CN112406318B - Ink quantity detection device and method based on inductance technology and ink-jet printer - Google Patents
Ink quantity detection device and method based on inductance technology and ink-jet printer Download PDFInfo
- Publication number
- CN112406318B CN112406318B CN202011327149.2A CN202011327149A CN112406318B CN 112406318 B CN112406318 B CN 112406318B CN 202011327149 A CN202011327149 A CN 202011327149A CN 112406318 B CN112406318 B CN 112406318B
- Authority
- CN
- China
- Prior art keywords
- inductance
- ink
- digital converter
- controller
- coil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17566—Ink level or ink residue control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/17—Ink jet characterised by ink handling
- B41J2/175—Ink supply systems ; Circuit parts therefor
- B41J2/17566—Ink level or ink residue control
- B41J2002/17586—Ink level or ink residue control using ink bag deformation for ink level indication
Abstract
The invention discloses an ink quantity detection device and method based on inductance technology and an ink-jet printer, wherein the ink quantity detection device comprises: the device comprises a controller, an inductance digital converter, an LC oscillating circuit and a metal induction magnet arranged on an ink bag, wherein the controller is in communication connection with the inductance digital converter, and the inductance digital converter is electrically connected with the LC oscillating circuit; the inductance coil in the LC oscillating circuit is used for inducing the inductance coil and the metal inductance magnet mutually; the inductance-digital converter is used for converting inductance coil induction variation into digital quantity and transmitting the digital quantity to the controller; the controller is used for driving the LC oscillating circuit to work through the inductance digital converter. The invention realizes the detection of the ink quantity by utilizing the electric vortex principle, and has the characteristics of high reliability, good stability, high precision, high sensitivity resolution, high response speed and strong anti-interference capability.
Description
Technical Field
The invention belongs to the technical field of ink-jet printing, and particularly relates to an ink quantity detection device and method based on an inductance technology and an ink-jet printer.
Background
Because of the high cost and low ink capacity of conventional replaceable ink cartridges, consumers are desirous of getting rid of this constraint, and in such large environments, continuous ink supply technology has rapidly evolved, continuous large ink supply printing devices have gradually become at the very corner of the consumer market. The continuous high-capacity ink supply system utilizes an external high-capacity ink box to enable a user to fill ink repeatedly, and then the ink is conveyed to the internal ink box through a drain pipe. The size of the built-in ink box is similar to that of the traditional replaceable ink box, and in order to achieve the purpose of continuous ink supply printing, when the ink quantity of the built-in ink box is insufficient, the external ink box automatically supplies ink to the built-in ink box. To achieve this, ink level detection is particularly important.
Currently, the ink amount detection technology of an inkjet printer mainly uses a light-sensitive sensor, and the detection device generally includes an illumination source that emits near infrared light, an ink container containing a light-absorbing substance, and a photosensor for receiving a light amount signal transmitted through a cavity of the ink container. When the container is filled with a metered amount of ink, the emitted light cannot penetrate the container or absorb light energy to produce a reflection. When the ink in the container is below the light sensor position, the emitted light penetrates the container or emits light onto the light receiving sensor. The device can judge the ink capacity and state in the container by the above conditions. The design of the detection device has the defects that the material of the ink container needs to be specific, the ink container can be penetrated by light, the price of the light emitter and the receiver is high, and the like.
Disclosure of Invention
In order to solve the technical problems, the invention provides an ink quantity detection device and method based on an inductance technology and an inkjet printer.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
in one aspect, the invention discloses an ink volume detection device based on inductance technology, comprising:
a metal magnet mounted on the ink bag;
the inductance coil in the LC oscillation circuit is used for inducing the inductance coil and the metal induction magnet mutually;
the inductance digital converter is electrically connected with the LC oscillating circuit and is used for driving the LC oscillating circuit to generate an alternating electromagnetic field, converting data quantity generated by the change of the distance between the inductance coil and the metal induction magnet into digital quantity and transmitting the digital quantity to the controller;
and the controller is in communication connection with the inductance digital converter and is used for controlling the inductance digital converter to work.
The invention relates to an ink quantity detection device based on an inductance technology, which comprises: the device comprises a controller, an inductance-digital converter, an LC oscillating circuit and a metal induction magnet arranged on an ink bag, wherein the detection of the ink quantity is realized by utilizing an eddy current principle, and the device has the characteristics of high reliability, good stability and high precision, and is high in sensitivity resolution, high in response speed and strong in anti-interference capability.
On the basis of the technical scheme, the following improvement can be made:
preferably, the LC oscillating circuit is electrically connected with the inductance-to-digital converter through a USB interface circuit.
With the above preferred solution, the inductance-to-digital converter directly powers the LC tank circuit.
As a preferable scheme, the LC oscillating circuit is electrically connected with the inductance-digital converter through the USB interface circuit and the filter circuit in sequence.
By adopting the preferable scheme, the possibility that the signal transmission is interfered by the outside is reduced, and the stability of the signal transmission is maintained.
Preferably, the controller is electrically connected with the inductance-to-digital converter through the IIC expansion chip.
By adopting the preferable scheme, the communication distance between the controller and the inductance digital converter can be prolonged by adopting the IIC expansion chip.
Preferably, the clock pin of the inductance-digital converter is electrically connected with an external crystal oscillator.
By adopting the preferable scheme, the working clock frequency of the chip is increased, and the sensitivity of detecting the ink quantity change is improved.
As a preferred solution, the inductance-to-digital converter uses an LDC1612 chip.
By adopting the above preferred scheme and adopting the LDC1612 chip, the sensor has the advantages of small and simple structure, wide working environment temperature range, good stability, high repeated positioning precision, low cost and easiness in realization of batch production.
As a preferred solution, the controller employs an S5P4418 chip.
By adopting the preferable scheme, the hardware circuit has simple structure, lower system power consumption and lower realization cost.
Preferably, the inductance coil is a planar coil plate mounted on the ink cartridge cover plate.
By adopting the preferable scheme, the installation is convenient and fast, and other brackets are not required to be additionally arranged to fix the inductance coil.
On the other hand, the invention also discloses an ink quantity detection method, which uses any one of the ink quantity detection devices to detect, and specifically comprises the following steps:
1) After the power-on is stable, the controller controls the communication with the inductance-digital converter, controls the LC oscillating circuit to work and outputs an alternating electromagnetic field;
2) When the ink quantity in the ink box is reduced, the ink bag is shrunken, and the distance between the metal induction magnet on the ink bag and the inductance coil in the LC oscillating circuit is changed;
3) The inductance-digital converter converts the sensed change of the distance between the metal induction magnet and the induction coil into digital quantity and transmits the digital quantity to the controller;
4) The controller judges the change in the ink amount based on the obtained digital amount.
In addition, the invention also discloses an ink jet printer which comprises any one of the ink quantity detection devices or performs ink quantity detection by using the ink quantity detection method.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a circuit block diagram of an ink amount detecting apparatus provided in an embodiment of the present invention.
Fig. 2 is a schematic diagram of detection of an ink amount detection device according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of an ink amount detecting device according to an embodiment of the present invention.
Fig. 4 is a circuit diagram of an external crystal oscillator according to an embodiment of the present invention.
Wherein: the device comprises a 1-metal induction magnet, a 2-LC oscillating circuit, a 21-inductance coil, a 3-inductance digital converter, a 4-controller, a 5-USB interface circuit, a 6-filter circuit, a 7-IIC expansion chip and an 8-external crystal oscillator.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The expression "comprising" an element is an "open" expression which merely means that the corresponding component is present and should not be interpreted as excluding additional components.
In order to achieve the object of the present invention, in some embodiments of an ink amount detection device, method and inkjet printer based on inductance technology, as shown in fig. 1, the ink amount detection device includes:
a metal magnet 1 mounted on the ink bag;
an LC oscillating circuit 2 in which an inductance coil 21 is used to induce the metal inductive body 1 to each other;
the inductance digital converter 3 is electrically connected with the LC oscillating circuit 2, the inductance digital converter 3 is used for driving the LC oscillating circuit 2 to generate an alternating electromagnetic field, and the data quantity generated by the change of the distance between the inductance coil 21 and the metal induction magnet 1 is converted into a digital quantity and is sent to the controller 4;
and the controller 4 is in communication connection with the inductance digital converter 3, and the controller 4 is used for controlling the inductance digital converter 3 to work.
The invention relates to an ink quantity detection device based on an inductance technology, which comprises: the ink bag comprises a controller 4, an inductance digital converter 3, an LC oscillating circuit 2 and a metal induction magnet 1 arranged on the ink bag, wherein the controller 4 is in communication connection with the inductance digital converter 3, and the inductance digital converter 3 is electrically connected with the LC oscillating circuit 2;
the inductance coil 21 in the LC oscillating circuit is used for inducing the metal inductance magnet 1 mutually; the inductance-to-digital converter 3 is used for converting the inductance coil 21 induction variation into digital quantity and sending the digital quantity to the controller 4; the controller 4 is used for driving the LC oscillating circuit 2 to operate through the inductance-to-digital converter 3.
The invention is mainly applied to the working principle of an inductive proximity sensor, as shown in fig. 2.
When an alternating voltage U1 is applied across the inductor 21, an alternating current I1 is generated to flow through the coil, generating an alternating magnetic field H1. When the detected metal induction magnet 1 approaches the induction coil 21, according to the electromagnetic induction principle, an eddy current I2 is generated in the metal induction magnet 1, and a counter magnetic field H2 is generated to cancel the portion H1.
When the ink quantity in the ink box is reduced, the ink bag is shrunken, the distance X between the metal induction magnet 1 on the ink bag and the induction coil 21 is changed, and the induction impedance and resonance frequency of the coil alternating magnetic field are correspondingly changed; the inductance-to-digital converter 3 converts the changed data amount and transmits the converted data amount to the controller 4; the controller 4 obtains the change amount of the distance through a corresponding calculation formula, and the purpose of detection is achieved.
The invention realizes the detection of the ink quantity by utilizing the electric vortex principle, and has the characteristics of high reliability, good stability, high precision, high sensitivity resolution, high response speed and strong anti-interference capability.
In order to further optimize the implementation of the invention, in other embodiments the remaining feature techniques are the same, except that the LC tank circuit 2 is electrically connected to the inductive digitizer 3 via the USB interface circuit 5.
With the above preferred solution, the inductance-to-digital converter 3 directly powers the LC tank 2.
In order to further optimize the implementation effect of the present invention, in other embodiments, the other feature techniques are the same, except that the LC oscillating circuit 2 is electrically connected to the inductance-to-digital converter 3 sequentially through the USB interface circuit 5 and the filter circuit 6.
By adopting the preferable scheme, the possibility that the signal transmission is interfered by the outside is reduced, and the stability of the signal transmission is maintained.
In order to further optimize the implementation of the invention, in other embodiments the remaining feature technology is the same, except that the controller 4 is electrically connected to the inductive digitizer 3 through the IIC extender chip 7.
With the above preferred solution, the IIC extension chip 7 may be, but not limited to, a P82B715 chip, and with the IIC extension chip 7, the communication distance between the controller 4 and the inductance-to-digital converter 3 may be prolonged.
In order to further optimize the implementation of the invention, in other embodiments the remaining feature techniques are the same, except that the clock pins of the inductance-to-digital converter 3 are electrically connected to an external crystal oscillator 8.
By adopting the preferable scheme, the working clock frequency of the chip is increased, and the sensitivity of detecting the ink quantity change is improved. In some embodiments, a 25M external crystal 8 may be used, with a significant increase in chip clock frequency.
In order to further optimize the implementation of the present invention, in other embodiments, the remaining feature techniques are the same, except that the inductor 21 is a planar coil plate mounted on the cartridge cover plate.
By adopting the preferable scheme, the installation is convenient, and other brackets are not needed to be additionally arranged for fixing the inductance coil 21. Further, at least two alignment magnets which are uniformly distributed outside the induction coil 21 are arranged on the ink box cover plate, and the alignment magnets can be electromagnets which are convenient for controlling the magnetism of the alignment magnets. After the alignment magnet is electrified, the metal induction magnet 1 drives the ink bag to be close to the center, then the alignment magnet is closed, mutual inductance is carried out between the inductance coil 21 and the metal induction magnet 1, and therefore measurement is more accurate.
On the other hand, the embodiment of the invention also discloses an ink quantity detection method, which is used for detecting by the ink quantity detection device disclosed in any embodiment, and specifically comprises the following steps:
1) After the power-on is stable, the controller 4 controls the communication with the inductance-digital converter 3, controls the LC oscillating circuit 2 to work and outputs an alternating electromagnetic field;
2) When the ink amount in the ink box is reduced, the ink bag is shrunken, and the distance between the metal induction magnet 1 on the ink bag and the induction coil 21 in the LC oscillating circuit 2 is changed;
3) The inductance-to-digital converter 3 converts the sensed change amount of the distance between the metal inductive body 1 and the inductance coil 21 into a digital amount and transmits the digital amount to the controller 4;
4) The controller 4 determines the change in the ink amount based on the obtained digital amount.
In addition, the embodiment of the invention also discloses an ink-jet printer which comprises the ink quantity detection device disclosed in any embodiment or performs ink quantity detection by using the ink quantity detection method disclosed in the embodiment.
For a better description of the present invention, a specific embodiment is described below, but the scope of the present invention is not limited to only this embodiment. As shown in fig. 3, the inductance-to-digital converter 3 adopts an LDC1612 chip, and the controller 4 adopts an S5P4418 chip.
The LDC1612 chip is a dual-channel 28-bit inductance-digital converter 3, the pin 1 and the pin 2 are IIC communication interfaces, and the LDC1612 chip is communicated with the S5P4418 chip through the P82B715 chip; pin 9 and pin 10 are one detection channel and pin 11 and pin 12 are the other detection channel. The clock pins of the LDC1612 chip are electrically connected to the external crystal oscillator 8, as shown in fig. 4.
In this embodiment, since the inductance coil 21 is to be placed on the ink box cover plate, the pin 9 and the pin 10 of the LDC1612 chip are connected to the LC oscillating circuit 2 through the USB interface circuit 5, and the LDC1612 chip is connected to the USB interface circuit 5 through the filter circuit 6, the LDC1612 chip needs 3.3V voltage to supply power, and the LC oscillating circuit 2 is directly supplied with power by the LDC1612 chip.
In the specific embodiment, the LDC1612 chip is adopted, the sensor structure is small and exquisite and simple, the working environment temperature range is wide, the stability is good, the repeated positioning precision is high, the cost is low and easy, the mass production is realized, the hardware circuit structure is simple, the system power consumption is lower, and the realization cost is lower.
The ink container materials in the existing ink quantity detection device using the optical sensing in the market at present need to be specific, and the receiver and the transmitter are expensive, so that the manufacturing cost is high. The invention relates to an ink quantity detection device and method based on an inductance technology and an ink jet printer, which apply the principle of an inductance type proximity sensor, an inductance digital converter 3 drives an LC oscillating circuit 2 to generate an alternating electromagnetic field, a metal induction magnet 1 generates mutual inductance, detected changes are transmitted to the inductance digital converter 3, the inductance digital converter 3 converts detected change data into digital variables and transmits the digital variables to a controller 4 through an IIC interface, and the controller 4 obtains the distance change quantity through a corresponding calculation formula.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, but not limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. An ink quantity detection device based on inductance technology, characterized by comprising:
a metal magnet mounted on the ink bag;
the inductance coil in the LC oscillation circuit is used for inducing the inductance coil and the metal induction magnet mutually;
the inductance digital converter is electrically connected with the LC oscillating circuit and is used for driving the LC oscillating circuit to generate an alternating electromagnetic field, converting data quantity generated by the change of the distance between the inductance coil and the metal induction magnet into digital quantity and transmitting the digital quantity to the controller;
the controller is in communication connection with the inductance digital converter and is used for controlling the inductance digital converter to work;
when alternating voltage U1 is applied to two ends of the induction coil, alternating current I1 generated flows through the coil to generate an alternating magnetic field H1, when the tested metal induction magnet approaches the induction coil, eddy current I2 is generated in the metal induction magnet according to the electromagnetic induction principle, and a counter magnetic field H2 is generated at the same time to offset part H1;
when the ink quantity in the ink box is reduced, the ink bag is shrunken, the distance X between the metal induction magnet on the ink bag and the induction coil is changed, and the induction impedance and resonance frequency of the coil alternating magnetic field are correspondingly changed; the inductance-to-digital converter converts the changed data quantity and transmits the converted data quantity to the controller; the controller obtains the change amount of the distance through a corresponding calculation formula.
2. The ink amount detecting device according to claim 1, wherein the LC oscillating circuit is electrically connected to the inductance-to-digital converter through a USB interface circuit.
3. The ink amount detecting device according to claim 2, wherein the LC oscillating circuit is electrically connected to the inductance-to-digital converter through a USB interface circuit, a filter circuit, in this order.
4. The ink quantity detecting apparatus according to claim 1, wherein the controller is electrically connected to the inductance-to-digital converter through an IIC extension chip.
5. The ink quantity detecting device according to claim 1, wherein a clock pin of the inductance-to-digital converter is electrically connected to an external crystal oscillator.
6. The ink quantity detecting apparatus according to claim 1, wherein the inductance-to-digital converter employs an LDC1612 chip.
7. The ink amount detecting apparatus according to claim 1, wherein the controller employs an S5P4418 chip.
8. The ink amount detecting apparatus according to any one of claims 1 to 7, wherein the inductance coil is a planar coil plate mounted on a cartridge cover plate.
9. An ink amount detection method, characterized by detecting with the ink amount detection device according to any one of claims 1 to 6, comprising the steps of:
1) After the power-on is stable, the controller controls the communication with the inductance-digital converter, controls the LC oscillating circuit to work and outputs an alternating electromagnetic field;
2) When the ink quantity in the ink box is reduced, the ink bag is shrunken, and the distance between the metal induction magnet on the ink bag and the inductance coil in the LC oscillating circuit is changed;
3) The inductance-digital converter converts the sensed change of the distance between the metal induction magnet and the induction coil into digital quantity and transmits the digital quantity to the controller;
4) The controller judges the change in the ink amount based on the obtained digital amount.
10. An ink jet printer comprising the ink amount detecting device according to any one of claims 1 to 8 or performing ink amount detection by using the ink amount detecting method according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011327149.2A CN112406318B (en) | 2020-11-24 | 2020-11-24 | Ink quantity detection device and method based on inductance technology and ink-jet printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011327149.2A CN112406318B (en) | 2020-11-24 | 2020-11-24 | Ink quantity detection device and method based on inductance technology and ink-jet printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112406318A CN112406318A (en) | 2021-02-26 |
| CN112406318B true CN112406318B (en) | 2023-07-21 |
Family
ID=74777449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011327149.2A Active CN112406318B (en) | 2020-11-24 | 2020-11-24 | Ink quantity detection device and method based on inductance technology and ink-jet printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112406318B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115876231A (en) * | 2022-10-11 | 2023-03-31 | 真诺测量仪表(上海)有限公司 | Character wheel encoder and direct reading method |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR95394E (en) * | 1966-01-11 | 1970-09-11 | Commissariat Energie Atomique | Method of non-destructive testing by eddy currents of electrically conductive tubes and corresponding apparatus. |
| SU1760310A1 (en) * | 1989-07-11 | 1992-09-07 | Новочеркасский Политехнический Институт Им.Серго Орджоникидзе | Distance noncontact measuring device |
| ATE170312T1 (en) * | 1992-06-03 | 1998-09-15 | Landis & Gyr Tech Innovat | COIN DETECTOR |
| DE4322987C2 (en) * | 1993-07-09 | 1997-04-10 | Erwin Halstrup | Coil for generating an alternating magnetic field |
| CA2343853A1 (en) * | 2000-04-14 | 2001-10-14 | Muga Mochizuki | Semiconductor device, ink tank provided with such semiconductor device, ink jet cartridge, ink jet recording apparatus, method for manufacturing such semiconductor device, and communication system, method for controlling pressure, memory element, security system of ink jet recording apparatus |
| CN1160567C (en) * | 2001-11-23 | 2004-08-04 | 清华大学 | Array-type flexible electric eddy sensor |
| ES2236414T3 (en) * | 2002-03-28 | 2005-07-16 | Brother Kogyo Kabushiki Kaisha | INK CARTRIDGE. |
| FI121352B (en) * | 2003-12-18 | 2010-10-15 | Upm Kymmene Corp | Giving device and method based on radio frequency technology |
| CN100568298C (en) * | 2007-12-21 | 2009-12-09 | 中钞长城金融设备控股有限公司 | Coin magnetoelectric characteristic parameters static sweep frequency detection method and detector |
| CN101293428A (en) * | 2008-07-01 | 2008-10-29 | 珠海艾派克微电子有限公司 | Method and circuit for simulation of response characteristic applied to ink jet printer |
| CN201429406Y (en) * | 2008-12-22 | 2010-03-24 | 陈志向 | Two-wire current mode displacement sensor |
| CN101508204B (en) * | 2008-12-31 | 2011-04-06 | 吴学谦 | Container capable of measuring article residual content |
| CN201456565U (en) * | 2009-07-10 | 2010-05-12 | 珠海纳思达电子科技有限公司 | Print cartridge for ink-jet printer |
| CN102161273B (en) * | 2010-11-23 | 2013-07-03 | 珠海天威技术开发有限公司 | Method for detecting surplus of printer magnetic consumption body |
| CN102862391B (en) * | 2011-07-05 | 2015-10-14 | 珠海天威技术开发有限公司 | Detection device of ink amount and detection method thereof |
| CN102529401B (en) * | 2012-01-20 | 2014-08-13 | 珠海天威技术开发有限公司 | Ink box chip and operating method thereof as well as ink box |
| CN202952658U (en) * | 2012-05-25 | 2013-05-29 | 珠海艾派克微电子有限公司 | Print cartridge applied to ink jet printer and chip on print cartridge |
| CN102941736B (en) * | 2012-06-08 | 2015-04-01 | 珠海艾派克微电子有限公司 | Ink cartridge applied to ink-jet printer, chip on ink cartridge and method for controlling chip |
| CN204801245U (en) * | 2015-03-26 | 2015-11-25 | 珠海纳思达企业管理有限公司 | Ink surplus detection mechanism , ink supply system and ink jet printer |
| CN104776791B (en) * | 2015-04-16 | 2018-09-07 | 日立楼宇技术（广州）有限公司 | A kind of method of displacement sensor and measurement displacement |
| CN205121697U (en) * | 2015-11-25 | 2016-03-30 | 成都航空职业技术学院 | Coin counting currency machine control system based on eddy current sensor is pseudo - with image recognition method combination mirror |
| CN205230179U (en) * | 2015-12-02 | 2016-05-11 | 深圳怡化电脑股份有限公司 | Utilize inductance digital converter to realize bank note thickness check's circuit |
| KR20190018379A (en) * | 2017-08-14 | 2019-02-22 | 곽병재 | Excrements detection device and reader for diaper |
| CN108106771B (en) * | 2017-11-29 | 2020-09-18 | 清华大学 | Electric eddy force and/or deformation and/or pressure detection method based on micro/nano film |
| CN207955024U (en) * | 2018-01-04 | 2018-10-12 | 天津丽彩数字技术有限公司 | Negative pressure type ink supplying device, ink feeding system and printing device |
| CN110395050B (en) * | 2018-04-25 | 2022-04-15 | 鸿富锦精密工业（深圳）有限公司 | Ink amount detection device, ink storage and ink supply system |
| CN208155251U (en) * | 2018-05-07 | 2018-11-27 | 石河子大学 | A kind of LC resonance midsequent eddy current displacement measuring device |
| CN208547011U (en) * | 2018-07-03 | 2019-02-26 | 深圳市鑫汇科股份有限公司 | Display device and electromagnetic induction heating device |
| CN109187732A (en) * | 2018-09-12 | 2019-01-11 | 南京航空航天大学 | A kind of barkhausen signal detection probe and measurement method with lift off measurement |
| CN109878824A (en) * | 2019-02-23 | 2019-06-14 | 昆明泰仕达科技有限公司 | Band mental package object Short Item detection device and its detection method in packing case |
| CN210415538U (en) * | 2019-07-04 | 2020-04-28 | 珠海赛纳打印科技股份有限公司 | Ink amount detection device and 3D printing device |
| CN110525054B (en) * | 2019-09-28 | 2021-09-17 | 深圳市汉森软件有限公司 | Printer ink amount detection method, device, equipment and storage medium |
| CN213767885U (en) * | 2020-11-24 | 2021-07-23 | 武汉先同科技有限公司 | Ink quantity detection device based on inductance technology and ink-jet printer |
-
2020
- 2020-11-24 CN CN202011327149.2A patent/CN112406318B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112406318A (en) | 2021-02-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW508632B (en) | Ink jet recording apparatus utilizing solid semiconductor element | |
| CN112406318B (en) | Ink quantity detection device and method based on inductance technology and ink-jet printer | |
| CN102003973B (en) | Wireless passive measuring method and circuit | |
| CN101422987B (en) | Container capable of detecting the residual amount of article and detection device | |
| CN100578137C (en) | Magnetostrictive displacement sensor | |
| CN203489925U (en) | Passive intelligent water meter | |
| KR101919052B1 (en) | Coordinate indicating device and coordinate sensing apparatus for sensing input coordinate of coordinate indicating device | |
| CN105369412B (en) | A kind of spinning frame burn out detection sensing device of adaptive measuring distance | |
| CN102529401B (en) | Ink box chip and operating method thereof as well as ink box | |
| CN213767885U (en) | Ink quantity detection device based on inductance technology and ink-jet printer | |
| CN205230179U (en) | Utilize inductance digital converter to realize bank note thickness check's circuit | |
| CN101334303B (en) | Field equipment of two-wire | |
| JP4827832B2 (en) | Tire pressure detection system and tire pressure detection device | |
| CN206638287U (en) | A kind of variable frequency excitation mode two-wire system electromagnetic flowmeter | |
| CN105247328B (en) | Temperature survey under high-voltage potential | |
| CN104361305B (en) | A kind of radio-frequency card card seeking method and device of intelligent gauge | |
| CN102161273B (en) | Method for detecting surplus of printer magnetic consumption body | |
| CN206002171U (en) | A kind of Ultrasonic Level Transmitter | |
| CN205120027U (en) | Modified current vortex calibrator | |
| CN110426064A (en) | Wireless sourceless sensor and wireless and passive method for sensing | |
| CN219284368U (en) | Zero-power consumption remote water meter | |
| EP3828516A1 (en) | Monitoring system for a feeding bottle | |
| CN214951552U (en) | Pulse water meter based on artificial intelligence measurement | |
| CN204613295U (en) | A kind of passive and wireless synchronous intelligent numeral punching low current sensor device | |
| CN201138521Y (en) | Wireless digital displacement pickup |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 02, 5 / F, block 7, Fenghuang Industrial Park, No. 52, Liufang Avenue, fozuling street, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee after: Wuhan Xiantong Technology Co.,Ltd. Address before: No. 02, 5 / F, block 7, Fenghuang Industrial Park, No. 52, Liufang Avenue, fozuling street, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430000 Patentee before: WUHAN XIANTONG TECHNOLOGY Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |