertical calibration.Its using method is eminence and the lower that the high-end and low side of level meter is in tested surface respectively.China's utility model patent 86203145 discloses a kind of connected vessels type level meter and has belonged to the horizontal survey instrument.This instrument is mainly by vertical fluid passage body, liquid level circuit opening and closing device, mark device (parts), signal (sensation) device and control liquid device (parts), lifting gear formations such as (parts).
Though above-mentioned horizontal survey instrument respectively has characteristics, but all there are some defectives, such as the measuring accuracy of acceleration transducer own is just not high, so be not suitable for high-acruracy survey, and the level meter of hydraulic control unit is subjected to the influence of external condition bigger easily, less stable, the one-piece construction more complicated, the higher and maintenance of cost is big etc.
The utility model content
Deficiency at the prior art existence, technical problem to be solved in the utility model is, a kind of digital gradienter is provided, the high precision low-angle sensor that it had, can make this digital gradienter possess the measuring accuracy height, speed is fast, good stability, and this digital gradienter one-piece construction is simple, volume is little, characteristics such as in light weight, easy to carry.
For solving the problems of the technologies described above, technical solution adopted in the utility model is, a kind of digital gradienter comprises base, and housing is set on base, and receiving trap and measurement are gathered by at least one place of base or housing also signalization
Treatment circuit, this measurement treatment circuit comprises digital quantizer, single-chip microcomputer, described signal receiving device is linked in sequence with digital quantizer and is electrically connected with single-chip microcomputer, and the measurement result display device also is set on the housing; Described signals collecting receiving trap is a high precision low-angle sensor.
Above-mentioned digital gradienter, it is characterized in that: described high precision low-angle sensor comprises the capacitor system that two pole plates constitute, between the two-plate of described capacitor system chip is set, chip is provided with the hairspring that is connected with circular movable plate electrode, between described chip and the pole plate spacer assembly is set.
Above-mentioned digital gradienter, described differential capacitor fixed plate quantity is provided with two.
Above-mentioned digital gradienter, described chip comprises external fixation ring, circular movable plate electrode and hairspring.
Above-mentioned digital gradienter, the quantity of described hairspring is provided with three, described three hairsprings evenly distribute in 360 degree on the set collar outside, are arranged between external fixation ring and the circular movable plate electrode, are connected on the movable plate electrode after being enclosed around circular movable plate electrode one and 1/3rd by outer shroud successively.
Above-mentioned digital gradienter, described spacer assembly are the capacitor spacer rings, and quantity is provided with two, are separately positioned between fixed plate and the chip.
Above-mentioned digital gradienter, described measurement structure display device is provided with the LCD LCD, and is electrically connected with single-chip microcomputer.
Above-mentioned digital gradienter, described housing is provided with the touch operation operating key, is electrically connected with single-chip microcomputer.
Above-mentioned digital gradienter also is provided with handle on the described housing.
The advantage of the utility model digital gradienter is: the high precision low-angle sensor that it had, chip adopts the beryllium-bronze of thickness 0.05mm to make substrate, and carried out smooth processing and vacuum aging and handled, performance is more stable, strong interference immunity, high life, can make this digital gradienter possess the measuring accuracy height, speed is fast, good stability, this digital gradienter has characteristics such as reading is directly perceived, simple in structure, volume is little, in light weight and easy to carry.Be widely used in the measurement of flat board, leveling ruler, precision measurement instrument and machine tool guideway, workplace linearity, flatness and the adjustment at relative surface level inclination angle.Also can be used for simultaneously the production of accurate mechanical equipment and the detection of installation aspect.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Fig. 1 is the outside drawing of the utility model digital gradienter;
Fig. 2 is the metering circuit structured flowchart of the utility model digital gradienter;
Fig. 3 is the structural representation of the high precision low-angle sensor of the utility model digital gradienter;
Fig. 4 is the chip 8 structure enlarged drawings of the described high precision low-angle of Fig. 3 sensor;
Fig. 5 is the structure enlarged drawing of A-A cut-open view shown in Figure 4.
Embodiment
As shown in Figure 1, the utility model digital gradienter, comprise base 1, housing 2 is set on base, housing also is provided with signals collecting, receiving trap and measurement treatment circuit, this measurement treatment circuit comprises electric capacity digital quantizer, single-chip microcomputer, and described signals collecting, receiving trap, digital quantizer are linked in sequence and are electrically connected with single-chip microcomputer, and the measurement result display device also is set on the housing 2; Described signals collecting receiving trap is a high precision low-angle sensor.
This high precision low-angle sensor comprises two differential capacitor fixed plates 6,12, chip 8 and capacitor spacer ring 7; Capacitor spacer ring 7 quantity are provided with two, the number of this differential capacitor fixed plate is set to two, 7 one of capacitor spacer rings are arranged between differential capacitor fixed plate 6 and the chip 8, another is arranged between differential capacitor fixed plate 12 and the chip 8, be used to separate two differential capacitor fixed plates 1, play the effect of insulation.
As shown in Figure 2, high precision low-angle sensor is electrically connected with the electric capacity digital quantizer, the electric capacity digital quantizer is electrically connected with single-chip microcomputer again, touching operating key directly is electrically connected with single-chip microcomputer, LCD drives, LCD is electrically connected in proper order and be electrically connected with single-chip microcomputer, single-chip microcomputer is connected by computing machine with computing machine can analyze data, unifies controlling and driving by single-chip microcomputer.
Shown in Fig. 3,4, this chip 8 is made of external fixation ring 9, circular movable plate electrode 10 and hairspring 11, the quantity of hairspring 11 is set to three, and three hairsprings 11 evenly distribute in 360 °, is connected on the circular movable plate electrode 10 after being enclosed around circular movable plate electrode 10 1 and 1/3rd by outer shroud successively.When this high precision low-angle sensor horizontal positioned, 9, three hairsprings 11 of the external fixation ring of chip 8 and circular movable plate electrode 10 should be in same planes.
As shown in Figure 5, be the cut-open view of chip 8, during this high precision low-angle sensor horizontal positioned, 9, three hairsprings 11 of the external fixation ring of chip 8 and circular movable plate electrode 10 are in same plane.
This high precision low-angle sensor working is: when sensor tilts vertically, chip 8 will produce corresponding displacement, cause the electric capacity of a differential capacitor fixed plate 6 to rise, the electric capacity of another differential capacitor fixed plate 12 descends, and corresponding variation will take place the signal of being exported by circular movable plate electrode 10.
When chip 8 (especially hairspring 11) produces warpage, the connection that makes three hairsprings 11 by circular movable plate electrode 10 is loaded in the axial direction mutually, its result makes the level meter zero-bit produce drift.Also make the elastic property of three hairsprings 11 inconsistent simultaneously, the load condition of every hairspring 11 is also different.In the process that chip 8 sidewinders, the load condition of three hairsprings 11 will change, thereby cause the axial displacement of movable plate electrode and signal output takes place.So the buckling deformation of chip 8 is to cause the main cause of sidewindering output signal.
Because the linearity of electronic measuring instrument, equipment etc., stability all depend on the characteristic of sensor,, be made by photoetching process so the chip 8 of this high precision low-angle sensor is that to adopt thickness be that the beryllium-bronze of 0.05mm is made substrate.Its buckling deformation and material itself have confidential relation, so it is important before the photoetching process smooth and the Ageing Treatment of beryllium-bronze substrate to be caused the pass.Therefore before photoetching process, earlier substrate is carried out smooth processing and vacuum aging processing, make the internal stress of substrate reduce to minimum.
Though the beryllium-bronze substrate has carried out Ageing Treatment, substrate is after photoetching process, and variation has taken place structure, and its internal stress will redistribute.Especially in hairspring 11 processing, big internal stress will make hairspring 11 produce bigger buckling deformation, and these three hairsprings 11 that must cause chip 8 are not in same plane, and this distortion still is the function of time.Like this, when level meter sidewindered, axial displacement just can take place and displayed value is changed in circular movable plate electrode 10.So, after hairspring 11 processing, should in time place in the anchor clamps, in case further produce distortion, and to carry out Ageing Treatment again, to eliminate internal stress.
For making the product easy operating, housing is provided with touch-screen (touch key-press) 4, and is electrically connected with single-chip microcomputer.Be fixed with the handle 3 that is convenient for carrying and measures on the housing 2, the utility model adopts touch induction buttons, appearance looks elegant not only, and theoretically, push button longevity is unlimited, has improved reliability of products.In the design of electronic horizon instrument circuit, adopt single-chip microcomputer as controller.The product display adopts segment encode liquid crystal display 5.The menu that comprises measurement data, storage data sum and various mode of operations shows.On hardware circuit design, make every effort to simple, easily assembling, need not to carry out the circuit debugging of any complexity, for the batch process of product is laid a good foundation.In software design, by the control of software, for product increases following multiple function:
1, has that measurement data is stored, read, delete function, can store 999 data at most.
2, optional position button zero setting (absolute zero position and relative zero-bit).
3, two kinds of mm/m of measuring unit and angle (second) are available.
4, standard RS232 interface output can be directly and the computing machine communication.
5, can preserve and factory reset.
6, has the automatic temperature-adjusting measurement function.
7, automatic power voltage monitoring, low electric weight warning function.
Measuring accuracy of the present utility model can reach 0.001mm/m.
Certainly, above-mentioned explanation is not to be to restriction of the present utility model, and the utility model also is not limited to above-mentioned giving an example, and every variation of making in the utility model essential scope, remodeling, interpolation or replacement and application all should belong to protection domain of the present utility model.
Claims (9)
1. digital gradienter, comprise base, housing is set on base, on base or the housing at least one place also signalization gather receiving trap and measure treatment circuit, this measurement treatment circuit comprises digital quantizer, single-chip microcomputer, signal receiving device is linked in sequence with digital quantizer and is electrically connected with single-chip microcomputer, and the measurement result display device also is set on the described housing; It is characterized in that: described signals collecting receiving trap is a high precision low-angle sensor.
2. digital gradienter according to claim 1, it is characterized in that: described high precision low-angle sensor comprises capacitor system and the signal output apparatus that is made of two pole plates, described pole plate is the differential capacitor fixed plate, signal output apparatus is connected with the differential capacitor fixed plate, between the differential capacitor fixed plate, be provided with chip, be provided with spacer assembly between described chip and the differential capacitor fixed plate.
3. digital gradienter according to claim 2 is characterized in that: described differential capacitor fixed plate quantity is provided with two.
5. digital gradienter according to claim 4 is characterized in that: described chip comprises external fixation ring, circular movable plate electrode and hairspring.
6. digital gradienter according to claim 5, it is characterized in that: the quantity of described hairspring is provided with three, described three hairsprings evenly distribute in 360 degree on the set collar outside, be arranged between external fixation ring and the circular movable plate electrode, be connected on the movable plate electrode after enclosing around circular movable plate electrode one and 1/3rd by outer shroud successively.
7. digital gradienter according to claim 6 is characterized in that: described spacer assembly is the capacitor spacer ring, and quantity is provided with two, is separately positioned between fixed plate and the chip.
8. digital gradienter according to claim 7 is characterized in that: described measurement structure display device is provided with the LCD LCD, and is electrically connected with single-chip microcomputer.
9. digital gradienter according to claim 8 is characterized in that: described housing is provided with the touch operation operating key, is electrically connected with single-chip microcomputer.
10. digital gradienter according to claim 9 is characterized in that: handle also is set on the described housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202259123U CN201497504U (en) | 2009-09-02 | 2009-09-02 | Digital level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202259123U CN201497504U (en) | 2009-09-02 | 2009-09-02 | Digital level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201497504U true CN201497504U (en) | 2010-06-02 |
Family
ID=42440708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202259123U Expired - Fee Related CN201497504U (en) | 2009-09-02 | 2009-09-02 | Digital level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201497504U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288160A (en) * | 2011-07-20 | 2011-12-21 | 天津市电力公司 | Digital angle instrument for measuring two-dimension direction |
-
2009
- 2009-09-02 CN CN2009202259123U patent/CN201497504U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288160A (en) * | 2011-07-20 | 2011-12-21 | 天津市电力公司 | Digital angle instrument for measuring two-dimension direction |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20130902 |