CN108872916A - A kind of optical current mutual inductor correction of temperature drift test method and device - Google Patents
A kind of optical current mutual inductor correction of temperature drift test method and device Download PDFInfo
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- CN108872916A CN108872916A CN201810579941.3A CN201810579941A CN108872916A CN 108872916 A CN108872916 A CN 108872916A CN 201810579941 A CN201810579941 A CN 201810579941A CN 108872916 A CN108872916 A CN 108872916A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
- G01R35/007—Standards or reference devices, e.g. voltage or resistance standards, "golden references"
Abstract
The invention discloses a kind of optical current mutual inductor correction of temperature drift test methods, including：Standard current transformer and optical current mutual inductor to be modified and power supply are connected in series；Set power supply current parameters and thermostat temperature parameter, thermostat for changing optical current mutual inductor to be modified temperature；Startup power supply, and the current value of power supply is set as the first pre-set current value；The temperature of thermostat is set as preset temperature value, obtains the first measurement current value of optical current mutual inductor acquisition to be modified；The first temperature drift compensation amount of optical current mutual inductor to be modified is obtained according to the first pre-set current value and the first measurement current value.The invention also discloses a kind of optical current mutual inductor correction of temperature drift experimental rigs.Using the embodiment of the present invention, the temperature drift of optical current mutual inductor can be modified, while the temperature stability of optical current mutual inductor can also be assessed.
Description
Technical field
The present invention relates to optical current mutual inductor technical fields more particularly to a kind of optical current mutual inductor correction of temperature drift to try
Test method and apparatus.
Background technique
Optical current mutual inductor have insulation system is simple, small in size, light-weight, the linearity is good, there is no magnetic saturation with
The advantages that ferromagnetic resonance problem, adapts to the requirement of national smart grid development plan, it is mutual to have become electronic type optical current at present
The direction of sensor manufacturer primary study.Most important component is sensor fibre in optical current mutual inductor, and sensor fibre is enclosed
After rotating for several weeks around Primary Conductor, the current signal in tested Primary Conductor can with direct proportion be sensed.But sensor fibre
Verdet constant (characteristic constant of substance) can be fluctuated with temperature, while sensor fibre can also generate temperature cause linearly it is two-fold
It penetrates, causes the electric current of measurement also to fluctuate with temperature, temperature drift problems occur.
Summary of the invention
The purpose of the embodiment of the present invention is that a kind of optical current mutual inductor correction of temperature drift test method and device are provided, it can
The temperature drift of optical current mutual inductor is modified, while the temperature stability of optical current mutual inductor can also be carried out
Assessment.
To achieve the above object, the embodiment of the invention provides a kind of optical current mutual inductor correction of temperature drift test method,
Including:
Standard current transformer and optical current mutual inductor to be modified and power supply are connected in series；
The current parameters of the power supply and the temperature parameter of setting thermostat are set, the thermostat is for changing institute
State the temperature of optical current mutual inductor to be modified；
Start the power supply, and set the current value of the power supply as the first pre-set current value, is i.e. the standard electric at this time
The current value of current transformer acquisition is first pre-set current value；
The temperature of the thermostat is set as preset temperature value, obtains the optical current mutual inductor acquisition to be modified
First measurement current value；
The optical current mutual inductance to be modified is obtained according to first pre-set current value and the first measurement current value
First temperature drift compensation amount of device.
Compared with prior art, optical current mutual inductor correction of temperature drift test method disclosed by the invention is by by standard electric
Current transformer and optical current mutual inductor to be modified and power supply are connected in series, while power supply is to standard current transformer and to be modified
Optical current mutual inductor is powered, then changes the temperature of optical current mutual inductor to be modified by thermostat, thus according to standard
First pre-set current value of current transformer acquisition and the first measurement current value of optical current mutual inductor to be modified, obtain to be repaired
First temperature drift compensation amount of positive optical current mutual inductor.It solves in the prior art because temperature causes optical current mutual inductor to measure
Electric current also fluctuated with temperature, there is the problem of temperature drift in current measurement value, can be to the temperature of optical current mutual inductor
Degree drift is modified, while can also be assessed the temperature stability of optical current mutual inductor.
As an improvement of the above scheme, it is described obtained according to the pre-set current value and the measurement current value it is described to be repaired
After the temperature drift compensation amount of positive optical current mutual inductor, further include：
The preset temperature value of the thermostat is adjusted, obtain the optical current mutual inductor acquisition to be modified second is surveyed
Measure current value；
The optical current mutual inductance to be modified is obtained according to first pre-set current value and the second measurement current value
Second temperature drift compensation amount of device.
As an improvement of the above scheme, it is described obtained according to the pre-set current value and the measurement current value it is described to be repaired
After the temperature drift compensation amount of positive optical current mutual inductor, further include：
The current value for adjusting the power supply is the second pre-set current value；
The preset temperature value is adjusted, the third for obtaining the optical current mutual inductor acquisition to be modified measures current value；
The optical current mutual inductance to be modified is obtained according to second pre-set current value and third measurement current value
The third temperature drift compensation amount of device.
As an improvement of the above scheme, the current parameters of the setting power supply specifically include：
According to the current measurement range of the optical current mutual inductor to be modified, the current parameters of the power supply are set；Its
In, the current parameters include curent change range, electric current initial value and current scanning step-length.
As an improvement of the above scheme, the temperature parameter of the setting thermostat specifically includes：
Temperature requirement is applied according to the optical current mutual inductor to be modified, sets the temperature ginseng of the thermostat
Number；Wherein, the temperature parameter includes range of temperature, temperature initial value and temperature scanning step-length.
As an improvement of the above scheme, the temperature of the thermostat is adjusted by temperature control system.
As an improvement of the above scheme, the electric current of the power supply is adjusted by power control system.
To achieve the goals above, the embodiment of the invention also provides a kind of tests of optical current mutual inductor correction of temperature drift to fill
It sets, including：
Standard current transformer, for acquiring electric current；
Optical current mutual inductor to be modified, for acquiring electric current；
Power supply, for powering to the standard current transformer and the optical current mutual inductor to be modified；
Thermostat, for changing the temperature of optical current mutual inductor to be modified；
Data processing equipment, for obtaining the electric current of the standard current transformer, the optical current mutual inductance to be modified
The temperature of the electric current of device and the thermostat.
Compared with prior art, optical current mutual inductor correction of temperature drift experimental rig disclosed by the invention, by by standard
Current transformer and optical current mutual inductor to be modified and power supply are connected in series, while power supply is to standard current transformer and to be repaired
Positive optical current mutual inductor is powered, then changes the temperature of optical current mutual inductor to be modified by thermostat, thus at data
Manage the first pre-set current value that device is acquired according to standard current transformer and optical current mutual inductor to be modified acquires first
Current value is measured, the first temperature drift compensation amount of optical current mutual inductor to be modified is obtained.It solves in the prior art because temperature is led
The electric current of optical current mutual inductor measurement is caused also to fluctuate with temperature, the problem of temperature drift occurs in current measurement value, can
The temperature drift of optical current mutual inductor is modified, while the temperature stability of optical current mutual inductor can also be carried out
Assessment.
As an improvement of the above scheme, the optical current mutual inductor correction of temperature drift experimental rig further includes temperature control system
System, the temperature control system are used to adjust the temperature of the thermostat.
As an improvement of the above scheme, the optical current mutual inductor correction of temperature drift experimental rig further includes power supply control system
System, the power control system are used to adjust the electric current of the power supply.
Detailed description of the invention
Fig. 1 is a kind of flow chart of optical current mutual inductor correction of temperature drift test method provided in an embodiment of the present invention；
Fig. 2 is adjustment temperature in a kind of optical current mutual inductor correction of temperature drift test method provided in an embodiment of the present invention
The flow chart of correction of temperature drift test；
Fig. 3 is adjustment temperature in a kind of optical current mutual inductor correction of temperature drift test method provided in an embodiment of the present invention
Another flow chart of correction of temperature drift test；
Fig. 4 be in a kind of optical current mutual inductor correction of temperature drift test method provided in an embodiment of the present invention adjust electric current and
The flow chart of the correction of temperature drift test of temperature；
Fig. 5 be in a kind of optical current mutual inductor correction of temperature drift test method provided in an embodiment of the present invention adjust electric current and
Another flow chart of the correction of temperature drift test of temperature；
Fig. 6 is a kind of structural block diagram of optical current mutual inductor correction of temperature drift experimental rig provided in an embodiment of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
Embodiment one
It is a kind of stream of optical current mutual inductor correction of temperature drift test method provided in an embodiment of the present invention referring to Fig. 1, Fig. 1
Cheng Tu；Including：
S1, standard current transformer and optical current mutual inductor to be modified and power supply are connected in series；
The temperature parameter of S2, the current parameters of the setting power supply and setting thermostat, the thermostat is for changing
Become the temperature of the optical current mutual inductor to be modified；
S3, the starting power supply, and set the current value of the power supply as the first pre-set current value, the i.e. standard at this time
The current value of current transformer acquisition is first pre-set current value；
S4, the temperature for setting the thermostat obtain the optical current mutual inductor to be modified and adopt as preset temperature value
First measurement current value of collection；
S5, according to first pre-set current value and the first measurement current value, to obtain the optical current to be modified mutual
First temperature drift compensation amount of sensor.
It is worth noting that the standard current transformer of use, which can be, will not occur temperature in the embodiment of the present invention
Drift phenomenon, that is, current measurement value will not be with the current transformer that varies with temperature, from without with ambient temperature
Variation or curent change lead to temperature change and cause the problem of the inaccuracy of itself current measurement value, and then can be with optics
Current transformer compares.
Specifically, in step sl, by the standard current transformer and the optical current mutual inductor to be modified and institute
Power supply series connection is stated, to form a closed circuit.Preferably, the power supply is connect with the power control system, is passed through
The power control system adjusts the electric current of the power supply.
Specifically, in step s 2, setting the current parameters of the power supply.It preferably, can be according to the light to be modified
The current measurement range for learning current transformer, sets the current parameters of the power supply；Wherein, the current parameters include that electric current becomes
Change range, electric current initial value and current scanning step-length.Preferably, in the present embodiment, the curent change range can be 0A
~1000A, the electric current initial value can be 0A, and the current scanning step-length can be 10 steps, but in other embodiments, institute
Stating curent change range, the electric current initial value and the current scanning step-length can be any given, all in protection of the invention
In range.The power supply scans altogether 11 times, then second of scanning (is set since the electric current initial value 0A to 1000A
The current value of the power supply) be 100A, and so on, it is preferred that the power supply can also from the curent change range 0A~
Other numerical value in 1000A start to scan.
The temperature parameter of the thermostat is concurrently set, the thermostat is for changing the optical current to be modified
The temperature of mutual inductor.Preferably, temperature requirement can be applied according to the optical current mutual inductor to be modified, sets the perseverance
The temperature parameter of warm device；Wherein, the temperature parameter includes range of temperature, temperature initial value and temperature scanning step-length.
Preferably, in the present embodiment, the range of temperature can be -30 DEG C~50 DEG C, and the temperature initial value is -30 DEG C,
The temperature scanning step-length is 9, but in other embodiments, the range of temperature, the temperature initial value and the temperature
Spending scanning step can be any given, all within the scope of the present invention.The thermostat from the temperature initial value be-
30 DEG C of beginnings, to 50 DEG C of scanning 9 times altogether, then second of scanning (setting the temperature of the thermostat) is -20 DEG C, with this
Analogize, it is preferred that the thermostat can also be swept since other numerical value in -30 DEG C~50 DEG C of the range of temperature
It retouches.
Specifically, in step s3, starting the power supply, the current value of the power supply is set at this time as the first predetermined current
Value, it is preferred that first pre-set current value can be the electric current initial value 0A, be also possible to the curent change range 0A
Other numerical value in~1000A.I.e. the current value of the standard current transformer acquisition is first predetermined current at this time
The current value of value, the optical current mutual inductor acquisition to be modified is first pre-set current value.
Specifically, be preset temperature value by the temperature that temperature control system adjusts the thermostat in step s 4,
The thermostat for changing the optical current mutual inductor to be modified temperature.It preferably, can be by the preset temperature
Value is set as -30 DEG C of the temperature initial value, or the numerical value being set as in -30 DEG C of the range of temperature~50 DEG C.This
When, the Verdet constant (characteristic constant of substance) of the optical current mutual inductor to be modified can be fluctuated with temperature, simultaneously
Sensor fibre can also generate temperature and cause linear birefrigence, cause the electric current of measurement also to fluctuate with temperature, temperature drift occur and ask
Topic.Then the first measurement current value of the optical current mutual inductor acquisition to be modified is obtained.
Specifically, in step s 5, being obtained according to first pre-set current value and the first measurement current value described
First temperature drift compensation amount of optical current mutual inductor to be modified, the first temperature drift compensation amount are the optical current to be modified
Current differential of the mutual inductor in preset temperature value and the standard current transformer.This optics to be modified is being continued to use backward
When operation of current transformers, when the optical current mutual inductor to be modified meets preset temperature value, in the optics to be modified
(first pre-set current value is greater than the first measurement current value) is added on the current value of current transformer acquisition or is subtracted
(first pre-set current value is less than the first measurement current value) described first temperature drift compensation amount, can be obtained described to be repaired
The electric current correction value of positive optical current mutual inductor, the electric current correction value is the normal of the optical current mutual inductor to be modified
Measured value.
Preferably, referring to fig. 2, Fig. 2 is a kind of optical current mutual inductor correction of temperature drift test provided in an embodiment of the present invention
The flow chart of the correction of temperature drift test of temperature is adjusted in method；The optical current mutual inductor correction of temperature drift test method is also wrapped
It includes：
The preset temperature value of S611, the adjustment thermostat obtain the optical current mutual inductor acquisition to be modified
Second measurement current value；
S612, the optical current to be modified is obtained according to first pre-set current value and the second measurement current value
Second temperature drift compensation amount of mutual inductor.
Specifically, in step S611~S612, in the case where the current value of the power supply remains unchanged, by continuous
The preset temperature value for adjusting the thermostat obtains the optical current mutual inductor to be modified in same electric current, different temperatures
Temperature drift compensation amount, specific work process at this time can be found in Fig. 3.
Further, referring to fig. 4, Fig. 4 is a kind of optical current mutual inductor correction of temperature drift examination provided in an embodiment of the present invention
The flow chart of the correction of temperature drift test of electric current and temperature is adjusted in proved recipe method；Optical current mutual inductor correction of temperature drift test side
Method further includes：
S621, the current value for adjusting the power supply are the second pre-set current value；
S622, the adjustment preset temperature value, the third for obtaining the optical current mutual inductor acquisition to be modified measure electricity
Flow valuve；
S623, the optical current to be modified is obtained according to second pre-set current value and third measurement current value
The third temperature drift compensation amount of mutual inductor.
Specifically, in step S621~S623, in the case where the current value of the power supply remains unchanged, by continuous
The preset temperature value for adjusting the thermostat obtains the optical current mutual inductor to be modified in same electric current, different temperatures
Temperature drift compensation amount.Then in the case where the temperature of the thermostat remains unchanged, by constantly adjusting the power supply
Electric current, obtains the optical current mutual inductor to be modified in the temperature drift compensation amount of same temperature, different electric current, specific work at this time
It can be found in Fig. 5 as process.Concrete outcome can be found in table 1, and the compensation rate in table 1 indicates the standard current transformer when being negative value
Measured value be less than the optical current mutual inductor to be modified measured value.
Table 1：The temperature drift compensation amount of different temperatures, different electric currents
Then, continue to use backward the optical current mutual inductor to be modified work when, by table 1 can be obtained it is described to
The electric current correction value (measured value of optical current mutual inductor to be modified+temperature drift compensation amount) of optical current mutual inductor is corrected, it is described
Electric current correction value is the normal measurements of the optical current mutual inductor to be modified.
When it is implemented, by the way that standard current transformer and optical current mutual inductor to be modified and power supply to be connected in series,
Power supply is to then standard current transformer and optical current mutual inductor to be modified power supply simultaneously, then is changed by thermostat to be repaired
The temperature of positive optical current mutual inductor, thus the first pre-set current value and optics to be modified that are acquired according to standard current transformer
First measurement current value of current transformer, obtains the first temperature drift compensation amount of optical current mutual inductor to be modified.
Compared with prior art, optical current mutual inductor correction of temperature drift test method disclosed by the invention, solves existing
Because the electric current that temperature causes optical current mutual inductor to measure also is fluctuated with temperature in technology, there is temperature drift in current measurement value
The problem of shifting, can be modified the temperature drift of optical current mutual inductor, while can also be to optical current mutual inductor
Temperature stability is assessed.
Embodiment two
It is a kind of knot of optical current mutual inductor correction of temperature drift experimental rig provided in an embodiment of the present invention referring to Fig. 6, Fig. 6
Structure block diagram；Including：
Standard current transformer 1, for acquiring electric current；
Optical current mutual inductor 2 to be modified, for acquiring electric current；
Power supply 3, for powering to the standard current transformer 1 and the optical current mutual inductor to be modified 2；
Thermostat 4, for changing the temperature of optical current mutual inductor 2 to be modified；
Data processing equipment 5, electric current, the optical current to be modified for obtaining the standard current transformer 1 are mutual
The temperature of the electric current of sensor 2 and the thermostat 4.
Preferably, the optical current mutual inductor correction of temperature drift experimental rig further includes temperature control system 6, the temperature
Control system 6 is used to adjust the temperature of the thermostat 4.
Preferably, the optical current mutual inductor correction of temperature drift experimental rig further includes power control system 7, the power supply
Control system 7 is used to adjust the electric current of the power supply 3.
It is worth noting that the standard current transformer of use, which can be, will not occur temperature in the embodiment of the present invention
Drift phenomenon, that is, current measurement value will not be with the current transformer that varies with temperature, from without with ambient temperature
Variation or curent change lead to temperature change and cause the problem of the inaccuracy of itself current measurement value, and then can be with optics
Current transformer compares.
Specifically, the standard current transformer 1 and the optical current mutual inductor to be modified 2 are gone here and there with the power supply 3
Connection connection, to form a closed circuit.Preferably, the power supply 3 is connect with the power control system 7, passes through the electricity
Source control system 7 adjusts the electric current of the power supply 3.
Specifically, setting the current parameters of the power supply 3.It preferably, can be according to the optical current mutual inductance to be modified
The current measurement range of device 2 sets the current parameters of the power supply 3；Wherein, the current parameters include curent change range,
Electric current initial value and current scanning step-length.Preferably, in the present embodiment, the curent change range can be 100A~
1000A, the electric current initial value can be 100A, and the current scanning step-length can be 10 steps, but in other embodiments, institute
Stating curent change range, the electric current initial value and the current scanning step-length can be any given, all in protection of the invention
In range.The power supply 3 is scanned altogether 10 times to 1000A since the electric current initial value 100A, is then scanned (i.e. for second
Set the current value of the power supply 3) as 200A, and so on, it is preferred that the power supply 3 can also be from the curent change model
The other numerical value enclosed in 100A~1000A start to scan.
The temperature parameter of the thermostat 4 is concurrently set, the thermostat 4 is for changing the optics electricity to be modified
The temperature of current transformer 2.Preferably, temperature requirement can be applied according to the optical current mutual inductor 2 to be modified, sets institute
State the temperature parameter of thermostat 4；Wherein, the temperature parameter includes range of temperature, temperature initial value and temperature scanning
Step-length.Preferably, in the present embodiment, the range of temperature can be -30 DEG C~50 DEG C, and the temperature initial value is -
30 DEG C, the temperature scanning step-length is 9, but in other embodiments, the range of temperature, the temperature initial value and institute
Stating temperature scanning step-length can be any given, all within the scope of the present invention.The thermostat 4 is initial from the temperature
Value is -30 DEG C of beginnings, to 50 DEG C of scanning 9 times altogether, then scans (setting the temperature of the thermostat 4) as -20 second
DEG C, and so on, it is preferred that the thermostat 4 can also be from other numbers in -30 DEG C~50 DEG C of the range of temperature
Value starts to scan.
Specifically, starting the power supply 3, the current value of the power supply 3 is set at this time as the first pre-set current value, preferably
, first pre-set current value can be the electric current initial value 100A, be also possible to the curent change range 100A~
Other numerical value in 1000A.The current value that i.e. standard current transformer 1 acquires at this time is first predetermined current
Value, the current value that the optical current mutual inductor 2 to be modified acquires is first pre-set current value.The data processing dress
Set 5 acquisitions, first pre-set current value.
Specifically, being preset temperature value, the constant temperature by the temperature that temperature control system 6 adjusts the thermostat 4
Device 4 for changing the optical current mutual inductor 2 to be modified temperature.Preferably, the preset temperature value can be arranged
For -30 DEG C of the temperature initial value, or the numerical value being set as in -30 DEG C of the range of temperature~50 DEG C.At this point, described
The Verdet constant (characteristic constant of substance) of optical current mutual inductor 2 to be modified can be fluctuated with temperature, while sense light
Fibre can also generate temperature and cause linear birefrigence, cause the electric current of measurement also to fluctuate with temperature, temperature drift problems occur.Then
The data processing equipment 5 obtains the first measurement current value that the optical current mutual inductor to be modified 2 acquires.
In the case where the current value of the power supply 3 remains unchanged, by described in the temperature control system 6 constantly adjustment
The preset temperature value of thermostat 4, the data processing equipment 5 obtain the optical current mutual inductor to be modified 2 in same electricity
The temperature drift compensation amount of stream, different temperatures.Then in the case where the temperature of the thermostat 4 remains unchanged, pass through the electricity
Source control system 7 constantly adjusts the electric current of the power supply 3, and it is mutual that the data processing equipment 5 obtains the optical current to be modified
Temperature drift compensation amount of the sensor 2 in same temperature, different electric currents.Concrete outcome can be found in table 1, when the compensation rate in table 1 is negative value
Indicate that the measured value of the standard current transformer 1 is less than the measured value of the optical current mutual inductor 2 to be modified.
Table 1：The temperature drift compensation amount of different temperatures, different electric currents
Then, it when continuing to use the optical current mutual inductor to be modified 2 work backward, can be obtained by table 1 described
The electric current correction value (measured value of optical current mutual inductor 2 to be modified+temperature drift compensation amount) of optical current mutual inductor 2 to be modified,
The electric current correction value is the normal measurements of the optical current mutual inductor to be modified 2.
When it is implemented, by by standard current transformer 1 and optical current mutual inductor to be modified 2 and 3 company of series connection of power supply
It connects, while power supply 3 is powered to then standard current transformer 1 and optical current mutual inductor to be modified 2, then passes through thermostat 4
Change the temperature of optical current mutual inductor 2 to be modified, thus data processing equipment 5 acquired according to standard current transformer 1
The first measurement current value that one pre-set current value and optical current mutual inductor to be modified 2 acquire, it is mutual to obtain optical current to be modified
First temperature drift compensation amount of sensor 2.
Compared with prior art, optical current mutual inductor correction of temperature drift experimental rig disclosed by the invention, solves existing
Because the electric current that temperature causes optical current mutual inductor to measure also is fluctuated with temperature in technology, there is temperature drift in current measurement value
The problem of shifting, can be modified the temperature drift of optical current mutual inductor, while can also be to optical current mutual inductor
Temperature stability is assessed.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (10)
1. a kind of optical current mutual inductor correction of temperature drift test method, which is characterized in that including：
Standard current transformer and optical current mutual inductor to be modified and power supply are connected in series；
Set the power supply current parameters and setting thermostat temperature parameter, the thermostat for changing it is described to
Correct the temperature of optical current mutual inductor；
Start the power supply, and set the current value of the power supply as the first pre-set current value, i.e., the normalized current is mutual at this time
The current value of sensor acquisition is first pre-set current value；
The temperature of the thermostat is set as preset temperature value, obtains the first of the optical current mutual inductor acquisition to be modified
Measure current value；
The optical current mutual inductor to be modified is obtained according to first pre-set current value and the first measurement current value
First temperature drift compensation amount.
2. optical current mutual inductor correction of temperature drift test method as described in claim 1, which is characterized in that described according to
After pre-set current value and the measurement current value obtain the temperature drift compensation amount of the optical current mutual inductor to be modified, further include：
The preset temperature value of the thermostat is adjusted, the second measurement electricity of the optical current mutual inductor acquisition to be modified is obtained
Flow valuve；
The optical current mutual inductor to be modified is obtained according to first pre-set current value and the second measurement current value
Second temperature drift compensation amount.
3. optical current mutual inductor correction of temperature drift test method as described in claim 1, which is characterized in that described according to
After pre-set current value and the measurement current value obtain the temperature drift compensation amount of the optical current mutual inductor to be modified, further include：
The current value for adjusting the power supply is the second pre-set current value；
The preset temperature value is adjusted, the third for obtaining the optical current mutual inductor acquisition to be modified measures current value；
The optical current mutual inductor to be modified is obtained according to second pre-set current value and third measurement current value
Third temperature drift compensation amount.
4. optical current mutual inductor correction of temperature drift test method as described in claim 1, which is characterized in that described in the setting
The current parameters of power supply specifically include：
According to the current measurement range of the optical current mutual inductor to be modified, the current parameters of the power supply are set；Wherein, institute
Stating current parameters includes curent change range, electric current initial value and current scanning step-length.
5. optical current mutual inductor correction of temperature drift test method as described in claim 1, which is characterized in that described in the setting
The temperature parameter of thermostat specifically includes：
Temperature requirement is applied according to the optical current mutual inductor to be modified, sets the temperature parameter of the thermostat；Its
In, the temperature parameter includes range of temperature, temperature initial value and temperature scanning step-length.
6. optical current mutual inductor correction of temperature drift test method as claimed in claim 2, which is characterized in that controlled by temperature
The temperature of thermostat described in system call interception.
7. optical current mutual inductor correction of temperature drift test method as claimed in claim 3, which is characterized in that controlled by power supply
The electric current of power supply described in system call interception.
8. a kind of optical current mutual inductor correction of temperature drift experimental rig, which is characterized in that including：
Standard current transformer, for acquiring electric current；
Optical current mutual inductor to be modified, for acquiring electric current；
Power supply, for powering to the standard current transformer and the optical current mutual inductor to be modified；
Thermostat, for changing the temperature of optical current mutual inductor to be modified；
Data processing equipment, for obtaining the electric current of the standard current transformer, the optical current mutual inductor to be modified
The temperature of electric current and the thermostat.
9. optical current mutual inductor correction of temperature drift experimental rig as claimed in claim 8, which is characterized in that the optical current
Mutual inductor correction of temperature drift experimental rig further includes temperature control system, and the temperature control system is for adjusting the thermostat
Temperature.
10. optical current mutual inductor correction of temperature drift experimental rig as claimed in claim 8, which is characterized in that the optics electricity
Current transformer correction of temperature drift experimental rig further includes power control system, and the power control system is for adjusting the power supply
Electric current.
Priority Applications (1)
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| CN111045251A (en) * | 2019-12-19 | 2020-04-21 | 武汉华星光电技术有限公司 | Side-in backlight structure and display device |
| CN112858980A (en) * | 2021-01-13 | 2021-05-28 | 国家电网有限公司华东分部 | Gateway metering abnormity diagnosis method combining sampling and big data |
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