CN207180794U - Flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment - Google Patents
Flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment Download PDFInfo
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- CN207180794U CN207180794U CN201721091225.8U CN201721091225U CN207180794U CN 207180794 U CN207180794 U CN 207180794U CN 201721091225 U CN201721091225 U CN 201721091225U CN 207180794 U CN207180794 U CN 207180794U
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- degree sensor
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Abstract
It the utility model is related to a kind of flowmeter high-resolution based on twin shaft magnetic degree sensor and count conversion equipment.It is characterized in that including counting frame, counter, drive gear, annular magnetic steel and twin shaft magnetic degree sensor, counter and drive gear are arranged on counting frame, the great wheel of driving gear drives counter, annular magnetic steel is set on drive gear, drive gear front sets a magnetic degree collection plate, magnetic degree collection plate is arranged on counting frame, twin shaft magnetic degree sensor is arranged on magnetic degree collection plate, twin shaft magnetic degree sensor face annular magnetic steel and twin shaft magnetic degree sensor be arranged in parallel with annular magnetic steel.The utility model can improve the resolution ratio gathered in real time, while the device can synchronize positioning to the numeral of character wheel, possess the characteristics of diamagnetic interference performance is strong, and cost is relatively low, simple in construction, and be particularly suitable for use in collection demand of the cut-out type membrane type flowmeter to tiny flow quantity.
Description
Technical field
It the utility model is related to a kind of flowmeter high-resolution based on twin shaft magnetic degree sensor and count conversion equipment.
Background technology
Largely in the cut-out type flowmeter used on Vehicles Collected from Market, typically by carrying out electro mechanical transformation with counter to table,
Read the character wheel count value of table counter.Common mode has：（1）One magnet steel of increase is taken turns in counter second, using dry
Huang pipe or magnetic switch are counted, and count resolution is third round unit indicating value；（2）Transformation second takes turns to the 8th wheel character wheel and used
Photovoltaic principals direct-reading；（3）The 8th wheel is taken turns to using image direct-read identification second.More than（2）（3）Method typically avoids great wheel, because
For great wheel it is static when can be in any angle, the numerical value on character wheel is typically not at positive display location, and other character wheels are static
Shi Douhui is in display and hit exactly, and is easy to photoelectricity or image to be handled.Acquisition resolution highest of the 3 kinds of methods of the above to counter
Second indicating value unit value can only be arrived, such as general civilian flowmeter counter indicating value end position is 0.001 side, and above method is most
Height is only capable of reaching 0.01 side, and actually most producer's intelligence meter reading resolution ratio are generally 0.1 side, continues tiny flow quantity for combustion gas
The unusual condition of leakage, above structure can not meet collection demand.
Utility model content
For problems of the prior art, the purpose of this utility model is that providing a kind of twin shaft magnetic degree that is based on passes
The flowmeter high-resolution of sensor counts the technical scheme of conversion equipment.
The described flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment, it is characterised in that including
Counting frame, counter, drive gear, annular magnetic steel and twin shaft magnetic degree sensor, counter and drive gear are arranged at meter
On several framves, the great wheel of driving gear drives counter sets annular magnetic steel on drive gear, and drive gear front sets a magnetic deviation
Collection plate is spent, magnetic degree collection plate is arranged on counting frame, and twin shaft magnetic degree sensor is arranged on magnetic degree collection plate, twin shaft
Magnetic degree sensor face annular magnetic steel and twin shaft magnetic degree sensor be arranged in parallel with annular magnetic steel.
The described flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment, it is characterised in that described
The connection of twin shaft magnetic degree sensor sets an AD Acquisition Circuit, and AD Acquisition Circuit is arranged on display control circuit plate.
The described flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment, it is characterised in that described
0 degree of twin shaft magnetic degree sensors X direction, the positive polarity direction of 90 degree of position correspondence annular magnets of Y-direction, the fixed position are corresponding
The start index of numeral 0 in great wheel, the position for the corresponding great wheel numeral 0 to 9 of 0 to 360 degree that twin shaft magnetic degree sensor collects
Put.
The utility model sets annular magnetic steel on drive gear, and drive gear front sets a magnetic degree collection plate, double
Axle magnetic degree sensor is arranged on magnetic degree collection plate, twin shaft magnetic degree sensor face annular magnetic steel and twin shaft magnetic degree biography
Sensor be arranged in parallel with annular magnetic steel, and the output of twin shaft magnetic degree sensor is signally attached to display control circuit plate, and uses
AD Acquisition Circuit is acquired, due to structure place on measure twin shaft magnetic degree sensors X, Y-axis original position with counting
' 0 ' word scale alignment in device great wheel, position of 0 to 360 degree equivalent to wheel digital 0 to 9 is collected, as long as therefore sampling week
Phase is less than the most fast time that gear rotates a circle, so that it may current scale location is directly conversed without losing continuous data, according to
The anglec of rotation of twin shaft magnetic degree sensor collection, can segment out current character wheel display location, can strengthen cut-out type flowmeter and exist
Continue safety assurance ability during low discharge leakage.
The utility model can improve the resolution ratio gathered in real time, while the device can be synchronized to the numeral of character wheel and determined
Position, possesses the characteristics of diamagnetic interference performance is strong, and cost is relatively low, simple in construction, the cut-out type diaphragm gas meter that is particularly suitable for use in is to micro-
The collection demand of low discharge.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the scheme of installation of annular magnetic steel；
In figure：1- counting frames, 2- counters, 3- drive gears, 4- annular magnetic steels, 5- great wheels, 6- magnetic degree collection plates.
Embodiment
With reference to Figure of description, the utility model is described in further detail：
Flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment, including counting frame 1, counter 2,
Drive gear 3, annular magnetic steel 4 and twin shaft magnetic degree sensor, counter 2 and drive gear 3 are arranged on counting frame 1, are driven
The great wheel 5 of the actuation counter of moving gear 3, annular magnetic steel 4 is set on drive gear 3, uses the sliding tooth of actuation counter great wheel
Wheel sets a magnetic degree collection plate 6 as prototype gear, drive gear front, and magnetic degree collection plate is arranged on counting frame, double
Axle magnetic degree sensor is arranged on magnetic degree collection plate 6, twin shaft magnetic degree sensor face annular magnetic steel and twin shaft magnetic degree
Sensor be arranged in parallel with annular magnetic steel, can carry out angular surveying to annular magnetic steel in a non contact fashion.
Twin shaft magnetic degree sensor uses TMR3002,90 degree of 0 degree of twin shaft magnetic degree sensors X direction, Y-direction positions pair
The positive polarity direction of annular magnet is answered, the fixed position corresponds to the start index of the numeral 0 in great wheel, twin shaft magnetic degree sensor
The position of the corresponding great wheel numeral 0 to 9 of 0 to 360 degree collected.Twin shaft magnetic degree sensor is also connected with setting an AD to gather electricity
Road, AD Acquisition Circuit are arranged on display control circuit plate.It is the basic composition of each flowmeter on display control circuit plate,
This is repeated no more.
The principle of this programme acquisition method is as follows：Liquid crystal is added up into registration during Default Value to be set to show with mechanical counter
Number is identical, when flowmeter just conventional gas, drive gear and the annular magnetic steel synchronous rotary of actuation counter great wheel, is positioned over ring
Twin shaft magnetic degree sensor near shape magnet steel can gather out annular magnetic steel X, angle changing of Y-axis on its Plane of rotation, should
Angle changing is the anglec of rotation of the current character wheel relative to the word location of registration ' 0 '.
Embodiment：As shown in figure 1, being the view of counter, wherein drive gear is the gear of direct drive great wheel, is being driven
Annular magnetic steel is set in moving gear or its rotating shaft（Shown in Fig. 2）, twin shaft magnetic degree sensor presses close to annular magnetic steel, twin shaft magnetic deviation
Degree sensor is fixed on counting frame by magnetic degree collection plate, and the output of twin shaft magnetic degree sensor is signally attached to display control
Circuit board processed, and be acquired using AD Acquisition Circuit, TMR3002, the biosensor power consumption can be selected in twin shaft magnetic degree sensor
It is relatively low to meet use demand.
Due to structure place on measure twin shaft magnetic degree sensors X, Y-axis original position with counter great wheel
' 0 ' word scale align, collect 0 to 360 degree equivalent to wheel digital 0 to 9 position, as long as therefore the sampling period be less than gear
The most fast time to rotate a circle, so that it may directly converse current scale location without losing continuous data, due to great wheel rotating speed not
It can be more than not over 1 circle in 41 rpms, 1 second, therefore AD acquisition intervals may be configured as 1 second, so greatly reduce work(
Consumption.
The anglec of rotation gathered according to twin shaft magnetic degree sensor, can segment out current character wheel display location, if using
10 grades of subdivisions, then for the counter of 0.001 side's registration, then resolution ratio is up to 0.001 side, if carrying out 20 grades of subdivisions, resolution
Rate can select according to demand up to 0.0005 side.
Program resolution ratio determines by twin shaft magnetic degree sensor and a/d resolution, but this 2 be far longer than 2% subdivision
Precision, therefore can be higher than 0.001 side for the counter of 0.001 side, count resolution, real-time accuracy is passed by twin shaft magnetic degree
Sensor is linear, the precision of annular magnet and twin shaft magnetic degree sensor mounting location determines, can totally be better than 0.002 side.
Claims (3)
1. flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment, it is characterised in that including counting frame,
Counter, drive gear, annular magnetic steel and twin shaft magnetic degree sensor, counter and drive gear are arranged on counting frame,
The great wheel of driving gear drives counter, annular magnetic steel is set on drive gear, and drive gear front sets a magnetic degree to gather
Plate, magnetic degree collection plate are arranged on counting frame, and twin shaft magnetic degree sensor is arranged on magnetic degree collection plate, twin shaft magnetic degree
Sensor face annular magnetic steel and twin shaft magnetic degree sensor be arranged in parallel with annular magnetic steel.
2. the flowmeter high-resolution according to claim 1 based on twin shaft magnetic degree sensor counts conversion equipment, its
It is characterised by that the twin shaft magnetic degree sensor connection sets an AD Acquisition Circuit, AD Acquisition Circuit is arranged on display control circuit
On plate.
3. the flowmeter high-resolution according to claim 1 based on twin shaft magnetic degree sensor counts conversion equipment, its
0 degree of the twin shaft magnetic degree sensors X direction, the positive polarity direction of 90 degree of position correspondence annular magnets of Y-direction are characterised by, should
The start index of numeral 0 in position correspondence great wheel, the corresponding great wheel numeral 0 of 0 to 360 degree that twin shaft magnetic degree sensor collects
To 9 position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091225.8U CN207180794U (en) | 2017-08-29 | 2017-08-29 | Flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091225.8U CN207180794U (en) | 2017-08-29 | 2017-08-29 | Flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180794U true CN207180794U (en) | 2018-04-03 |
Family
ID=61739465
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721091225.8U Active CN207180794U (en) | 2017-08-29 | 2017-08-29 | Flowmeter high-resolution based on twin shaft magnetic degree sensor counts conversion equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207180794U (en) |
-
2017
- 2017-08-29 CN CN201721091225.8U patent/CN207180794U/en active Active
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