CN202720021U - Fully-isolated intelligent tuning fork material level transmitter - Google Patents
Fully-isolated intelligent tuning fork material level transmitter Download PDFInfo
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- CN202720021U CN202720021U CN 201220217664 CN201220217664U CN202720021U CN 202720021 U CN202720021 U CN 202720021U CN 201220217664 CN201220217664 CN 201220217664 CN 201220217664 U CN201220217664 U CN 201220217664U CN 202720021 U CN202720021 U CN 202720021U
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Abstract
The utility model discloses a fully-isolated intelligent tuning fork material level transmitter. The tuning fork material level transmitter comprises a power supply module, a CPU (Central Processing Unit) module, a state indicating module, an output control module, a sensitivity setting module, a driving module, a vibratory pickup module and a tuning fork body, and is characterized in that the tuning fork body consists of an induction bar, a driving crystal and a vibratory detection crystal; the CPU module is connected with the power supply module, the state indicating module, the output control module, the sensitivity setting module, the driving module and the vibratory pickup module respectively; the driving module is provided with a driving insolating transformer; and the vibratory pickup module is provided with a pickup isolating transformer. Due to the adoption of the tuning fork material level transmitter, the detection reliability and consistence can be enhanced, and vibration stop or error reporting is avoided; and the fully-isolated intelligent tuning fork material level transmitter has the advantages of easiness in manufacturing, stable performance and isolating reliability.
Description
Technical field
The utility model relates to the level gauging technical field, relates in particular to a kind of fully-isolated intelligent tuning fork level message reporting device.
Background technology
At present, in the level gauging technical field, the height that level gauging is often referred to material in closed in the industrial processes or the open container (solid or liquid level) detects, if height of materials is carried out continuous detection, be called continuous coverage, if only whether height of materials is arrived a certain position detect and be called spacing measurement, the instrument of finishing this measurement task is called level meter.Tuning fork level message reporting device is also referred to as tuning fork type level meter or tuning-fork type level controller, it is to utilize the principle design of tuning fork vibration to make, and its principle of work is by a pair of piezoelectric chip that is installed on the tuning fork pedestal tuning fork to be vibrated under certain resonant frequency; When tuning fork contacts with measured medium, the frequency of tuning fork and amplitude will change, these variations are detected by smart circuit, process and convert it to a switching signal, so when material contacts with inductive rod, the vibration signal diminishes gradually, until when stopping to resonate, control circuit can be exported the electric terminal signal.
Because tuning fork level message reporting device is not subjected to the impact of foam, eddy current, gas, the fixed point that is applicable to liquid level in various feed bin solid-material levels and the various container is reported to the police or control.Be fit to be used in pressed powder or the particle of the free-pouring intermediate density of energy, such as flyash, cement, sand, stone flour, plastic grain, salt, sugar etc.Be fit to be applicable to liquid medium, as has the liquid of explosive and non-explosivity danger, corrosive liquids (acid, alkali) high viscosity liquid water, acid, alkali, mud, paper pulp, dyestuff, oils, milk, drinks, beverage etc. have very wide application scenario.
But there is the problem of failure of oscillation and wrong report in the tuning fork level message reporting device in the prior art scheme, the appearance of these problems mainly is to have on the circuit design due to some defectives, specifically existing circuit design will drive crystal, stube cable, driving transformer, driving circuit, oscillatory circuit, the parts such as vibration detection crystal and detection amplifying circuit are as a system, each several part is effectively isolation and reliability design not, just return failure of oscillation or the wrong report that causes system in case the line in the system or device parameters change, the reliability of testing is reduced, consistance is relatively poor.
Summary of the invention
The purpose of this utility model provides a kind of fully-isolated intelligent tuning fork level message reporting device, can improve detecting reliability and consistance, avoids failure of oscillation or wrong report, has to make simple, stable performance, the reliable advantage of isolation.
The purpose of this utility model is achieved through the following technical solutions, a kind of fully-isolated intelligent tuning fork level message reporting device, described tuning fork level message reporting device comprises that power module, CPU module, state indicating module, output control module, sensitivity arrange module, driver module, vibration and picks up module, tuning fork body, wherein:
Described tuning fork body by inductive rod, drive crystal, vibration detection crystal composition, described CPU module arranges module, driver module and vibration with power module, state indicating module, output control module, sensitivity respectively and is connected module and is connected;
Be provided with the driving isolation transformer at described driver module, and pick up module in described vibration and be provided with and pick up isolating transformer.
Driving isolation transformer on the described driver module is connected with driving crystal on the described tuning fork body.
The isolating transformer of picking up that described vibration is picked up on the module is connected with vibration detection crystal on the described tuning fork body.
CPU inside solidification on the described CPU module has embedded software program.
Can be found out by the technical scheme that above-mentioned the utility model provides, this tuning fork level message reporting device comprises that power module, CPU module, state indicating module, output control module, sensitivity arrange module, driver module, vibration and picks up module, tuning fork body, wherein said tuning fork body by inductive rod, drive crystal, vibration detection crystal composition, described CPU module arranges module, driver module and vibration with power module, state indicating module, output control module, sensitivity respectively and is connected module and is connected; Be provided with the driving isolation transformer at described driver module, and pick up module in described vibration and be provided with and pick up isolating transformer.Just can improve detecting reliability and consistance by this tuning fork level message reporting device, avoid failure of oscillation or wrong report, have and make simple, stable performance, the reliable advantage of isolation.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skill in the art, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The structural representation of the fully-isolated intelligent tuning fork level message reporting device that Fig. 1 provides for the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills belong to protection domain of the present utility model not making the every other embodiment that obtains under the creative work prerequisite.
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail, be illustrated in figure 1 as the structural representation of the fully-isolated intelligent tuning fork level message reporting device that the utility model embodiment provides, comprise among Fig. 1: 1. power module, 2.CPU module, 3. state indicating module, 4. output control module, 5. sensitivity arranges module, and 6. driver module 7. vibrates and picks up module, 8. tuning fork body, wherein:
Described tuning fork body 8 by inductive rod 81, drive crystal 82, vibration detection crystal 83 forms, described CPU module 2 arranges module 5, driver module 6 with power module 1, state indicating module 3, output control module 4, sensitivity respectively and is connected module 7 with vibration and is connected;
Be provided with driving isolation transformer 61 at described driver module 6, and pick up module 7 in described vibration and be provided with and pick up isolating transformer 71.
In addition, the driving isolation transformer 61 on the driver module 6 is connected with driving crystal 81 on the described tuning fork body 8.
The isolating transformer 71 of picking up that vibration is picked up on the module 7 is connected with vibration detection crystal 83 on the described tuning fork body 8.
CPU inside solidification on the above-mentioned CPU module 2 has embedded software program, can realize the intellectuality of tuning fork.
In specific implementation, above-mentioned power module 1 is designed with electromagnetic compatibility circuit and buffer circuit, can make remote power feeding circuit and power circuit of the present utility model realize physical isolation, has avoided the interference of feed circuit directly to scurry into power circuit.
The specific works process of above-mentioned each module is: state indicating module 3 can intuitively show tuning fork duty or failure cause, and it is intelligent to realize that self diagnosis shows; Output control module 4 can realize externally controlling function, and sensitivity arranges module can satisfy detection demand to various density and form material.
The driving signal that driver module 6 can produce CPU is transported to driving crystal 82 through driving driving isolation transformer 61, driven the vibration of inductive rod 81 by the vibration that drives crystal 82, this vibration is picked up by vibration detection crystal 83, be transported to the amplifying circuit that module 7 is picked up in vibration through picking up isolating transformer 71 again, signal after the amplification is given CPU module 2 at last, and by program intelligent decision tuning fork duty.
In sum, the described tuning fork level message reporting device of the utility model embodiment can improve detecting reliability and consistance, avoids failure of oscillation or wrong report, has to make simple, stable performance, the reliable advantage of isolation.
The above; it only is the better embodiment of the utility model; but protection domain of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. fully-isolated intelligent tuning fork level message reporting device, it is characterized in that, described tuning fork level message reporting device comprises that power module, CPU module, state indicating module, output control module, sensitivity arrange module, driver module, vibration and picks up module, tuning fork body, wherein:
Described tuning fork body by inductive rod, drive crystal, vibration detection crystal composition, described CPU module arranges module, driver module and vibration with power module, state indicating module, output control module, sensitivity respectively and is connected module and is connected;
Be provided with the driving isolation transformer at described driver module, and pick up module in described vibration and be provided with and pick up isolating transformer.
2. fully-isolated intelligent tuning fork level message reporting device as claimed in claim 1 is characterized in that,
Driving isolation transformer on the described driver module is connected with driving crystal on the described tuning fork body.
3. fully-isolated intelligent tuning fork level message reporting device as claimed in claim 1 is characterized in that,
The isolating transformer of picking up that described vibration is picked up on the module is connected with vibration detection crystal on the described tuning fork body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217664 CN202720021U (en) | 2012-05-07 | 2012-05-07 | Fully-isolated intelligent tuning fork material level transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220217664 CN202720021U (en) | 2012-05-07 | 2012-05-07 | Fully-isolated intelligent tuning fork material level transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202720021U true CN202720021U (en) | 2013-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220217664 Expired - Lifetime CN202720021U (en) | 2012-05-07 | 2012-05-07 | Fully-isolated intelligent tuning fork material level transmitter |
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| Country | Link |
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| CN (1) | CN202720021U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110226079A (en) * | 2016-12-14 | 2019-09-10 | 恩德莱斯和豪瑟尔欧洲两合公司 | Fail-safe limit switch |
-
2012
- 2012-05-07 CN CN 201220217664 patent/CN202720021U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110226079A (en) * | 2016-12-14 | 2019-09-10 | 恩德莱斯和豪瑟尔欧洲两合公司 | Fail-safe limit switch |
| US11099053B2 (en) | 2016-12-14 | 2021-08-24 | Endress+HauserSE+Co. KG | Fail-safe limit level switch |
| CN110226079B (en) * | 2016-12-14 | 2021-10-19 | 恩德莱斯和豪瑟尔欧洲两合公司 | Failure safety limit switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181026 Address after: 100013 Hepingli North Street, Dongcheng District, Beijing 6 Patentee after: Beijing Far East Instrument Co., Ltd. Address before: 100011 16 ande Road, Dongcheng District, Beijing Patentee before: Beijing Jing Yi-HIFOR Automation Instrument Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |