CN101458777B - Electronic counting method of counter and the counter - Google Patents
Electronic counting method of counter and the counter Download PDFInfo
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- CN101458777B CN101458777B CN200710161145XA CN200710161145A CN101458777B CN 101458777 B CN101458777 B CN 101458777B CN 200710161145X A CN200710161145X A CN 200710161145XA CN 200710161145 A CN200710161145 A CN 200710161145A CN 101458777 B CN101458777 B CN 101458777B
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Abstract
The invention discloses an electronic counting method for counters and a counter therefore, wherein one character wheel of a mechanical counter is provided with an encoding structure to be a sampling character wheel; an electronic system reads codes via a corresponding provided sensor; divides the circumference of the sampling character wheel into at least two arc sections having different codes, compares the arc region sampled in this time with an arc region sampled in last time, and accumulates the number of the arc regions passed by the rotation of the sampling character wheel to be stored. The technical scheme is that: the electronic system realizes electronic counting and stores number via timely sampling, reading codes, judging counting and electronically storing, thus completely replacing prior pulse mechanical counters. The counter has the advantages of strong interference resistance, low measurement error, high reliability, low power consumption and long service life. Compared with direct read mechanical counters, the invention reduces manufacture cost significantly and obtains high performance price ratio.
Description
Technical field
The metering field that the present invention is applied to water meter, ammeter, gas meter and adopts traditional mechanical formula decade counter relates in particular to electronic counting method that is used for electromechanical counter and the counter that adopts this method.
Background technology
At present, the electronic counting method of electromechanical counter mainly contains two kinds:
A kind of is pulsed, promptly carry out pulse output metering by light, magnetic or resonant inducing mode etc. by the rotation number of turns to counter, revolution is moving to be exported a pulse or pulsegroup once circle and is handled by electronic system and added up and store, and realizes the metering of measuring instrument to its physical quantity that will measure with this.Adopt the separate counts storage respectively of machinery and electronics, dual metering, like this, though cost simple in structure is low, but there are two problems: one, because sensor is to produce pulse signal by the induction to light, magnetic or resonance to send electronic system to, so, pulse measurement is disturbed easily and is attacked, thus the accuracy of influence metering, and error in dipping can add up; Therefore two, pulse metering device must guarantee in the overall process of metering in running orderly all the time, can produce bigger power consumption, also is affected the serviceable life of related device simultaneously.
Another kind is a direct-reading, promptly, code-wheel matches with photoelectric sensor by being set on each character wheel, electronic system directly reads coded signal, coded signal can accurately be differentiated 10 system numbers of character wheel, so claim the direct-reading counter, the characteristics of this method are at ordinary times can be in standby under the passive states, and whenever read signal can carrying out at random.Adopt mechanical count and storage, and electronic system only directly reads the variable of mechanical count structure, like this, though do not exist error in dipping to be difficult for by external interference and attack yet, but because its structure is comparatively complicated, the photoelectric sensor quantity that adopts is more, thus its whole reliability and manufacturing cost aspect with regard to relative shortcoming, cost performance is relatively low.
Summary of the invention
In order to solve above-mentioned technical matters, the objective of the invention is to remedy at present existing existing in actual use defective of electromechanical counter or deficiency, provide a kind of high reliability, low cost, low-power consumption electromechanical counter electronic counting method and adopt the counter of this method.
To achieve the above object, the present invention has adopted following technical scheme:
A kind of electronic counting method of counter, coding structure is set as the sampling character wheel on a character wheel of mechanical counter, electronic system reads coding and the circumference area of sampling character wheel can be divided at least two sections circular arc zones with different coding by the sensor of relative set, and the job step of electronic system is as follows:
1) sample code, sensor is according to fixing sampling period sampling;
2) zone identification, electronic system identifies the pairing circular arc of sensor zone when this time sampling by sample code;
3) calculate storage, electronic system compares the pairing circular arc of this sampling sensor zone with the pairing circular arc of last sampling sensor zone, obtain the circular arc number of regions of sampling character wheel rotation process, to the rotation of sampling character wheel the total number L in circular arc zone of process add up and store;
4) repeat to sample next time.
As preferably, above-mentioned coding structure is the Gray code structure, the shortest time that the sampling period of described sensor is got back to same circular arc zone less than the rotation of sampling character wheel.Certainly, above-mentioned coding structure also can be non-Gray code structure, but the juncture area reading mistake that certainly exists for fear of non-Gray code structure, the sampling period of sensor should be less than the shortest time of sampling character wheel rotation through minimum circular arc zone, like this sampling period shorter, can produce big power consumption with respect to the Gray code structure.
The mentality of designing of the invention is: by a sampling character wheel is set, on the sampling character wheel, coding structure is set, make sampling character wheel circumference can be divided into a plurality of circular arcs zone, the all corresponding unique encoding in each circular arc zone, like this, as long as can promptly be determined the pairing circular arc regional location of sensor this moment by the unique identification of electronic system at the coding that enough short sampling period inner sensor scanning obtains; Just can rotate the number in the circular arc zone of process (perhaps occurring) by unique definite sampling character wheel by the circular arc regional location that double sampling obtained before and after relatively, to this number add up obtain sampling character wheel rotate the total number L in circular arc zone of process; Just can reach the purpose of electronics metering, electronics storage according to fixing sampling period repeated sampling, counting, storage.
Each circular arc zone is set as (size unequal) of non-five equilibrium, during then above-mentioned electronics metering output, be output as the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxThe round values of ratio, the measuring accuracy value of described electronic system is that described sampling character wheel revolves the physical quantity K that turns around and measured; Each circular arc zone is set as (equal and opposite in direction) of five equilibrium, during then above-mentioned electronics metering output, be output as the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxRatio, the measuring accuracy value of described electronic system is K/M
Max, wherein, K is that described sampling character wheel revolves the physical quantity that turns around and measured; The character wheel of will sampling is made as the direct-reading character wheel, electronics when output metering then, be output as the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxThe round values of ratio, add number that current state obtains the sampling character wheel direct-reading and ten ratio, the measuring accuracy value of described electronic system is K/10, wherein, K is that described sampling character wheel revolves the physical quantity that turns around and measured.
Adopt a kind of counter of said method, comprise that housing, print wheel shaft, several cylinders are printed on digital common character wheel, carry gear, also comprise a sampling character wheel, sampling character wheel and common character wheel transmission carry, described sampling character wheel is provided with coding structure, described housing is provided with and the corresponding sensor of coding structure, and sensor connects electronic system.
Like this, with respect to traditional impulse meter, sensor element of the present invention does not just need to be at any time in the duty, greatly reduce power consumption, and adopt that coding reads, recognition method, avoid traditional impulse meter to be disturbed easily and attacked the low problem of electronics metering reliability; Simultaneously,, reduced the usage quantity of sensor element, improved whole reliability, reduced manufacturing cost with respect to existing direct-reading counter.
Around here, coding structure on the above-mentioned sampling wheel can be to be middle coding structure and the read method of describing of patent documentation " mechanical rotary-type counter and electronic digitalizing read method thereof " of CN1147821C as publication number, but, still the code-disc structure that goes up use with existing direct reading calculator serves as preferred, be that described coding structure is to be arranged on the some annulus code channels that are used to distinguish sampling character wheel circular arc zone on the sampling character wheel end face, the annulus code channel is made of some dead bands that distribute alternately and non-dead band, described sampling character wheel both sides are equipped with the signal sampling plate, and described sensor is for being oppositely arranged on the two signal sampling plates, corresponding some with the annulus code channel to photoemission and receiving sensor.
Above-mentioned signal sampling plate is provided with 1 pair of sensor, and described sampling character wheel end face is provided with the annulus code channel one, and described annulus code channel is made of a saturating dead band and a non-dead band; Above-mentioned annulus code channel is made of a saturating dead band and a non-dead band of identical size.
Above-mentioned signal sampling plate is provided with 2 pairs of sensors, is provided with second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside, and between each above-mentioned annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+X, 180 °+X;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+Y, 270 °+Y;
Wherein, 0 °＜X, Y＜360 °.
As preferably, above-mentioned signal sampling plate is provided with 3 pairs of sensors, is provided with the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside; Between each above-mentioned annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 45 °+X, 135 °+X, 225 °+X, 315 °+X:
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+Y, 180 °+Y;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+Z, 270 °+Z;
Wherein, 0 °＜X, Y, Z＜360 °.
As preferably, above-mentioned signal sampling plate is provided with 4 pairs of sensors, is provided with the 4th, the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside; Between described each annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 36 °+X, 72 °+X, 108 °+X, 144 °+X, 216 °+X, 252 °+X, 288 °+X, 324 °+X;
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 54 °+Y, 126 °+Y, 234 °+Y, 306 °+Y;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+Z, 180 °+Z;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+U, 270 °+U;
Wherein, 0 °＜X, Y, Z, U＜360 °.
Equally, between each above-mentioned annulus code channel and the position between each sensor relation also can be as follows:
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 18 °+X, 72 °+X, 108 °+X, 162 °+X, 198 °+X, 252 °+X, 288 °+X, 342 °+X;
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 0 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 54 °+Y, 126 °+Y, 234 °+Y, 306 °+Y;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+Z, 180 °+Z;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+U, 270 °+U;
Wherein, 0 °＜X, Y, Z, U＜360 °.
As preferably, above-mentioned signal sampling plate is provided with 5 pairs of sensors, is provided with the 5th, the 4th, the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside; Between each above-mentioned annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 5th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 11.25 °+X, 33.75 °+X, 56.25 °+X, 78.75 °+X, 101.25 °+X, 123.75 °+X, 146.25 °+X, 168.75 °+X, 191.25 °+X, 213.75 °+X, 236.25 °+X, 258.75 °+X, 281.25 °+X, 303.75 °+X, 326.25 °+X, 348.75 °+X;
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 22.5 °+Y, 67.5 °+Y, 112.5 °+Y, 157.5 °+Y, 202.5 °+Y, 247.5 °+Y, 292.5 °+Y, 337.5 °+Y;
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 45 °+Z, 135 °+Z, 225 °+Z, 315 °+Z;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+U, 180 °+U;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+V, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+V, 270 °+V;
Wherein, 0 °＜X, Y, Z, U, V＜360 °.
Equally, between each above-mentioned annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 5th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 9 °+X, 30 °+X, 54 °+X, 78 °+X, 102 °+X, 126 °+X, 150 °+X, 171 °+X, 189 °+X, 210 °+X, 234 °+X, 258 °+X, 282 °+X, 306 °+X, 330 °+X, 351 °+X;
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 18 °+Y, 66 °+Y, 114 °+Y, 162 °+Y, 198 °+Y, 246 °+Y, 294 °+Y, 342 °+Y;
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 42 °+Z, 138 °+Z, 222 °+Z, 318 °+Z:
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+U, 180 °+U;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+V, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+V, 270 °+V;
Wherein, 0 °＜X, Y, Z, U, V＜360 °.
As preferably, above-mentioned sampling character wheel end face is provided with the annulus code channel one, described annulus code channel is made of size identical a saturating dead band and a non-dead band, and described signal sampling plate is provided with 5 pairs and this annulus code channel corresponding sensor, 36 ° of angles in interval between the adjacent sensors.
In technique scheme, have following equivalent structure:
The first above-mentioned annulus code channel is merged into the annulus code channel with the second annulus code channel, to the position angle of two pairs of sensors on the signal sampling plate that should the annulus code channel is 0 °+U, 90 °+U, the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+U, 180 °+U, wherein, 0 °＜U＜360 °, can reduce the manufacture craft difficulty like this or dwindle the volume of counter;
Can be provided with annulus between above-mentioned some annulus code channels at interval, yet, annulus also can be set at interval in order to reduce the manufacture craft difficulty, adjacent saturating dead band partly is interconnected;
Saturating sky on the above-mentioned annulus code channel and the exchange of non-dead band, and on above-mentioned arbitrary annulus code channel and the signal sampling plate with it the position of corresponding sensor rotate identical angle with respect to adjacent code channel simultaneously with sensor, be the equivalent structure of technique scheme.
As preferably, above-mentioned signal sampling plate is substrate with the pcb board, directly is packaged with the sensor chip nude film on the pcb board, is provided with the plastics housing of optically focused around the sensor chip nude film, and described signal sampling plate is connected on the housing by inserting mode.
The present invention is owing to adopted above technical scheme, thereby electronic system by timing sampling, read the purpose that mode that coding, electronics calculate storage reaches electronic counting and storage, can substitute existing pulsed electromechanical counter fully, and have that antijamming capability is strong, error in dipping is little, advantage such as good reliability, power consumption are little, long service life, with respect to the direct-reading electromechanical counter, the invention greatly reduces manufacturing cost, has high cost performance.
Description of drawings
Fig. 1 is an electronic counting method schematic diagram of the present invention.
Fig. 2 is the process flow diagram of the embodiment of the invention 1.
Fig. 3 is the process flow diagram of the embodiment of the invention 2.
Fig. 4 is the structural representation of counter of the present invention.
Fig. 5 is that the A of Fig. 4 is to structural representation.
Fig. 6 is the coding structure synoptic diagram of the embodiment of the invention 3.
Fig. 7 is the coding structure synoptic diagram of the embodiment of the invention 4.
Fig. 8 is the coding structure synoptic diagram of the embodiment of the invention 5.
Fig. 9 is the coding structure synoptic diagram of the embodiment of the invention 6.
Figure 10 is the coding structure synoptic diagram of the embodiment of the invention 7.
Figure 11 is the coding structure synoptic diagram of the embodiment of the invention 8.
Figure 12 is the coding structure synoptic diagram of the embodiment of the invention 9.
Figure 13 is the coding structure synoptic diagram of the embodiment of the invention 10.
Figure 14 is the coding structure synoptic diagram of the embodiment of the invention 11.
Figure 15 is the coding structure synoptic diagram of the embodiment of the invention 12.
Figure 16 is the coding structure synoptic diagram of the embodiment of the invention 13.
Figure 17 is the coding structure synoptic diagram of the embodiment of the invention 14.
Figure 18 is the coding structure synoptic diagram of the embodiment of the invention 15.
Figure 19 is the coding structure synoptic diagram of the embodiment of the invention 16.
Figure 20 is the coding structure synoptic diagram of the embodiment of the invention 17.
Embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is made a detailed explanation.
Embodiment 1:
The electronic counting method of a kind of counter as shown in Figure 1 is provided with coding structure as the sampling character wheel on a character wheel of electromechanical counter, electronic system reads coding and the circumference area of sampling character wheel can be divided into M by the sensor of relative set
MaxSection has circular arc different coding, non-five equilibrium zone, and the job step of electronic system is as follows:
1) sample code, sensor is according to fixing sampling period sampling;
2) zone identification, electronic system identifies the pairing circular arc of sensor zone when this time sampling by sample code;
3) calculate storage, electronic system compares the pairing circular arc of this sampling sensor zone with the pairing circular arc of last sampling sensor zone, obtain the circular arc number of regions of sampling character wheel rotation process, the rotation of sampling character wheel the total number L in circular arc zone of process add up and store;
4) repeat to sample next time.
In the present embodiment, above-mentioned coding structure is the Gray code structure, the shortest time that the sampling period of described sensor is got back to same circular arc zone less than the rotation of sampling character wheel.
The workflow of electronic system as shown in Figure 2, above-mentioned electronic system carry digit is changed to initially to be given the serial number in every section circular arc zone successively (during promptly according to the rotation of sampling character wheel, each of Chu Xianing section circular arc zone is defined as " 1～M successively successively
Max"); Electronic system control sensor obtains coding according to fixing sampling period sampling, and electronic system identifies the serial number M in this section circular arc zone on the pairing sampling character wheel of present sensor by contrast codimg logic table (setting in advance)
i, above-mentioned steps 3) and when calculating storage, with the serial number M in this circular arc of living in zone of sampling
iWith the sample serial number M in circular arc of living in zone of last time
0Asking difference, is that 0 explanation sampling character wheel does not rotate as difference, directly returns and continues next sampling circulation; Several circular arc zones of process (perhaps occurring) have been rotated as difference greater than 0 explanation sampling character wheel, but also there is not to produce the circular arc zone of carry through (perhaps occurring), to the sampling character wheel the number in circular arc zone of process count storage, i.e. L=L+ Δ L, Δ L=M
i-M
0, M
0=M
i, return again and continue next sampling circulation; Several circular arc zones of process (perhaps occurring) have been rotated as difference less than 0 explanation sampling character wheel, and pass through the circular arc zone that (perhaps occurring) produces carry, to the sampling character wheel the number in circular arc zone of process count storage, electrometer numerical value L=L+ Δ L, Δ L=M
Max+ M
i-M
0, M
0=M
i, return again and continue next sampling circulation.Electronics when output metering, be output as the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxThe round values of ratio, promptly output valve is W=K * [L/M
Max], wherein, K revolves the physical quantity that turns around and measured for the sampling character wheel, L for the sampling character wheel rotate the total number in circular arc zone of process, its measuring accuracy is K.
In addition, when the coding of sampling character wheel can directly be differentiated the 10 systems numeral of sampling character wheel (character wheel of sampling is the direct-reading character wheel), can on above-mentioned number of turns electronics measurement basis, add up-sampling character wheel direct-reading number, thereby reach the purpose that improves precision, that is, its output valve can be W=K * [L/M
Max]+K/10 * A, wherein, A is for 10 system direct-reading numbers of sampling character wheel, this moment, the measuring accuracy of system was K/10.
Embodiment 2:
As the electronic counting method of Fig. 1, a kind of counter shown in Figure 3, be with the difference of embodiment 1: the circumference of above-mentioned sampling character wheel is divided into M
MaxThe circular arc zone of section five equilibrium; Electronics when output metering then, output both can by the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxRatio, promptly output valve is W=K * L/M
Max, wherein, K revolves the physical quantity that turns around and measured for the sampling character wheel, L for the sampling character wheel rotate the total number in circular arc zone of process, its measuring accuracy is K/M
MaxOutput also can by sampling character wheel rotation total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxThe round values of ratio, promptly output valve is W=K * [L/M
Max], wherein, K revolves the physical quantity that turns around and measured for the sampling character wheel, L for the sampling character wheel rotate the total number in circular arc zone of process, its measuring accuracy is K.Other are provided with embodiment 1.
Embodiment 3:
A kind of counter as Fig. 4, employing said method shown in Figure 5, comprise that housing 7, print wheel shaft 1, several cylinders are printed on digital common character wheel 2, carry gear 9, carry gear shaft 8, also comprise a sampling character wheel 5, sampling character wheel 5 passes through moving tooth 3 mechanical drive carries with common character wheel 2, described sampling character wheel 5 is provided with coding structure, described housing 7 is provided with and the corresponding sensor 4 of coding structure, and sensor 4 connects electronic system; Above-mentioned coding structure is to be arranged on the some annulus code channels 51 that are used to distinguish sampling character wheel circular arc zone on sampling character wheel 5 end faces, annulus code channel 51 is made of some dead bands that distribute alternately and non-dead band, above-mentioned sampling character wheel 5 both sides are equipped with signal sampling plate 6, described sensor 4 for be oppositely arranged on the two signal sampling plates 6, corresponding some with annulus code channel 51 to photoemission and receiving sensor 4.Above-mentioned signal sampling plate 6 is substrate with the pcb board, directly is packaged with the sensor chip nude film on the pcb board, is provided with the plastics housing of optically focused around the sensor chip nude film, and described signal sampling plate is connected on the housing by inserting mode.
As shown in Figure 6, in the present embodiment, above-mentioned signal sampling plate is provided with 1 pair of sensor, and described sampling character wheel end face is provided with the annulus code channel one, and described annulus code channel is made of a saturating dead band and a non-dead band of identical size.Like this, sampling character wheel circumference area can be divided into " 0 ", " 1 " two pairing two sections circular arc zones of coding, can adopt the electronic counting method described in embodiment 1 or 2, then M
Max=2.
Embodiment 4:
A kind of counter as shown in Figure 7, above-mentioned signal sampling plate is provided with 2 pairs of sensors, is provided with second, the first concentric annulus code channel on the above-mentioned sampling character wheel end face from outside to inside, is provided with annulus interval 52 between two code channels; The position relation of described each annulus code channel and corresponding sensor is as follows:
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 0 °, 180 °;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 90 °, 270 °.
Like this, sampling character wheel circumference equal portions can be divided into 4 the pairing four arcs of coding zones, adopt the electronic counting method described in the embodiment 1 or 2, then M
Max=4.Other are with embodiment 3.
Embodiment 5:
A kind of counter as shown in Figure 8, above-mentioned signal sampling plate is provided with 2 pairs of sensors, with only be provided with annulus code channel together on the different character wheel end faces that are to sample of embodiment 4, described annulus code channel is made of a saturating dead band and a non-dead band of identical size, and the 2 pairs of sensors are all to should the annulus code channel and be 90 ° of angles.Other logical embodiment 4.
Embodiment 6:
A kind of counter as shown in Figure 9, above-mentioned signal sampling plate is provided with 3 pairs of sensors, is provided with the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside, is provided with annulus between each annulus code channel at interval; The position relation of described each annulus code channel and corresponding sensor is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 45 °, 135 °, 225 °, 315 °;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 0 °, 180 °;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 90 °, 270 °.
Like this, sampling character wheel circumference equal portions can be divided into 8 pairing eight sections circular arc zones of coding, adopt the electronic counting method described in the embodiment 1 or 2, then M
Max=8.Other are with embodiment 3.
Embodiment 7:
A kind of counter as shown in figure 10, above-mentioned signal sampling plate is provided with 3 pairs of sensors, only be with the different of embodiment 6: the first annulus code channel is merged into the annulus code channel with the second annulus code channel, the position angle of two pairs of sensors on the signal sampling plate that should the annulus code channel is made as 0 °, 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 0 °, 180 °.Other are with embodiment 6.
Embodiment 8:
A kind of counter as shown in figure 11, above-mentioned signal sampling plate is provided with 3 pairs of sensors, only is with the different of embodiment 7: be not provided with annulus between each code channel at interval, thereby make the saturating dead band of each code channel partly be interconnected.Other are with embodiment 7.
Embodiment 9:
A kind of counter as shown in figure 12, above-mentioned signal sampling plate is provided with 4 pairs of sensors, be provided with the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside, do not establish annulus between each code channel at interval, thereby make the saturating dead band of each code channel partly be interconnected, to 2 pairs of sensors that are 90 ° of angles should be arranged, the position relation of described each annulus code channel and corresponding sensor is as follows on the above-mentioned first annulus code channel:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 36 °, 72 °, 108 °, 144 °, 216 °, 252 °, 288 °, 324 °;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 54 °, 126 °, 234 °, 306 °;
The position angle of 2 pairs of sensors on the signal sampling plate of the corresponding first annulus code channel is made as 0 °, 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 0 °, 180 °;
Like this, the non-equal portions of sampling character wheel circumference can be divided into 16 pairing 16 sections circular arc zones of coding, and the coding of sampling character wheel can directly be differentiated 10 system numbers of character wheel, adopt the electronic counting method among the embodiment 1, then its measuring accuracy can be K or K/10 (the meter number of turns adds direct-reading).Other are with embodiment 3.
Embodiment 10:
A kind of counter as shown in figure 13, above-mentioned signal sampling plate is provided with 4 pairs of sensors, only is with the different of embodiment 9:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 18 °, 72 °, 108 °, 162 °, 198 °, 252 °, 288 °, 342 °;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is made as 0 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 54 °, 126 °, 234 °, 306 °; Other are with embodiment 9.
Embodiment 11:
A kind of counter as shown in figure 14, above-mentioned signal sampling plate is provided with 5 pairs of sensors, is provided with the 5th, the 4th, the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside, is provided with annulus between each code channel at interval; The position relation of described each annulus code channel and corresponding sensor is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 5th annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 11.25 °, 33.75 °, 56.25 °, 78.75 °, 101.25 °, 123.75 °, 146.25 °, 168.75 °, 191.25 °, 213.75 °, 236.25 °, 258.75 °, 281.25 °, 303.75 °, 326.25 °, 348.75 °;
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 22.5 °, 67.5 °, 112.5 °, 157.5 °, 202.5 °, 247.5 °, 292.5 °, 337.5 °;
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 45 °, 135 °, 225 °, 315 °;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 0 °, 180 °;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 90 °, 270 °.
Like this, the non-equal portions of sampling character wheel circumference can be divided into 32 pairing 32 sections circular arc zones of coding, and the coding of sampling character wheel can directly be differentiated 10 system numbers of character wheel, adopts the electronic counting method among the embodiment 1, and then its measuring accuracy can be K or K/10 (the meter number of turns adds direct-reading).Other are with embodiment 3.
Embodiment 12:
A kind of counter as shown in figure 15, above-mentioned signal sampling plate is provided with 5 pairs of sensors, only be with the different of embodiment 11: the first annulus code channel is merged into the annulus code channel with the second annulus code channel, the position angle of two pairs of sensors on the signal sampling plate that should the annulus code channel is made as 0 °, 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 0 °, 180 °.Other are with embodiment 11.
Embodiment 13:
A kind of counter as shown in figure 16, above-mentioned signal sampling plate is provided with 5 pairs of sensors, only is with the different of embodiment 12: be not provided with annulus between each code channel at interval, thereby make the saturating dead band of each code channel partly be interconnected.Other are with embodiment 12.
Embodiment 14:
A kind of counter as shown in figure 17, above-mentioned signal sampling plate is provided with 5 pairs of sensors, is with the different of embodiment 11:
The position angle of sensor on the signal sampling plate of corresponding the 5th annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 9 °, 30 °, 54 °, 78 °, 102 °, 126 °, 150 °, 171 °, 189 °, 210 °, 234 °, 258 °, 282 °, 306 °, 330 °, 351 °;
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 18 °, 66 °, 114 °, 162 °, 198 °, 246 °, 294 °, 342 °;
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is made as 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 42 °, 138 °, 222 °, 318 °; Other are with embodiment 11.
Embodiment 15:
A kind of counter as shown in figure 18, above-mentioned signal sampling plate is provided with 5 pairs of sensors, only be with the different of embodiment 14: the first annulus code channel is merged into the annulus code channel with the second annulus code channel, the position angle of two pairs of sensors on the signal sampling plate that should the annulus code channel is made as 0 °, 90 °, and the marginal angle of saturating dead band and non-dead band is respectively on then corresponding with it this code channel: 0 °, 180 °.Other are with embodiment 14.
Embodiment 16:
A kind of counter as shown in figure 19, above-mentioned signal sampling plate is provided with 5 pairs of sensors, only is with the different of embodiment 15: be not provided with annulus between each code channel at interval, thereby make the saturating dead band of each code channel partly be interconnected.Other are with embodiment 15.
Embodiment 17:
A kind of counter as shown in figure 20, above-mentioned sampling character wheel end face is provided with the annulus code channel one, described annulus code channel is made of size identical a saturating dead band and a non-dead band, described signal sampling plate is provided with 5 pairs and this annulus code channel corresponding sensor, 36 ° of angles in interval between the adjacent sensors, character wheel circumference 10 five equilibriums of will sampling like this, the regional location of every five equilibrium has unique encoding.
Like this, sampling character wheel circumference equal portions can be divided into 10 pairing 10 sections circular arc zones of coding, and the coding of sampling character wheel can directly be differentiated 10 system numbers of character wheel, adopts the electronic counting method among the embodiment 1, and then its measuring accuracy can be K or K/10 (the meter number of turns adds direct-reading).Also can adopt the electronic counting method of embodiment 2.Other are with embodiment 3.
In the above embodiments; saturating sky on the sampling character wheel 7 on arbitrary annulus code channel and non-dead band exchange or with signal sampling plate 5 on corresponding sensor rotate identical angle simultaneously; can have between each annulus code channel at interval; also can be not at interval; between with each annulus code channel, cancel at interval; saturating dead band and non-dead band close on the adjacent annulus code channel can interconnect; do not influence the result of implementation of the foregoing description; all can be considered as equivalent structure of the present utility model, fall within the protection domain of the present utility model.
Claims (25)
1. the electronic counting method of a counter, it is characterized in that, coding structure is set as the sampling character wheel on a character wheel of mechanical counter, electronic system reads coding and the circumference area of sampling character wheel can be divided at least two sections circular arc zones with different coding by the sensor of relative set, and the job step of electronic system is as follows:
1) sample code, sensor is according to fixing sampling period sampling;
2) zone identification, electronic system identifies the pairing circular arc of sensor zone when this time sampling by sample code;
3) calculate storage, electronic system compares the pairing circular arc of this sampling sensor zone with the pairing circular arc of last sampling sensor zone, obtain the circular arc number of regions of sampling character wheel rotation process, to the rotation of sampling character wheel the total number L in circular arc zone of process add up and store;
4) repeat to sample next time.
2. the electronic counting method of a kind of counter according to claim 1 is characterized in that, described coding structure is the Gray code structure, the shortest time that the sampling period of described sensor is got back to same circular arc zone less than the rotation of sampling character wheel.
3. the electronic counting method of a kind of counter according to claim 1 is characterized in that, described coding structure is non-Gray code structure, and the sampling period of described sensor is less than the shortest time of sampling character wheel rotation through minimum circular arc zone.
4. according to the electronic counting method of claim 2 or 3 described a kind of counters, it is characterized in that, during described electronics metering output, be output as the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxThe round values of ratio, the measuring accuracy value of described electronic system is that described sampling character wheel revolves the physical quantity K that turns around and measured.
5. according to the electronic counting method of claim 2 or 3 described a kind of counters, it is characterized in that, described each circular arc area size equates, during described electronics metering output, be output as the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxRatio, the measuring accuracy value of described electronic system is K/M
Max, wherein, K is that described sampling character wheel revolves the physical quantity that turns around and measured.
6. according to the electronic counting method of claim 2 or 3 described a kind of counters, it is characterized in that, described sampling character wheel is the direct-reading character wheel, during described electronics metering output, be output as the rotation of sampling character wheel total number L and the sampling character wheel in circular arc zone of process revolve turn around the number M in circular arc zone of process
MaxThe round values of ratio, add number that current state obtains the sampling character wheel direct-reading and ten ratio, the measuring accuracy value of described electronic system is K/10, wherein, K is that described sampling character wheel revolves the physical quantity that turns around and measured.
7. adopt a kind of counter of the described method of claim 1, comprise that housing (7), print wheel shaft (1), several cylinders are printed on digital common character wheel (2), carry gear (9), it is characterized in that, also comprise a sampling character wheel (5), sampling character wheel (5) and common character wheel (2) transmission carry, described sampling character wheel (5) is provided with coding structure, and described housing (7) is provided with and the corresponding sensor of coding structure (4), and sensor (4) connects electronic system.
8. a kind of counter according to claim 7, it is characterized in that, described coding structure is for being arranged on the some annulus code channels (51) that are used to distinguish sampling character wheel circular arc zone on sampling character wheel (5) end face, annulus code channel (51) is made of some dead bands that distribute alternately and non-dead band, described sampling character wheel (5) both sides are equipped with signal sampling plate (6), and described sensor (4) is last, corresponding some to photoemission and receiving sensor (4) with annulus code channel (51) for being oppositely arranged on two signal sampling plates (6).
9. a kind of counter according to claim 8 is characterized in that, described signal sampling plate is provided with 1 pair of sensor, and described sampling character wheel end face is provided with the annulus code channel one, and described annulus code channel is made of a saturating dead band and a non-dead band.
10. a kind of counter according to claim 9 is characterized in that, described annulus code channel is made of a saturating dead band and a non-dead band of identical size.
11. a kind of counter according to claim 8 is characterized in that, described signal sampling plate is provided with 2 pairs of sensors, is provided with second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside.
12. a kind of counter according to claim 11 is characterized in that, between described each annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+X, 180 °+X; The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+Y, 270 °+Y; Wherein, 0 °＜X, Y＜360 °.
13. a kind of counter according to claim 8 is characterized in that, described signal sampling plate is provided with 3 pairs of sensors, is provided with the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside.
14. a kind of counter according to claim 13 is characterized in that, between described each annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 45 °+X, 135 °+X, 225 °+X, 315 °+X;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+Y, 180 °+Y;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+Z, 270 °+Z; Wherein, 0 °＜X, Y, Z＜360 °.
15. a kind of counter according to claim 8 is characterized in that, described signal sampling plate is provided with 4 pairs of sensors, is provided with the 4th, the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside.
16. a kind of counter according to claim 15 is characterized in that, between described each annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 36 °+X, 72 °+X, 108 °+X, 144 °+X, 216 °+X, 252 °+X, 288 °+X, 324 °+X:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 54 °+Y, 126 °+Y, 234 °+Y, 306 °+Y:
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+Z, 180 °+Z; The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+U, 270 °+U; Wherein, 0 °＜X, Y, Z, U＜360 °.
17. a kind of counter according to claim 15 is characterized in that, between described each annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 18 °+X, 72 °+X, 108 °+X, 162 °+X, 198 °+X, 252 °+X, 288 °+X, 342 °+X:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 0 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 54 °+Y, 126 °+Y, 234 °+Y, 306 °+Y;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+Z, 180 °+Z; The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+U, 270 °+U; Wherein, 0 °＜X, Y, Z, U＜360 °.
18. a kind of counter according to claim 8 is characterized in that, described signal sampling plate is provided with 5 pairs of sensors, is provided with the 5th, the 4th, the 3rd, second, the first concentric annulus code channel on the described sampling character wheel end face from outside to inside.
19. a kind of counter according to claim 18 is characterized in that, between described each annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 5th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 11.25 °+X, 33.75 °+X, 56.25 °+X, 78.75 °+X, 101.25 °+X, 123.75 °+X, 146.25 °+X, 168.75 °+X, 191.25 °+X, 213.75 °+X, 236.25 °+X, 258.75 °+X, 281.25 °+X, 303.75 °+X, 326.25 °+X, 348.75 °+X;
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 22.5 °+Y, 67.5 °+Y, 112.5 °+Y, 157.5 °+Y, 202.5 °+Y, 247.5 °+Y, 292.5 °+Y, 337.5 °+Y:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 45 °+Z, 135 °+Z, 225 °+Z, 315 °+Z;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+U, 180 °+U; The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+V, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+V, 270 °+V; Wherein, 0 °＜X, Y, Z, U, V＜360 °.
20. a kind of counter according to claim 18 is characterized in that, between described each annulus code channel and the position between each sensor relation is as follows:
The position angle of sensor on the signal sampling plate of corresponding the 5th annulus code channel is 90 °+X, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 9 °+X, 30 °+X, 54 °+X, 78 °+X, 102 °+X, 126 °+X, 150 °+X, 171 °+X, 189 °+X, 210 °+X, 234 °+X, 258 °+X, 282 °+X, 306 °+X, 330 °+X, 351 °+X;
The position angle of sensor on the signal sampling plate of corresponding the 4th annulus code channel is 90 °+Y, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 18 °+Y, 66 °+Y, 114 °+Y, 162 °+Y, 198 °+Y, 246 °+Y, 294 °+Y, 342 °+Y:
The position angle of sensor on the signal sampling plate of corresponding the 3rd annulus code channel is 90 °+Z, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 42 °+Z, 138 °+Z, 222 °+Z, 318 °+Z;
The position angle of sensor on the signal sampling plate of the corresponding second annulus code channel is 90 °+U, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+U, 180 °+U;
The position angle of sensor on the signal sampling plate of the corresponding first annulus code channel is 90 °+V, and the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 90 °+V, 270 °+V; Wherein, 0 °＜X, Y, Z, U, V＜360 °.
21. a kind of counter according to claim 8, it is characterized in that, described sampling character wheel end face is provided with the annulus code channel one, described annulus code channel is made of size identical a saturating dead band and a non-dead band, described signal sampling plate is provided with 5 pairs and this annulus code channel corresponding sensor, 36 ° of angles in interval between the adjacent sensors.
22. according to claim 12 or 14 or 16 or 17 or 19 or 20 described a kind of counters, it is characterized in that, the described first annulus code channel is merged into the annulus code channel with the second annulus code channel, to the position angle of two pairs of sensors on the signal sampling plate that should the annulus code channel is 0 °+U, 90 °+U, the marginal angle of saturating dead band and non-dead band is respectively on corresponding with it this code channel: 0 °+U, 180 °+U, wherein, 0 °＜U＜360 °.
23. according to each described a kind of counter in the claim 11 to 20, it is characterized in that, be provided with annulus (52) at interval between described some annulus code channels (51).
24., it is characterized in that saturating dead band adjacent between described some annulus code channels (51) partly is interconnected according to each described a kind of counter in the claim 11 to 20.
25. each described a kind of counter in 21 according to Claim 8, it is characterized in that, described signal sampling plate (6) is substrate with the pcb board, directly be packaged with the sensor chip nude film on the pcb board, be provided with the plastics housing of optically focused around the sensor chip nude film, described signal sampling plate is connected on the housing by inserting mode.
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| CN111753672B (en) * | 2020-06-03 | 2023-10-03 | 宁波傲视智绘光电科技有限公司 | Method for counting number of targets to be measured and related device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394266Y (en) * | 1999-01-12 | 2000-08-30 | 王振兴 | Electromechanic accounting coder |
| CN1363912A (en) * | 2001-07-18 | 2002-08-14 | 华立集团股份有限公司 | A/D conversion intermediate code for preventing error reading of value indicated by mechanical multi-digit decimal counter and its converter |
| CN2891103Y (en) * | 2006-04-11 | 2007-04-18 | 孙海城 | Electromechanical absolute cyclic encoding counter |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2394266Y (en) * | 1999-01-12 | 2000-08-30 | 王振兴 | Electromechanic accounting coder |
| CN1363912A (en) * | 2001-07-18 | 2002-08-14 | 华立集团股份有限公司 | A/D conversion intermediate code for preventing error reading of value indicated by mechanical multi-digit decimal counter and its converter |
| CN2891103Y (en) * | 2006-04-11 | 2007-04-18 | 孙海城 | Electromechanical absolute cyclic encoding counter |
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