CN105937920B - The sensor to be drifted about by long-term cold put shows modification method - Google Patents
The sensor to be drifted about by long-term cold put shows modification method Download PDFInfo
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- CN105937920B CN105937920B CN201610231275.5A CN201610231275A CN105937920B CN 105937920 B CN105937920 B CN 105937920B CN 201610231275 A CN201610231275 A CN 201610231275A CN 105937920 B CN105937920 B CN 105937920B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The present invention provides a kind of sensor to be drifted about by long-term cold put and shows modification method, and this method comprises the following steps：Step 1, sensor output display scope CLow ~ CHigh is preset, the concentration value of note sensor internal detection is Ct；Step 2, the initial concentration value Co exported on sensor after electric preheating is gathered；Step 3, initial concentration value Co and sensor output display scope CLow ~ CHigh are contrasted, obtains static modification difference Dlt；Step 4, according to the static modification difference Dlt of acquisition, the external display output concentration for calculating sensor is：Cout=Ct+Dlt.The present invention calculates static modification difference Dlt, the output display of the sensor to go against accepted conventions caused by long-term cold put is drifted about is adapted in normal ranges, user is obtained good usage experience by default sensor output display scope CLow ~ CHigh.
Description
Technical field
The present invention relates to a kind of modification method, specifically, relate to a kind of sensor to be drifted about by long-term cold put and shows
Show modification method.
Background technology
Sensor easily produces drift, and the sensor or sensor module for having calculation function can not make an exception.It is but this
Sensor can be modified by certain algorithm to some less drifts.Such as the sensor of measurement natural gas leaking,
Its most of the time is in do not leak in the case of, such case can pass through the statistics signal acquisition value of continuous several days
To correct the zero point of sensor.
Theoretically, under the determinand of the same concentration of identical environment, each output quantity of sensor should be the same.
But output quantity and steady operation one section of some sensors of actually some classifications when just being worked on power after placing for a long time
Output quantity difference after time is bigger, although the working environment and testing concentration residing for it does not change.Corrected by preheating
Be all a little less drift, and can just correct in the short period of time.Because this drift is bigger, cannot lean on pre-
Heat is corrected, and can not be corrected in the short time, and the value that operative sensor exports after preheat is a value to go against accepted conventions, so as to
Give client one very bad usage experience.
In order to solve the problem present on, people are seeking a kind of preferable technical solution always.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided it is a kind of be easily achieved drift about because of long-term cold put
Sensor shows modification method, solves the problems, such as that the long-term cold sensor put goes against accepted conventions output after preheat.
To achieve these goals, the technical solution adopted in the present invention is：A kind of sensing drifted about by long-term cold put
Device shows modification method, and the sensor to be drifted about by long-term cold put shows that modification method comprises the following steps：
Step 1, sensor output display scope CLow ~ CHigh is preset, the concentration value of note sensor internal detection is Ct；
Step 2, the initial concentration value Co exported on sensor after electric preheating is gathered；
Step 3, initial concentration value Co and sensor output display scope CLow ~ CHigh are contrasted, by the following method
Obtain static modification difference Dlt；
If Co<CLow, Dlt=CLow-Co；
If CLow≤Co≤CHigh, Dlt=0；
If Co>CHigh, Dlt=CHigh-Co；
Step 4, according to the static modification difference Dlt of acquisition, the external display output concentration for calculating sensor is：Cout=
Ct+Dlt。
Based on above-mentioned, this method also includes step 5：Cout and CLow are contrasted, work as Cout<It is static during CLow
It is dynamic corrections difference Dlt1, Dlt1=Dlt+CLow-Cout to correct difference Dlt increases, and the externally display for calculating sensor is defeated
Going out concentration is：Cout1=Ct+Dlt1.
The present invention has prominent substantive distinguishing features and marked improvement compared with the prior art, and specifically, the present invention is by pre-
If sensor output display scope CLow ~ CHigh, static modification difference Dlt and dynamic corrections difference Dlt1 is calculated, will be long-term cold
Put and the output display of the sensor to go against accepted conventions caused by drifting about is adapted in normal ranges, so that user obtains good make
With experience.
Embodiment
Below by embodiment, technical scheme is described in further detail.
A kind of sensor to be drifted about by long-term cold put shows modification method, and this method comprises the following steps：
Step 1, sensor output display scope CLow ~ CHigh is preset, the concentration value of note sensor internal detection is Ct；
Step 2, the initial concentration value Co exported on sensor after electric preheating is gathered；
Step 3, initial concentration value Co and sensor output display scope CLow ~ CHigh are contrasted, by the following method
Obtain static modification difference Dlt；
If Co<CLow, Dlt=CLow-Co；
If CLow≤Co≤CHigh, Dlt=0；
If Co>CHigh, Dlt=CHigh-Co；
Step 4, according to the static modification difference Dlt of acquisition, the external display output concentration for calculating sensor is：Cout=
Ct+Dlt。
Static modification difference Dlt is the value drawn on sensor after electricity stabilization, is just a definite value after upper electricity, works as biography
During the concentration value Ct changes of detection inside sensor, the external display output concentration C out of sensor can change therewith, if preset
When scope CLow ~ CHigh lower limit CLow is also the lower limit of reasonable concentration simultaneously, Cout may go out with Ct reduction
Now it is less than CLow situation, Cout now occurs as soon as irrational value less than CLow, for example Cout is negative when CLow is zero
Value, and it is irrational that concentration, which is negative value,.
In order to avoid it is above-mentioned unreasonable the occurrence of, further, this method also includes step 5：By Cout and CLow
Contrasted, work as Cout<During CLow, static modification difference Dlt increase for dynamic corrections difference Dlt1, Dlt1=Dlt+CLow-
Cout, the external display output concentration for calculating sensor are：Cout1=Ct+Dlt1.
It should be noted that：This method is applied to the sensor with zero offset capability, and but not each passes
All there is so big drift in sensor, its drift value of most sensors or very little in long-term cold postpone, and have little influence on just
Often use.But if an output accurate sensor of concentration is exactly opened under the concentration beyond presetting range CLow ~ CHigh
Machine, then the concentration that should normally export being adapted within presetting range CLow ~ CHigh by the inventive method mistake on the contrary,
Now the inventive method has just played reaction.Therefore, it is necessary to the problem of considering during specifically used the inventive method
Have：Whether presetting range CLow ~ CHigh is suitable；Sensor is started shooting general under the concentration beyond presetting range CLow ~ CHigh
Rate；Concentration during start beyond presetting range CLow ~ CHigh is long-term existence or disappeared after occurring in short-term；Sensor is in length
Phase place after just upper electricity occur going against accepted conventions the ratio of drift；The self-recision cycle of sensor.
Finally it should be noted that:The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, those of ordinary skills in the art should understand that：Still
The embodiment of the present invention can be modified or equivalent substitution is carried out to some technical characteristics；Without departing from this hair
The spirit of bright technical scheme, it all should cover among the claimed technical scheme scope of the present invention.
Claims (2)
1. a kind of sensor to be drifted about by long-term cold put shows modification method, it is characterised in that this drifts about because of long-term cold put
Sensor show modification method include step：
Step 1, sensor output display scope CLow ~ CHigh is preset, the concentration value of note sensor internal detection is Ct；
Step 2, the initial concentration value Co exported on sensor after electric preheating is gathered；
Step 3, initial concentration value Co and sensor output display scope CLow ~ CHigh are contrasted, obtained by the following method
Static modification difference Dlt；
If Co<CLow, Dlt=CLow-Co；
If CLow≤Co≤CHigh, Dlt=0；
If Co>CHigh, Dlt=CHigh-Co；
Step 4, according to the static modification difference Dlt of acquisition, the external display output concentration for calculating sensor is：Cout=Ct+
Dlt。
2. the sensor according to claim 1 to be drifted about by long-term cold put shows modification method, it is characterised in that：The party
Method also includes step 5：Cout and CLow are contrasted, work as Cout<During CLow, static modification difference Dlt increases are dynamic
Difference Dlt1, Dlt1=Dlt+CLow-Cout is corrected, the external display output concentration for calculating sensor is：Cout1=Ct+
Dlt1。
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| CN201610231275.5A CN105937920B (en) | 2016-04-14 | 2016-04-14 | The sensor to be drifted about by long-term cold put shows modification method |
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| CN201610231275.5A CN105937920B (en) | 2016-04-14 | 2016-04-14 | The sensor to be drifted about by long-term cold put shows modification method |
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| CN105937920B true CN105937920B (en) | 2018-01-09 |
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| DE10155430B4 (en) * | 2001-11-12 | 2006-12-14 | Siemens Ag | Adaptation of compensation data to reduce positional errors in machine tools and robots |
| KR101233160B1 (en) * | 2005-10-24 | 2013-02-15 | 엘지전자 주식회사 | Method for Controlling Course of The Clothes Dryer |
| CN101446503A (en) * | 2007-11-27 | 2009-06-03 | 中芯国际集成电路制造(上海)有限公司 | Method for indicating values of corrector and device thereof |
| CN101493346B (en) * | 2009-02-16 | 2012-09-19 | 中国人民解放军空军航空大学 | Indicating instrument precision correcting method and off-line maintenance bench |
| US9075029B2 (en) * | 2011-01-31 | 2015-07-07 | Scott Technologies, Inc. | System and method for automatically adjusting gas sensor settings and parameters |
| CN102539925A (en) * | 2010-12-30 | 2012-07-04 | 北京中科微纳物联网技术股份有限公司 | High-accuracy dynamic testing method for sensor |
| CN104007290B (en) * | 2014-06-16 | 2016-06-15 | 哈尔滨工业大学 | A kind of speedometer precision detection system based on database simulation actual vehicle speed and method |
| CN104075770A (en) * | 2014-06-24 | 2014-10-01 | 湖南大学 | Electronic analytical balance zero tracking device and method |
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