CN112816034A - Detection method and system of variable aperture flow probe - Google Patents
Detection method and system of variable aperture flow probe Download PDFInfo
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- CN112816034A CN112816034A CN202011594371.9A CN202011594371A CN112816034A CN 112816034 A CN112816034 A CN 112816034A CN 202011594371 A CN202011594371 A CN 202011594371A CN 112816034 A CN112816034 A CN 112816034A
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- flow
- flow probe
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- 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
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
Abstract
The invention discloses a detection method of a variable aperture flow probe, which comprises the following steps: recording the number and type information of the variable aperture flow probe in a scanning or input mode; detecting the variable aperture flow probe, and acquiring and displaying real-time voltage of the flow probe at each flow point and the variation trend of a flow-voltage curve; processing the data acquired after the multiple detections, and judging whether the probe is qualified or not by using the qualified standard of the variable aperture flow probe; the collected data is stored in a data table of the flow probe. The method of the invention records the detection process data in the background, and displays the process data and the time information on the interface, thereby realizing batch inspection, improving the production efficiency and saving time and labor.
Description
Technical Field
The invention relates to the field of design of medical instruments, in particular to a detection method and a detection system of a variable aperture flow probe.
Background
A flow probe (or called flow sensor) is a common medical instrument and can sensitively respond to flow acquisition. In the production inspection, the detection of the flow probe is difficult to judge visually, and besides a report provided by a manufacturer, the detection method is usually adopted to carry out verification after the flow probe is assembled on a machine. This detection method is both unreliable and time and labor consuming.
Disclosure of Invention
The invention aims to overcome the technical defects and provides a detection method of a variable aperture flow probe, which can present a detection result and a detection process through a software interface.
In order to achieve the above object, the present invention provides a method for detecting a variable aperture flow probe, the method comprising:
recording the number and type information of the variable aperture flow probe in a scanning or input mode;
detecting the variable aperture flow probe, and acquiring and displaying real-time voltage of the flow probe at each flow point and the variation trend of a flow-voltage curve;
processing the data acquired after the multiple detections, and judging whether the probe is qualified or not by using the qualified standard of the variable aperture flow probe;
the collected data is stored in a data table of the flow probe.
As an improvement of the above method, the probe type comprises: an inspiratory flow probe or an expiratory flow probe; the flow probe is in a test range of 0-130L/min, the default test range is 1L/min for 0-10L/min stepping, and the test range is 10L/min for 10-130L/min stepping, so that the total number of detected flow points is 23: 0,1,2,3,4,5,6,7,8,9,10,20,30,40,50,60,70,80,90,100,110,120,130, in units of: l/min, detection interval is as follows: 1L/min, 2-10L/min, 10-80L/min and 90-130L/min.
As an improvement of the above method, the processing the data acquired after the multiple detections includes:
at each flow point, acquiring numerical values of a plurality of sampling points from a flow-voltage curve recorded in each detection, and averaging the numerical values to serve as a voltage value and a flow value of the detection; detecting each flow point for N times;
calculating the maximum error and the average 1L resolution of the flow probe detection in each detection interval:
the average voltage of the flow probe is equal to the sum of voltage values within the detection times/(N-1);
the maximum error detected by the flow probe is equal to the average voltage of the flow point/the average voltage of the flow probe;
the average 1L resolution is the sum of flow values/(N-1) within the number of detections.
As an improvement of the above method, the qualification criteria of the variable aperture flow probe are:
acquiring set maximum errors a1, a2, a3 and a4 of four detection intervals; 1L resolution limit values b1, b2, b3, and b 4;
when the maximum error detected by the flow probe corresponding to the detection interval of 1L/min is greater than a1, or the average resolution of 1L is less than b1, the flow probe is unqualified;
when the maximum error detected by the flow probe corresponding to the detection interval of 2-10L/min is greater than a2, or the average resolution of 1L is less than b2, the flow probe is unqualified;
when the maximum error detected by the flow probe corresponding to the detection interval of 10-80L/min is greater than a3, or the average resolution of 1L is less than b3, the flow probe is unqualified;
when the maximum error detected by the flow probe corresponding to the detection interval of 90-130L/min is greater than a4, or the average resolution of 1L is less than b4, the flow probe is unqualified;
wherein the maximum error threshold and the 1L resolution limit are preset.
As an improvement of the above method, the method further comprises: carrying out fatigue test on the variable aperture flow probe; the method specifically comprises the following steps:
firstly, carrying out flow-voltage curve measurement of a flow probe, then outputting the flow according to set fatigue test parameters, carrying out flow-voltage curve measurement once after finishing the specified flow output times, carrying out flow probe curve measurement once after finishing the total flow output times, and finishing the fatigue test.
As an improvement of the above method, the parameters of the fatigue test include:
inspiration time: the time of the output flow;
expiration time: the interval time of the output flow;
total times: total number of output flows;
and (4) calibrating times: the number of flow-voltage curve measurements;
flow rate value: a target value of the flow output;
the remaining times are as follows: the number of fatigue tests remaining.
As an improvement of the above method, the method further comprises: calibrating the flow probe, specifically:
and forming a data list by the serial number, the flow value and the voltage value of the flow probe, and displaying the data of the flow probe into the list after calibrating one flow point.
The invention has the advantages that:
the method of the invention records the detection process data in the background, and displays the process data and the time information on the interface, thereby realizing batch inspection, improving the production efficiency and saving time and labor.
Drawings
FIG. 1 is a flow chart of a method of detecting a variable aperture flow probe of the present invention;
FIG. 2 is a schematic illustration of the flow probe detection of the present invention;
FIG. 3 is a schematic diagram of a flow measurement result;
FIG. 4 is a schematic diagram of a qualified benchmark configuration;
FIG. 5 is a schematic illustration of a fatigue test;
FIG. 6 is a schematic illustration of flow probe calibration.
Detailed Description
The technical solution of the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the present invention provides a method for detecting a variable aperture flow probe, which includes:
step 1) recording the number and type information of the variable aperture flow probe in a scanning or input mode; the probe types include: an inspiratory flow probe or an expiratory flow probe; as shown in figure 2 of the drawings, in which,
step 2) setting detection parameters;
step 3) testing the variable aperture flow probe, and recording and displaying the real-time voltage of the flow probe and the variation trend of a flow-voltage curve; the stepping of the flow-voltage curve can be freely set, and the current measured value is displayed on the curve;
the measuring range of the flow probe is 0-130L/min, the step of the default measuring range of 0-10L/min is 1L/min, and the step of the measuring range of 10-130L/min is 10L/min. Thus, a total of 23 flow points were detected: 0,1,2,3,4,5,6,7,8,9,10,20,30,40,50,60,70,80,90,100,110,120,130, in units of: l/min, detection interval is as follows: 1L/min, 2-10L/min, 10-80L/min and 90-130L/min.
And 4) detecting the flow probe by using the acquired data, wherein the detection process does not need to be interfered, the result can prompt the detection result with particularly obvious information after the test is finished, unqualified flow probes can be selected for repeated detection, and the detection result can separately store the data of the same flow probe according to the detection starting time.
If the automatic detection times is 6, the numerical values of a plurality of sampling points are obtained from the flow-voltage curve each time and are used as the numerical values of one detection after averaging, and the average value of 5 times after six detections is calculated is used as the detection value, so that the automatic detection times can be freely set. As shown in fig. 3.
Qualification standard of the variable aperture flow probe:
1L/min, greater than the maximum error (%), or less than the 1L resolution limit, indicating a failure.
2-10L/min, greater than the maximum error (%), or less than 1L resolution limit, and displaying the failure.
10-80L/min, greater than the maximum error (%), or less than 1L resolution limit, indicating a failure
And (5) 90-130L/min, which is larger than the maximum error (%), or smaller than the resolution limit value of 1L, and indicating that the product is unqualified.
The above criteria can be selected, and new qualified criteria can be customized, such as 1L resolution limit including: 30%, 20% and 5%. As shown in fig. 4.
Flow probe average voltage is equal to the sum of voltage values in detection times/(detection times-1)
Average 1L resolution is the sum of flow values within the number of detections/(number of detections-1)
The sum of the voltage differences within the number of detections is (the sum of the detection voltage-the average voltage of the flow probe) raised to the second power
Flow probe mean square error (sum of voltage differences within detection times/(detection times-1)) square root
The maximum error detected by the flow probe is the average voltage of 23 points (/ flow probe average voltage) 100.0f
Step 5) collecting and storing the measurement data in a background, and opening the measurement data through a table tool after the measurement data is exported, so that the raw data can be conveniently checked and secondary graph drawing can be conveniently carried out; the position and the duration of data storage can be freely set, and the maximum duration is 1 year; the multi-table storage can be realized, and a group of data can be stored in one flow probe in each table; one probe generates one table, and one file can have a plurality of tables.
And 6) carrying out fatigue test on the variable aperture flow probe, and calibrating the flow probe.
As shown in fig. 5, the fatigue test is an automatic test, in which a flow-voltage curve measurement of the flow probe is performed first, then the flow is output according to the set fatigue test parameters, the flow-voltage curve measurement is performed once after the specified flow output times are completed, and the flow probe curve measurement is performed once after the total flow output times are completed, so that the fatigue test is completed. During the measurement process, if the air source pressure is low, the system can suspend the test, and if the air source pressure returns to normal, the system can continue the test.
The parameters of the fatigue test are:
inspiration time: the time of the output flow.
Expiration time: the interval of the output flow.
Total times: total number of output flows. How long the remarks display takes.
And (4) calibrating times: number of flow-voltage curve measurements. The input range is 2-100.
Flow rate value: a target value for the flow output.
The remaining times are as follows: the number of fatigue tests remaining.
Step 7) calibrating the flow probe
As shown in fig. 6, the number of flow probes, flow values and voltage values form a data list, and the flow probe data will be displayed in the list after each flow point is calibrated.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A method of detecting a variable aperture flow probe, the method comprising:
recording the number and type information of the variable aperture flow probe in a scanning or input mode;
detecting the variable aperture flow probe, and acquiring and displaying real-time voltage of the flow probe at each flow point and the variation trend of a flow-voltage curve;
processing the data acquired after the multiple detections, and judging whether the probe is qualified or not by using the qualified standard of the variable aperture flow probe;
the collected data is stored in a data table of the flow probe.
2. The method of claim 1, wherein the probe type comprises: an inspiratory flow probe or an expiratory flow probe; the flow probe is in a test range of 0-130L/min, the default test range is 1L/min for 0-10L/min stepping, and the test range is 10L/min for 10-130L/min stepping, so that the total number of detected flow points is 23:
0,1,2,3,4,5,6,7,8,9,10,20,30,40,50,60,70,80,90,100,110,120,130，
the unit is: l/min, detection interval is as follows: 1L/min, 2-10L/min, 10-80L/min and 90-130L/min.
3. The method for detecting a variable aperture flow probe according to claim 2, wherein the processing the data collected after the plurality of detections comprises:
at each flow point, acquiring numerical values of a plurality of sampling points from a flow-voltage curve recorded in each detection, and averaging the numerical values to serve as a voltage value and a flow value of the detection; detecting each flow point for N times;
calculating the maximum error and the average 1L resolution of the flow probe detection in each detection interval:
the average voltage of the flow probe is equal to the sum of voltage values within the detection times/(N-1);
the maximum error detected by the flow probe is equal to the average voltage of the flow point/the average voltage of the flow probe;
the average 1L resolution is the sum of flow values/(N-1) within the number of detections.
4. The method of claim 3, wherein the qualification criteria of the variable aperture flow probe are:
acquiring set maximum errors a1, a2, a3 and a4 of four detection intervals; 1L resolution limit values b1, b2, b3, and b 4;
when the maximum error detected by the flow probe corresponding to the detection interval of 1L/min is greater than a1, or the average resolution of 1L is less than b1, the flow probe is unqualified;
when the maximum error detected by the flow probe corresponding to the detection interval of 2-10L/min is greater than a2, or the average resolution of 1L is less than b2, the flow probe is unqualified;
when the maximum error detected by the flow probe corresponding to the detection interval of 10-80L/min is greater than a3, or the average resolution of 1L is less than b3, the flow probe is unqualified;
when the maximum error detected by the flow probe corresponding to the detection interval of 90-130L/min is greater than a4, or the average resolution of 1L is less than b4, the flow probe is unqualified;
wherein the maximum error threshold and the 1L resolution limit are preset.
5. The method of claim 1, further comprising: carrying out fatigue test on the variable aperture flow probe; the method specifically comprises the following steps:
firstly, carrying out flow-voltage curve measurement of a flow probe, then outputting the flow according to set fatigue test parameters, carrying out flow-voltage curve measurement once after finishing the specified flow output times, carrying out flow probe curve measurement once after finishing the total flow output times, and finishing the fatigue test.
6. The method of claim 5, wherein the parameters of the fatigue test comprise:
inspiration time: the time of the output flow;
expiration time: the interval time of the output flow;
total times: total number of output flows;
and (4) calibrating times: the number of flow-voltage curve measurements;
flow rate value: a target value of the flow output;
the remaining times are as follows: the number of fatigue tests remaining.
7. The method of claim 1, further comprising: calibrating the flow probe, specifically:
and forming a data list by the serial number, the flow value and the voltage value of the flow probe, and displaying the data of the flow probe into the list after calibrating one flow point.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759793A (en) * | 2013-12-31 | 2014-04-30 | 广西玉柴机器股份有限公司 | Calibration device and method for gas flow meter |
| CN103900664A (en) * | 2012-12-26 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Anaesthesia machine flow sensor calibration method and device |
| WO2015032325A1 (en) * | 2013-09-03 | 2015-03-12 | 北京谊安医疗系统股份有限公司 | Flow calibration method and system for an anesthesia machine flow sensor |
| CN105371925A (en) * | 2014-08-08 | 2016-03-02 | 北京谊安医疗系统股份有限公司 | An anaesthesia machine flow sensor calibration method |
| CN105769200A (en) * | 2016-03-01 | 2016-07-20 | 浙江大学 | Wearable human respiration measuring system and method |
| CN109945953A (en) * | 2017-12-20 | 2019-06-28 | 北京谊安医疗系统股份有限公司 | A kind of flow sensor method of calibration of equal flows PID control |
-
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- 2020-12-29 CN CN202011594371.9A patent/CN112816034A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900664A (en) * | 2012-12-26 | 2014-07-02 | 北京谊安医疗系统股份有限公司 | Anaesthesia machine flow sensor calibration method and device |
| WO2015032325A1 (en) * | 2013-09-03 | 2015-03-12 | 北京谊安医疗系统股份有限公司 | Flow calibration method and system for an anesthesia machine flow sensor |
| CN103759793A (en) * | 2013-12-31 | 2014-04-30 | 广西玉柴机器股份有限公司 | Calibration device and method for gas flow meter |
| CN105371925A (en) * | 2014-08-08 | 2016-03-02 | 北京谊安医疗系统股份有限公司 | An anaesthesia machine flow sensor calibration method |
| CN105769200A (en) * | 2016-03-01 | 2016-07-20 | 浙江大学 | Wearable human respiration measuring system and method |
| CN109945953A (en) * | 2017-12-20 | 2019-06-28 | 北京谊安医疗系统股份有限公司 | A kind of flow sensor method of calibration of equal flows PID control |
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