WO2010013360A1 - 流量計における温度計測回路 - Google Patents
流量計における温度計測回路 Download PDFInfo
- Publication number
- WO2010013360A1 WO2010013360A1 PCT/JP2008/069078 JP2008069078W WO2010013360A1 WO 2010013360 A1 WO2010013360 A1 WO 2010013360A1 JP 2008069078 W JP2008069078 W JP 2008069078W WO 2010013360 A1 WO2010013360 A1 WO 2010013360A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- resistance
- voltage
- sensor
- measurement
- meter
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/02—Compensating or correcting for variations in pressure, density or temperature
- G01F15/022—Compensating or correcting for variations in pressure, density or temperature using electrical means
- G01F15/024—Compensating or correcting for variations in pressure, density or temperature using electrical means involving digital counting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8431—Coriolis or gyroscopic mass flowmeters constructional details electronic circuits
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8436—Coriolis or gyroscopic mass flowmeters constructional details signal processing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/86—Indirect mass flowmeters, e.g. measuring volume flow and density, temperature or pressure
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
- G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
- G01K7/20—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit
- G01K7/206—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer in a specially-adapted circuit, e.g. bridge circuit in a potentiometer circuit
Definitions
- This relates to the measurement path in the flowmeter.
- Rio meter when the constant tube where the body flows is supported at the end, and this held constant tube is moved in a direction perpendicular to the support, it is placed between the holding portion of the measurement tube and the center. Mass meter that detects a phase signal proportional to mass.
- the tube is made of a material that has a Young's modulus that varies with temperature. Therefore, in order to maintain the degree, it is necessary to measure the degree of the measuring tube and compensate for the change in Young's modulus as the degree is reduced.
- V-interchanger 6 For V-interchanger 6, for example, this wave number output is expressed by the following equation. V3 R 2
- the output of OUT 20g R8 R0 C 6 is determined by the ratio to the resistance, so the resistance and resistance are very important.
- the sensor is not as good as a resistor, so the frequency output is affected every time the circuit changes, and there is a problem that accurate measurement may not be possible.
- V3 V V2 From the equation, V3 of resistor 2 is determined by the ratio of at least six resistors. The problem here is that one of the most important things is that six resistors affect the output V 3 at the same time. This is a very problematic problem on the line. Mysterious
- the problem with the eye is that the circuit is good. This is due to a large difference in measurement when products outside the standard 5 change due to the influence of the surroundings. In addition, when the V-type 6 used in the latter stage becomes more sensitive to the surroundings, the degree of measurement has changed significantly due to the effect of the heat of electricity flowing in the converter of the meter. is there.
- the second sensor which is installed in the first and second positions of the flow meter, and is connected in series by connecting each terminal, in order to solve the problem
- Have resistance A second line connected to one of the two sensors, a second line connected to one end of the second sensor, and a second line connected to one end of the second sensor.
- a third wire connected to the second sensor, a reference to which one end is connected to the third wire and is grounded, and a switch voice connected to the second and third wires to enable them.
- a chip that selects one of the second, the third, and the third, a voltage that converts each voltage selected by the chip, and the switching device that controls the switching device.
- the operation of inputting the signal of the inverter is provided with, and the second line and the three are based on the voltage in the state based on the voltage obtained by multiplying the voltage in the state by the product of the voltage
- the voltage is calculated by subtracting Ru and characterized in that.
- the third is that the light is useful and the resistance sensor is two.
- Ming is useful, when it can be used even when resistance is large.
- FIG. 6 is a circuit diagram related to conventional degree measurement. Good for carrying out Ming
- Reference 2 shows the temperature measurement path.
- Degree measurement 2 is obtained as a configuration of a shin-o-meter.
- the degree measurement 2 consists of a first sensor 2 2 (P 00, a second sensor 23 (P 0 0) and a second 2 5 having 24 RC) and a second 2 having the same 24 (RC).
- Third 24 with RC 24 (RC), Voltage 28 (CC), Power 29 (R), Reference 30 (Ref 00), Oset 3 (RO ff), and 3 2 (Switch device) , Chip Kuza
- the second two are the sensors that are installed in the constant measuring device of the constant tube in the shin-o-meter, and are connected in series.
- One sensor 2 2 2 sen 3, antibody is used. Thus, it is connected to 35 of the second sensor 22.
- the end of the second sensor 2 3 is connected to 3 6.
- the second sensor 23 is connected to 37.
- the end of the first 25 is connected to the 35 to which the 22 of the center 22 is connected.
- the voltage 28 is connected to the power source 25 via the power source 29. 2 of 5 and 3 are connected to Chipper D pattern 3 3.
- One end of the second sensor 2 3 is connected to 3 6, and the second end 2 6 is connected. 2 of 2 6
- the second sensor 2 3 is connected to 3 7, and the end of the third 2 7 is connected to 3 7.
- the end of the standard 30 is connected to the third 27. 30 through offset 3 and through 3 8 Connected to chip server 3 3. Connected to three 27, chipsa AD converter 3 3.
- T32 the second 26 to the third 27, the distance between the devices is set so that current flows.
- 32 gates are connected to CP 34.
- the second 2 63 3 2 7 can be made inactive.
- each divided voltage can be converted to A and output to 34.
- C P 34 is a computation / placement having a computation function and a control function, and at least a chip counter 3 3 E 3 2 is connected here.
- C P 34 is the above composition with the minimum number of items other than this, and can measure many times. As for C P 3, it can be solved from the following formula, so it is omitted here.
- Fig. 3 shows the case where the resistance sensor is 1
- Fig. 3 shows the case where the resistance sensor is two
- Fig. 4 shows the case where it can be used even when the resistance is large
- Fig. 5 shows the current against 4. This is when the amount of money is added.
- the same elements are basically the same as those shown in the figure.
- the basic concept of the road shown here is to measure the resistance directly with the chip resistor D 3 3 ().
- the voltage at the end of 3 8 is defined as 0, the voltage at the end of the third 27 is defined as V2, the voltage at the end of the second 26 is defined as V2, and the voltage at the end of the second 26 is defined as V3.
- () corresponding to sensor 22) is represented by () below.
- V3 becomes.
- V 2 is V2 V2.
- V is V
- V j. V0 V0 V0.
- the above () becomes the following formula.
- V V0 (As can be seen from the above, even if the characteristics of the A 40 are changed, the calculation formula does not affect the measurement. In the state, the chip 39 and the A 40 are combined. However, this is not limited to this, and it is also possible to configure the chip 39 as an example.
- 4 is a circuit that can be used even when 24 (RC) is large, and a switching device (here 32 is assumed to be an example) is provided at the position indicated by the mark.
- (5) is the value obtained by multiplying the voltage in the second 2 63 3 2 7 by the product of the reference voltage and the voltage in the state, subtracted by the product of the voltage reference based on the voltage in the state And 24 (RC).
- the difference between 0 and 2 can be realized in the range of 200 C to 200 C. Therefore, it is possible to obtain a very low difference (05 C sun) by forming a second cell.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Measuring Volume Flow (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200880003297XA CN101828100B (zh) | 2008-07-28 | 2008-10-15 | 流量计中的温度测量电路 |
US12/520,249 US8051708B2 (en) | 2008-07-28 | 2008-10-15 | Temperature measuring circuit in a flowmeter |
EP08876658.9A EP2306168B1 (en) | 2008-07-28 | 2008-10-15 | Temperature measurement circuit in flowmeter |
KR1020097012779A KR101057555B1 (ko) | 2008-07-28 | 2008-10-15 | 유량계에 있어서의 온도계측회로 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-193343 | 2008-07-28 | ||
JP2008193343A JP4274385B1 (ja) | 2008-07-28 | 2008-07-28 | 流量計における温度計測回路 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010013360A1 true WO2010013360A1 (ja) | 2010-02-04 |
Family
ID=40821538
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2008/069078 WO2010013360A1 (ja) | 2008-07-28 | 2008-10-15 | 流量計における温度計測回路 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8051708B2 (ja) |
EP (1) | EP2306168B1 (ja) |
JP (1) | JP4274385B1 (ja) |
KR (1) | KR101057555B1 (ja) |
CN (1) | CN101828100B (ja) |
TW (1) | TWI382163B (ja) |
WO (1) | WO2010013360A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111670343A (zh) * | 2018-02-02 | 2020-09-15 | 恩德斯+豪斯流量技术股份有限公司 | 科里奥利测量换能器和科里奥利测量设备 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102497193B (zh) * | 2011-11-23 | 2013-07-31 | 中国人民解放军海军工程大学 | 一种高精度的模拟乘法器零漂补偿电路 |
JP5888499B2 (ja) * | 2012-02-01 | 2016-03-22 | 横河電機株式会社 | 温度伝送器 |
JP5981319B2 (ja) * | 2012-11-22 | 2016-08-31 | 日立オートモティブシステムズ株式会社 | 吸気温度センサ装置および流量測定装置 |
CN107764350B (zh) * | 2016-08-18 | 2020-05-08 | 高准有限公司 | 质量流量测量方法和质量流量计 |
EP3563122A1 (de) * | 2016-12-29 | 2019-11-06 | Endress+Hauser Flowtec AG | VIBRONISCHES MEßSYSTEM ZUM MESSEN EINER MASSENDURCHFLUßRATE |
CN110114642B (zh) * | 2016-12-29 | 2021-06-08 | 恩德斯+豪斯流量技术股份有限公司 | 用于测量质量流率的电子振动测量系统 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63132328U (ja) * | 1987-02-20 | 1988-08-30 | ||
JPH01291133A (ja) * | 1988-05-17 | 1989-11-22 | Yokogawa Electric Corp | 測温抵抗体温度変換装置 |
JPH07286910A (ja) * | 1994-04-20 | 1995-10-31 | Hitachi Ltd | 温度変換器 |
JP3105253B2 (ja) | 1991-12-23 | 2000-10-30 | マイクロ モーション,インコーポレイティド | 光ファイバー・センサーを使用するコリオリ効果計器 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US5264341A (en) | 1989-08-30 | 1993-11-23 | Eli Lilly And Company | Selective cloning for high monoclonal antibody secreting hybridomas |
US5317520A (en) * | 1991-07-01 | 1994-05-31 | Moore Industries International Inc. | Computerized remote resistance measurement system with fault detection |
US5929344A (en) * | 1997-07-28 | 1999-07-27 | Micro Motion, Inc. | Circuitry for reducing the number of conductors for multiple resistive sensors on a coriolis effect mass flowmeter |
US6845659B2 (en) * | 2002-07-19 | 2005-01-25 | Celerity Group, Inc. | Variable resistance sensor with common reference leg |
JP2004157024A (ja) * | 2002-11-07 | 2004-06-03 | Omron Corp | 温度検出装置 |
JP4359705B2 (ja) * | 2003-12-08 | 2009-11-04 | 株式会社日立製作所 | 発熱抵抗式流量測定装置 |
-
2008
- 2008-07-28 JP JP2008193343A patent/JP4274385B1/ja active Active
- 2008-10-15 WO PCT/JP2008/069078 patent/WO2010013360A1/ja active Application Filing
- 2008-10-15 KR KR1020097012779A patent/KR101057555B1/ko active IP Right Grant
- 2008-10-15 US US12/520,249 patent/US8051708B2/en active Active
- 2008-10-15 CN CN200880003297XA patent/CN101828100B/zh active Active
- 2008-10-15 EP EP08876658.9A patent/EP2306168B1/en active Active
-
2009
- 2009-03-16 TW TW098108451A patent/TWI382163B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63132328U (ja) * | 1987-02-20 | 1988-08-30 | ||
JPH01291133A (ja) * | 1988-05-17 | 1989-11-22 | Yokogawa Electric Corp | 測温抵抗体温度変換装置 |
JP3105253B2 (ja) | 1991-12-23 | 2000-10-30 | マイクロ モーション,インコーポレイティド | 光ファイバー・センサーを使用するコリオリ効果計器 |
JPH07286910A (ja) * | 1994-04-20 | 1995-10-31 | Hitachi Ltd | 温度変換器 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111670343A (zh) * | 2018-02-02 | 2020-09-15 | 恩德斯+豪斯流量技术股份有限公司 | 科里奥利测量换能器和科里奥利测量设备 |
CN111670343B (zh) * | 2018-02-02 | 2022-07-22 | 恩德斯+豪斯流量技术股份有限公司 | 科里奥利测量换能器和科里奥利测量设备 |
Also Published As
Publication number | Publication date |
---|---|
JP4274385B1 (ja) | 2009-06-03 |
CN101828100B (zh) | 2012-05-30 |
JP2010032299A (ja) | 2010-02-12 |
EP2306168A4 (en) | 2016-02-24 |
CN101828100A (zh) | 2010-09-08 |
KR101057555B1 (ko) | 2011-08-17 |
TWI382163B (zh) | 2013-01-11 |
EP2306168B1 (en) | 2017-12-06 |
US8051708B2 (en) | 2011-11-08 |
KR20100035138A (ko) | 2010-04-02 |
EP2306168A1 (en) | 2011-04-06 |
US20100326185A1 (en) | 2010-12-30 |
TW201005272A (en) | 2010-02-01 |
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