CN204064316U - A kind of flow collection system based on flow measurement device - Google Patents
A kind of flow collection system based on flow measurement device Download PDFInfo
- Publication number
- CN204064316U CN204064316U CN201420417285.4U CN201420417285U CN204064316U CN 204064316 U CN204064316 U CN 204064316U CN 201420417285 U CN201420417285 U CN 201420417285U CN 204064316 U CN204064316 U CN 204064316U
- Authority
- CN
- China
- Prior art keywords
- module
- resistance
- signal
- schmidt trigger
- flow
- 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.)
- Expired - Lifetime
Links
- 238000005259 measurement Methods 0.000 title claims abstract description 21
- 230000003321 amplification Effects 0.000 claims abstract description 22
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 22
- 238000007493 shaping process Methods 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims abstract description 4
- 230000001419 dependent effect Effects 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a kind of flow collection system based on flow measurement device, comprises flow collection module, signal amplification module and filter shape module; Described flow collection module acquires signal imports described filter shape module into after described signal amplification module amplifies, and the output signal of described filter shape module is sent to flow measurement device main control module; Wherein, described filter shape module comprises the first Schmidt trigger, the second Schmidt trigger, the 3rd Schmidt trigger and removes half wave shaping circuit for half interference wave signal is born in the interchange in signal.Described filter shape module adopts Schmidt trigger and half wave shaping circuit to carry out filter shape to the signal that Roots type flowmeter sensor collects, there is stronger antijamming capability, thus provide more accurate, stable signal for flow measurement device main control module.
Description
Technical field
The utility model relates to flow measurement technology field, particularly relates to a kind of flow collection system based on flow measurement device.
Background technology
In prior art, when the signal transacting of sensor, because the output signal of sensor is very faint, only have tens millivolts, what have even only has tens microvolts, therefore need to amplify signal, the process such as shaping, current flux measuring apparatus singly limits comparer for the many employings of shaping of signal, and the antijamming capability of the method is limited, thus cause various undesired signal removal ability poor, remove endless, or useful signal is also removed, or remove useful signal reservation undesired signal.
Utility model content
For solving the problem of existing flow sensor signal treatment circuit poor anti jamming capability while signal amplifies shaping, the utility model provides a kind of flow collection system based on flow measurement device.
Comprise flow collection module, signal amplification module and filter shape module, described flow collection module acquires signal imports described filter shape module into after described signal amplification module amplifies, and the output signal of described filter shape module is sent to flow measurement device main control module.
Wherein, described filter shape module comprises the first Schmidt trigger, the second Schmidt trigger, the 3rd Schmidt trigger and half wave shaping circuit for the interchange in signal being born half interference wave signal removal.
The input end of described first Schmidt trigger is connected with described signal amplification module, the output terminal of described first Schmidt trigger is connected with described half wave shaping circuit, and described half wave shaping circuit is connected with flow measurement device main control module by the second Schmidt trigger, the 3rd Schmidt trigger.
Further, described flow sensor is the Roots type flowmeter sensor adopting impeller magnet and zero power consumptive magneto-dependent sensor composition.
Further, described signal amplification module comprises: the first resistance, the second resistance, the first diode, triode, and described second resistance, the first resistance, diode head and the tail connect, and the base stage of the positive and negative electrode of diode difference connecting triode and emitter.
First resistance and the second resistance are for determining the signal amplification factor of described signal amplification module, and this enlargement factor is the ratio of the first resistance and the second resistance.
The signal that triode is used for described flow sensor to spread out of amplifies;
Diode is used for circuit overcurrent protection.
Further, described half wave shaping circuit comprises the second diode, the 3rd resistance and the first electric capacity.
The positive pole of described second diode is connected with the output terminal of the first Schmidt trigger, and the negative pole of described second diode is connected with the input end of the second Schmidt trigger;
Described 3rd resistance and the first electric capacity are connected in parallel between ground wire and the second diode cathode.
The utility model has following beneficial effect:
The utility model adopts Schmidt trigger and half wave shaping circuit to carry out filter shape to the signal that Roots type flowmeter sensor collects, and has stronger antijamming capability, thus provides more accurate, stable signal for flow measurement device main control module.
Accompanying drawing illustrates:
Fig. 1 is circuit block diagram of the present utility model.
Fig. 2 is the circuit diagram of signal amplification module and filter shape module.
Wherein, 1 is flow sensor module; 2 is signal amplification module; 3 is filter shape module.
Embodiment
Below in conjunction with test example and embodiment, the utility model is described in further detail.But this should be interpreted as that the scope of the above-mentioned theme of the utility model is only limitted to following embodiment, all technology realized based on the utility model content all belong to scope of the present utility model.
As shown in Figure 1 and Figure 2, the present embodiment provides a kind of flow collection system based on flow measurement device.
Comprise flow collection module 1, signal amplification module 2 and filter shape module 3, the signal that flow collection module 1 gathers imports filter shape module 3 into after signal amplification module 2 amplifies, and the output signal of filter shape module 3 is sent to flow measurement device main control module.
Wherein, filter shape module 3 comprise the first Schmidt trigger, the second Schmidt trigger, the 3rd Schmidt trigger and,
For the interchange in signal being born half wave shaping circuit that half interference wave signal is removed.
The present embodiment actual employing Schmidt trigger chip HEF4093BT, this chip includes four groups of respective independently Schmidt triggers (actual use wherein three groups) altogether, as shown in Figure 2, the input end 1A of the first Schmidt trigger, 1B is connected with described signal amplification module, the output terminal 1Y of described first Schmidt trigger is connected with described half wave shaping circuit, the input end 2A of described half wave shaping circuit output signal input second Schmidt trigger, 2B, the output terminal 2Y of the second Schmidt trigger connects the input end 3A of the 3rd Schmidt trigger, 3B, signal after shaping is sent to flow measurement device main control module by the output terminal 3Y of the 3rd Schmidt trigger.
Described flow sensor is the Roots type flowmeter sensor adopting impeller magnet and zero power consumptive magneto-dependent sensor composition.
As shown in Figure 2, described signal amplification module comprises:
First resistance R1, the second resistance R2, the first diode D1, triode Q1, described second resistance R2, the first resistance R1, the first diode D1 head and the tail connect, and the base stage of the positive and negative electrode of the first diode D1 difference connecting triode and emitter, the two ends of the second resistance R2 connect two output terminals of described flow collection module respectively;
The signal that triode Q1 is used for flow sensor to spread out of amplifies;
Diode D1 is used for circuit overcurrent protection.
Further, described half wave shaping circuit comprises diode D2, the 3rd resistance R3 and the first electric capacity C1;
The positive pole of described diode D2 is connected with the output terminal Y1 of the first Schmidt trigger, and the negative pole of described diode is connected with input end 2A, 2B of the second Schmidt trigger.
Described 3rd resistance R3 and the first electric capacity C1 is connected in parallel between ground wire and diode cathode.
The utility model has following beneficial effect:
The utility model adopts Schmidt trigger and half wave shaping circuit to carry out filter shape to the signal that Roots type flowmeter sensor collects, and has stronger antijamming capability, thus provides more accurate, stable signal for flow measurement device main control module.
Claims (4)
1. based on a flow collection system for flow measurement device, it is characterized in that, comprise flow collection module, signal amplification module and filter shape module;
Described flow collection module acquires signal imports described filter shape module into after described signal amplification module amplifies, and the output signal of described filter shape module is sent to flow measurement device main control module;
Wherein, described filter shape module comprises the first Schmidt trigger, the second Schmidt trigger, the 3rd Schmidt trigger and half wave shaping circuit for the interchange in signal being born half interference wave signal removal;
The input end of described first Schmidt trigger is connected with described signal amplification module, the output terminal of described first Schmidt trigger is connected with described half wave shaping circuit, and described half wave shaping circuit is connected with flow measurement device main control module by the second Schmidt trigger, the 3rd Schmidt trigger.
2. the flow collection system based on flow measurement device according to claim 1, it is characterized in that, described flow collection module comprises interface module and flow sensor, and described flow sensor is the Roots type flowmeter sensor adopting impeller magnet and zero power consumptive magneto-dependent sensor composition.
3. the flow collection system based on flow measurement device according to claim 1, is characterized in that, described signal amplification module comprises:
First resistance, the second resistance, the first diode, triode, described second resistance, the first resistance, the first diode head and the tail connect, and the base stage of the positive and negative electrode of the first diode difference connecting triode and emitter, the two ends of the second resistance connect two output terminals of described flow collection module respectively;
First resistance and the second resistance are for determining the signal amplification factor of described signal amplification module, and this enlargement factor is the ratio of the first resistance and the second resistance;
First resistance and the second resistance, for determining the signal amplification factor of described signal amplification module, this enlargement factor is the first resistance/the second resistance;
The signal that triode is used for described flow sensor module to spread out of amplifies;
Diode, for circuit overcurrent protection.
4. the flow collection system based on flow measurement device according to claim 1, is characterized in that, described half wave shaping circuit comprises the second diode, the 3rd resistance and the first electric capacity;
The positive pole of described second diode is connected with the output terminal of the first Schmidt trigger, and the negative pole of described second diode is connected with the input end of the second Schmidt trigger;
Described 3rd resistance and the first electric capacity are connected in parallel between ground wire and the second diode cathode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417285.4U CN204064316U (en) | 2014-07-28 | 2014-07-28 | A kind of flow collection system based on flow measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420417285.4U CN204064316U (en) | 2014-07-28 | 2014-07-28 | A kind of flow collection system based on flow measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204064316U true CN204064316U (en) | 2014-12-31 |
Family
ID=52205807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420417285.4U Expired - Lifetime CN204064316U (en) | 2014-07-28 | 2014-07-28 | A kind of flow collection system based on flow measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204064316U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075738A (en) * | 2014-07-28 | 2014-10-01 | 成都千嘉科技有限公司 | Flow collection system based on flow metering device |
-
2014
- 2014-07-28 CN CN201420417285.4U patent/CN204064316U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075738A (en) * | 2014-07-28 | 2014-10-01 | 成都千嘉科技有限公司 | Flow collection system based on flow metering device |
| CN104075738B (en) * | 2014-07-28 | 2016-06-08 | 成都千嘉科技有限公司 | A kind of flow collection system based on flow measurement device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201955387U (en) | Zero-crossing detecting circuit with low power consumption for carrier wave communication | |
| CN204064316U (en) | A kind of flow collection system based on flow measurement device | |
| CN103163547A (en) | Test system of flow intensity of high-energy electron beam | |
| CN204028204U (en) | A kind of Rogowski coil current sensor with high-power output interface | |
| CN104155508A (en) | Signal current detection device and method of OLED CELL detection equipment | |
| CN104198799A (en) | Phase current detection circuit for high-frequency dedusting power supply | |
| CN203968060U (en) | A kind of sample circuit for photovoltaic combiner box | |
| CN104075738B (en) | A kind of flow collection system based on flow measurement device | |
| CN204008832U (en) | A kind of sampling A/D chip and the sample circuit of built-in AD to same passage of measuring | |
| CN203337781U (en) | Power supply detection circuit, power supply circuit and electronic equipment | |
| CN204241556U (en) | A kind of 220VAC load current detection circuit | |
| CN104374995A (en) | 220 VAC load current detecting circuit | |
| CN103869863B (en) | Sensor conditioning circuit | |
| CN204101618U (en) | A kind of Acquisition Circuit of high-frequency dust removing electric power outputting current | |
| CN204203808U (en) | A kind of temperature control system for industrial furnace | |
| CN106357264A (en) | Small signal amplifying measurement circuit | |
| CN209878964U (en) | Current acquisition circuit of storage battery | |
| CN204116433U (en) | A kind of phase current sensing circuit of high-frequency dust removing power supply | |
| CN205301898U (en) | Novel portable signal acquisition device | |
| CN205789723U (en) | A kind of relay test protection circuit | |
| CN204065209U (en) | A kind of electric current isolation detection circuit | |
| CN203293498U (en) | Injection molding machine and multisection temperature signal measuring circuit thereof | |
| CN104660225A (en) | Nuclear pulse peak value holding circuit | |
| CN203504144U (en) | Electric leakage sampling circuit | |
| CN204988341U (en) | Can realize multiple sensor signal measuring circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 536, Section 1, airport 1st Road, Shuangliu Southwest Airport, Chengdu, Sichuan 610211 Patentee after: Chengdu Qianjia Technology Co.,Ltd. Address before: No. 536, Section 1, airport 1st Road, Shuangliu Southwest Airport, Chengdu, Sichuan 610211 Patentee before: Chengdu Qianjia Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141231 |
|
| CX01 | Expiry of patent term |