CN206362297U - A kind of displacement transducer demarcation loading attachment - Google Patents
A kind of displacement transducer demarcation loading attachment Download PDFInfo
- Publication number
- CN206362297U CN206362297U CN201621430622.9U CN201621430622U CN206362297U CN 206362297 U CN206362297 U CN 206362297U CN 201621430622 U CN201621430622 U CN 201621430622U CN 206362297 U CN206362297 U CN 206362297U
- Authority
- CN
- China
- Prior art keywords
- displacement
- sensor
- fixed
- displacement transducer
- portable plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Landscapes
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a kind of displacement transducer demarcation loading attachment, the loading attachment includes substrate, it is arranged with ball-screw, grating scale and line slideway on substrate in parallel successively, portable plate is provided with above line slideway, grating scale and ball-screw, the portable plate is driven by ball-screw and moved along line slideway；The fixed component for being respectively used to fix stay wire sensor, angle displacement sensor and spring automatic telescopic displacement transducer and be allowed to follow portable plate movement to produce bracing wire displacement, angle displacement and spring automatic telescopic displacement is provided with substrate or on portable plate.The position of three kinds of displacement transducer fixed components sets compact and reasonable in loading attachment of the present utility model.Using loading attachment of the present utility model and scaling method, the demarcation of the displacement transducer of completion plurality of specifications that can be rapidly and efficiently and range, the convenient disassembly of sensor is simple to operate, and data processing is directly perceived rapidly.Be particularly suitable for use in the demarcation of vehicle impact testing displacement transducer.
Description
Technical field
The utility model is related to a kind of loading attachment for being used to demarcate displacement transducer, belongs to the demarcation field of sensor.
Background technology
Transducer calibration is exactly the process spent surely to sensor using the higher leveled standard utensil of precision, so as to establish
Corresponding relation between sensor output quantity and defeated people amount.The error relationship under different use conditions is also determined simultaneously.Demarcation
Basic skills is to produce known non electrical quantity as input quantity by the use of reference instrument, be input in sensor to be calibrated, then
The output quantity of sensor is compared with the standard volume of input, series of standards data or curve is obtained.It is true according to test data
Determine the property indices of sensor, be actually also to determine the measurement accuracy of sensor.
Displacement transducer is during use, and extension and the aging sensitivity coefficient of electronic component over time can be sent out
Changing, if demarcation change not in time, it will cause the data deviation of measurement larger, influence measurement result.
Existing calibration device for displacement sensor, function is single, complex operation, it is impossible to meet the position of different type and range
The calibration request of displacement sensor.The scaling method of current displacement transducer carries out static demarcating using manual mode mostly, by position
Displacement sensor is fixed on caliberating device, sensor is moved along a straight line manually, and the letter exported with universal meter measurement sensor
Number value, while recording the shift value of axial movement, both correspond and obtain calibration curve, and this method demarcation measurement point is few, by mistake
Poor big, function is single.
Therefore, to overcome the shortcomings of that above-mentioned technology designs that cost is low, precision is relative and high polymorphic type displacement sensing
Device calibration system, exactly designs everybody problem to be solved.
Utility model content
The technical problem that the utility model first has to solve is to provide a kind of displacement biography suitable for polytype and range
The loading attachment of the simple and effective of sensor demarcation, can be according to the working environment need of different displacement transducers using the loading attachment
Will, displacement transducer is demarcated under specified environment, its sensitivity is verified, the linearity, the parameter such as hysteresis.
To solve above technical problem, the utility model discloses a kind of displacement transducer demarcation loading attachment, the dress
Carry and put including substrate, be substantially arranged with ball-screw, grating scale and line slideway in parallel successively, in line slideway, grating
Portable plate is provided with above chi and ball-screw, the portable plate is driven by ball-screw and moved along line slideway；
It is provided with substrate or on portable plate and is respectively used to fix stay wire sensor, angle displacement sensor and spring certainly
Dynamic telescopic displacement sensor simultaneously is allowed to follow portable plate movement to produce bracing wire displacement, angle displacement and spring automatic telescopic displacement
Fixed component.
Further,
The fixed component for being used to fix stay wire sensor includes being arranged on portable plate for fixing stay wire sensor
Stay wire displacement sensor fixed plate and be fixed on substrate be used for fix stay wire sensor bracing wire stay wire sensor consolidate
Determine block；
The fixed component for fixed angle displacement transducer, which includes being arranged on substrate, is used for fixed angle displacement
The angle displacement sensor retainer ring of sensor and the swing arm being arranged on portable plate with angle displacement sensor are in close contact
Angle displacement sensor fixed plate, be provided between angle displacement sensor retainer ring and angle displacement sensor fixed plate
Hub；
The fixed component for being used to fix spring automatic telescopic displacement transducer includes being arranged on portable plate for solid
Determine the spring automatic telescopic displacement transducer fixed block of spring automatic telescopic displacement transducer.
Further, the spring automatic telescopic displacement transducer fixed block has two, is fixed on the front and rear part of portable plate,
And positioned at along along the same straight line of portable plate moving direction.
Further, the stay wire sensor fixed block, angle displacement sensor retainer ring and stay wire displacement sensor are solid
Fixed board is sequentially located on the moving direction of portable plate,
The spring automatic telescopic displacement transducer fixed block is located at the side of stay wire displacement sensor fixed plate, angle position
Displacement sensor fixed plate is located at the opposite side of stay wire displacement sensor fixed plate.
Displacement transducer demarcation disclosed in the utility model can be used for the demarcation of three kinds of displacement transducers with loading attachment,
Servo-drive is controlled by the designated displacement value at PC ends, controlled motor driving ball-screw rotation drives the activity of rehandling facilities
One displacement determined occurs for plate, so that the spring automatic telescopic displacement transducer, the bracing wire displacement sensing that are fixed on portable plate
Device body and angle displacement sensor swing arm produce the displacement of the determination, measuring instrument receive each sensor voltage signal and
The displacement signal of grating scale, and it is delivered to PC ends；Repeating above procedure makes PC ends obtain one group of difference produced by different displacements
The demarcation report of the sensor is generated after voltage signal.
The beneficial effect of loading attachment disclosed in the utility model has：
1st, in each displacement transducer calibration process, it is fixed by screws on loading attachment, it is ensured that it is in actual mark
The displacement measured during fixed is identical with the displacement that portable plate is produced, and will not loosen and cause the deviation of calibration result.
2nd, loading attachment of the present utility model and the calibration system set using the loading attachment are applied to polytype
And the demarcation of multiple range displacement transducer, automatic Calibration and generation report, it can specifically support stay wire displacement sensor, angle position
Demarcated while 3 kinds of different displacement transducers of displacement sensor and spring automatic telescopic displacement transducer, man-machine interface, high precision position
Move demarcation.
3rd, with high-precision grating scale on loading attachment, the displacement of portable plate movement can be directly displayed out, and by the position
Shifting value is transferred to measuring appliance, can also be according to the requirement of sensor rezero operation at an arbitrary position.
The position of three kinds of displacement transducer fixed components sets compact and reasonable in loading attachment of the present utility model, and jointly
Fix on one substrate, prevent because other reasonses produce displacement, influence demarcation.Utilize loading attachment of the present utility model, energy
The demarcation of the displacement transducer of enough completion plurality of specifications and range rapidly and efficiently, the convenient disassembly of sensor is simple to operate, number
It is rapid directly perceived according to processing.Be particularly suitable for use in the demarcation of vehicle impact testing displacement transducer.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of the utility model displacement transducer demarcation loading attachment；
Fig. 2 is the overlooking the structure diagram of the utility model displacement transducer demarcation loading attachment；
Fig. 3 is angle displacement sensor fixed plate structure schematic diagram；
Fig. 4 is the structural representation of stay wire displacement sensor fixed block；
Fig. 5 is the structural representation of hub；
Fig. 6 is the position relationship structural representation between 3 kinds of displacement transducer fixed components；
Fig. 7 is the position relationship structural representation between 3 kinds of displacement transducer fixed components that another angle is seen；
Fig. 8 is schematic flow sheet when being demarcated using the utility model loading attachment.
Reference in figure, 1- stay wire sensor fixed blocks, 1.1- fixed block installing plates, 1.2- bracing wire fixed stations,
1.2.1- bracing wire groove, 2- angle displacement sensor retainer rings, 3- angle displacement sensor fixed plates, 3.1- baffle plates, 3.2- is fixed
Installing plate, 4- stay wire sensor fixed plates, 5- spring automatic telescopic displacement transducer fixed blocks, 6- hubs, 6.1- hubs
Gland, 6.2- lines, 7- portable plates, 8- spring automatic telescopic displacement transducers, 9- line slideways, 10- grating scales, 11- balls
Leading screw, 12- substrates, 12.1- mounting seats, 12.2- erecting beds.
Embodiment
With reference to embodiment, content of the present utility model is more specifically illustrated.Implementation of the present utility model is not limited to
The following examples, any formal accommodation or change made to the utility model all should be in protection models of the present utility model
In enclosing.
Embodiment 1：
Displacement transducer demarcation of the present utility model with loading attachment such as Fig. 1 (which part details do not show in Fig. 1,
Mounting hole on such as portable plate 7 etc., non-display portion detailed structure refer to Fig. 2) and shown in 2, including one piece of substrate 12, lead to
Cross substrate 12 loading attachment is fixed on working top, reduce the accidental error for offseting generation in calibration process by position.For
Convenient description, the left direction that the utility model is shown using Fig. 2 is rear, and right direction is that (fore-and-aft direction is portable plate 7 in front
Moving direction)；Other both sides are left and right, and are to be right above a left side, paper with the paper lower section shown in Fig. 3.
Ball-screw 11, grating scale 10 and line slideway are from left to right arranged with parallel successively in basic 12 upper surface
9, three should be highly parallel, it is ensured that the precision of demarcation.The loading attachment also includes under one piece of portable plate 7, the left side of the portable plate 7
Side is fixed on ball-screw 11, and lower right-hand side is fixed on line slideway 9, i.e., can band when ball-screw 11 is subjected to displacement
Dynamic portable plate 7 is moved along line slideway 9, and mobile distance can be then shown on grating scale 10.
A spring automatic telescopic displacement transducer fixed block is respectively installed before and after the upper surface in left side in portable plate 7
5, spring automatic telescopic displacement transducer 8 is fixed on portable plate 7 through spring automatic telescopic displacement transducer fixed block 5.
Two spring automatic telescopic displacement transducer fixed blocks 5 point-blank, and the straight line and ball-screw 11, grating scale 10 and
Line slideway 9 is parallel, that is, the rectilinear direction is the moving direction of portable plate 7, that is, the displacement of spring automatic telescopic is passed
The direction of displacement of sensor 8.
One bracing wire is installed on the right side of the spring automatic telescopic displacement transducer fixed block 5 at the rear positioned at portable plate 7
Displacement transducer fixed plate 4, is provided with for fixing at the rear of the stay wire displacement sensor fixed plate 4 and on substrate 12
The stay wire sensor fixed block 1 of the bracing wire of stay wire sensor；And stay wire displacement sensor fixed plate 4 is fixed with stay wire sensor
Block 1 is separately mounted in mounting seat 12.1 and erecting bed 12.2, and mounting seat 12.1 is set on the substrate 12, and erecting bed 12.2 is set
On portable plate 7.
An angle displacement sensor is fixed with portable plate 7 positioned at the right side of stay wire displacement sensor fixed plate 4 to consolidate
Fixed board 3, is provided with angle on the substrate 12 and positioned at place between stay wire sensor fixed block 1 and stay wire displacement sensor fixed plate 4
Displacement transducer retainer ring 2 is spent, because stay wire displacement sensor fixed plate 4 and stay wire sensor fixed block 1 are separately mounted to peace
Fill on seat 12.1 and erecting bed 12.2, therefore stay wire displacement sensor fixed plate 4 and the position of stay wire sensor fixed block 1 are drawn
Height, so the bracing wire of stay wire displacement sensor may extend across angle displacement sensor retainer ring 2 and angle displacement sensor thereon,
Both demarcation are made to be independent of each other.It is provided between angle displacement sensor retainer ring 2 and angle displacement sensor fixed plate 3
Hub 6.
Wherein, stay wire sensor fixed block 1 with the fixed block that mounting seat 12.1 is fixed as shown in figure 4, including for installing
Plate 1.1, the bracing wire fixed station 1.2 set with fixed block installing plate 1.1 in an angle of 90 degrees, use is offered on bracing wire fixed station 1.2
In the bracing wire groove 1.2.1 of fixed stay wire displacement sensor bracing wire.Angle displacement sensor fixed plate 3 is as shown in figure 3, including being used for
The fixed installation plate 3.2 being fixedly mounted with portable plate 7 and the baffle plate 3.1 set with fixed installation plate 3.2 into an angle of 90 degrees.Line concentration
Device 6 in hub gland 6.1 as shown in figure 5, including the hub gland 6.1 for being fixed on portable plate 7, be extended with
Line 6.2.
Using foregoing disclosed displacement transducer demarcation loading attachment of the present utility model, the loading attachment can be used for angle
The demarcation of displacement transducer, stay wire displacement sensor and spring automatic telescopic displacement transducer is spent, demarcation part can include PC
End, servo-drive, motor, loading attachment, displacement transducer, measuring instrument.
Experimental implementation temperature, humidity are first determined according to different conditions of work for thermometer and hygrometer before demarcation.Because
Different test temperatures and the service behaviour of humidity on sensor can cause very big influence, thus sensor demarcation need with
Practical work environment is corresponding.
Specific demarcating steps are as follows：
(1) power supply of each instrument, is opened, servo-drive is rectified with PC and is really connected, to ensure that it provides each determination value
Displacement, the pin-point reading of displacement can be read from high-precision grating scale.
(2), loading attachment is fixed on working top, prevents it from producing vibration skew in demarcation and bringing error.
(3) different fixed positions, are selected according to different types of displacement transducer,
When demarcating stay wire displacement sensor, stay wire displacement sensor is screwed and fixed in stay wire displacement sensor
On plate 4, and bracing wire is stuck in the bracing wire groove 1.2.1 of stay wire displacement sensor fixed block 1 and demarcated after fixing；
Demarcate spring automatic telescopic displacement transducer 8 when, by spring automatic telescopic displacement transducer with two springs oneself
The parallel fixation of dynamic telescopic displacement sensor fixed block 5, internal telescopic spring mechanism is automatic by telescopic head and bracing wire displacement sensing
Device fixed block 1 or mounting seat 12.1 are touched, and then carry out zero demarcation；
When demarcating angle displacement sensor, angle displacement sensor is fixed in angle displacement sensor retainer ring 2,
The swing arm of angle displacement sensor is tight contacted between into angle displacement sensor fixed plate 3 (stopped and be subjected to displacement by baffle plate 3.1),
And be placed on the line 6.2 on hub 6 in swing arm, make swing arm by pulling force so as to tight with angle displacement sensor fixed plate 3 all the time
Close contact, then carries out the demarcation of angle displacement sensor.
(4), according to the measurement range of different displacement transducers, several equidistant points are divided into, according to measurement range
Branch situation, sets the shift value of minimum, system controls high-precision servo to drive by PC ends related software, by electricity on PC ends
Machine drives the rotation of ball-screw 11 to be subjected to displacement, and realizes portable plate 7 and shifts automatically at least displacement, uses high-precision grating
Chi records and shows displacement.While portable plate 7 is subjected to displacement, the spring automatic telescopic displacement sensing on portable plate 7 is arranged on
Identical movement occurs therewith for device fixed block 5, stay wire displacement sensor fixed plate 4 and angle displacement sensor fixed plate 3, so that
The three kinds of sensors being fixed thereon is driven to occur identical displacement.The displacement that portable plate 7 is produced is measured by sensor
Displacement.
(5) output voltage values of displacement transducer, are observed, are waited after the output voltage value stabilization shown in measuring instrument,
The output quantity (analog signal) is recorded, measuring instrument passes the displacement data of the voltage signal and the high-precision grating scale of reception
It is defeated by PC ends.
(6), the shift value of computer settings is lifted successively from small to large, step 5 is repeated, the original of each point is obtained
Beginning nominal data.
(7) nominal data, is handled, the corresponding relation curve map between input quantity and output quantity is drawn and determines sensor
Property indices.
Three of the above displacement transducer, which can be also secured on corresponding component, carries out proving operation simultaneously.
In addition, the demarcation of displacement transducer needs high-performance power supply to power offer driving voltage, the utility model can be by surveying
Measuring appratus is provided.
Claims (4)
1. a kind of displacement transducer demarcation loading attachment, it is characterised in that：The loading attachment includes substrate (12), substrate (12)
On be arranged with ball-screw (11), grating scale (10) and line slideway (9) in parallel successively, in line slideway (9), grating scale (10)
Be provided with portable plate (7) above ball-screw (11), the portable plate (7) is driven by ball-screw (11) and along line slideway
(9) it is mobile；
It is provided with substrate (12) or on portable plate (7) and is respectively used to fix stay wire sensor, angle displacement sensor and bullet
Spring automatic telescopic displacement transducer simultaneously is allowed to follow mobile bracing wire displacement, angle displacement and the spring of producing of portable plate (7) to stretch automatically
Condense the fixed component of shifting.
2. displacement transducer demarcation loading attachment according to claim 1, it is characterised in that：
The fixed component for being used to fix stay wire sensor includes being arranged on portable plate (7) for fixing stay wire sensor
Stay wire displacement sensor fixed plate (4) and be fixed on substrate (12) be used for fix stay wire sensor bracing wire bracing wire sensing
Device fixed block (1)；
The fixed component for fixed angle displacement transducer, which includes being arranged on substrate (12), is used for fixed angle displacement
The angle displacement sensor retainer ring (2) of sensor and the swing arm being arranged on portable plate (7) with angle displacement sensor are tight
The tactile angle displacement sensor fixed plate (3) of contiguity, is fixed in angle displacement sensor retainer ring (2) and angle displacement sensor
Hub (6) is provided between plate (3)；
The fixed component for being used to fix spring automatic telescopic displacement transducer includes being arranged on portable plate (7) for fixing
The spring automatic telescopic displacement transducer fixed block (5) of spring automatic telescopic displacement transducer.
3. displacement transducer demarcation loading attachment according to claim 2, it is characterised in that：The spring automatic telescopic position
Displacement sensor fixed block (5) has two, is fixed on the front and rear part of portable plate (7), and be located at along the same of portable plate (7) moving direction
On one straight line.
4. displacement transducer demarcation loading attachment according to claim 2, it is characterised in that：The stay wire sensor is fixed
Block (1), angle displacement sensor retainer ring (2) and stay wire displacement sensor fixed plate (4) are sequentially located at the movement of portable plate (7)
On direction,
The spring automatic telescopic displacement transducer fixed block (5) is located at the side of stay wire displacement sensor fixed plate (4), angle
Displacement transducer fixed plate (3) is located at the opposite side of stay wire displacement sensor fixed plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621430622.9U CN206362297U (en) | 2016-12-25 | 2016-12-25 | A kind of displacement transducer demarcation loading attachment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621430622.9U CN206362297U (en) | 2016-12-25 | 2016-12-25 | A kind of displacement transducer demarcation loading attachment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206362297U true CN206362297U (en) | 2017-07-28 |
Family
ID=59376656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621430622.9U Withdrawn - After Issue CN206362297U (en) | 2016-12-25 | 2016-12-25 | A kind of displacement transducer demarcation loading attachment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206362297U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036517A (en) * | 2016-12-25 | 2017-08-11 | 杭州集普科技有限公司 | A kind of displacement transducer demarcation loading attachment and scaling method |
| CN107883910A (en) * | 2017-11-09 | 2018-04-06 | 中国航发湖南动力机械研究所 | Portable gap sensor checkout and diagnosis instrument |
| CN108872952A (en) * | 2018-04-27 | 2018-11-23 | 中国地震局地质研究所 | A kind of reflective optical fiber displacement sensor situ calibration system and method |
| CN109813207A (en) * | 2019-03-18 | 2019-05-28 | 中国重汽集团大同齿轮有限公司 | A kind of AMT position sensor temperature drift test platform and its correction of temperature drift method |
| CN110823151A (en) * | 2019-10-15 | 2020-02-21 | 武汉船用机械有限责任公司 | Test tool for underwater pull rope sensor |
| CN112611346A (en) * | 2020-12-11 | 2021-04-06 | 广西电网有限责任公司桂林供电局 | Positioning special tool for energy storage shaft of Siemens mechanism |
| CN112815879A (en) * | 2021-01-06 | 2021-05-18 | 长春市春求科技开发有限公司 | Five-axis equipment C-axis angular displacement measuring device and measuring calibration method |
-
2016
- 2016-12-25 CN CN201621430622.9U patent/CN206362297U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036517A (en) * | 2016-12-25 | 2017-08-11 | 杭州集普科技有限公司 | A kind of displacement transducer demarcation loading attachment and scaling method |
| CN107036517B (en) * | 2016-12-25 | 2023-03-14 | 杭州集普科技有限公司 | Loading device for calibrating displacement sensor and calibration method |
| CN107883910A (en) * | 2017-11-09 | 2018-04-06 | 中国航发湖南动力机械研究所 | Portable gap sensor checkout and diagnosis instrument |
| CN108872952A (en) * | 2018-04-27 | 2018-11-23 | 中国地震局地质研究所 | A kind of reflective optical fiber displacement sensor situ calibration system and method |
| CN109813207A (en) * | 2019-03-18 | 2019-05-28 | 中国重汽集团大同齿轮有限公司 | A kind of AMT position sensor temperature drift test platform and its correction of temperature drift method |
| CN109813207B (en) * | 2019-03-18 | 2021-05-14 | 中国重汽集团大同齿轮有限公司 | AMT position sensor temperature drift test platform and temperature drift correction method thereof |
| CN110823151A (en) * | 2019-10-15 | 2020-02-21 | 武汉船用机械有限责任公司 | Test tool for underwater pull rope sensor |
| CN110823151B (en) * | 2019-10-15 | 2021-05-28 | 武汉船用机械有限责任公司 | Test tool for underwater pull rope sensor |
| CN112611346A (en) * | 2020-12-11 | 2021-04-06 | 广西电网有限责任公司桂林供电局 | Positioning special tool for energy storage shaft of Siemens mechanism |
| CN112815879A (en) * | 2021-01-06 | 2021-05-18 | 长春市春求科技开发有限公司 | Five-axis equipment C-axis angular displacement measuring device and measuring calibration method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206362297U (en) | A kind of displacement transducer demarcation loading attachment | |
| CN107036517A (en) | A kind of displacement transducer demarcation loading attachment and scaling method | |
| CN101571442B (en) | Calibration method for six-dimension force sensor calibration device with medium measurement range | |
| CN103257050B (en) | Three-directional static rigidity synchronous testing system for machine tool | |
| CN102176135A (en) | Thermal error measuring and integrating system for numerical control machine tool | |
| CN202735085U (en) | Main shaft performance testing platform | |
| CN206330758U (en) | A kind of test-bed for being used to test driving motor for electric automobile system reliability | |
| CN102519511B (en) | Indication verification apparatus of automobile instrument and verification method thereof | |
| CN101813499B (en) | Method and device for calibrating three-dimensional micro tactile sensor | |
| CN101881626A (en) | Self-correcting horizontal loading device | |
| CN202676254U (en) | Quality test device of LABVIEW-based electric resistance type oil level sensor | |
| CN103674504B (en) | Main shaft performance testing platform | |
| CN203811126U (en) | Stress ring deformation detection device | |
| CN203502148U (en) | Data acquisition device of ceramic pressure sensor chips | |
| CN103104573A (en) | Device and method for testing high-frequency on-load frequency catachrestic of large-size hydraulic cylinder | |
| CN202033073U (en) | Semi-physical simulation platform for digital fuel oil measuring system | |
| CN201081757Y (en) | Integrated tester for power assembly parameters | |
| CN203731987U (en) | Steam turbine differential expansion and valve location instrument calibration device | |
| CN105180887A (en) | Wide span beam deflection deformation measuring method | |
| CN201993620U (en) | Thermal-error measurement integrating system for numerically-controlled machine tool | |
| CN201037789Y (en) | Weighing sensor fault on-site diagnostic device | |
| CN202066641U (en) | Off-line verification apparatus for metering standard apparatus | |
| CN202885809U (en) | Full-temperature compensated precise tilt angle sensor | |
| CN204988621U (en) | Horizontal reed dynamometer calibrating device | |
| CN203551171U (en) | Metal rod torque measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170728 Effective date of abandoning: 20230314 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20170728 Effective date of abandoning: 20230314 |