CN108759739A - Calibration equipment and its method of calibration - Google Patents
Calibration equipment and its method of calibration Download PDFInfo
- Publication number
- CN108759739A CN108759739A CN201810301156.1A CN201810301156A CN108759739A CN 108759739 A CN108759739 A CN 108759739A CN 201810301156 A CN201810301156 A CN 201810301156A CN 108759739 A CN108759739 A CN 108759739A
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- actuator
- ranging rod
- fixed part
- digital display
- ranging
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 claims abstract description 64
- 238000001514 detection method Methods 0.000 claims abstract description 7
- 230000002159 abnormal effect Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000012937 correction Methods 0.000 claims description 2
- 238000012795 verification Methods 0.000 abstract description 15
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
- G01B21/04—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness by measuring coordinates of points
- G01B21/045—Correction of measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Abstract
The present invention relates to a kind of calibration equipment and its methods of calibration.Calibration equipment includes fixing bracket, ranging rod, digital display meter and actuator.Fixing bracket includes mounting portion, middle part and fixed part, and the both ends of middle part are connected with mounting portion and fixed part respectively, and mounting portion offers the mounting hole for installing displacement sensor.Ranging rod is movably arranged on fixed part.Digital display meter is set on fixed part, and digital display meter is used to detect the displacement of ranging rod, and the displacement of detection gained is shown.Actuator is set on fixed part, and actuator is for driving ranging rod one end, so that ranging rod is close or far from displacement sensor.When calibration equipment verifies device for detecting valve position, digital display meter can show the displacement of ranging rod, and convenient reading, checking procedure is simple, so as to improve verification efficiency.
Description
Technical field
The present invention relates to calibration equipment technical fields, more particularly to a kind of calibration equipment and its method of calibration.
Background technology
Nuclear power station safety full valve belongs to nuclear safety correlation important equipment, it is therefore desirable to valve position detection dress is installed on safety valve
It sets, to characterize the state of safe valve opening.Due to the correctness of device for detecting valve position instruction, set state will be directly affected
Monitoring and judgement, it is therefore desirable to device for detecting valve position periodically be verified, to ensure accuracy and the function of its measurement
Stability.Traditional method of calibration is to use micrometer, and the position for calculating safety valve valve rod repeatedly is needed during verification
It moves, cumbersome, reading is difficult, is easy error, verifies inefficiency.
Invention content
Based on this, it is necessary to the problem of for traditional method of calibration verification inefficiency, provide a kind of calibration equipment and
Its method of calibration.
A kind of calibration equipment, including：
Fixing bracket, the fixing bracket include mounting portion, middle part and fixed part, the both ends of the middle part respectively with
The mounting portion and the fixed part are connected, and the mounting portion offers the mounting hole for installing displacement sensor；
Ranging rod is movably arranged on the fixed part；
Digital display meter is set on the fixed part, and the digital display meter is used to detect the displacement of the ranging rod, and will detection
The displacement of gained is shown；And
Actuator is set on the fixed part, and the actuator is for driving the ranging rod to move, so that the survey
Away from the close or separate institute's displacement sensors of bar.
The actuator includes the first actuator and the second actuator, first driving in one of the embodiments,
Part and second actuator can respectively drive the ranging rod movement, and first actuator drives the ranging rod
Movement velocity is more than the movement velocity that second actuator drives the ranging rod.
First actuator and second actuator are screw rod in one of the embodiments, and described first drives
Moving part is rotatablely arranged in fixed part, and second actuator is rotatablely arranged in first actuator, described
The screw pitch of first actuator is more than the screw pitch of second actuator.
Further include adjusting knob in one of the embodiments, the adjusting knob is rotatablely arranged at the fixation
In portion, the rotation of the adjusting knob is used to select first actuator to drive the ranging rod movement, or described in selection
Second actuator drives the ranging rod movement.
The digital display meter is equipped with switch button in one of the embodiments, and headlamp, institute are equipped in the digital display meter
Display screen of the headlamp for illuminating the digital display meter is stated, the switch button is used to control unlatching and the pass of the headlamp
It closes.
The digital display meter is equipped with reset button in one of the embodiments, and the reset button is described for defining
The zero of digital display meter when ranging rod different location.
Further include sleeve in one of the embodiments, the sleeve is used to be sheathed on the connection of institute's displacement sensors
In portion, the remainder of institute's displacement sensors interconnecting piece is arranged in the mounting hole, so that institute's displacement sensors stretch into
It is fixed value to the length between the mounting portion and the fixed part.
A kind of method of calibration of such as above-mentioned any one calibration equipment, includes the following steps：
Displacement sensor is installed to by mounting hole on fixing bracket；
Distance of the ranging rod with respect to institute's displacement sensors is adjusted, so that the numerical value of change-over panel output signal is the first number
Value, the position for writing down the ranging rod are first position；
Make the ranging rod movement pre-determined distance, it is second value to make the numerical value of the change-over panel output signal, writes down institute
The position for stating ranging rod is the second position；
So that the ranging rod is moved between the first position and the second position, writes down the position of the ranging rod
For the third place；
Calculating said ranging bar is located at the theoretical values of the change-over panel output signal when the third place, described in verification
Whether the numerical value of change-over panel output signal is equal to the theoretical values；
If so, device for detecting valve position is normal, if it is not, then the device for detecting valve position is abnormal.
If the device for detecting valve position is abnormal in one of the embodiments, the range electricity on the change-over panel is adjusted
Position device, so that the numerical value of the rotor plate output signal is equal to the theoretical values, to correct the device for detecting valve position.
Further include after the step of correcting the device for detecting valve position in one of the embodiments,：
The ranging rod is set to move to the first position, whether the numerical value for verifying the change-over panel output signal is equal to the
One numerical value；
If so, the device for detecting valve position correction is correct, if it is not, then the device for detecting valve position corrects mistake.
Above-mentioned calibration equipment and its method of calibration have at least the following advantages：
Support bracket fastened mounting portion offers mounting hole, and displacement sensor is installed on by mounting hole on fixing bracket, position
The mounting means of displacement sensor is consistent with in-site installation, ensures that verification meets the requirement at scene.Calibration equipment carries digital display meter, number
Aobvious table can show the displacement of ranging rod, and convenient reading is easy to operate, not error-prone, can improve verification efficiency.Calibration equipment
When verifying device for detecting valve position, easily operated, checking procedure is simple, so as to improve verification efficiency.Calibration equipment structure letter
Single, small volume is easy to carry.
Description of the drawings
Fig. 1 is the structural schematic diagram of device for detecting valve position in an embodiment；
Fig. 2 is the structural schematic diagram of calibration equipment in an embodiment；
Fig. 3 is that device for detecting valve position is installed to the schematic diagram on calibration equipment；
Fig. 4 is the flow chart of method of calibration in an embodiment.
Specific implementation mode
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, below in conjunction with the accompanying drawings to the present invention
Specific implementation mode be described in detail.Many details are elaborated in the following description in order to fully understand this hair
It is bright.But the invention can be embodied in many other ways as described herein, those skilled in the art can be not
Similar improvement is done in the case of violating intension of the present invention, therefore the present invention is not limited to the specific embodiments disclosed below.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not offered as being unique embodiment.
Unless otherwise defined, all of technologies and scientific terms used here by the article and belong to the technical field of the present invention
The normally understood meaning of technical staff is identical.Used term is intended merely to description tool in the description of the invention herein
The purpose of the embodiment of body, it is not intended that in the limitation present invention.
Referring to Fig. 1, the device for detecting valve position 10 in an embodiment.The device for detecting valve position 10 includes displacement sensor
12, metal o-ring 14, cable 16 and change-over panel 18.Displacement sensor 12 includes main body 121, interconnecting piece 123 and feeler lever 125.
Interconnecting piece 123 is connected with main body 121, and feeler lever 125 is set on interconnecting piece 123.Interconnecting piece 123 is equipped with screw thread, with convenient
The installation of displacement sensor 12.The main body 121 of displacement sensor 12 is electrically connected by cable 16 with change-over panel 18, and metallic gasket is used
Gap between hermetically-sealed cable 16 and main body 121.
Feeler lever 125 can detect the position of safe valve core, and main body 121 can be according to the position of the safe valve core of detection
Generate valve position signal.Valve position signal is transported on change-over panel 18 by cable 16, and valve position signal can be converted to defeated by change-over panel 18
Go out signal, and output signal is sent in master control and is shown.In one embodiment, valve position signal is converted to 4mA by change-over panel 18
The current signal changed to 20mA.Wherein, when safety valve standard-sized sheet, the spy of the spool of safety valve apart from displacement sensor 12
Bar 125 is nearest, and the electric current that change-over panel 18 exports is 4mA.When safety valve progressively closes off, spool and the feeler lever 125 of safety valve
Distance gradually becomes remote, and the electric current that change-over panel 18 exports gradually increases.When safety valve Close All, 18 output current of change-over panel is
20mA。
Fig. 2 and Fig. 3 is please referred to, the calibration equipment 20 in an embodiment, for verifying the measurement of device for detecting valve position 10
Correctness.Specifically, which includes fixing bracket 100, ranging rod 200, digital display meter 300 and actuator 400.
Fixing bracket 100 is used to carry other parts of calibration equipment 20.Fixing bracket 100 include mounting portion 110, in
Between portion 120 and fixed part 130.The both ends of middle part 120 are connected with mounting portion 110 and fixed part 130 respectively.One embodiment
In, fixing bracket 100 is in U-shaped, mounting portion 110 and 130 spaced and parallel setting of fixed part, can facilitate holding for user.Installation
Portion 110 offers mounting hole 112, and the interconnecting piece 123 of displacement sensor 12 can be arranged in mounting hole 112, thus by displacement
Sensor 12 is set on mounting portion 110.After displacement sensor 12 is installed on mounting portion 110, the feeler lever of displacement sensor 12
125 between mounting portion 110 and fixed part 130.
In one embodiment, the side wall of mounting hole 112 is equipped with internal thread, and the interconnecting piece 123 of displacement sensor 12 is screwed together in
In mounting hole 112, to which displacement sensor 12 is set on mounting portion 110.After displacement sensor 12 is threaded to bottom, explanation
Have been mounted to position.Such mounting means of displacement sensor 12 and in-site installation mode are completely the same, to ensure to verify
Accuracy.
In one embodiment, calibration equipment 20 further includes sleeve 500.Nuclear power station safety full valve includes for circuit coolant
The safety valve in safety valve and residual heat removal system on voltage-stablizer, since safety valve has different types, it is therefore desirable to make
Differed with the length of the displacement sensor 12 of different model, and the interconnecting piece 123 of various types of displacement sensors 12.Displacement
When sensor 12 is installed, the sleeve 500 of different length can be selected according to the displacement sensor 12 of different model.First by sleeve
500 are sheathed on the interconnecting piece 123 of displacement sensor 12, and 123 remaining part of interconnecting piece is then screwed together in mounting hole 112 again
It is interior, it thereby may be ensured that the length that displacement sensor 12 is extend between mounting portion 110 and fixed part 130 is fixed value, to protect
The feeler lever of card displacement sensor 12 is entirely located between mounting portion 110 and fixed part 130.In one embodiment, sleeve 500 it is interior
Diameter is more than the diameter of interconnecting piece 125, can facilitate the installation of sleeve 500.
Ranging rod 200 is movably arranged on fixed part 130, and the movement of ranging rod 200 can be with simulating Safety valve core
Movement.In one embodiment, fixed part 130 offers pilot hole (not shown), and ranging rod 200 is slidably disposed in guiding
In hole.Pilot hole is coaxially disposed with mounting hole 112, so that the axis of 200 axis of ranging rod and the feeler lever 125 of displacement sensor 12
It coincides, ranging rod 200 and the feeler lever 125 of displacement sensor 12 are located on sustained height.
Digital display meter 300 is set on fixed part 130, and digital display meter 300 is used to detect the displacement of ranging rod 200, and will detection
The displacement of gained is shown.In one embodiment, headlamp (not shown) is equipped in digital display meter 300, headlamp is for illuminating number
The display screen of aobvious table 300, convenient for being read in dim workplace.In one embodiment, digital display meter 300 is equipped with switch button
310.Switch button 310 is used to control the opening and closing of digital display meter 300.Switch button 310 can be used for control headlamp
Opening and closing.
Specifically, when first time pressing switch button 310, digital display meter 300 is opened, but is now in energy saver mode,
Headlamp is not opened.When second of pressing switch button 310, headlamp is opened, and headlamp can illuminate display screen, so as to
Can also be read in dim workplace.When third time presses switch button 310, digital display meter 300 and headlamp quilt
It closes.
In one embodiment, reset button 320 is additionally provided on digital display meter 300, reset button 320 is for defining ranging rod
200 in different location digital display meter 300 zero, digital display meter 300 can be facilitated to read the displacement moved every time of ranging rod 200,
Convenient for verification.
Actuator 400 is set on fixed part 130, and actuator 400 is for driving ranging rod 200 to move, so that ranging rod
200 close or separate displacement sensors 12.In one embodiment, actuator 400 drives including the first actuator 410 and second
Part 420, the first actuator 410 and the second actuator 420 can respectively drive the movement of ranging rod 200, and the first actuator 410 drives
The movement velocity of dynamic ranging rod 200 is more than the movement velocity of the second actuator 420 driving ranging rod 200.First actuator 410 and
Second actuator 420 drives the movement velocity of ranging rod 200 different, adjusts the position of ranging rod 200 fast precise may be implemented
It sets.
Specifically, the first actuator 410 and the second actuator 420 are screw rod.One end of first actuator 410 is rotatable
Ground is set in fixed part 130.The diameter of first actuator 410 is more than the diameter of the second actuator 420, the second actuator 420
One end be rotatablely arranged in the first actuator 410.The rotation of first actuator 410 can drive the fortune of ranging rod 200
Dynamic, the rotation of the second actuator 420 can also drive the movement of ranging rod 200.Also, the screw pitch of the first actuator 410 is more than
The screw pitch of second actuator 420, the first actuator 410, which rotates a circle, drives the distance of the movement of ranging rod 200, is more than the second driving
Part 420, which rotates a circle, drives the distance of the movement of ranging rod 200, so as to so that the first actuator 410 drives the fortune of ranging rod 200
Dynamic speed is more than the movement velocity of the second actuator 420 driving ranging rod 200.
In one embodiment, calibration equipment 20 further includes adjusting knob 600, and adjusting knob 600 is rotatablely arranged at solid
Determine in portion 130.The rotation of adjusting knob 600 is for selecting the first actuator 410 driving ranging rod 200 to move, or selection the
Two actuators 420 drive ranging rod 200 to move.When adjusting knob 600 selects the first actuator 410 driving ranging rod 200 to move
When, the first actuator 410 is connected with ranging rod 200 at this time, by rotating the first actuator 410, you can rapidly driving is surveyed
It is moved away from bar 200.When adjusting knob 600 selects the second actuator 420 driving ranging rod 200 to move, the second actuator at this time
420 connect with ranging rod 200, by rotating the second actuator 420, you can more slowly ranging rod 200 are driven to move, fine-tuned
Ranging rod 200 is at a distance from displacement sensor 12.Adjusting knob 600 can prevent the first actuator 410 and the second actuator 420
Driving ranging rod 200 interferes with each other when moving, and causes a deviation, influences check results.
Referring to Fig. 4, the present invention also provides a kind of methods of calibration.To realize the method for calibration, above-mentioned verification is used to fill
Set 20.The method of calibration specifically comprises the following steps：
Step S110：Displacement sensor 12 is installed to by mounting hole 112 on fixing bracket 100.
Specifically, according to the difference of sensor model number, the sleeve 500 of different length is selected.Sleeve 500 is sheathed on displacement
On the interconnecting piece 123 of sensor 12,123 remaining part of the interconnecting piece of displacement sensor 12 is then screwed together in mounting hole again
In 112, to which displacement sensor 12 is installed on fixing bracket 100.Then change-over panel 18 is encased in cabinet 30.
Step S120：The distance for adjusting 200 relative displacement transducer 12 of ranging rod, so that the number of 18 output signal of change-over panel
Value is the first numerical value, and the position for writing down ranging rod 200 is first position.
Specifically, the feeler lever 125 of displacement sensor 12 can detect the location information of ranging rod 200, and change-over panel 18 exports
Output signal corresponding with location information.Digital display meter 300 is opened, drives ranging rod 200 to move by actuator 400, conversion
The output signal of plate 18 changes correspondingly.During ranging rod 200 moves, when the numerical value of 18 output signal of change-over panel is the first number
When value, stops driving ranging rod 200 and move, the position for writing down ranging rod 200 at this time is first position.In one embodiment, turn
The output signal for changing plate 18 is current signal, and the first numerical value is 4mA.
Step S130：Ranging rod 200 is set to move pre-determined distance, it is second value to make the numerical value of 18 output signal of change-over panel,
The position for writing down ranging rod 200 is the second position.
Specifically, reset button 320 is pressed on digital display meter 300, so that the numerical value of the display of digital display meter 300 is zero.So
After make ranging rod 200 move pre-determined distance.After ranging rod 200 moves pre-determined distance, the position for writing down ranging rod 200 at this time is the
Two positions.The range potentiometer of change-over panel 18 is adjusted, so that the numerical value of 18 output signal of change-over panel is second value.
In one embodiment, pre-determined distance is the range distance of safety valve.Wherein, the peace on the voltage-stablizer of circuit coolant
The range distance of full valve is 5.8mm, and the range distance of the safety valve in residual heat removal system is 2.21mm.The output of change-over panel 18
Signal is current signal, second value 20mA.
Step S140：So that ranging rod 200 is moved between first position and the second position, writes down the position of ranging rod 200
For the third place.
Specifically, reset button 320 is pressed on digital display meter 300, so that digital display meter 300 is shown as zero.Then it drives
Part 400 drives ranging rod 200 to move between first position and the third place.The position for writing down ranging rod 200 at this time is third
The numerical value of 18 output signal of change-over panel at this time is write down in position.
Step S150：The theoretical values of 18 output signal of change-over panel when ranging rod 200 is located at the third place are calculated, verification turns
Whether the numerical value for changing 18 output signal of plate is equal to theoretical values.
Specifically, the formula tool of the theoretical values of 18 output signal of change-over panel when ranging rod 200 is located at the third place is calculated
Body is：X=(a+b) * c/d, wherein X is the theoretical values of 18 output signal of change-over panel when ranging rod 200 is located at the third place, a
For the first numerical value, b is second value, and c is the distance between the third place and first position, and d is pre-determined distance.One embodiment
In, the third place is located at the centre of first position and the second position, theoretical values 12mA.
When ranging rod 200 is located at the third place, if the numerical value of 18 output signal of change-over panel is identical as theoretical values,
Indicate that device for detecting valve position 10 is normal.If the numerical value of 18 output signal of change-over panel is different from theoretical values, then it represents that examine valve position
It is abnormal to survey device 10.At this time, it may be necessary to the range potentiometer on change-over panel 18 be adjusted, so that the numerical value of rotor plate output signal is equal to
Theoretical values, so as to correct device for detecting valve position 10.
In one embodiment, after correcting device for detecting valve position 10, it is also necessary to device for detecting valve position 10 is further verified,
To ensure that device for detecting valve position 10 is correctly corrected.Specifically, so that ranging rod 200 is moved to first position, verify change-over panel
Whether the numerical value of 18 output signals is equal to the first numerical value.If so, show that device for detecting valve position 10 is correctly corrected, if it is not,
Then show that device for detecting valve position 10 corrects mistake.If device for detecting valve position 10 corrects mistake, need to adjust change-over panel 18 again
On range potentiometer so that the numerical value of 18 output signal of change-over panel be equal to the first numerical value, again correct device for detecting valve position 10.
Above-mentioned calibration equipment 20 and its method of calibration have at least the following advantages：
Displacement sensor 12 by mounting hole 112 installation with fixing bracket 100 on, the mounting means of displacement sensor 12 with
Live actual installation is consistent, ensures that verification meets the requirement at scene.Calibration equipment 20 carries digital display meter 300, and digital display meter 300 can be with
Show the displacement of ranging rod 200, convenient reading is easy to operate, can improve verification efficiency.Digital display meter 300 is equipped with reset button
320, it can be with the zero of digital display meter 300 when positioning distance measuring 200 different location of bar, convenient for verification and reading.Headlamp can ensure
Digital display meter 300 can also be read in dim workplace.
Actuator 400 includes the first actuator 410 and the second actuator 420, and fast precise may be implemented and adjust ranging rod
200 position.Sleeve 500 is adapted to the displacement sensor 12 of different size, so that displacement sensor 12 extend into mounting portion
Length between 110 and fixed part 130 is fixed value, ensures the accuracy of verification.Valve position detection is verified using calibration equipment 20
When device 10, checking procedure is simple, can improve verification efficiency.And calibration equipment 20 is simple in structure, small volume, convenient for taking
Band.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Several embodiments of the invention above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of calibration equipment, which is characterized in that including：
Fixing bracket, the fixing bracket include mounting portion, middle part and fixed part, the both ends of the middle part respectively with it is described
Mounting portion and the fixed part are connected, and the mounting portion offers the mounting hole for installing displacement sensor；
Ranging rod is movably arranged on the fixed part；
Digital display meter is set on the fixed part, and the digital display meter is used to detect the displacement of the ranging rod, and will detection gained
Displacement show；And
Actuator is set on the fixed part, and the actuator is for driving the ranging rod to move, so that the ranging rod
Close to or far from institute's displacement sensors.
2. calibration equipment according to claim 1, which is characterized in that the actuator includes that the first actuator and second drive
Moving part, first actuator and second actuator can respectively drive the ranging rod movement, and first driving
Part drives the movement velocity of the ranging rod to be more than the movement velocity that second actuator drives the ranging rod.
3. calibration equipment according to claim 2, which is characterized in that first actuator and second actuator are equal
For screw rod, first actuator is rotatablely arranged in fixed part, and second actuator is rotatablely arranged at described
In first actuator, the screw pitch of first actuator is more than the screw pitch of second actuator.
4. calibration equipment according to claim 2, which is characterized in that further include adjusting knob, the adjusting knob can turn
It is set to dynamicly on the fixed part, the rotation of the adjusting knob is for selecting first actuator to drive the ranging rod
Movement, or selection second actuator drive the ranging rod movement.
5. calibration equipment according to claim 1, which is characterized in that the digital display meter is equipped with switch button, the number
Headlamp is equipped in aobvious table, the headlamp is used to illuminate the display screen of the digital display meter, and the switch button is for controlling institute
State the opening and closing of headlamp.
6. calibration equipment according to claim 1, which is characterized in that the digital display meter is equipped with reset button, described clear
Zero button is used to define the zero of the digital display meter when ranging rod different location.
7. calibration equipment according to claim 1, which is characterized in that further include sleeve, the sleeve is for being sheathed on institute
On the interconnecting piece of displacement sensors, the remainder of institute's displacement sensors interconnecting piece is arranged in the mounting hole, so that
It is fixed value that institute's displacement sensors, which extend into the length between the mounting portion and the fixed part,.
8. a kind of method of calibration of any one of such as claim 1 to 7 calibration equipment, which is characterized in that include the following steps：
Displacement sensor is installed to by mounting hole on fixing bracket；
Distance of the ranging rod with respect to institute's displacement sensors is adjusted, so that the numerical value of change-over panel output signal is the first numerical value, note
Under the ranging rod position be first position；
Make the ranging rod movement pre-determined distance, it is second value to make the numerical value of the change-over panel output signal, writes down the survey
Position away from bar is the second position；
The ranging rod is set to move between the first position and the second position, the position for writing down the ranging rod is the
Three positions；
Calculating said ranging bar is located at the theoretical values of the change-over panel output signal when the third place, verifies the conversion
Whether the numerical value of plate output signal is equal to the theoretical values；
If so, device for detecting valve position is normal, if it is not, then the device for detecting valve position is abnormal.
9. method of calibration according to claim 8, which is characterized in that if the device for detecting valve position is abnormal, adjust institute
The range potentiometer on change-over panel is stated, so that the numerical value of the rotor plate output signal is equal to the theoretical values, to correct
The device for detecting valve position.
10. method of calibration according to claim 9, which is characterized in that after the step of correcting the device for detecting valve position
Further include：
The ranging rod is set to move to the first position, whether the numerical value for verifying the change-over panel output signal is equal to the first number
Value；
If so, the device for detecting valve position correction is correct, if it is not, then the device for detecting valve position corrects mistake.
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|---|---|---|---|
| CN201810301156.1A CN108759739B (en) | 2018-04-04 | 2018-04-04 | Checking device and checking method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810301156.1A CN108759739B (en) | 2018-04-04 | 2018-04-04 | Checking device and checking method thereof |
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| CN108759739B CN108759739B (en) | 2021-01-26 |
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| CN201810301156.1A Active CN108759739B (en) | 2018-04-04 | 2018-04-04 | Checking device and checking method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506563A (en) * | 2018-11-07 | 2019-03-22 | 上海工业自动化仪表研究院有限公司 | Pivoting support radial clearance and flank of tooth jitter detection apparatus and method |
| CN112012439A (en) * | 2020-08-12 | 2020-12-01 | 广东博智林机器人有限公司 | Plastering device and plastering equipment with same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091724A (en) * | 2015-03-05 | 2015-11-25 | 浙江吉利罗佑发动机有限公司 | LVDT measuring head rapid calibration tool and calibration method |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091724A (en) * | 2015-03-05 | 2015-11-25 | 浙江吉利罗佑发动机有限公司 | LVDT measuring head rapid calibration tool and calibration method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109506563A (en) * | 2018-11-07 | 2019-03-22 | 上海工业自动化仪表研究院有限公司 | Pivoting support radial clearance and flank of tooth jitter detection apparatus and method |
| CN109506563B (en) * | 2018-11-07 | 2024-02-27 | 上海工业自动化仪表研究院有限公司 | Slewing bearing radial clearance and tooth surface runout detection device and method |
| CN112012439A (en) * | 2020-08-12 | 2020-12-01 | 广东博智林机器人有限公司 | Plastering device and plastering equipment with same |
| CN112012439B (en) * | 2020-08-12 | 2022-01-14 | 广东博智林机器人有限公司 | Plastering device and plastering equipment with same |
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| CN108759739B (en) | 2021-01-26 |
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