CN2916585Y - Digital laminar flow meter - Google Patents
Digital laminar flow meter Download PDFInfo
- Publication number
- CN2916585Y CN2916585Y CN 200620039696 CN200620039696U CN2916585Y CN 2916585 Y CN2916585 Y CN 2916585Y CN 200620039696 CN200620039696 CN 200620039696 CN 200620039696 U CN200620039696 U CN 200620039696U CN 2916585 Y CN2916585 Y CN 2916585Y
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- China
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- laminar flow
- sensor
- flow element
- measurement
- pressure
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Abstract
The utility model relates to a digital layer flow meter, which comprises a layer flow component, a data collection system, and a data processing system. The product is characterized in that: the data collection and data processing systems comprise a sensor and a signal processing circuit, a data collection card, and an USB data line for communication with computer. The sensor comprises a pressure difference sensor for measuring the pressure difference of the layer flow component, an air pressure sensor, air humidity and temperature sensor, a pressure sensor for measuring the external environment, a temperature sensor, and circuit connecting the sensors. Apart from the air humidity and temperature sensor and the USB data line, the other parts are all placed in an instrument box. The positive effects of the utility model are: since the other parts are arranged in the instrument box, all sensors collect data and transmit the data to computer through the USB data line for real-time treatment and display the flow measuring results at real times for the convenience of users in result analysis. The measuring system is simple in structure, stable in performance, strong in utility, and convenient in use.
Description
Technical field
The utility model relates to a kind of measurement gas flow that is used for, and especially is used for measuring the digital laminar flow flowmeter of the average discharge of pulse pneumatic, belongs to the flow measurement instrument technical field.
Background technology
At present, be used for measuring the pulsed gas flow with general gas meter and laminar flow flowmeter.General gas meter can not directly be measured pulsating flow, need install a pressurizer tank that volume is enough big additional, but the existence of pressurizer tank makes measuring system complicated, and pressurizer tank also can change the gas flow characteristic, makes measuring accuracy reduce.And present laminar flow flowmeter separately carries out measurement and data processing, does not possess the real-time of measurement and the convenience of use.
Summary of the invention
The purpose of this utility model is that general gas meter measuring accuracy is low in order to overcome, measuring system is complicated and have the laminar flow flowmeter survey now and data processing is separately carried out, the shortcoming that does not possess the convenience of the real-time of measurement and use, a kind of measuring accuracy height, simple in structure is provided, not only can measure, store data in real time, and the digital laminar flow flowmeter that measurement result can be shown in real time.
Technical solutions of the utility model are: digital laminar flow flowmeter, it comprises laminar flow element, data acquisition, data handling system, be characterized in, described data acquisition, data handling system comprises sensor and signal processing circuit, data collecting card and with the usb data line of compunication, described sensor comprises the differential pressure pickup of measuring gas differential pressure before and after the laminar flow element, the pressure transducer of gaseous tension before the laminar flow element, the pressure transducer of measurement environment pressure, measure the temperature sensor of atmospheric temperature, measure the integral type Temperature Humidity Sensor of preceding gas temperature of laminar flow element and humidity; The treatment circuit of the Temperature Humidity Sensor of the pressure transducer of the temperature sensor of the pressure transducer of the differential pressure pickup of gas differential pressure and treatment circuit thereof, the preceding gaseous tension of measurement laminar flow element and treatment circuit thereof, measurement atmospheric temperature and treatment circuit thereof, measurement environment pressure and treatment circuit thereof and the preceding gas temperature of measurement laminar flow element, humidity all is placed in the instrument box before and after the measurement laminar flow element; Measuring the differential pressure pickup of laminar flow element front and back gas differential pressure, the pressure transducer of measuring the preceding gaseous tension of laminar flow element and the pressure transducer of measurement environment pressure is connected by flexible pipe and tested gas.
The beneficial effects of the utility model are: owing to do not have tangible radiating piece in the instrument box, sensor is placed in the instrument box can not influence measuring accuracy, so other sensors except that Temperature Humidity Sensor are arranged in the instrument box rationally, compactly, each sensor signal is after data collecting card is gathered, be sent in the computing machine by the usb communication line, processing signals in real time in computing machine, and sensor signal and measured flow results shown in real time, so that the customer analysis measurement result.Guaranteeing under the prerequisite of measuring accuracy like this, making the simple in structure of measuring system, stable performance, real-time and easy to use.
Description of drawings
Fig. 1 is digital laminar flow flowmeter instrument box arrangenent diagram;
Fig. 2 is the connection layout of sensor S1, S2, S3, S6 and laminar flow element.
Embodiment
By Fig. 1, shown in Figure 2, digital laminar flow flowmeter, it comprises laminar flow element, data acquisition, data handling system, be characterized in, the data acquisition data handling system comprises sensor and signal processing circuit, data collecting card and with the usb data line of compunication, described sensor comprises the differential pressure pickup 2 (S1) of measuring laminar flow element 1 front and back gas differential pressure, measure the pressure transducer 3 (S2) of the preceding gaseous tension of laminar flow element, measure laminar flow element 1 preceding gas temperature and humidity integral type Temperature Humidity Sensor 4 (S3, S6), measurement environment pressure transducer (S4), measure the temperature sensor (S5) of atmospheric temperature, the measurement result of Temperature Humidity Sensor 4 is used for tested gas is carried out temperature correction and humidity correction.Measure that the differential pressure pickup of gas differential pressure adopts Huba694.915025010 before and after the laminar flow element, the pressure transducer of measuring the pressure transducer of gaseous tension before the laminar flow element and measurement environment pressure is Honeywell ASDX015, measure the Temperature Humidity Sensor of gas humiture before the laminar flow element is that the temperature sensor of Honeywell HIH3602-C, measures ambient temperature is Honeywell HEL-777-A-U-0.The treatment circuit of the Temperature Humidity Sensor of the pressure transducer of the differential pressure pickup of gas differential pressure and treatment circuit thereof, the preceding gaseous tension of measurement laminar flow element and treatment circuit, measurement environment pressure transducer and treatment circuit thereof and measurement laminar flow element temperature, humidity all is placed in the instrument box before and after the measurement laminar flow element; The sensor and the measurement environment pressure transducer of the sensor of gas differential pressure, the preceding gaseous tension of measurement laminar flow element are connected by flexible pipe and tested gas before and after the measurement laminar flow element.The version of the laminar flow element that the utility model adopts is belt, and it is coincided by a corrugated metal strip and another flat-shaped metal tape and coiling spirally forms.
Claims (1)
1, a kind of digital laminar flow flowmeter, it comprises laminar flow element, data acquisition, data handling system, it is characterized in that, described data acquisition, data handling system comprises sensor and signal processing circuit, data collecting card and with the usb data line of compunication, described sensor comprises the differential pressure pickup of measuring gas differential pressure before and after the laminar flow element, measure the pressure transducer of the preceding gaseous tension of laminar flow element, the pressure transducer of measurement environment pressure, measure the temperature sensor of atmospheric temperature, measure the integral type Temperature Humidity Sensor of preceding gas temperature of laminar flow element and humidity; The treatment circuit of the Temperature Humidity Sensor of the temperature sensor of the pressure transducer of the pressure transducer of the differential pressure pickup of gas differential pressure and treatment circuit thereof, the preceding gaseous tension of measurement laminar flow element and treatment circuit thereof, measurement environment pressure and treatment circuit thereof, measurement atmospheric temperature and treatment circuit thereof and the preceding gas humidity of measurement laminar flow element, temperature all is placed in the instrument box before and after the measurement laminar flow element; Measuring the differential pressure pickup of laminar flow element front and back pressure reduction, the pressure transducer of measuring the preceding gaseous tension of laminar flow element and the pressure transducer of measurement environment pressure is connected by flexible pipe and tested gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039696 CN2916585Y (en) | 2006-02-23 | 2006-02-23 | Digital laminar flow meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620039696 CN2916585Y (en) | 2006-02-23 | 2006-02-23 | Digital laminar flow meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2916585Y true CN2916585Y (en) | 2007-06-27 |
Family
ID=38187500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620039696 Expired - Fee Related CN2916585Y (en) | 2006-02-23 | 2006-02-23 | Digital laminar flow meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2916585Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206995A (en) * | 2013-04-11 | 2013-07-17 | 西安拓普电气有限责任公司 | Air-flow measuring device and air-flow measuring method applicable to workshop conditions |
| CN105823517A (en) * | 2016-05-09 | 2016-08-03 | 西北工业大学 | Differential pressure linear flow meter |
| CN108332824A (en) * | 2018-03-09 | 2018-07-27 | 西安飞豹科技有限公司 | A kind of automobile-used gas flow calibration control system of aircraft air condition |
| US10801872B1 (en) | 2019-08-06 | 2020-10-13 | Surface Solutions Inc. | Methane monitoring and conversion apparatus and methods |
-
2006
- 2006-02-23 CN CN 200620039696 patent/CN2916585Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103206995A (en) * | 2013-04-11 | 2013-07-17 | 西安拓普电气有限责任公司 | Air-flow measuring device and air-flow measuring method applicable to workshop conditions |
| CN105823517A (en) * | 2016-05-09 | 2016-08-03 | 西北工业大学 | Differential pressure linear flow meter |
| CN105823517B (en) * | 2016-05-09 | 2019-05-10 | 西北工业大学 | The linear flowmeter of differential pressure |
| CN108332824A (en) * | 2018-03-09 | 2018-07-27 | 西安飞豹科技有限公司 | A kind of automobile-used gas flow calibration control system of aircraft air condition |
| US10801872B1 (en) | 2019-08-06 | 2020-10-13 | Surface Solutions Inc. | Methane monitoring and conversion apparatus and methods |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |