CN203908607U - Coriolis mass flowmeter transmitter with dual paths of temperature acquisition - Google Patents
Coriolis mass flowmeter transmitter with dual paths of temperature acquisition Download PDFInfo
- Publication number
- CN203908607U CN203908607U CN201420239748.2U CN201420239748U CN203908607U CN 203908607 U CN203908607 U CN 203908607U CN 201420239748 U CN201420239748 U CN 201420239748U CN 203908607 U CN203908607 U CN 203908607U
- Authority
- CN
- China
- Prior art keywords
- temperature
- mass flowmeter
- coriolis mass
- temperature measuring
- flowmeter transmitter
- 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 - Fee Related
Links
Landscapes
- Details Of Flowmeters (AREA)
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a Coriolis mass flowmeter transmitter with dual paths of temperature acquisition. The Coriolis mass flowmeter transmitter with dual paths of temperature acquisition is composed of a safety barrier, a detection circuit, a drive circuit, a microprocessor, a ferroelectric memory, a keyboard, an analogue output circuit, an RS485 digital communication module and a display; the Coriolis mass flowmeter transmitter with dual paths of temperature acquisition is characterized by comprising two temperature measuring circuits; the input ends of the two temperature measuring circuits both are connected with the output end of the existing safety barrier, while the output ends of the two temperature measuring circuits both are connected with the input end of the existing microprocessor. The two temperature measuring circuits are used for measuring the temperatures of both of the inlet and the outlet of a sensor, and compensating the flow and the density by use of the temperatures of the inlet and the outlet. The utility model relates to the Coriolis mass flowmeter transmitter.
Description
Technical field
The utility model relates to coriolis mass flowmeters, particularly relates to the improvement of coriolis mass flowmeters structure of transmitter.
Background technology
Coriolis mass flowmeters is in occasion widespread uses such as the detection of the industry technological processs such as oil, petrochemical industry, chemical industry, pharmacy, papermaking, food and the energy and trade transaction meterings.Coriolis mass flowmeters is comprised of mass flow sensor and mass flow transmitter, is connected between the two by connecting line (one mount type) or stube cable (partial installation type).Coriolis mass flowmeters transmitter is by safety barrier, testing circuit, driving circuit, one road temperature measuring circuit, microprocessor, ferroelectric memory, keyboard, analog output circuit, RS485 digital communication module and a display form, the two-way sinusoidal signal that the left coil that reception is transmitted by mass flow meter sensor and right coil produce, there is corresponding testing circuit to amplify signal, filtering, shaping, by the corresponding mass flow measurement result of calculating of microprocessor, simultaneously, after the detection and amplification of the sine wave signal that left coil is transmitted by driving circuit, be sent to drive coil, the flowmeter sensor of ensuring the quality of products is operated in normal duty, meanwhile, two PT100 temperature sensors are arranged on respectively the import and export two ends of mass flow meter sensor, and mass flowmeter transmitter coordinates temperature measuring circuit to obtain sensor temperature data by temperature sensor.In addition, mass flowmeter transmitter also comprises the parameter that a storer comes storage of measurement data and user to set, a keyboard receives user's input, the analog output module of electric current loop that comprises 4～20mA and impulse output circuit, a RS485 digital communication module and a liquid crystal display device module.
Along with the further expansion of commercial production scale, for the requirement of accurate measurement also in further raising.But, mass flow transmitter now only has a road temperature sensing circuit, mass flowmeter also can only gather the temperature signal on a road, and the temperature of importing and exporting has certain difference, and increase along with the expansion of pressure reduction, so gather the temperature characterisitic that a road temperature signal can not well react whole sensor, this just makes the precision of mass flowmeter further not promote.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the utility model provides section's formula mass flowmeter transmitter of improved a kind of two-way temperature acquisition, and the temperature of can pick-up transducers importing and exporting is carried out analyzing and processing.
The technical solution of the utility model is, on the basis of original structure of transmitter, to increase the identical temperature measuring circuit of a line structure.Section's formula mass flowmeter transmitter of two-way temperature acquisition, by safety barrier, testing circuit, driving circuit, microprocessor, ferroelectric memory, keyboard, analog output circuit, RS485 digital communication module and a display form, and it is characterized in that there is two-way temperature measuring circuit, the input end of two-way temperature measuring circuit is all connected with the output terminal of original safety barrier, and its output terminal is all connected with the input end of original microprocessor.
The utility model has two-way temperature measuring circuit, because general section formula mass flowmeter only has a road temperature acquisition, when doing temperature compensation, only gathering inlet temperature compensates, how much like this can cause error, so the utility model adopts two-way temperature acquisition to compensate simultaneously, the accuracy of flow and densitometry just can improve like this.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is coriolis mass flowmeters structural representations of two-way temperature acquisition.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
As shown in Figure 1, a kind of section's formula mass flowmeter transmitter of two-way temperature acquisition, by safety barrier 1, driving circuit 3, temperature measuring circuit 4, temperature measuring circuit 5, microprocessor 6, ferroelectric memory 7, keyboard 8, analog output circuit 9, RS485 digital communication module 10 and a display 11 form.The input end of two-way temperature measuring circuit all with the output terminal of original safety barrier is connected, and its output terminal is all connected with the input end of original microprocessor.
Mass flowmeter transmitter receives signal from the temperature sensor of the entrance end of mass flow meter sensor, the temperature that calculates respectively import and export by temperature measuring circuit 4 and temperature measuring circuit 5 then compensates the temperature characterisitic of sensor by temperature compensation algorithm in microprocessor.
The utility model is applicable to being applied in to be imported and exported on section's formula mass flowmeter that two ends pressure reduction is larger.When pressure reduction is larger, the temperature difference of importing and exporting two ends can be larger, if only by the temperature of measuring a road, sensor is carried out to temperature compensation by the temperature on an independent road, can cause certain error to measuring; And the utility model has adopted two-way temperature acquisition, exactly solved this problem, the pressure of importing and exporting is all measured, by these two temperature, sensor is compensated, can improve like this precision of coriolis mass flowmeters.
Claims (1)
1. section's formula mass flowmeter transmitter of two-way temperature acquisition, by safety barrier, testing circuit, driving circuit, microprocessor, ferroelectric memory, keyboard, analog output circuit, RS485 digital communication module and a display form, and it is characterized in that there is two-way temperature measuring circuit, the input end of two-way temperature measuring circuit is all connected with the output terminal of original safety barrier, and its output terminal is all connected with the input end of original microprocessor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239748.2U CN203908607U (en) | 2014-05-12 | 2014-05-12 | Coriolis mass flowmeter transmitter with dual paths of temperature acquisition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239748.2U CN203908607U (en) | 2014-05-12 | 2014-05-12 | Coriolis mass flowmeter transmitter with dual paths of temperature acquisition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203908607U true CN203908607U (en) | 2014-10-29 |
Family
ID=51782870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239748.2U Expired - Fee Related CN203908607U (en) | 2014-05-12 | 2014-05-12 | Coriolis mass flowmeter transmitter with dual paths of temperature acquisition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203908607U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346006A (en) * | 2019-08-13 | 2019-10-18 | 上海一诺仪表有限公司 | A kind of mass flowmenter transmitter and mass flowmenter |
-
2014
- 2014-05-12 CN CN201420239748.2U patent/CN203908607U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110346006A (en) * | 2019-08-13 | 2019-10-18 | 上海一诺仪表有限公司 | A kind of mass flowmenter transmitter and mass flowmenter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2453931C1 (en) | Improved temperature compensation of multivariate pressure gage | |
| CN102032974B (en) | Temperature compensation method for pressure sensor | |
| CA2633792C (en) | Wet gas indication using a process fluid differential pressure transmitter | |
| CN202471159U (en) | Gas metering device | |
| CN105403265A (en) | Automatic zero drift-correction ultrasound water meter and correction method | |
| CN102538914B (en) | Electronic water meter with correction function | |
| CN206311166U (en) | Absolute pressure formula liquid level gauge | |
| CN203224283U (en) | Liquid flow field calibration device | |
| CN104266718A (en) | Automatically-calibrated ultrasonic liquid level measuring system | |
| CN203908607U (en) | Coriolis mass flowmeter transmitter with dual paths of temperature acquisition | |
| CN103206997A (en) | Gas Roots flow measuring device and flow correction method for same | |
| US10605634B2 (en) | Taper pipe-shaped area flow meter using magnetostrictive distance measurement | |
| CN105973322A (en) | Temperature and pressure integrated pitot tube flowmeter | |
| CN201335718Y (en) | Bubble-type water gauge | |
| CN204165597U (en) | For the echoed signal modulate circuit of flow quantity detecting system | |
| CN204461518U (en) | A kind of heating type turbine integral type flowmeter | |
| CN103278206A (en) | Measuring instrument for measuring gas production of sealed container | |
| CN209117096U (en) | A kind of low-consumption ultrasonic flow measurement meter | |
| CN204085583U (en) | Portable orifice-plate measuring instrument | |
| CN103383276A (en) | Ultrasonic flow rate detection system | |
| CN107036759B (en) | Manometer normal position metrological calibrating installation | |
| CN204214517U (en) | A kind of ultrasonic liquid level measuring system having automatic calibration function | |
| CN105222866A (en) | A kind of condenser type intelligent boiler liquid level of steam drum meter | |
| CN202119841U (en) | Intelligent sensing transmitter for oil field slurry conductivity | |
| CN204202664U (en) | Ultrasonic flow meter temperature-compensation circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141029 Termination date: 20210512 |