CN202903967U - Dry reed pipe detection device - Google Patents
Dry reed pipe detection device Download PDFInfo
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- CN202903967U CN202903967U CN 201220563429 CN201220563429U CN202903967U CN 202903967 U CN202903967 U CN 202903967U CN 201220563429 CN201220563429 CN 201220563429 CN 201220563429 U CN201220563429 U CN 201220563429U CN 202903967 U CN202903967 U CN 202903967U
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Abstract
The utility model provides a dry reed pipe detection device which belongs to the technical field of dry reed pipe detection. The utility model provides a solution for the problem that the prior detection device requires manual judgment on whether a dry reed pipe is qualified, costs much labor and is not simple in detection. The dry reed pipe detection device comprises an interface circuit used for connecting a dry reed pipe, a signal conditioning circuit used for processing a voltage signal transmitted by the interface circuit, a prompt unit used for giving a prompt when a detected dry reed pipe is qualified, and a controller used for making judgment according to the signal transmitted by the signal conditioning circuit and outputting a corresponding control signal to the prompt unit, wherein the interface circuit is connected with an input end of the controller through the signal conditioning circuit, and the prompt unit is connected with an output end of the controller. According to the detection device, the controller judges whether a dry reed pipe is qualified or not and the prompt unit gives a prompt when the dry reed pipe is detected to be qualified, the operation is simple and convenient, and the prompt is clear.
Description
Technical field
The utility model belongs to tongue tube detection technique field, relates to a kind of dry reed tube testing device.
Background technology
Tongue tube is to be sealed in the glass tube by two dried reeds, and two dried reeds are a bit of space of crossover shape and interval.Suitable magnetic field intensity will make two dried reeds be in contact with one another, and after field weakening or disappearance, dried reed can separate.Therefore, tongue tube often is used to sensor, counter and spacing etc.
Development along with industry control technology and electronic computer technology, the precision of tongue tube detection and the requirement of efficient are improved day by day, but the tongue tube performance detector technology that at present domestic a lot of factories use is relatively backward, mostly rests on the level of manual adjustment and artificial reading.The tradition Reed pipe detector belongs to manually-operated, whether generally detect tongue tube with multimeter qualified, the variable-resistance while eyes of testing staff's manual adjustments also will stare at the variation of multimeter reading always, in so long work, the testing staff is because overtired meeting causes the personal error that detects data, and exist test speed slow, point out not obviously, need to train the problems such as on duty to the employee.In addition, investigation shows that existing traditional instrument service precision is low, and efficient is poor, and factory's labour intensity is large, also is not easy to computing machine and carries out data management and analysis.Even under many circumstances certified products are judged to waste product, caused the huge wasting of resources.
For the problem of above-mentioned existence, existing Chinese patent literature discloses a kind of Reed pipe detector [application number: CN201020122808.4], and it comprises: coil is used to form magnetic field; Controller, the lead-out terminal of this controller is connected with described coil, and being used for control coil increases electric current linearly; Whether and this controller input terminal connects tongue tube to be detected, closed to detect tongue tube, if closure, then computing tongue tube AT value at this moment; Display is connected in described controller output pin and is used for showing described AT value; And power supply, the electric energy of predetermined voltage is provided for above-mentioned each element.Although this detector can effectively detect the sensitivity of tongue tube, this detector need to artificially be judged by the numerical value that shows screen display, compare labor intensive and easy not.
Summary of the invention
The purpose of this utility model is to have the problems referred to above for existing technology, has proposed a kind of simple operation and has pointed out obvious dry reed tube testing device.
The purpose of this utility model can realize by following technical proposal: a kind of dry reed tube testing device, it is characterized in that, this pick-up unit comprises for the interface circuit that connects tongue tube, be used for the signal conditioning circuit that voltage signal that interface circuit carries is processed, for the Tip element of when the tongue tube that detects is qualified, pointing out and for judging according to the signal of described signal conditioning circuit conveying and exporting corresponding control signal to the controller of described Tip element, described interface circuit is connected with the input end of described controller by signal conditioning circuit, and described Tip element is connected with the output terminal of described controller.
This dry reed tube testing device is connected tongue tube when tongue tube is detected with interface circuit, during near tongue tube, tongue tube is in off-state at magnet steel; At magnet steel during near tongue tube, two dried reeds in the tongue tube are in contact with one another, interface circuit will carry a voltage signal to signal conditioning circuit this moment, signal conditioning circuit is processed the signal that receives, flow to controller behind the filtering interference signals, the signal that controller is carried according to signal conditioning circuit is judged, judging that tongue tube transmits control signal to reminding unit after qualified, reminding unit carries out acousto-optic hint to the staff, prompting staff tongue tube detects acceptance or rejection and points out the staff to carry out the detection of next tongue tube, easy to operate, do not need the people for judging, improved work efficiency.
In above-mentioned dry reed tube testing device, described interface circuit comprises resistance R 1, the resistance R 2 that is connected into the loop and is connected a Wiring port that is used for connecting tongue tube, and described resistance R 2 is connected tie point extension line that tie point extension line and resistance R 1 be connected with resistance R and is connected with above-mentioned signal conditioning circuit respectively with Wiring port.The two ends of tongue tube are connected with two Wiring ports respectively, and when magnet steel caused that near tongue tube tongue tube is closed, the output impedance of interface circuit was the resistance after resistance R 1 and resistance R 2 parallel connections; Near tongue tube, output impedance was the resistance of resistance R 2 when namely tongue tube disconnected at magnet steel, and controller judges according to this characteristic whether tongue tube is qualified.
In above-mentioned dry reed tube testing device, this pick-up unit also comprises be used to the power supply that the required electric energy of described pick-up unit work is provided.
In above-mentioned dry reed tube testing device, described signal conditioning circuit comprises diode D8 and the resistance R 3 of connecting successively, resistance R 4 and capacitor C 5, in parallel with diode D8 after described resistance R 3 and resistance R 4 series connection, described resistance R 3 is connected with the negative electrode of diode D8 and connects power supply, the tie point that described resistance R 3 is connected with resistance R and above-mentioned resistance R 2 are connected the tie point extension line and are connected with Wiring port, described capacitor C 5 is connected with the tie point extension line that above-mentioned resistance R 1 is connected with resistance R and ground connection, and the tie point that described resistance R 4 is connected with capacitor C is connected with the input end of above-mentioned controller.Resistance R 3 in this signal conditioning circuit forms bleeder circuit with interface circuit, and its output voltage size is relevant with the duty of tongue tube; Resistance R 4 and capacitor C 5 forms the single order low-pass filter circuits, and the voltage signal of output guarantees the stability of data through the single order low-pass filter circuit undesired signal that causes because of factors such as frock shakes of filtering effectively.
In above-mentioned dry reed tube testing device, described Tip element comprises pilot lamp one, pilot lamp two and the hummer that is connected with the output terminal of above-mentioned controller respectively.When being in off-state and closure state by pilot lamp one and two pairs of tongue tubes of pilot lamp, this pick-up unit points out respectively, carry out buzzing by hummer when judgement is qualified, the tongue tube that prompting detects is certified products, and prompting obviously, easy and simple to handle, effectively improved work efficiency.
In above-mentioned dry reed tube testing device, be connected with respectively between the output terminal of described controller and pilot lamp one, pilot lamp two and the hummer for the driving circuit that drives pilot lamp one, pilot lamp two and hummer work.
In above-mentioned dry reed tube testing device, described pilot lamp one and pilot lamp two are LED light.
In above-mentioned dry reed tube testing device, described controller is single-chip microcomputer.
In above-mentioned dry reed tube testing device, described power supply is direct current 5V voltage.
In above-mentioned dry reed tube testing device, this pick-up unit also comprises the full-wave rectification mu balanced circuit that is converted into stable direct current 5V voltage for the 6V alternating voltage that transformer is transformed.
Compared with prior art, this tongue tube pick-up unit has the following advantages:
Whether the of-state voltage when 1, the utility model is in different conditions by controller to tongue tube carries out acquisition process and reminds staff's reed switch circuit to be measured qualified with high brightness pilot lamp and hummer, simple in structure, easy to operate, prompting has obviously improved work efficiency effectively.
2, the utility model adopts low-pass filtering and controller that the signal that gathers is processed, effectively removed once in a while property undesired signal of high frequency, guarantee the validity of sampled value, thereby guaranteed stability and the reliability of pick-up unit, and then improved Accuracy of Judgement.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is circuit theory diagrams of the present utility model.
Among the figure, 1, controller; 2, signal conditioning circuit; 3, interface circuit; 31, Wiring port; 4, Tip element; 5, pilot lamp one; 6, pilot lamp two; 7, hummer; 8, two-way OC type driving circuit; 9, buzzer drive circuit.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
As shown in Figure 1, 2, this tongue tube pick-up unit comprises for the interface circuit 3 that connects tongue tube, be used for signal conditioning circuit 2 that voltage signal that interface circuit 3 carries processes, be used for the Tip element 4 of pointing out and be used for judging and exporting corresponding control signal to the controller 1 of Tip element 4 according to the signal that signal conditioning circuit 2 is carried when the tongue tube that detects is qualified, interface circuit 3 is connected with the input end of controller 1 by signal conditioning circuit 2, and Tip element 4 is connected with the output terminal of controller 1; This pick-up unit also comprises be used to the power supply that the required electric energy of described dry reed tube testing device work is provided.
Specifically, interface circuit 3 comprises resistance R 1, the resistance R 2 that is connected into the loop and is connected a Wiring port 31 that is used for connecting tongue tube that the tie point extension line that resistance R 2 is connected with Wiring port is connected with signal conditioning circuit 2 respectively with the tie point extension line that resistance R 1 is connected with resistance R.The two ends of tongue tube are connected with two Wiring ports 31 respectively, and when magnet steel caused that near tongue tube tongue tube is closed, the output impedance of interface circuit 3 was the resistance after resistance R 1 and resistance R 2 parallel connections; Near tongue tube, output impedance was the resistance of resistance R 2 when namely tongue tube disconnected at magnet steel, and controller 1 judges according to this characteristic whether tongue tube is qualified.
Tip element 4 comprises pilot lamp 1, pilot lamp 26 and the hummer 7 that is connected with the output terminal of controller 1 respectively, and its pilot lamp 1 and pilot lamp 26 are LED light; Between the output terminal of controller 1 and pilot lamp 1, pilot lamp 26 and hummer 7, be connected with respectively for the driving circuit that drives pilot lamp 1, pilot lamp 26 and hummer 7 work; The buzzer drive circuit 9 that is used for 7 work of driving hummer comprises diode D5, switching tube Q1 and current-limiting resistance R5, the end of its current-limiting resistance R5 is connected with the input end of controller 1, the other end of current-limiting resistance R5 is connected with the base stage of triode Q1, the collector of triode Q1 is connected with hummer with the anode of diode D5 respectively and is connected, the negative electrode of diode D5 is connected with hummer 7 and connects power supply, the grounded emitter of triode Q1, its triode Q1 plays on-off action, the base stage of triode Q1 makes triode Q1 saturation conduction when being high level, make hummer 7 sounding, triode Q1 is closed, and hummer 7 stops sounding; Be used for driving the driving circuit of pilot lamp 1 and pilot lamp 26 work by triode Q2, Q3 and current-limiting resistance R6, R7 forms two-way OC type driving circuit 8 provides driving to the work of pilot lamp 1 and pilot lamp 26 respectively, its current-limiting resistance R6 is connected an end and is connected with the input end of controller 1 respectively with current-limiting resistance R7, current-limiting resistance R6 is connected the other end and is connected base stage with triode Q3 with triode Q2 respectively and is connected with current-limiting resistance R7, the collector of triode Q2 is connected with pilot lamp 1, the collector of triode Q3 is connected with pilot lamp 26, and the emitter of triode Q2 and triode Q3 is ground connection respectively.When being in off-state and closure state by pilot lamp 1 and 26 pairs of tongue tubes of pilot lamp, this pick-up unit points out respectively, carry out buzzing by hummer 7 when judgement is qualified, the tongue tube that prompting detects is certified products, and prompting obviously, easy and simple to handle, effectively improved work efficiency.
As another kind of scheme, indicating member in this pick-up unit comprises pilot lamp 1, pilot lamp 26 and the voice reminder that is connected with the output terminal of controller 1 respectively, pilot lamp 1 and pilot lamp 26 are LED light, voice reminder carries out voice suggestion to tongue tube is whether qualified, sends the prompting sound of " this detection piece is qualified " when tongue tube is qualified; Send the prompting sound of " this detection piece is defective " when tongue tube is defective, prompting obviously provides convenience for testing staff's work, has increased efficient.
In this pick-up unit, controller 1 adopts the STC12C5410AD series monolithic, and this single-chip microcomputer possesses built-in 10BitsADC, and it is fast to have speed, the measuring accuracy advantages of higher.
Power supply is direct current 5V voltage, and the 6V alternating voltage that this direct current 5V voltage is transformed transformer by the full-wave rectification mu balanced circuit transforms and obtains.
The specific works process of this dry reed tube testing device is: when tongue tube is detected, tongue tube is connected with two Wiring ports 31 in the interface circuit 3, each components and parts in its interface circuit 3 can be arranged on the wiring board, when the output line of this wiring board was not connected with signal conditioning circuit 2, signal conditioning circuit 2 was input to the supply voltage of voltage for drawing of controller 1 input end on resistance R 3; When the output line of wiring board with after signal conditioning circuit 2 is connected, interface circuit 3 has formed a minute hydraulic circuit with signal conditioning circuit 2, when tongue tube is in different conditions, the voltage that is input to the single-chip microcomputer input end also can present corresponding state value, and single-chip microcomputer detects this of-state voltage by built-in ADC and judges whether the tongue tube on this wiring board is unusual.Status input signal during the tongue tube different conditions is as follows: at magnet steel during near tongue tube, tongue tube is in off-state, the signal of interface circuit 3 outputs is the magnitude of voltage of resistance R 2, with this voltage signal input signal conditioning circuit 2, single order low-pass filter circuit by resistance R 4 in the signal conditioning circuit 2 and capacitor C 5 compositions, to wait the high-frequency interferencing signal filtering that causes because of shake, guarantee the stability of the signal that single-chip microcomputer collects, single-chip microcomputer is analyzed judgement to the voltage signal of signal conditioning circuit 2 inputs, predefined setting value is exported control signal for the moment to pilot lamp 1 in satisfying single-chip microcomputer, pilot lamp 1 is lighted, pilot lamp 26 does not work, and hummer 7 does not carry out buzzing; At magnet steel during near tongue tube, two dried reeds in the tongue tube are in contact with one another, the voltage signal of interface circuit 3 this moment after with resistance R 1 and resistance R 2 parallel connections flows to signal conditioning circuit 2, the signal of 2 pairs of receptions of signal conditioning circuit is processed, flow to single-chip microcomputer behind the filtering interference signals, the signal that single-chip microcomputer is carried according to signal conditioning circuit 2 is analyzed judgement, the output control signal is to pilot lamp 26 when the voltage signal of carrying satisfies in the single-chip microcomputer predefined setting value two, pilot lamp 26 is lighted, hummer 7 does not carry out buzzing, single-chip microcomputer is after pilot lamp 1 and pilot lamp 26 are lit respectively, the whole duty of judging tongue tube is normal, send control signal and carry out buzzing to hummer 7 this moment, and the tongue tube that the prompting staff should detect is certified products; If a complete test period, namely tongue tube lives through the closed and disconnected state, still there is an a kind of lamp not to be lit, illustrate that then this tongue tube that detects is defective; Whether qualified can detect fast in this way the wiring board that is comprised of tongue tube, resistance R 1 and resistance R 2, and operating process is easy, high efficiency.
Specific embodiment described herein only is to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has more used the terms such as controller 1, signal conditioning circuit 2, interface circuit 3, Wiring port 31, Tip element 4, pilot lamp 1, pilot lamp 26, hummer 7, two-way OC type driving circuit 8, buzzer drive circuit 9, do not get rid of the possibility of using other term.Using these terms only is in order to describe more easily and explain essence of the present utility model; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (10)
1. dry reed tube testing device, it is characterized in that, this pick-up unit comprises for the interface circuit (3) that connects tongue tube, be used for the signal conditioning circuit (2) that voltage signal that interface circuit (3) carries is processed, for the Tip element (4) of when the tongue tube that detects is qualified, pointing out and for judging according to the signal of described signal conditioning circuit (2) conveying and exporting corresponding control signal to the controller (1) of described Tip element (4), described interface circuit (3) is connected with the input end of described controller (1) by signal conditioning circuit (2), and described Tip element (4) is connected with the output terminal of described controller (1).
2. dry reed tube testing device according to claim 1, it is characterized in that, described interface circuit (3) comprises resistance R 1, the resistance R 2 that is connected into the loop and is connected a Wiring port (31) that is used for connecting tongue tube that described resistance R 2 is connected 31 with Wiring port) tie point extension line and the resistance R 1 tie point extension line of being connected with resistance R be connected with above-mentioned signal conditioning circuit (2) respectively.
3. dry reed tube testing device according to claim 2 is characterized in that, this pick-up unit also comprises be used to the power supply that the required electric energy of described pick-up unit work is provided.
4. dry reed tube testing device according to claim 3, it is characterized in that, described signal conditioning circuit (2) comprises diode D8 and the resistance R 3 of connecting successively, resistance R 4 and capacitor C 5, in parallel with diode D8 after described resistance R 3 and resistance R 4 series connection, described resistance R 3 is connected with the negative electrode of diode D8 and connects power supply, the tie point that described resistance R 3 is connected with resistance R is connected 31 with above-mentioned resistance R 2 with Wiring port) the tie point extension line be connected, described capacitor C 5 is connected with the tie point extension line that above-mentioned resistance R 1 is connected with resistance R and ground connection, and the tie point that described resistance R 4 is connected with capacitor C is connected with the input end of above-mentioned controller (1).
5. dry reed tube testing device according to claim 1 is characterized in that, described Tip element (4) comprises pilot lamp one (5), pilot lamp two (6) and the hummer (7) that is connected with the output terminal of above-mentioned controller (1) respectively.
6. dry reed tube testing device according to claim 5, it is characterized in that, be connected with respectively between the output terminal of described controller (1) and pilot lamp one (5), pilot lamp two (6) and the hummer (7) for the driving circuit that drives pilot lamp one (5), pilot lamp two (6) and hummer (7) work.
7. according to claim 5 or 6 described dry reed tube testing devices, it is characterized in that described pilot lamp one (5) and pilot lamp two (6) are LED light.
8. dry reed tube testing device according to claim 1 is characterized in that, described controller (1) is single-chip microcomputer.
9. dry reed tube testing device according to claim 3 is characterized in that, described power supply is direct current 5V voltage.
10. dry reed tube testing device according to claim 9 is characterized in that, this pick-up unit also comprises the full-wave rectification mu balanced circuit that is converted into stable direct current 5V voltage for the 6V alternating voltage that transformer is transformed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563429 CN202903967U (en) | 2012-10-30 | 2012-10-30 | Dry reed pipe detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563429 CN202903967U (en) | 2012-10-30 | 2012-10-30 | Dry reed pipe detection device |
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| Publication Number | Publication Date |
|---|---|
| CN202903967U true CN202903967U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220563429 Expired - Fee Related CN202903967U (en) | 2012-10-30 | 2012-10-30 | Dry reed pipe detection device |
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| Country | Link |
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| CN (1) | CN202903967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911465A (en) * | 2016-04-25 | 2016-08-31 | 国网新疆电力公司检修公司 | Circuit breaker switch state detection device based on principle of magnetic field |
-
2012
- 2012-10-30 CN CN 201220563429 patent/CN202903967U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911465A (en) * | 2016-04-25 | 2016-08-31 | 国网新疆电力公司检修公司 | Circuit breaker switch state detection device based on principle of magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20141030 |
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| EXPY | Termination of patent right or utility model |