CN103604481A - Sensor - Google Patents
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- CN103604481A CN103604481A CN201310586335.1A CN201310586335A CN103604481A CN 103604481 A CN103604481 A CN 103604481A CN 201310586335 A CN201310586335 A CN 201310586335A CN 103604481 A CN103604481 A CN 103604481A
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- contact rod
- sensor
- sensor body
- rod
- contact
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Abstract
The invention relates to a sensor comprising a sensor body, a casing, a first contact rod, a second contact rod and a third contact rod. The casing is arranged on the outer surface of the sensor body, a liquid collection film is arranged at the lower end of the sensor body, the first contact rod and the third contact rod are mounted on the two inner sides of the casing, the second contact rod is mounted in the sensor body, a signal circuit is connected between the first contact rod and the third contact rod, and an alarm circuit is connected between the second contact rod and the third contact rod. The sensor has functions of fault reminding and control signal outputting, and is convenient to maintain, low in cost, beneficial to system control and capable of guaranteeing reliability of measured values as compared with the mode of adding liquid level meters in the prior art.
Description
Technical field
The present invention relates to a kind of sensor device, relating in particular to can be because connecing a kind of sensor of the bad and damaged initiative alarming of body of liquid.
Background technology
It is to measure height of liquid level by installing liquid level gauge additional that traditional judgement sensor connects the bad method of liquid, then judges according to spot sensor fitting depth whether sensor enters liquid level, when liquid level lower than sensor is, illustrates that sensor does not contact with fluid to be measured.By in the program of the fitting depth input liquid level gauge of sensor, then give the alarm by liquid level gauge.But when also only limiting to be arranged on open river course or pond, this could realize.For sensor broken cause bad whether itself, only have at present that personnel are visual could be found by making regular check on.In use, when liquid level changes, sensor can depart from liquid level to existing common sensor sometimes, causes measurement data invalid.When breakage occurs sensor, measured value can not conform to the actual conditions yet.And these situations user is in use not easy to find timely.Importantly wrong data will be brought very large economic loss to user, the wrong water treatment process for example causing in the data of field of Environment Protection mistake, product rejection that the data of industrial circle mistake cause etc.
Prior art is that sensor is when being arranged on open river course or pond, can by extra increase cost near sensor, install additional liquid level gauge come calculating sensor whether with fluid to be measured good contact, not only increase cost, also increased on-the-spot maintenance, defective level measurement scheme also often causes overall plan to lose efficacy, and cannot guarantee the validity of measurement data.But whether sensor itself is damaged, must just can find by routine inspection, thereby further strengthen maintenance.The sensor of installing in confined conditions in addition, have no idea at present to realize and observing by above method at all, for example be arranged on the sensor in pipeline, whether ducted water effectively contacts with sensor, whether pipeline inner sensor breaks all cannot be observed, unless stopped work to disassemble, see, this method almost cannot realize in a lot of occasions, even if strengthen inspection dynamics, mistake still cannot be found in the very first time, even change down intact sensor often for fear of a lot of users of loss, bothersome effort is expensive.
Summary of the invention
In order to solve, above-mentioned common sensor is insurmountable contacts the problems such as measuring error that the measuring error that causes and sensor breakage cause because sensor and measured medium are bad, the invention provides can the very first time find sensor whether with fluid to be measured good contact, can be also to find whether break a kind of sensor of feed liquor of sensor the very first time.
The present invention solves the technical scheme that its technical matters takes: a kind of sensor, comprise sensor body, housing and contact rod, the outside surface of described sensor body is provided with housing, described sensor body bottom is for connecing liquid film, the quantity of described contact rod is three, be respectively the first contact rod, the second contact rod, the 3rd contact rod, described the first contact rod and the 3rd contact rod are arranged on the both sides, inside of housing, described the second contact rod is arranged in sensor body, between described the first contact rod and the 3rd contact rod, be connected with signal circuit, between described the second contact rod and the 3rd contact rod, be connected with circuit for alarming.
Preferably, described signal circuit is by the first contact rod, the first power input, and the 3rd resistance, the second photo-coupler, the second light emitting diode, the second resistance and the 3rd contact rod are in series.
Preferably, described the first power input is external+24V direct supply.
Preferably, described circuit for alarming is in series by the second contact rod, the first resistance, the first light emitting diode, the first photo-coupler, loudspeaker, second source input end, the first contact rod.
Preferably, described second source input end is external+5V direct supply.
Preferably, described in, connecing liquid film is glass ball bulb.
Preferably, described contact rod is platinum rod.
Beneficial effect of the present invention: the present invention in use, when sensor immersed in liquid level, in the first contact rod of the enclosure interior of sensor and the principle that the 3rd contact rod utilizes liquid conduction, signal circuit between these two contact rods forms path, with this signal circuit, can externally provide signal, as light pilot lamp, and open measurement, reminding user current measurement value is effective; When liquid level is during lower than contact rod, between contact rod, disconnect, pilot lamp does not work, and the current liquid level of reminding user, lower than sensor, can be closed measurement.When connecing after liquid film damage of sensor body lower end, outside liquid enters sensor body inside, can make the first contact rod in the second contact rod in sensor body and housing form path, thereby circuit for alarming also can be lighted pilot lamp, reminding user is safeguarded in time.Hence one can see that, and the present invention has fault prompt facility, and can export control signal, and with respect to traditional method comparison of installing liquid level gauge additional, its maintenance is more convenient, cost is lower, and is convenient to system to control, and can guarantee the reliability of measured value.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Fig. 1 is overall schematic of the present invention.
Embodiment
A kind of sensor as shown in Figure 1, comprises sensor body 1, housing 2 and contact rod 3, and the outside surface of described sensor body 1 is provided with housing 2, and described sensor body 1 bottom is for connecing liquid film 11, described in connect liquid film 11 for glass ball bulb.The quantity of described contact rod 3 is three, be respectively the first contact rod 31, the second contact rod 32, the 3rd contact rod 33, described the first contact rod 31, the second contact rod 32, the 3rd contact rod 33 are platinum rod, described the first contact rod 31 and the 3rd contact rod 33 are arranged on the both sides, inside of housing 2, described the second contact rod 32 is arranged in sensor body 1, between described the first contact rod 31 and the 3rd contact rod 33, be connected with signal circuit, between described the second contact rod 32 and the 3rd contact rod 33, be connected with circuit for alarming.
Preferably, described signal circuit is by the first contact rod 31, the first power input IN1, the 3rd resistance R 7, the second photo-coupler IGN2, the second light emitting diode D2, the second resistance R 2 and the 3rd contact rod 33 are in series, and described the first power input IN1 is external+24V direct supply.
Preferably, described circuit for alarming is in series by the second contact rod 32, the first resistance R 1, the first light emitting diode D1, the first photo-coupler IGN1, loudspeaker LS, second source input end IN2, the first contact rod 31, and described second source input end IN2 is external+5V direct supply.
The present invention in use, when sensor immersed in liquid level, the first contact rod 31 in housing 2 inside of sensor contacts with the 3rd the principle that 33 rods utilize liquid conduction, signal circuit between these two contact rods forms path, with this signal circuit, can externally provide signal, as light pilot lamp, and open measurement, reminding user current measurement value is effective; When liquid level is during lower than contact rod, between contact rod, disconnect, pilot lamp does not work, and the current liquid level of reminding user, lower than sensor, can be closed measurement.When connecing after liquid film 11 damages of sensor body 1 lower end, outside liquid enters sensor body 1 inside, can make the second contact rod 32 in sensor body 1 form path with the first contact rod 31 in housing 2, thereby circuit for alarming also can be lighted pilot lamp, reminding user is safeguarded in time.Hence one can see that, and the present invention has fault prompt facility, and can export control signal, and with respect to traditional method comparison of installing liquid level gauge additional, its maintenance is more convenient, cost is lower, and is convenient to system to control, and can guarantee the reliability of measured value.
It is emphasized that, it is more than preferred embodiment of the present invention, not the present invention is done to any type of restriction in appearance, any simple modification, equivalent variations and modification that every foundation technical spirit of the present invention is done above embodiment, all still belong in the scope of technical solution of the present invention.
Claims (7)
1. a sensor, comprise sensor body (1), housing (2) and contact rod (3), it is characterized in that: the outside surface of described sensor body (1) is provided with housing (2), described sensor body (1) bottom is for connecing liquid film (11), the quantity of described contact rod (3) is three, be respectively the first contact rod (31), the second contact rod (32), the 3rd contact rod (33), described the first contact rod (31) and the 3rd contact rod (33) are arranged on the both sides, inside of housing (2), described the second contact rod (32) is arranged in sensor body (1), between described the first contact rod (31) and the 3rd contact rod (33), be connected with signal circuit, between described the second contact rod (32) and the 3rd contact rod (33), be connected with circuit for alarming.
2. a kind of sensor according to claim 1, it is characterized in that: described signal circuit is by the first contact rod (31), the first power input (IN1), and the 3rd resistance (R7), the second photo-coupler (IGN2), the second light emitting diode (D2), the second resistance (R2) and the 3rd contact rod (33) are in series.
3. a kind of sensor according to claim 2, is characterized in that: described the first power input (IN1) is external+24V direct supply.
4. a kind of sensor claimed in claim 1, is characterized in that: described circuit for alarming is in series by the second contact rod (32), the first resistance (R1), the first light emitting diode (D1), the first photo-coupler (IGN1), loudspeaker (LS), second source input end (IN2), the first contact rod (31).
5. a kind of sensor according to claim 4, is characterized in that: described second source input end (IN2) is external+5V direct supply.
6. a kind of sensor according to claim 1, is characterized in that: described in to connect liquid film (11) be glass ball bulb.
7. a kind of sensor according to claim 1, is characterized in that: described the first contact rod (31), the second contact rod (32), the 3rd contact rod (33) are platinum rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586335.1A CN103604481B (en) | 2013-11-21 | 2013-11-21 | A kind of sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310586335.1A CN103604481B (en) | 2013-11-21 | 2013-11-21 | A kind of sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103604481A true CN103604481A (en) | 2014-02-26 |
| CN103604481B CN103604481B (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310586335.1A Active CN103604481B (en) | 2013-11-21 | 2013-11-21 | A kind of sensor |
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| Country | Link |
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| CN (1) | CN103604481B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112136030A (en) * | 2018-05-18 | 2020-12-25 | 马克里德斯有限及两合公司 | Sensor system for early detection of mechanical changes |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192029Y (en) * | 1994-01-13 | 1995-03-15 | 庞世修 | Device for measuring storage fuel contents in oil cylinder |
| KR20090022075A (en) * | 2007-08-29 | 2009-03-04 | 부산대학교 산학협력단 | Water level measuring instrument with float sensor defect diagnosis function |
| KR20100101197A (en) * | 2009-03-09 | 2010-09-17 | 김영범 | Vehicle fuel level indicator and its control method |
| CN201712977U (en) * | 2010-06-18 | 2011-01-19 | 大连市铭源全科技开发有限公司 | Store device for efficient water reducing agent |
| CN202339217U (en) * | 2011-12-07 | 2012-07-18 | 杭州博能电子科技有限公司 | Sensor for solar water heater |
| CN102981518A (en) * | 2012-12-25 | 2013-03-20 | 魏传永 | Automatic water level control device provided with time-base circuit |
| CN103389141A (en) * | 2012-05-09 | 2013-11-13 | 海洋王（东莞）照明科技有限公司 | Water level alarm circuit applied to watering tool of thermal-humidity test chamber |
| CN203572547U (en) * | 2013-11-21 | 2014-04-30 | 苏州立天机电有限公司 | Sensor |
-
2013
- 2013-11-21 CN CN201310586335.1A patent/CN103604481B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2192029Y (en) * | 1994-01-13 | 1995-03-15 | 庞世修 | Device for measuring storage fuel contents in oil cylinder |
| KR20090022075A (en) * | 2007-08-29 | 2009-03-04 | 부산대학교 산학협력단 | Water level measuring instrument with float sensor defect diagnosis function |
| KR20100101197A (en) * | 2009-03-09 | 2010-09-17 | 김영범 | Vehicle fuel level indicator and its control method |
| CN201712977U (en) * | 2010-06-18 | 2011-01-19 | 大连市铭源全科技开发有限公司 | Store device for efficient water reducing agent |
| CN202339217U (en) * | 2011-12-07 | 2012-07-18 | 杭州博能电子科技有限公司 | Sensor for solar water heater |
| CN103389141A (en) * | 2012-05-09 | 2013-11-13 | 海洋王（东莞）照明科技有限公司 | Water level alarm circuit applied to watering tool of thermal-humidity test chamber |
| CN102981518A (en) * | 2012-12-25 | 2013-03-20 | 魏传永 | Automatic water level control device provided with time-base circuit |
| CN203572547U (en) * | 2013-11-21 | 2014-04-30 | 苏州立天机电有限公司 | Sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112136030A (en) * | 2018-05-18 | 2020-12-25 | 马克里德斯有限及两合公司 | Sensor system for early detection of mechanical changes |
| CN112136030B (en) * | 2018-05-18 | 2022-09-09 | 马克里德斯有限及两合公司 | Sensor system for early detection of mechanical changes |
Also Published As
| Publication number | Publication date |
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| CN103604481B (en) | 2016-08-24 |
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Effective date of registration: 20151229 Address after: Yongan road Suzhou City, Jiangsu province 215000 Suzhou high tech Industrial Development Zone No. 128, building 1, room 220 (Wang Industrial Park) Applicant after: Suzhou Derry Finno Environment Science and Technology Co., Ltd. Address before: 215006 Jiangsu province Suzhou City Donghuan Road No. 657 winner B business building 4 floor 3A04 Applicant before: LITI ELECTROMECHANICAL CO., LTD. |
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