CN103576707A - Liquid level controller suitable for various environments - Google Patents
Liquid level controller suitable for various environments Download PDFInfo
- Publication number
- CN103576707A CN103576707A CN201210281652.8A CN201210281652A CN103576707A CN 103576707 A CN103576707 A CN 103576707A CN 201210281652 A CN201210281652 A CN 201210281652A CN 103576707 A CN103576707 A CN 103576707A
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- China
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- circuit module
- control circuit
- transducing head
- level controller
- transmitting
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Abstract
The invention discloses a liquid level controller suitable for various environments. The liquid level controller suitable for various environments comprises a transmitting circuit module, a transmitting transduction device, a receiving transduction device, a receiving circuit module, a control circuit module and an external display device, wherein the output end of the transmitting circuit module is connected with the input end of the transmitting transduction device, the transmitting transduction device is in wireless connection with the receiving transduction device through ultrasonic waves, the output end of the receiving transduction device is connected with the input end of the receiving circuit module, and the receiving circuit module is connected with the external display device through the control circuit module. The liquid level controller suitable for various environments can be widely applied to various liquid level control situations, such as oil tanks and water pumps, particularly can be used in high-temperature or high-pressure or inflammable or rainy and snowy environments, is high in durability, and is accurate in measurement data.
Description
Technical field
The present invention relates to a kind of fluid level controller, more relate to a kind of fluid level controller that is applicable to multiple environment.
Background technology
The fluid level controller adopting at present, is generally that float-type, detecting and linker measure, and these modes tend to occur that durability degree is not high, the inaccurate situation of measurement data in inflammable, high temperature, high pressure or sleet environment.
Summary of the invention
Object of the present invention provides a kind of fluid level controller that is applicable to multiple environment with regard to being in order to address the above problem
The present invention is achieved through the following technical solutions above-mentioned purpose:
The present invention includes radiating circuit module, transmitting transducing head, receive transducing head, receiving circuit module, control circuit module and external connection display apparatus, the output terminal of described radiating circuit module is connected with the input end of described transmitting transducing head, between described transmitting transducing head and described reception transducing head, by ultrasonic wireless, be connected, the output terminal of described reception transducing head is connected with the input end of described receiving circuit module, and described receiving circuit module is connected with described external connection display apparatus by described control circuit module.
Described control circuit module, comprise triode, slide rheostat and diode, the emitter of described triode is connected with the electrode input end of described control circuit module, the base stage of described triode and collector are in parallel with described slide rheostat, the positive pole of described diode is connected with the base stage of described triode, and the negative pole of described diode is connected with the negative input of described control circuit module.
Further, described control circuit module, also comprise the first electric capacity, the second electric capacity and resistance, described the first electric capacity is in parallel with the both positive and negative polarity input end of described control circuit module, described the second electric capacity and described control circuit module both positive and negative polarity output terminal in parallel, the two ends of described resistance connect respectively base stage and the collector of described triode.
Beneficial effect of the present invention is:
The present invention can be widely used in various liquid levels and control, and as oil tank, water pump etc., particularly can in high temperature, high pressure, inflammable or sleet environment, use, and durability degree is high, and measurement data is accurate.
Accompanying drawing explanation
Fig. 1 is overall circuit block diagram of the present invention;
Fig. 2 is the circuit diagram of controlling control circuit module in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, the present invention includes radiating circuit module, transmitting transducing head, receive transducing head, receiving circuit module, control circuit module and external connection display apparatus, the output terminal of described radiating circuit module is connected with the input end of described transmitting transducing head, between described transmitting transducing head and described reception transducing head, by ultrasonic wireless, be connected, the output terminal of described reception transducing head is connected with the input end of described receiving circuit module, and described receiving circuit module is connected with described external connection display apparatus by described control circuit module.
As shown in Figure 2, described control circuit module comprises triode BG, slide rheostat W and diode D, the emitter of triode BG is connected with the electrode input end of described control circuit module, the base stage of triode BG and collector are in parallel with slide rheostat W, the positive pole of diode D is connected with the base stage of triode BG, and the negative pole of diode D is connected with the negative input of described control circuit module.
As shown in Figure 2, described control circuit module also comprises the first capacitor C 1, the second capacitor C 2 and resistance R, the first capacitor C 1 is in parallel with the both positive and negative polarity input end of described control circuit module, the second capacitor C 2 and described control circuit module both positive and negative polarity output terminal in parallel, the two ends of resistance R are base stage and the collector of connecting triode BG respectively.
In conjunction with Fig. 1 and Fig. 2, in the course of work of the present invention, the electric signal being produced by radiating circuit module becomes ultrasonic signal by transmitting transducing head, constantly radiation in medium towards periphery, when liquid not yet will be launched transducing head and receive transducing head submergence, medium between them is air, and the signal that receives transducing head reception is not enough to promote the work of control circuit module after amplifying.Once liquid-immersed transmitting transducing head and reception transducing head, receive signal and greatly strengthen, after amplifying, promote the work of control circuit module.
As shown in Figure 2, the inductance connecting three point type being formed by triode BG, it produces the sinusoidal wave oscillator signal of 113KH Z left and right, after resistance R current limliting, deliver to base stage and emitter and directly carry out half-wave rectification, then the collector at triode BG obtains half-wave amplifying signal, becomes smooth direct current signal remove to promote triode BG and work by the first capacitor C 1 and the second capacitor C 2 filtering.After receiving signal, by diode D, to triode BG, provide enough bias currents, by resistance R and adjusting slide rheostat W, can change the sensitivity of reception.
In order to prevent transmitting and receiving signal by electrical short and acoustic short circuit, must and receive transducing head to transmitting transducing head and carry out encapsulation process.In the situation that being used, normal temperature only need to and receive transducing head and cable pigtail is coated with lek and receives glue to transmitting transducing head, be noted that especially, in gluing process, should guarantee to make the surface of emission and the glue on receiving plane that are coated in transducing head not to produce bubble.After coating is all dry, put into water and soak one hour, with the insulation resistance between 500V megger measurement transducer outgoing cable two wires and a polar curve and water, more than 2M Ω, can use.
Claims (3)
1. a fluid level controller that is applicable to multiple environment, it is characterized in that: comprise radiating circuit module, transmitting transducing head, receive transducing head, receiving circuit module, control circuit module and external connection display apparatus, the output terminal of described radiating circuit module is connected with the input end of described transmitting transducing head, between described transmitting transducing head and described reception transducing head, by ultrasonic wireless, be connected, the output terminal of described reception transducing head is connected with the input end of described receiving circuit module, described receiving circuit module is connected with described external connection display apparatus by described control circuit module.
2. the fluid level controller that is applicable to multiple environment according to claim 1, it is characterized in that: described control circuit module, comprise triode, slide rheostat and diode, the emitter of described triode is connected with the electrode input end of described control circuit module, the base stage of described triode and collector are in parallel with described slide rheostat, the positive pole of described diode is connected with the base stage of described triode, and the negative pole of described diode is connected with the negative input of described control circuit module.
3. the fluid level controller that is applicable to multiple environment according to claim 2, it is characterized in that: described control circuit module, also comprise the first electric capacity, the second electric capacity and resistance, described the first electric capacity is in parallel with the both positive and negative polarity input end of described control circuit module, described the second electric capacity and described control circuit module both positive and negative polarity output terminal in parallel, the two ends of described resistance connect respectively base stage and the collector of described triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281652.8A CN103576707A (en) | 2012-08-09 | 2012-08-09 | Liquid level controller suitable for various environments |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281652.8A CN103576707A (en) | 2012-08-09 | 2012-08-09 | Liquid level controller suitable for various environments |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103576707A true CN103576707A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210281652.8A Pending CN103576707A (en) | 2012-08-09 | 2012-08-09 | Liquid level controller suitable for various environments |
Country Status (1)
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| CN (1) | CN103576707A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10161751A (en) * | 1996-12-04 | 1998-06-19 | Sony Corp | Liquid flow rate control method and device therefor |
| US5922030A (en) * | 1995-12-20 | 1999-07-13 | Nartron Corporation | Method and system for controlling a solid product release mechanism |
| CN101344764A (en) * | 2008-08-29 | 2009-01-14 | 霍振国 | Oil-water separation automatic measurement and control system of multi-purpose station free water remover |
| CN202306345U (en) * | 2011-11-03 | 2012-07-04 | 金菊华 | Water tower water level control device |
| CN202331223U (en) * | 2011-11-18 | 2012-07-11 | 成都思茂科技有限公司 | Ultrasonic liquid level controller |
| CN202815605U (en) * | 2012-08-09 | 2013-03-20 | 成都博课启睿科技有限公司 | Liquid level controller suitable for various environments |
-
2012
- 2012-08-09 CN CN201210281652.8A patent/CN103576707A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5922030A (en) * | 1995-12-20 | 1999-07-13 | Nartron Corporation | Method and system for controlling a solid product release mechanism |
| JPH10161751A (en) * | 1996-12-04 | 1998-06-19 | Sony Corp | Liquid flow rate control method and device therefor |
| CN101344764A (en) * | 2008-08-29 | 2009-01-14 | 霍振国 | Oil-water separation automatic measurement and control system of multi-purpose station free water remover |
| CN202306345U (en) * | 2011-11-03 | 2012-07-04 | 金菊华 | Water tower water level control device |
| CN202331223U (en) * | 2011-11-18 | 2012-07-11 | 成都思茂科技有限公司 | Ultrasonic liquid level controller |
| CN202815605U (en) * | 2012-08-09 | 2013-03-20 | 成都博课启睿科技有限公司 | Liquid level controller suitable for various environments |
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Application publication date: 20140212 |