JP2015132618A5 - - Google Patents

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JP2015132618A5
JP2015132618A5 JP2015041310A JP2015041310A JP2015132618A5 JP 2015132618 A5 JP2015132618 A5 JP 2015132618A5 JP 2015041310 A JP2015041310 A JP 2015041310A JP 2015041310 A JP2015041310 A JP 2015041310A JP 2015132618 A5 JP2015132618 A5 JP 2015132618A5
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mass flow
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density measurement
fluid characteristic
flow meter
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少なくとも第１の振動型流量計を通って流れる流体の音速を計算する方法であって、
１又は２以上の周波数で流量計を振動させる工程と、
振動応答を受信する工程と、
前記振動応答に基づいて、流体の第１の流体特性を生成する工程と、
前記振動応答に基づいて、流体の少なくとも第２の流体特性を生成する工程と、
第１の流体特性及び少なくとも第２の流体特性に基づいて、音速を計算する工程と、
を有する方法。 A method for calculating the speed of sound of a fluid flowing through at least a first vibratory flow meter comprising:
Vibrating the flow meter at one or more frequencies;
Receiving a vibration response;
Generating a first fluid property of a fluid based on the vibration response ;
Generating at least a second fluid property of the fluid based on the vibration response ;
Calculating the speed of sound based on the first fluid characteristic and at least the second fluid characteristic;
How to have a. 更に、計算された音速に基づいて密度誤差を計算する工程を含む、請求項１に記載の方法。 The method of claim 1, further comprising calculating a density error based on the calculated sound speed. 更に、計算された密度誤差に基づいて密度を訂正する工程を含む、請求項２に記載の方法。 The method of claim 2, further comprising correcting the density based on the calculated density error. 更に、計算された音速に基づいて質量流量誤差を計算する工程を含む、請求項１に記載の方法。 The method of claim 1, further comprising calculating a mass flow error based on the calculated sound velocity. 更に、計算された質量流量誤差に基づいて質量流量を訂正する工程を含む、請求項４に記載の方法。 5. The method of claim 4, further comprising correcting the mass flow based on the calculated mass flow error. 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定と少なくとも第２の密度測定を備える、請求項１に記載の方法。 The method of claim 1, wherein the first fluid characteristic and the at least second fluid characteristic comprise a first density measurement and at least a second density measurement. 第１の流体特性及び少なくとも第２の流体特性は、第１の質量流量と少なくとも第２の質量流量を含む、請求項１に記載の方法。 The method of claim 1, wherein the first fluid characteristic and the at least second fluid characteristic include a first mass flow rate and at least a second mass flow rate. 振動型流量計を振動させる工程は、
第１の周波数で振動型流量計を振動させる工程と、
更に、第１の周波数とは別の周波数である少なくとも第２の周波数で振動型流量計を振動させる工程を有する、請求項１に記載の方法。 The process of vibrating the vibratory flow meter
Vibrating the vibratory flow meter at a first frequency;
The method according to claim 1, further comprising vibrating the vibratory flow meter at at least a second frequency that is different from the first frequency. 更に、振動応答を、振動応答の第１の周波数成分と、振動応答の少なくとも第２の周波数成分に分離する工程を有する、請求項１に記載の方法。 The method of claim 1, further comprising separating the vibration response into a first frequency component of the vibration response and at least a second frequency component of the vibration response. 第１の流体特性は、振動応答の第１の周波数成分に基づき、少なくとも第２の流体特性は、振動応答の少なくとも第２の周波数成分に基づく、請求項１に記載の方法。 The method of claim 1, wherein the first fluid characteristic is based on a first frequency component of the vibration response, and the at least second fluid characteristic is based on at least a second frequency component of the vibration response. 振動型流量計を振動させる工程は、
第１の周波数で振動型流量計を振動させる工程と、
振動応答を、第１の周波数成分と、少なくとも第２の周波数成分に分離する工程を含み、
第１の周波数成分と少なくとも第２の周波数成分は、第１の周波数での振動によって生成される、請求項１に記載の方法。 The process of vibrating the vibratory flow meter
Vibrating the vibratory flow meter at a first frequency;
Separating the vibration response into a first frequency component and at least a second frequency component;
The method of claim 1, wherein the first frequency component and at least the second frequency component are generated by vibration at the first frequency. 更に、
少なくとも第２の振動型流量計を振動させる工程と、
第１の振動型流量計から第１の流体特性を生成する工程と、
少なくとも第２の振動型流量計から少なくとも第２の流体特性を生成する工程とを有する、請求項１に記載の方法。 Furthermore,
Vibrating at least the second vibratory flow meter;
Generating a first fluid characteristic from a first vibratory flow meter;
Generating at least a second fluid characteristic from at least a second vibratory flow meter. 第１の振動計及び少なくとも第２の振動計を振動させる工程は、
第１の周波数で第１の振動計を振動させる工程と、
第１の周波数とは別の、少なくとも第２の周波数で少なくとも第２の流量計を振動させる工程を有する、請求項１２に記載の方法。 Vibrating the first vibrometer and at least the second vibrometer,
Vibrating the first vibrometer at a first frequency;
The method of claim 12, comprising oscillating at least a second flow meter at at least a second frequency separate from the first frequency. 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定及び少なくとも第２の密度測定を備え、第１の密度測定は既知の流体密度から生成される、請求項１に記載の方法。 The first fluid characteristic and the at least second fluid characteristic comprise a first density measurement and at least a second density measurement, wherein the first density measurement is generated from a known fluid density. Method. 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定及び少なくとも第２の密度測定を備え、更に、
第１の密度測定を予測された密度測定と比較する工程と、
第１の密度測定と予測された密度測定との差がしきい値未満であれば、第１の密度測定は現実の流体密度を含むと判断する工程とを有する、請求項１に記載の方法。 The first fluid characteristic and the at least second fluid characteristic comprise a first density measurement and at least a second density measurement;
Comparing the first density measurement with the predicted density measurement;
The method of claim 1, further comprising: determining that the first density measurement includes an actual fluid density if the difference between the first density measurement and the predicted density measurement is less than a threshold value. . 第１の流体特性及び少なくとも第２の流体特性は、第１の質量流量と少なくとも第２の質量流量を備え、更に、
第１の質量流量を予測された質量流量と比較する工程と、
第１の質量流量と予測された質量流量の差が、しきい値未満ならば、第１の質量流量は現実の質量流量を含むと判断する工程とを有する、請求項１に記載の方法。 The first fluid characteristic and at least the second fluid characteristic comprise a first mass flow rate and at least a second mass flow rate, and
Comparing the first mass flow rate to the predicted mass flow rate;
2. The method of claim 1, further comprising: determining that the first mass flow rate includes an actual mass flow rate if the difference between the first mass flow rate and the predicted mass flow rate is less than a threshold value. 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定及び少なくとも第２の密度測定を備え、更に、
第１の密度測定を予測された密度と比較する工程と、
第１の密度測定と予測された密度測定との差がしきい値を越えていれば、現実の流体密度と流体の音速を計算する工程とを有する、請求項１に記載の方法。 The first fluid characteristic and the at least second fluid characteristic comprise a first density measurement and at least a second density measurement;
Comparing the first density measurement with the predicted density;
The method of claim 1, comprising calculating the actual fluid density and the sound velocity of the fluid if the difference between the first density measurement and the predicted density measurement exceeds a threshold. 第１の流体特性及び少なくとも第２の流体特性は、第１の質量流量と少なくとも第２の質量流量を備え、更に、
第１の質量流量を予測された質量流量と比較する工程と、
第１の質量流量と予測された質量流量の差が、しきい値を越えていれば、現実の質量流量と流体の音速を計算する工程とを有する、請求項１に記載の方法。 The first fluid characteristic and at least the second fluid characteristic comprise a first mass flow rate and at least a second mass flow rate, and
Comparing the first mass flow rate to the predicted mass flow rate;
The method of claim 1, comprising calculating the actual mass flow rate and the sound velocity of the fluid if the difference between the first mass flow rate and the predicted mass flow rate exceeds a threshold value. 振動センサ(１０４、１０５、１０５‘)と該振動センサに結合されたメータ電子機器(２０)を含むメータアセンブリ(１０)を備えた、流れ流体の音速を計算する振動型流量計において、
メータ電子機器(２０)は、
振動センサからの振動応答を受信し、
前記振動応答に基づいて、流体の第１の流体特性を生成し、
前記振動応答に基づいて、流体の少なくとも第２の流体特性を生成し、
第１の流体特性と少なくとも第２の流体特性とに基づいて、音速を計算するように構成されている、振動型流量計(５)。 In a vibratory flow meter comprising a meter assembly (10) comprising a vibration sensor (104, 105, 105 ′) and meter electronics (20) coupled to the vibration sensor,
Meter electronics (20)
Receive vibration response from vibration sensor,
Generating a first fluid characteristic of the fluid based on the vibration response ;
Generating at least a second fluid property of the fluid based on the vibrational response ;
A vibratory flow meter (5) configured to calculate the speed of sound based on the first fluid characteristic and at least the second fluid characteristic. 第１の流体特性と少なくとも第２の流体特性は、第１の密度測定と少なくとも第２の密度測定を備える、請求項１９に記載の振動型流量計(５)。 20. A vibratory flow meter (5) according to claim 19, wherein the first fluid characteristic and at least the second fluid characteristic comprise a first density measurement and at least a second density measurement. 第１の流体特性と少なくとも第２の流体特性は、第１の質量流量と少なくとも第２の質量流量を備えている、請求項１９に記載の振動型流量計(５)。 20. A vibratory flow meter (5) according to claim 19, wherein the first fluid characteristic and at least the second fluid characteristic comprise a first mass flow and at least a second mass flow. 第１の流体特性は、振動応答の第１の周波数成分に基づき、少なくとも第２の流体特性は、振動応答の少なくとも第２の周波数成分に基づく、請求項１９に記載の振動型流量計(５)。 20. The vibratory flow meter (5) according to claim 19, wherein the first fluid characteristic is based on a first frequency component of the vibration response and at least the second fluid characteristic is based on at least a second frequency component of the vibration response. ). メータ電子機器(２０)は更に、第１の周波数及び少なくとも第２の周波数で振動型流量計５を振動させるように構成され、少なくとも第２の周波数は第１の周波数とは異なる、請求項１９に記載の振動型流量計(５)。   The meter electronics (20) is further configured to vibrate the vibratory flow meter 5 at a first frequency and at least a second frequency, wherein at least the second frequency is different from the first frequency. The vibration type flow meter (5) described in 1. メータ電子機器(２０)は更に、振動応答を第１の周波数成分と少なくとも第２の周波数成分とに分離するように構成されている、請求項１９に記載の振動型流量計(５)。 20. The vibratory flow meter (5) of claim 19, wherein the meter electronics (20) is further configured to separate the vibration response into a first frequency component and at least a second frequency component. メータ電子機器(２０)は更に、第１の周波数で流量計を振動させ、振動応答を第１の周波数成分と少なくとも第２の周波数成分とに分離するように構成され、
第１の周波数成分と少なくとも第２の周波数成分は、第１の周波数での振動により生成される、請求項１９に記載の振動型流量計(５)。 The meter electronics (20) is further configured to vibrate the flow meter at a first frequency and separate the vibration response into a first frequency component and at least a second frequency component,
20. The vibratory flow meter (5) according to claim 19, wherein the first frequency component and at least the second frequency component are generated by vibration at the first frequency. 第１の流体特性と少なくとも第２の流体特性は、第１の密度測定と少なくとも第２の密度測定を含み、第１の密度測定は既知の流体密度から生成される、請求項１９に記載の振動型流量計(５)。 The first fluid characteristic and at least a second fluid characteristic comprise a first density measurement and at least a second density measurement, wherein the first density measurement is generated from a known fluid density. Vibrating flow meter (5). 第１の流体特性と少なくとも第２の流体特性は、第１の密度測定と少なくとも第２の密度測定を含み、メータ電子機器は更に第１の密度測定を予測された密度と比較するように構成され、第１の密度測定と予測された密度の差がしきい値未満であれば、第１の密度測定は実際の密度を備えると決定するように構成される、請求項１９に記載の振動型流量計(５)。 The first fluid characteristic and the at least second fluid characteristic include a first density measurement and at least a second density measurement, and the meter electronics is further configured to compare the first density measurement with the predicted density. 20. The vibration of claim 19, wherein the vibration is configured to determine that the first density measurement comprises an actual density if the difference between the first density measurement and the predicted density is less than a threshold value. Type flow meter (5). 第１の流体特性と少なくとも第２の流体特性は、第１の質量流量と少なくとも第２の質量流量を備え、メータ電子機器は更に、第１の質量流量を予測された質量流量と比較し、第１の質量流量と予測された質量流量の差が、しきい値未満であれば、第１の質量流量は実際の質量流量を備えると決定するように構成される、請求項１９に記載の振動型流量計(５)。 The first fluid characteristic and at least the second fluid characteristic comprise a first mass flow and at least a second mass flow, and the meter electronics further compares the first mass flow to the predicted mass flow; 20. The first mass flow rate is configured to determine that the first mass flow rate comprises an actual mass flow rate if a difference between the first mass flow rate and the predicted mass flow rate is less than a threshold value. Vibrating flow meter (5). メータ電子機器(２０)は更に、計算された音速に基づいて密度誤差を計算するように構成されている、請求項１９に記載の振動型流量計(５)。 20. The vibratory flow meter (5) of claim 19, wherein the meter electronics (20) is further configured to calculate a density error based on the calculated sound speed. メータ電子機器(２０)は更に、密度誤差に基づいて密度を訂正するように構成されている、請求項２９に記載の振動型流量計(５)。 30. The vibratory flow meter (5) of claim 29, wherein the meter electronics (20) is further configured to correct the density based on the density error. メータ電子機器(２０)は更に、計算された音速に基づいて質量流量誤差を計算するように構成されている、請求項１９に記載の振動型流量計(５)。 20. The vibratory flow meter (5) of claim 19, wherein the meter electronics (20) is further configured to calculate a mass flow error based on the calculated sound velocity. メータ電子機器(２０)は更に、質量流量誤差に基づいて質量流量を訂正するように構成されている、請求項３１に記載の振動型流量計(５)。 32. The vibratory flow meter (5) of claim 31, wherein the meter electronics (20) is further configured to correct the mass flow based on a mass flow error. 第１の流量計(５Ａ)と、少なくとも第２の流量計(５Ｂ)と、第１の流量計(５Ａ)及び少なくとも第２の流量計(５Ｂ)に連結された処理システム(７０７)を備えた流れ流体の音速を計算する振動型流量計システム(７００)は、
処理システム(７０７)が、
第１の流量計(５Ａ)から第１の振動応答を受信し、少なくとも第２の流量計(５Ｂ)から少なくとも第２の振動応答を受信し、
第１の振動応答に基づいて流体の第１の流体特性を生成し、
少なくとも第２の振動応答に基づいて流体の少なくとも第２の流体特性を生成し、
第１の流体特性及び少なくとも第２の流体特性に基づいて流体の音速を計算するように構成されている振動型流量計システム(７００)。 A first flow meter (5A), at least a second flow meter (5B), a first flow meter (5A), and a processing system (707) connected to at least the second flow meter (5B). The vibratory flow meter system (700) for calculating the sound velocity of the flowing fluid is:
Processing system (707)
Receiving a first vibration response from the first flow meter (5A), receiving at least a second vibration response from at least the second flow meter (5B);
Generating a first fluid characteristic of the fluid based on the first vibration response;
Generating at least a second fluid characteristic of the fluid based on at least the second vibrational response;
A vibratory flow meter system (700) configured to calculate a sound velocity of the fluid based on the first fluid characteristic and at least the second fluid characteristic. 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定及び少なくとも第２の密度測定を含む、請求項３３に記載の振動型流量計システム(７００)。 34. The vibratory flow meter system (700) of claim 33, wherein the first fluid characteristic and the at least second fluid characteristic comprise a first density measurement and at least a second density measurement. 第１の流体特性及び少なくとも第２の流体特性は、第１の質量流量及び少なくとも第２の
質量流量を含む、請求項３３に記載の振動型流量計システム(７００)。 34. The vibratory flow meter system (700) of claim 33, wherein the first fluid characteristic and the at least second fluid characteristic comprise a first mass flow rate and at least a second mass flow rate. 処理システムは更に、第１の周波数で第１の流量計(５Ａ)を振動させ、少なくとも第２の周波数で少なくとも第２の流量計(５Ｂ)を振動させるように構成され、少なくとも第２の周波数は第１の周波数とは異なる、請求項３３に記載の振動型流量計システム(７００)。 The processing system is further configured to oscillate the first flow meter (5A) at a first frequency and oscillate at least the second flow meter (5B) at least at a second frequency, and at least the second frequency. 34. The vibratory flow meter system (700) of claim 33, wherein is different from the first frequency. 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定及び少なくとも第２の密度測定を含み、第１の密度測定は既知の流体密度から生成される、請求項３３に記載の振動型流量計システム(７００)。 34. The first fluid characteristic and the at least second fluid characteristic include a first density measurement and at least a second density measurement, wherein the first density measurement is generated from a known fluid density. Vibration type flow meter system (700). 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定及び少なくとも第２の密度測定を含み、処理システム(７０１)は更に、
第１の密度測定を予測された密度測定と比較し、第１の密度測定と予測された密度測定の差がしきい値未満であれば、第１の密度測定は実際の流体密度を含むと決定するように構成されている、請求項３３に記載の振動型流量計システム(７００)。 The first fluid characteristic and the at least second fluid characteristic include a first density measurement and at least a second density measurement, and the processing system (701) further includes:
Comparing the first density measurement with the predicted density measurement, and if the difference between the first density measurement and the predicted density measurement is less than a threshold value, the first density measurement includes the actual fluid density 34. The vibratory flow meter system (700) of claim 33, configured to determine. 第１の流体特性及び少なくとも第２の流体特性は、第１の密度測定と少なくとも第２の密度測定を備え、処理システム(７０１)は更に、
第１の密度測定を予測された密度測定と比較し、第１の密度測定と予測された密度測定の差がしきい値を越えれば、実際の流体密度及び流体の音速を計算するように構成されている、請求項３３に記載の振動型流量計システム(７００)。 The first fluid characteristic and the at least second fluid characteristic comprise a first density measurement and at least a second density measurement, and the processing system (701) further comprises:
Comparing the first density measurement with the predicted density measurement and, if the difference between the first density measurement and the predicted density measurement exceeds a threshold, configured to calculate the actual fluid density and the sound velocity of the fluid. 34. The vibratory flow meter system (700) of claim 33. 第１の流体特性及び少なくとも第２の流体特性は、第１の質量流量及び少なくとも第２の質量流量を備え、処理システム(７０１)は更に、
第１の質量流量を予測された質量流量と比較し、
第１の質量流量と予測された質量流量の差が、しきい値未満であれば、第１の質量流量は実際の質量流量を備えると決定するように構成される、請求項３３に記載の振動型流量計システム(７００)。 The first fluid characteristic and at least the second fluid characteristic comprise a first mass flow and at least a second mass flow, and the processing system (701) further includes
Comparing the first mass flow rate with the predicted mass flow rate;
34. The device of claim 33, configured to determine that the first mass flow rate comprises an actual mass flow rate if the difference between the first mass flow rate and the predicted mass flow rate is less than a threshold value. Vibration type flow meter system (700). 第１の流体特性及び少なくとも第２の流体特性は、第１の質量流量及び少なくとも第２の質量流量を備え、処理システム(７０１)は更に、
第１の質量流量を予測された質量流量と比較し、
第１の質量流量と予測された質量流量の差が、しきい値を越えていれば、現実の質量流量と流体の音速を計算するように構成されている、請求項３３に記載の振動型流量計システム(７００)。 The first fluid characteristic and at least the second fluid characteristic comprise a first mass flow and at least a second mass flow, and the processing system (701) further includes
Comparing the first mass flow rate with the predicted mass flow rate;
34. The vibration type of claim 33, configured to calculate the actual mass flow rate and the sound velocity of the fluid if the difference between the first mass flow rate and the predicted mass flow rate exceeds a threshold value. Flow meter system (700). 処理システム(７０１)は更に、計算された音速に基づいて密度誤差を計算するように構成されている、請求項３３に記載の振動型流量計システム(７００)。 The vibratory flow meter system (700) of claim 33, wherein the processing system (701) is further configured to calculate a density error based on the calculated sound velocity. 処理システムは更に、計算された密度誤差に基づいて密度を訂正するように構成されている、請求項４２に記載の振動型流量計システム(７００)。 43. The vibratory flow meter system (700) of claim 42, wherein the processing system is further configured to correct the density based on the calculated density error. 処理システム(７０１)は更に、計算された音速に基づいて質量流量誤差を計算するように構成されている、請求項３３に記載の振動型流量計システム(７００)。 34. The vibratory flow meter system (700) of claim 33, wherein the processing system (701) is further configured to calculate a mass flow error based on the calculated sound velocity. 処理システム(７０１)は更に、計算された質量流量誤差に基づいて質量流量を訂正するように構成されている、請求項４４に記載の振動型流量計システム(７００)。 45. The vibratory flow meter system (700) of claim 44, wherein the processing system (701) is further configured to correct the mass flow rate based on the calculated mass flow error.
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