CN204535800U - A kind of magnetic robotization flow recorder - Google Patents
A kind of magnetic robotization flow recorder Download PDFInfo
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- CN204535800U CN204535800U CN201520080403.1U CN201520080403U CN204535800U CN 204535800 U CN204535800 U CN 204535800U CN 201520080403 U CN201520080403 U CN 201520080403U CN 204535800 U CN204535800 U CN 204535800U
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Abstract
The utility model discloses a kind of magnetic robotization flow recorder, comprise the Hard Magnetic runner of multiple coaxial setting, Hard Magnetic runner is circular and has predetermined rotation ratio each other, each Hard Magnetic runner at least one twin shaft magneto-resistor angular transducer corresponding, twin shaft magneto-resistor angular transducer is measured within the scope of 0-360 degree Hard Magnetic runner angle position, twin shaft magneto-resistor angular transducer comprises at least two linear magnetic resistance sensors of single shaft, the linear magnetic resistance sensor of single shaft is X-axis magnetic resistance sensor or Z axis magnetic resistance sensor, X-axis magnetic resistance sensor measures the magnetic-field component of Hard Magnetic runner position along Hard Magnetic runner tangent to periphery direction, Z axis magnetic resistance sensor measures the magnetic-field component of Hard Magnetic runner position along Hard Magnetic runner radial direction.It is flexible that the utility model has installation site relative to the electronic water meter of X, Y twin shaft angular transducer, affects little, and have the advantage of low-power consumption by adjacent Hard Magnetic runner.
Description
Technical field
The utility model relates to magnetic sensor techniques field, particularly relates to a kind of magnetic robotization flow recorder.
Background technology
Direct-reading flow recorder adopts multiple runner for water meter, the runner that runner is coaxial and adjacent has fixing ratio of gear, such as 10:1 namely, first runner rotates 10 circles, second runner just rotates 1 circle, the like, and the conveyor screw that first runner directly drives with current is connected, water meter characterizes discharge by recording spirochetal rotating cycle, owing to meeting metric feature for the ratio of gear of 10:1, therefore, in fact each runner is equivalent to decimal numeral figure place, each runner is become 0-9 many numerals according to angle mark simultaneously, then constitute direct-reading water meter, and in real process, usual employing digital technology, the rotary angle position within the scope of the 0-360 degree of each runner directly monitored by employing angular transducer, conventional technology is pumped FIR laser technology, the anglec of rotation is detected by grating, there are the following problems for this technology:
Grating technology is higher for environmental requirement, requires clean environment, there is not all easy detections to grating such as oil, cigarette, gas, dust and impacts;
And the technology substituted is, adopt magnetic degree sensor technology, for magnetic resistance sensor as TMR, GMR etc., what adopt is the magneto-resistor angular transducer chip of plane X-Y type, by calculating X magnetic-field component and Y magnetic-field component angle the measurement of X, Y-direction magnetic-field component on same chip, realize measurement to the permanent magnetism code-disc anglec of rotation, but its mainly there are the following problems:
1) when, the magneto-resistor angular transducer chip of X-Y type and Circular permanent magnet code-disc come together to take measurement of an angle position, chip measurement plane is located at and is parallel to above the upper and lower base surface area position of Circular permanent magnet code-disc, its responsive magnetic field measured comes from the distributed magnetic field of Circular permanent magnet code-disc on Circular permanent magnet code-disc above bottom surface, therefore the installing space of X-Y magneto-resistor angular transducer chip and field homogeneity district are restricted, and space flexibility is poor;
2), the Circular permanent magnet code-disc of the magneto-resistor angular transducer chip of X-Y type near the rotating magnetic field distribution of upper bottom surface is easily subject to magnet as the interference of soft magnetic material or permanent magnet, and measurement of angle region is changed, can not correctly be taken measurement of an angle, less stable.
In order to overcome the above problems, be the magneto-resistor angular transducer successively disclosing two kinds of different solutions in the patented claim of 2014104116280 and 2014104061428 and be applied to single Hard Magnetic runner at number of patent application.Previous is single-chip off-axis magneto-resistor Z-X angular transducer, by X and Z axis magnetic resistance sensor on the same substrate integrated, by the measurement for X magnetic-field component and Z magnetic-field component of X and Z axis magnetic resistance sensor, export its voltage curve respectively, and the angled relationships obtained between the two, thus the measurement to single Hard Magnetic runner angle can be realized.Rear one by being positioned at same distance above Hard Magnetic runner periphery, and cross over the measurement of the field signal of two Z axis magnetic resistance sensors of circumference 90 degree of radians, and obtain the measurement of two orthogonal magnetic-field components, and calculate the angle in magnetic field, thus determine the rotary angle position of Hard Magnetic runner.Wherein X-direction be defined as Hard Magnetic runner in the direction being tangentially positioned at sensing station, Z-direction is defined as Hard Magnetic runner in the direction being diametrically positioned at sensing station.Two patents are for the chip structure of Z-X angular transducer and kind, and the structure of Z axis magnetic resistance sensor and X-axis magnetic resistance sensor is described.
Z-X twin shaft angular transducer and two Z axis angular transducer have larger Installation Flexibility relative to X-Y twin shaft angular transducer, and Z-X twin shaft angular transducer and two Z axis angular transducer are applicable to the measurement of permanent magnetism runner angle simultaneously.In addition, the utility model further discloses and uses two X-axis axle magnetic resistance sensor to measure X-direction, namely along the magnetic field of tangential direction, to realize the measurement of the angle to runner.
Due to the aggregate that flowmeter is by the form of coaxial and fixed drive ratio between multiple permanent magnetism runner, therefore, be applicable to the above-mentioned Z-X twin shaft angular transducer of single runner and two Z axis angular transducer, measurement that two X-axis angular transducer can be applied to the angle of multiple runners of flowmeter completely.
Utility model content
For above problem, the utility model proposes a kind of magnetic robotization flow recorder, replace X-Y magneto-resistor angular transducer, the rotating magnetic field be positioned at above the upper and lower bottom surface of Circular permanent magnet code-disc is replaced by measuring the radial rotary magnetic field produced outside Circular permanent magnet runner disc edge, and adopt two discrete Z axis or X-axis magnetic resistance sensor chips differing 90 degree of phase places, or single-chip X-Z twin shaft magneto-resistor angular transducer replaces single X-Y magnetic resistance sensor chip, because magnetic resistance sensor chip is positioned at outside Circular permanent magnet code-disc disc, so its installing space dirigibility increases greatly.
To achieve these goals, the technical scheme that provides of the utility model embodiment is as follows:
A kind of magnetic robotization flow recorder, described magnetic robotization flow recorder comprises the Hard Magnetic runner of multiple coaxial setting, described Hard Magnetic runner is circular and has predetermined rotation ratio each other, each described Hard Magnetic runner at least one twin shaft magneto-resistor angular transducer corresponding, described twin shaft magneto-resistor angular transducer is measured within the scope of 0-360 degree described Hard Magnetic runner angle position, described twin shaft magneto-resistor angular transducer comprises at least two linear magnetic resistance sensors of single shaft, the linear magnetic resistance sensor of described single shaft is X-axis magnetic resistance sensor or Z axis magnetic resistance sensor, described Hard Magnetic runner has and was parallel to diametric direction of magnetization, described twin shaft magneto-resistor angular transducer is positioned at the position outside corresponding described Hard Magnetic runner cylindrical side, and described X-axis magnetic resistance sensor measures the magnetic-field component of described Hard Magnetic runner position along described Hard Magnetic runner tangent to periphery direction, described Z axis magnetic resistance sensor measures the magnetic-field component of described Hard Magnetic runner position along described Hard Magnetic runner radial direction.
As further improvement of the utility model, described twin shaft magneto-resistor angular transducer comprises X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer, and wherein said X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer are positioned at the field homogeneity district along short transverse of corresponding permanent magnetism runner.
As further improvement of the utility model, described twin shaft magneto-resistor angular transducer comprises two X-axis magnetic resistance sensor chips or two Z axis magnetic resistance sensor chips or an X-Z twin shaft magnetic resistance sensor, and X-axis magnetic resistance sensor chip or Z axis axle magnetic resistance sensor chip all have identical magnetic field sensitivity.
As further improvement of the utility model, described twin shaft magneto-resistor angular transducer is two Z axis magneto-resistor angular transducers, comprise two Z axis magnetic resistance sensor chips, described Z axis magnetic resistance sensor chip comprises at least one Z axis magnetic resistance sensor, two described Z axis magnetic resistance sensor chips lay respectively at two positions crossing over 90 degree of circular arc phase places above corresponding described Hard Magnetic runner circumference, and apart from described Hard Magnetic runner circumference same distance.
As further improvement of the utility model, described twin shaft magneto-resistor angular transducer is two X-axis magneto-resistor angular transducers, comprise two X-axis magnetic resistance sensor chips, described X-axis magnetic resistance sensor chip comprises at least one X-axis magnetic resistance sensor, two described X-axis magnetic resistance sensor chips lay respectively at two positions crossing over 90 degree of circular arc phase places above corresponding described Hard Magnetic runner circumference, and apart from described Hard Magnetic runner circumference same distance.
As further improvement of the utility model, described twin shaft magneto-resistor angular transducer is single-chip X-Z twin shaft magneto-resistor angular transducer, comprise integrated X-axis magnetic resistance sensor on the same substrate and Z axis magnetic resistance sensor, described single-chip X-Z twin shaft magneto-resistor angular transducer is positioned at a position above corresponding described Hard Magnetic runner circumference.
As further improvement of the utility model, between described Hard Magnetic runner, comprise the soft magnetic material for carrying out magnetic shielding, to reduce Hard Magnetic runner magnetic interference each other.
As further improvement of the utility model, described magnetic robotization flow recorder also comprises PCB, and X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer are directly connected on described PCB.
As further improvement of the utility model, described magnetic robotization flow recorder also comprises switch selection circuit, and described switch selection circuit controls the connection break-make of twin shaft magneto-resistor angular transducer power input and power supply described in each; When reading the information of some described Hard Magnetic runners, need to make the described twin shaft magneto-resistor angular transducer corresponding to this Hard Magnetic runner in running order by described switch selection circuit, when not needing to read this Hard Magnetic runner, the described twin shaft magneto-resistor angular transducer that described on-off circuit makes this Hard Magnetic runner corresponding is in off-position.
As further improvement of the utility model, described magnetic robotization flow recorder also comprises microprocessor, and the output signal of described twin shaft magneto-resistor angular transducer is connected to described microprocessor by A/D conversion and calculates angle.
As further improvement of the utility model, each described Hard Magnetic runner has 0-n digital calibration along disc, described n is integer, n part is divided into by 360 degree, every part of corresponding 360/n degree of circular arc, described microprocessor calculates the described digital calibration described in this corresponding to Hard Magnetic runner according to the anglec of rotation of the described twin shaft magneto-resistor angular transducer record of correspondence.
As further improvement of the utility model, described magnetic robotization flow recorder also comprises I/O module, I/O module be in electronics systems, near-field communications system or radio system any one, described in each, the output signal of twin shaft magneto-resistor angular transducer is after described microprocessor, the flow information recorded by described I/O module output magnetic robotization flow recorder.
As further improvement of the utility model, described magnetic robotization flow recorder also comprises battery, and described battery is described twin shaft magneto-resistor angular transducer, described switch selection circuit, described microprocessor and described I/O module for power supply.
The utility model has following beneficial effect:
It is flexible that magnetic robotization flow recorder has installation site relative to the electronic water meter of X, Y twin shaft angular transducer, affects little, and have the advantage of low-power consumption by adjacent Hard Magnetic runner.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, the accompanying drawing that the following describes is only some embodiments recorded in the utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 be the utility model embodiment a kind of pair of X-axis magneto-resistor angular transducer or two Z axis magneto-resistor angular transducer direct-reading electronic water meter face structural representation;
Fig. 2 is the side-looking structural representation of the utility model embodiment a kind of pair of X-axis magneto-resistor angular transducer or two Z axis magneto-resistor angular transducer direct-reading electronic water meter;
Fig. 3 be in the utility model embodiment two single-chip Z-X twin shaft magneto-resistor angular transducer direct-reading electronic water meter face structural representation;
Fig. 4 is the side-looking structural representation of single-chip Z-X twin shaft magneto-resistor angular transducer direct-reading electronic water meter in the utility model embodiment two;
Fig. 5 is that the typical magnetic field angle of the utility model twin shaft magneto-resistor angular transducer is with Hard Magnetic runner anglec of rotation graph of relation;
Fig. 6 is that the typical two-way output signal of the utility model twin shaft magneto-resistor angular transducer is with Hard Magnetic runner anglec of rotation graph of relation;
Fig. 7 is the signal processing circuit figure of magnetic robotization flow recorder in the utility model embodiment three.
Embodiment
Below with reference to embodiment shown in the drawings, the utility model is described in detail.But these embodiments do not limit the utility model, the structure of those of ordinary skill in the art done by these embodiments, method or conversion functionally are all included in protection domain of the present utility model.
The utility model discloses a kind of magnetic robotization flow recorder, comprise the Hard Magnetic runner of multiple coaxial setting, Hard Magnetic runner is circular and has predetermined rotation ratio each other, each Hard Magnetic runner at least one twin shaft magneto-resistor angular transducer corresponding, twin shaft magneto-resistor angular transducer is measured within the scope of 0-360 degree Hard Magnetic runner angle position, twin shaft magneto-resistor angular transducer comprises at least two linear magnetic resistance sensors of single shaft, the linear magnetic resistance sensor of single shaft is X-axis magnetic resistance sensor or Z axis magnetic resistance sensor, Hard Magnetic runner has and was parallel to diametric direction of magnetization, twin shaft magneto-resistor angular transducer is positioned at the position outside corresponding Hard Magnetic runner cylindrical side, and X-axis magnetic resistance sensor measures the magnetic-field component of Hard Magnetic runner position along Hard Magnetic runner tangent to periphery direction, Z axis magnetic resistance sensor measures the magnetic-field component of Hard Magnetic runner position along Hard Magnetic runner radial direction.
Further, in the utility model, twin shaft magneto-resistor angle magnetic resistance sensor comprises X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer, and X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer are positioned at the field homogeneity district along short transverse of corresponding permanent magnetism runner.
Below with reference to the accompanying drawings and, the utility model is elaborated in conjunction with the embodiments.
Embodiment one
Fig. 1 and 2 is respectively the direct-reading water meter front elevation that comprises two X-axis magneto-resistor angular transducers or two Z axis magneto-resistor angular transducer and side is attempted, wherein twin shaft magneto-resistor angular transducer 2 comprises two X-axis magneto-resistor angular transducer chips or two Z axis magnetic resistance sensor chips 21 and 22, multiple Hard Magnetic runner 1, between Hard Magnetic runner 1, there is predetermined ratio of gear, and there is between Hard Magnetic runner 1 common rotating shaft 4.In addition, the PCB 3 installing twin shaft magneto-resistor angular transducer 2 is also comprised.Hard Magnetic runner 1 is column structure, wherein two X-axis magneto-resistor angular transducer chips or two Z axis magneto-resistor sensing chips 21 and 22 are positioned at position outside the cylindrical side of Hard Magnetic runner 1 or the extended surface of cylindrical side and identical with the side of cylinder of the Hard Magnetic runner 1 of permanent magnetism runner or the vertical range of the extended surface of cylindrical side and cross over two positions of the circular arc of disc 90 degree, in addition, Hard Magnetic runner 1 has and was parallel to diametric direction of magnetization 5.Wherein two X-axis magneto-resistor angular transducer chips or two Z axis magnetic resistance sensor chips have identical magnetic field sensitivity.
Embodiment two
Fig. 3 and Fig. 4 is respectively the direct-reading water meter front elevation and side view that comprise single-chip Z-X twin shaft magneto-resistor angular transducer, and wherein 2 (1) is single-chip Z-X twin shaft magneto-resistor angular transducer, is positioned at the top position of permanent magnetism runner 1 circumference.
In addition the single-chip Z-X twin shaft magneto-resistor angular transducer 2 (1) in the present embodiment also can replace with the Z axis magnetic resistance sensor chip and X-axis magneto-resistor angular transducer chip being positioned at same position, for convenience's sake, the schematic diagram of separate chip is not provided herein.
It should be noted that, the Z sensitive direction of Z axis magnetic resistance sensor chip and single-chip Z-X twin shaft magneto-resistor angular transducer corresponds to the radial direction of sensor chip position place along Hard Magnetic runner, and the sensitive direction of the X-axis magnetic resistance sensor of X-axis magnetic resistance sensor chip and single-chip Z-X twin shaft magneto-resistor angular transducer corresponds to sensor chip position place along the tangential direction of Hard Magnetic runner circumference in this position.
The twin shaft magneto-resistor angular transducer of three types in embodiment one and embodiment two, when being applied to direct-reading water meter, respectively measurement of angle being carried out for each permanent magnetism runner, determining the position of runner, afterwards by means of ratio of gear relation predetermined between runner, directly read the number of total coils of water meter.
For having the twin shaft magneto-resistor angular transducer of two separate chip as two X-axis magnetic resistance sensor chip or two Z axis magnetic resistance sensor chip, the position relationship of itself and corresponding permanent magnetism runner as shown in Figure 2, the angle be now parallel between the magnetization direction of diametric(al) straight line and X-axis is θ, for characterizing the anglec of rotation, and the magnetic field of two X-axis magneto-resistor angular transducer chips or two Z axis magneto-resistor sensing chip 21 and 22 positions is respectively (HX1, and (HX2 HZ1), HZ2), HX1 and HZ1 is the magnetic-field component of 21 positions, HX2 and HZ2 is the magnetic-field component of 22 positions.
Then for two X-axis magneto-resistor angular transducer chip, its measurement magnetic field angle closes and is:
φ＝atan(HX2/HZ1)，HZ1>0；
φ＝π-atan(HX2/HZ1)，HZ1<0，HX2<0；
φ＝π+atan(HX2/HZ1)，HZ1<0，HX2>0；
Now the magnetic-field measurement signal of two X-axis magnetic resistance sensors is respectively: HX2, HZ1.
For two Z axis magneto-resistor angular transducer and single-chip Z-X magneto-resistor angular transducer, it measures magnetic field angle relation with runner anglec of rotation relation respectively as described in patent 2014104116280 and 2014104061428.
Typically measure magnetic field when twin shaft magneto-resistor angular transducer is measured for detected Hard Magnetic runner to distinguish as illustrated in Figures 5 and 6 with the relation curve of the anglec of rotation and the output signals in two measurement magnetic fields, curve 200 has typical linear relationship, the measurement field signal of two sensors is respectively as shown in curve 201 and 202 simultaneously, both have typical case just/cosine curve feature, and phase is approximately 90 degree, therefore employing twin shaft magneto-resistor angular transducer goes for the measurement for Hard Magnetic runner completely, thus realize the design comprising the read-only water meter of twin shaft magneto-resistor angular transducer.
It may be noted that, for two X-axis magneto-resistor angular transducer, two Z axis magneto-resistor angular transducer and Z-X twin shaft magneto-resistor angular transducer, need according to the distance relation between magnetic resistance sensor chip and Hard Magnetic runner, and consider that magnetic interference between multiple Hard Magnetic runner is to optimize the distance between magnetoresistive transducer and Hard Magnetic runner.In addition, for the interval between Z axis magnetic resistance sensor on single-chip Z-X twin shaft magneto-resistor angular transducer or Z axis magnetic resistance sensor unit and Z axis magnetic resistance sensor or X-axis magnetic resistance sensor unit on substrate, also need to consider that the magnetic interference between multiple Hard Magnetic runner is optimized, to ensure that twin shaft angular transducer is in the linear workspace of magnetic field angle with runner anglec of rotation mutual relationship.
In addition, also have a crucial problem to be, for many Hard Magnetics rotaring wheel structure of water meter, there is the problem of the magnetic interference between multiple Hard Magnetic runner, usual employing soft magnetic material carries out the shielding in magnetic field to Hard Magnetic runner, to reduce the magnetic interference of adjacent Hard Magnetic runner.
Embodiment three
Fig. 7 is the signal processing circuit figure of magnetic robotization flow recorder, and it is suitable for the situation of other number Hard Magnetic runners equally to comprise being described of 3 Hard Magnetic runners.The twin shaft magneto-resistor angular transducer that Hard Magnetic runner 31,32 and 33 is corresponding is respectively 17,18 and 19.In the present embodiment, assuming that the uniaxial magnetic resistance angular transducer of two full bridge structures that comprises for arbitrary twin shaft magneto-resistor angular transducer of situation, be equally also applicable to other types as half-bridge, or the single axis angular sensor of accurate bridge construction.
Twin shaft magneto-resistor angular transducer 17, the power output end of 18 or 19 is connected on battery 10 by the SWO in switch selection circuit 16, when a certain twin shaft magneto-resistor angular transducer is in running order, its power supply signal end is just switched on, when not in running order, then power supply is in the state of disconnection, to save power supply.
Equally, the signal output part of twin shaft magneto-resistor angular transducer is connected to signal amplifier 15 and 14 respectively by SW1, SW2, SW3 and the SW4 in switch selection circuit 16, when a certain twin shaft magneto-resistor angular transducer is in running order, the output signal end of two linear magnetic resistance sensors of single shaft corresponding to it is also connected by switch selection circuit 16, thus can enter separately in a signal amplifier.Signal amplifier is differential signal amplifier when the linear magnetic resistance sensor of the single shaft of full bridge structure; During half-bridge structure, it is single input signal amplifier.
The output signal of two linear magnetic resistance sensors of single shaft of twin shaft magneto-resistor angular transducer, respectively through after A-D converter 13, is transformed into digital signal and enters in MCU microprocessor 12, and through calculating, is transformed into angle information.Because each Hard Magnetic runner has 0-10 digital calibration along disc, 10 parts are divided into by 360 degree, corresponding 36 degree of every part of circular arc, microprocessor calculates the digital calibration corresponding to this Hard Magnetic runner further according to the anglec of rotation of the twin shaft magneto-resistor angular transducer record of correspondence, after respectively signal is read for each permanent magnetism runner, obtain total rotating cycle.Calculated information exports through I/O module 11 by MCU microprocessor 12, wherein, I/O module can be in electronics systems, near-field communications system or radio system any one.In addition, battery 10 provides except power supply except giving each twin shaft magneto-resistor angular transducer, return conversion switch 16, signal amplifier 15 and 14, and A-D converter 13, MCU microprocessor 12, I/O module 11 provides power supply.
Magnetic robotization flow recorder in above-described embodiment is described for direct-reading water meter, and the utility model is applicable to direct-reading metering and the display thereof of various liquid or gas in other embodiments.
As can be seen from the above technical solutions, Hard Magnetic runner at least one twin shaft magneto-resistor angular transducer corresponding in the utility model magnetic robotization flow recorder, twin shaft magneto-resistor angular transducer comprises at least two linear magnetic resistance sensors of single shaft, relative to the electronic water meter of X, Y twin shaft angular transducer, there is installation site flexible, affect little by adjacent Hard Magnetic runner, and there is the advantage of low-power consumption.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
Claims (13)
1. a magnetic robotization flow recorder, described magnetic robotization flow recorder comprises the Hard Magnetic runner of multiple coaxial setting, described Hard Magnetic runner is circular and has predetermined rotation ratio each other, each described Hard Magnetic runner at least one twin shaft magneto-resistor angular transducer corresponding, described twin shaft magneto-resistor angular transducer is measured within the scope of 0-360 degree described Hard Magnetic runner angle position, it is characterized in that, described twin shaft magneto-resistor angular transducer comprises at least two linear magnetic resistance sensors of single shaft, the linear magnetic resistance sensor of described single shaft is X-axis magnetic resistance sensor or Z axis magnetic resistance sensor, described Hard Magnetic runner has and was parallel to diametric direction of magnetization, described twin shaft magneto-resistor angular transducer is positioned at the position outside corresponding described Hard Magnetic runner cylindrical side, and described X-axis magnetic resistance sensor measures the magnetic-field component of described Hard Magnetic runner position along described Hard Magnetic runner tangent to periphery direction, described Z axis magnetic resistance sensor measures the magnetic-field component of described Hard Magnetic runner position along described Hard Magnetic runner radial direction.
2. magnetic robotization flow recorder according to claim 1, it is characterized in that, described twin shaft magneto-resistor angular transducer comprises X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer, and wherein said X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer are positioned at the field homogeneity district along short transverse of corresponding permanent magnetism runner.
3. magnetic robotization flow recorder according to claim 1, it is characterized in that, described twin shaft magneto-resistor angular transducer comprises two X-axis magnetic resistance sensor chips or two Z axis magnetic resistance sensor chips or an X-Z twin shaft magnetic resistance sensor, and X-axis magnetic resistance sensor chip or Z axis axle magnetic resistance sensor chip all have identical magnetic field sensitivity.
4. magnetic robotization flow recorder according to claim 3, it is characterized in that, described twin shaft magneto-resistor angular transducer is two Z axis magneto-resistor angular transducers, comprise two Z axis magnetic resistance sensor chips, described Z axis magnetic resistance sensor chip comprises at least one Z axis magnetic resistance sensor, two described Z axis magnetic resistance sensor chips lay respectively at two positions crossing over 90 degree of circular arc phase places above corresponding described Hard Magnetic runner circumference, and apart from described Hard Magnetic runner circumference same distance.
5. magnetic robotization flow recorder according to claim 3, it is characterized in that, described twin shaft magneto-resistor angular transducer is two X-axis magneto-resistor angular transducers, comprise two X-axis magnetic resistance sensor chips, described X-axis magnetic resistance sensor chip comprises at least one X-axis magnetic resistance sensor, two described X-axis magnetic resistance sensor chips lay respectively at two positions crossing over 90 degree of circular arc phase places above corresponding described Hard Magnetic runner circumference, and apart from described Hard Magnetic runner circumference same distance.
6. magnetic robotization flow recorder according to claim 3, it is characterized in that, described twin shaft magneto-resistor angular transducer is single-chip X-Z twin shaft magneto-resistor angular transducer, comprise integrated X-axis magnetic resistance sensor on the same substrate and Z axis magnetic resistance sensor, described single-chip X-Z twin shaft magneto-resistor angular transducer is positioned at a position above corresponding described Hard Magnetic runner circumference.
7. magnetic robotization flow recorder according to claim 1, is characterized in that, comprises the soft magnetic material for carrying out magnetic shielding between described Hard Magnetic runner, to reduce Hard Magnetic runner magnetic interference each other.
8. magnetic robotization flow recorder according to claim 2, it is characterized in that, described magnetic robotization flow recorder also comprises PCB, and X-axis magnetic resistance sensor chip or Z axis magnetic resistance sensor chip or single-chip Z-X twin shaft magneto-resistor angular transducer are directly connected on described PCB.
9. magnetic robotization flow recorder according to claim 1, it is characterized in that, described magnetic robotization flow recorder also comprises switch selection circuit, and described switch selection circuit controls the connection break-make of twin shaft magneto-resistor angular transducer power input and power supply described in each; When reading the information of some described Hard Magnetic runners, need to make the described twin shaft magneto-resistor angular transducer corresponding to this Hard Magnetic runner in running order by described switch selection circuit, when not needing to read this Hard Magnetic runner, the described twin shaft magneto-resistor angular transducer that described on-off circuit makes this Hard Magnetic runner corresponding is in off-position.
10. magnetic robotization flow recorder according to claim 9, it is characterized in that, described magnetic robotization flow recorder also comprises microprocessor, and the output signal of described twin shaft magneto-resistor angular transducer is connected to described microprocessor by A/D conversion and calculates angle.
11. magnetic robotization flow recorders according to claim 10, it is characterized in that, each described Hard Magnetic runner has 0-n digital calibration along disc, described n is integer, n part is divided into by 360 degree, every part of corresponding 360/n degree of circular arc, described microprocessor calculates the described digital calibration described in this corresponding to Hard Magnetic runner according to the anglec of rotation of the described twin shaft magneto-resistor angular transducer record of correspondence.
12. magnetic robotization flow recorders according to claim 10, it is characterized in that, described magnetic robotization flow recorder also comprises I/O module, I/O module be in electronics systems, near-field communications system or radio system any one, described in each, the output signal of twin shaft magneto-resistor angular transducer is after described microprocessor, the flow information recorded by described I/O module output magnetic robotization flow recorder.
13. magnetic robotization flow recorders according to claim 12, it is characterized in that, described magnetic robotization flow recorder also comprises battery, and described battery is described twin shaft magneto-resistor angular transducer, described switch selection circuit, described microprocessor and described I/O module for power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520080403.1U CN204535800U (en) | 2015-02-04 | 2015-02-04 | A kind of magnetic robotization flow recorder |
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| CN201520080403.1U CN204535800U (en) | 2015-02-04 | 2015-02-04 | A kind of magnetic robotization flow recorder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596605A (en) * | 2015-02-04 | 2015-05-06 | 江苏多维科技有限公司 | Magnetic automation flow recorder |
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2015
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596605A (en) * | 2015-02-04 | 2015-05-06 | 江苏多维科技有限公司 | Magnetic automation flow recorder |
| WO2016124131A1 (en) * | 2015-02-04 | 2016-08-11 | 江苏多维科技有限公司 | Magnetic automation flow recorder |
| CN104596605B (en) * | 2015-02-04 | 2019-04-26 | 江苏多维科技有限公司 | A kind of magnetic automation flow recorder |
| US11636889B2 (en) | 2015-02-04 | 2023-04-25 | MultiDimension Technology Co., Ltd. | Automatic magnetic flow recording device |
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