CN110068706A - Examine and determine vehicle instrument mounting platform horizontal zero calibration method - Google Patents
Examine and determine vehicle instrument mounting platform horizontal zero calibration method Download PDFInfo
- Publication number
- CN110068706A CN110068706A CN201910218898.2A CN201910218898A CN110068706A CN 110068706 A CN110068706 A CN 110068706A CN 201910218898 A CN201910218898 A CN 201910218898A CN 110068706 A CN110068706 A CN 110068706A
- Authority
- CN
- China
- Prior art keywords
- mounting platform
- track
- distance
- instrument mounting
- calibrating
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
- G01P21/025—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers for measuring speed of fluids; for measuring speed of bodies relative to fluids
Abstract
The present invention provides a kind of calibrating vehicle instrument mounting platform horizontal zero calibration methods, comprising: instrument mounting platform is mounted on detection vehicle and is surveyed on frame, detection vehicle is moved by directive wheel along track, and platform can rotate left and right in the horizontal direction；Rangefinder is installed at instrument mounting platform center；Mounting platform is rotated by 90 °, makes the front of mounting platform perpendicular to track；Distance along one group of mounting platform center of orbit measurement to track；Calculate the distance average measured and mean square deviation；Mounting platform is rotated into 90+ Δ α j degree, rotating platform is repeated and measures the distance at multiple groups mounting platform center to track, calculate the distance average measured and mean square deviation；The smallest distance average is selected, Δ α j corresponding with minimum value is found, is then rotated to Δ α j angle zero setting, to complete the horizontal zero calibration of calibrating vehicle instrument mounting platform.Method provided by the invention can accurate school zero, make instrument axis center with detection vehicle motion profile and parallel track.
Description
Technical field
The invention belongs to instrument mounting technique fields, are related to a kind of calibrating vehicle instrument mounting platform horizontal zero calibration side
Method.
Background technique
The hydrology refers to the subject of the spatial and temporal distributions of research nature water, changing rule, professional very strong.The country is from 50
The research work of hydrology metering aspect is just carried out from age, the seventies rise, and nationwide inland, which is continued, has set a collection of flow velocity
Instrument calibrating installation.National Hydrological industry has ten current meter calibration tanks, and width is from 2m-5m etc., length 80m-
Between 130m, the depth of water is generally 1m-3m or so.Part calibrating unit has obtained metering authorization, has passed through national metering and has recognized
Card.Mainly there are two aspects to determine for the accuracy of the detecting instrument metering of current meter calibration tank, is on the one hand calibrating vehicle speed
Stability；It on the other hand is the accuracy of instrument installation site.Only installation is accurate, can guarantee detecting instrument meter thereafter
The accuracy of amount.Instrument installation site is determined by two factors, and one is perpendicular to the distance of the water surface, this is by calibrating vehicle
What measuring staff elevating mechanism determined；The other is horizontal zero.Presently mainly horizontal zero is determined by the range estimation of detection workman
Position.But as the precision of current meter is higher and higher, only it much can not meet actual needs by range estimation.
Summary of the invention
To solve the above problems, the invention discloses a kind of calibrating vehicle instrument mounting platform horizontal zero calibration methods.
In order to achieve the above object, the invention provides the following technical scheme:
A kind of calibrating vehicle instrument mounting platform horizontal zero calibration method, includes the following steps:
Step 1, instrument mounting platform is mounted on detection vehicle to survey on frame, detection vehicle is transported by directive wheel along straight rail
Dynamic, platform can rotate left and right in the horizontal direction；
Step 2, rangefinder is installed in instrument mounting platform central axes；
Step 3, mounting platform is rotated by 90 °, makes the front of mounting platform perpendicular to track；
Step 4, along the distance of one group of mounting platform central axes of orbit measurement to track
Measurement detects the distance d of g. slice header mounting platform central axes to track1；It examines and determine Chinese herbaceous peony and measures installation into a distance
Platform central axes to track distance d2；Calibrating vehicle readvance a distance measure mounting platform central axes to track distance
d3... so measurement is gone down until the tail portion that calibrating reaches detection section measures dn；
Step 5, the distance average and mean square deviation that step 4 measures is calculated as follows:
Step 6, mounting platform is rotated into 90+ Δ α j degree, repeats step 3,4, survey calculation obtainsSj, wherein j=
1,2,3,...,m。
Step 7, the smallest distance average is selected, Δ α j corresponding with minimum value is found, is then rotated to Δ α j angle
Zero setting.So far the calibration of calibrating vehicle instrument mounting platform horizontal zero finishes.
Further, instrument mounting platform is connected to detection vehicle by shaft and surveys on frame.
Further, when occurring two equal minimum values in step 7, that the smallest range averaging of selection criteria difference
Value.
Compared with prior art, the invention has the advantages that and the utility model has the advantages that
Method provided by the invention can accurate calibration examine and determine vehicle instrument mounting platform horizontal zero, make instrument axis center
With detection vehicle motion profile and parallel track.The method of the present invention is simple and easy, application easy to spread.
Detailed description of the invention
Fig. 1 is that calibrating vehicle instrument mounting platform horizontal zero calibration method provided by the invention realizes state diagram.
Specific embodiment
Technical solution provided by the invention is described in detail below with reference to specific embodiment, it should be understood that following specific
Embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.
Calibrating vehicle instrument mounting platform horizontal zero calibration method provided by the invention, includes the following steps:
Step 1, instrument mounting platform 1 is mounted on detection vehicle to survey on frame, detection vehicle is to transport by directive wheel along track
It is dynamic, track be it is straight, the track horizontal error of track is not more than 0.3mm (height tolerance of each measurement point to horizontal plane)；Track
Straight line error is not more than 0.5mm.The mounting platform of instrument is connected to detection vehicle by shaft and surveys on frame, and platform is in the horizontal direction
It can rotate left and right.
Step 2, rangefinder, instrument and mounting platform Hard link, rangefinder direction are installed in instrument mounting platform central axes
The front that track is advanced.
Step 3, mounting platform is rotated by 90 °, makes the front (top in Fig. 1) of mounting platform perpendicular to backbone 2, surveys
Distance meter is towards backbone.
Step 4, along the distance at one group of mounting platform center of orbit measurement to track
Measure the distance d of mounting platform central axes to track1；It examines and determine Chinese herbaceous peony and measures mounting platform center extremely into a distance
The distance d of track2；Calibrating vehicle readvance a distance measure mounting platform center to track distance d3... so such one
Straight measurement is gone down until the tail portion that calibrating reaches detection section measures dn, as shown in Figure 1.
Step 5, the distance average and mean square deviation that step 4 measures is calculated as follows.
Step 6, by mounting platform rotation 90+ Δ α j degree, (Δ α j is set as needed, generally according to previous testing result
Carry out the adjustment of adaptability), step 3,4 are repeated, survey calculation obtainsSj, wherein j=1,2,3 ..., m, m value is according to need
It sets, m is 15 in this example.
Step 7, the smallest distance average is selected, if there are two equal minimum values, with regard to selection criteria difference SjIt is minimum
That.Δ α j corresponding with minimum value is found, is then rotated to Δ α j angle zero setting.So far vehicle instrument mounting platform water is examined and determine
Flat zero adjustment finishes.
In the above manner, can enable the instrument axis center installed on the platform behind school zero with detection vehicle motion profile with
Parallel track.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.It should be pointed out 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 (3)
1. a kind of calibrating vehicle instrument mounting platform horizontal zero calibration method, which comprises the steps of:
Step 1, instrument mounting platform is mounted on detection vehicle to survey on frame, detection vehicle is moved by directive wheel along straight rail, platform
It can rotate left and right in the horizontal direction；
Step 2, rangefinder is installed in instrument mounting platform central axes；
Step 3, mounting platform is rotated by 90 °, makes the front of mounting platform perpendicular to track；
Step 4, along the distance of one group of mounting platform central axes of orbit measurement to track
Measurement detects the distance d of g. slice header mounting platform central axes to track1；It examines and determine Chinese herbaceous peony and measures mounting platform into a distance
Central axes to track distance d2；Calibrating vehicle readvance a distance measure mounting platform central axes to track distance d3……
So measurement is gone down until the tail portion that calibrating reaches detection section measures dn；
Step 5, the distance average and mean square deviation that step 4 measures is calculated as follows:
Step 6, mounting platform is rotated into 90+ Δ α j degree, repeats step 3,4, survey calculation obtainssj, wherein j=1,2,
3,...,m。
Step 7, the smallest distance average is selected, Δ α j corresponding with minimum value is found, is then rotated to Δ α j angle zero setting.
So far the calibration of calibrating vehicle instrument mounting platform horizontal zero finishes.
2. calibrating vehicle instrument mounting platform horizontal zero calibration method according to claim 1, which is characterized in that instrument peace
Assembling platform is connected to detection vehicle by shaft and surveys on frame.
3. calibrating vehicle instrument mounting platform horizontal zero calibration method according to claim 1, which is characterized in that work as step
When occurring two equal minimum values in 7, that the smallest distance average of selection criteria difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218898.2A CN110068706B (en) | 2019-03-21 | 2019-03-21 | Horizontal zero calibration method for instrument mounting platform of verification vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218898.2A CN110068706B (en) | 2019-03-21 | 2019-03-21 | Horizontal zero calibration method for instrument mounting platform of verification vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110068706A true CN110068706A (en) | 2019-07-30 |
| CN110068706B CN110068706B (en) | 2021-09-21 |
Family
ID=67366485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910218898.2A Active CN110068706B (en) | 2019-03-21 | 2019-03-21 | Horizontal zero calibration method for instrument mounting platform of verification vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110068706B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834785A (en) * | 2021-02-01 | 2021-05-25 | 山东省水文局 | Horizontal zero calibration method for instrument mounting platform of flow velocity detection vehicle |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56666A (en) * | 1979-06-13 | 1981-01-07 | Tokyo Keiki Co Ltd | Angle correcting system of radio wave flow speed meter |
| CN1474187A (en) * | 2003-04-01 | 2004-02-11 | 水利部南京水利水文自动化研究所 | Detecting method of current meter and its detection mounting equipment |
| CN102207513A (en) * | 2011-03-15 | 2011-10-05 | 水利部南京水利水文自动化研究所 | Method for calibrating rotor current meter |
| CN205066606U (en) * | 2015-09-21 | 2016-03-02 | 中国科学院西安光学精密机械研究所 | Rotation type gage block fixed bolster |
| CN105954543A (en) * | 2016-06-23 | 2016-09-21 | 江苏南水水务科技有限公司 | Current meter high-speed linear formula integration detection method and detection device |
| CN206161676U (en) * | 2016-10-14 | 2017-05-10 | 中国人民解放军理工大学 | Calibrating installation of FP series current meter |
| CN206696306U (en) * | 2017-03-28 | 2017-12-01 | 重庆华正水文仪器有限公司 | A kind of current meter calibration equipment |
| CN108562881A (en) * | 2018-05-31 | 2018-09-21 | 安徽江淮汽车集团股份有限公司 | A kind of Radar Calibration system and method |
| CN109085377A (en) * | 2018-08-02 | 2018-12-25 | 北京世纪东方通讯设备有限公司 | A kind of method for detecting vehicle speed and device of track checking car |
| CN109211298A (en) * | 2017-07-04 | 2019-01-15 | 百度在线网络技术（北京）有限公司 | A kind of transducer calibration method and device |
-
2019
- 2019-03-21 CN CN201910218898.2A patent/CN110068706B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56666A (en) * | 1979-06-13 | 1981-01-07 | Tokyo Keiki Co Ltd | Angle correcting system of radio wave flow speed meter |
| CN1474187A (en) * | 2003-04-01 | 2004-02-11 | 水利部南京水利水文自动化研究所 | Detecting method of current meter and its detection mounting equipment |
| CN102207513A (en) * | 2011-03-15 | 2011-10-05 | 水利部南京水利水文自动化研究所 | Method for calibrating rotor current meter |
| CN205066606U (en) * | 2015-09-21 | 2016-03-02 | 中国科学院西安光学精密机械研究所 | Rotation type gage block fixed bolster |
| CN105954543A (en) * | 2016-06-23 | 2016-09-21 | 江苏南水水务科技有限公司 | Current meter high-speed linear formula integration detection method and detection device |
| CN206161676U (en) * | 2016-10-14 | 2017-05-10 | 中国人民解放军理工大学 | Calibrating installation of FP series current meter |
| CN206696306U (en) * | 2017-03-28 | 2017-12-01 | 重庆华正水文仪器有限公司 | A kind of current meter calibration equipment |
| CN109211298A (en) * | 2017-07-04 | 2019-01-15 | 百度在线网络技术（北京）有限公司 | A kind of transducer calibration method and device |
| CN108562881A (en) * | 2018-05-31 | 2018-09-21 | 安徽江淮汽车集团股份有限公司 | A kind of Radar Calibration system and method |
| CN109085377A (en) * | 2018-08-02 | 2018-12-25 | 北京世纪东方通讯设备有限公司 | A kind of method for detecting vehicle speed and device of track checking car |
Non-Patent Citations (3)
| Title |
|---|
| 李志飞等: "《流速仪计量检定装置研制及应用》", 《仪表与自动化装置》 * |
| 赵思: "《基于无线网络的流速仪转向定位系统的研究与设计》", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 郭夕: "《流速仪检定系统的精度分析与研究》", 《万方学术期刊数据库》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112834785A (en) * | 2021-02-01 | 2021-05-25 | 山东省水文局 | Horizontal zero calibration method for instrument mounting platform of flow velocity detection vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110068706B (en) | 2021-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Kaimal et al. | Some errors in the measurement of Reynolds stress | |
| Irwin | A simple omnidirectional sensor for wind-tunnel studies of pedestrian-level winds | |
| CN104132699B (en) | A kind of laser scan type bulk material flow detection and distribution error removing method | |
| CN108254032A (en) | River ultrasonic wave time difference method method of calculating flux | |
| CN206670571U (en) | A kind of device that deflection of bridge span is measured using laser range finder | |
| CN105954543B (en) | A kind of current meter high-speed straight-line formula integral checking method and its calibration equipment | |
| CN106093892A (en) | Carry out Radar RCS based on calibration satellite to demarcate and outer survey calibration system simultaneously | |
| CN107479078A (en) | Geodetic coordinates is converted to the method and system of separate planes coordinate in railroad survey | |
| CN106705894A (en) | Error calibration and compensation method for double-circular grating angle displacement detection system | |
| CN103643620B (en) | A kind of laser beam depth of parallelism regulation system and method measured for pavement deflection | |
| CN103235883A (en) | Non-contact river surface velocity measurement based regression calculation method for instantaneous flow rate | |
| CN102901537A (en) | Method and device for measuring flow of gate | |
| CN110068706A (en) | Examine and determine vehicle instrument mounting platform horizontal zero calibration method | |
| Wang et al. | Relations between morphology, air flow, sand flux and particle size on transverse dunes, Taklimakan Sand Sea, China | |
| CN105021663A (en) | Salinity measurement method | |
| CN208350013U (en) | A kind of equipment that road is calibrated with laser ranging formula section tester high-precision calibrating | |
| Zheng et al. | Study on the calibration method of USBL system based on ray tracing | |
| CN106771682B (en) | A kind of space charge concentration acquisition methods and device | |
| CN105648862B (en) | Track centre coordinate dynamic continuous detecting method | |
| CN104101322A (en) | Surface roughness measuring system and method based on successive two-angle method | |
| CN209215573U (en) | A kind of car radar test device | |
| CN104330078B (en) | Combined measuring method based on three-point resection model | |
| CN110850382A (en) | Method and system for evaluating measurement accuracy of interferometric radar altimeter | |
| Castro et al. | Pulsed-wire anemometry on rough surfaces, with application to desert sand dunes | |
| CN109141554A (en) | A kind of area velocity flowmeter for surveying partly-filled pipe-flow using supersonic Doppler method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |