CN201289390Y - Detection device for performance index of six freedom degree movement platform - Google Patents
Detection device for performance index of six freedom degree movement platform Download PDFInfo
- Publication number
- CN201289390Y CN201289390Y CNU2009200929845U CN200920092984U CN201289390Y CN 201289390 Y CN201289390 Y CN 201289390Y CN U2009200929845 U CNU2009200929845 U CN U2009200929845U CN 200920092984 U CN200920092984 U CN 200920092984U CN 201289390 Y CN201289390 Y CN 201289390Y
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- China
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- displacement sensor
- piston rod
- modulus
- digital
- interface card
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Abstract
The utility model provides a device for detecting the performance index of a six-freedom motion platform. A data processing computer is used for receiving a magnetostriction displacement sensor and sending out a movement instruction of a piston rod; a modulus and digital-analog conversion interface card is mounted in the data processing computer, connected with the magnetostriction displacement sensor through a feedback signal line, and connected with a servo amplifier through a control signal line; the servo amplifier is used for receiving the analog voltage signals of the modulus and digital-analog conversion interface card and controlling an electro-hydraulic servo valve through a signal lead-wire; the electronic compartment of the magnetostriction displacement sensor is mounted on the outer cylinders of actuating cylinders; the movable magnetic ring of the magnetostriction displacement sensor is mounted on the piston rod; the inverse transformation software process is carried out to the six actuating cylinders by the data processing computer along the motion of the piston rod, so as to measure various performance indexes in the mobile covered wires of the six-freedom motion platform. The utility model has the advantages of simple structure, less detection device, short detection time and complete detection performance.
Description
Technical field
The utility model is a kind of pick-up unit of 6-dof motion platform performance index, belongs to mechanical part pick-up unit technical field.
Background technology
The 6-dof motion platform performance index detect for using and develop the motion platform function significance.Existing 6-dof motion platform performance index detect and are realized by multiple pick-up unit, usually adopt level meter and the displacement of ruler measuring table, adopt outer corner measurement instrument measuring table corner, adopt knotmeter, accelerometer measures platform motion speed and acceleration.The shortcoming of using these pick-up units to exist is: platform pick-up unit kind is many, installation portion is convenient, use complicated operating process, sense cycle is long, the measuring accuracy disunity, and 6-dof motion platform motion envelope curve is irregular curved surface space, all can't reflect the platform property index no matter a pick-up unit is installed on the platform stage body Anywhere comprehensively.
Summary of the invention
The utility model proposes a kind of pick-up unit that is specifically designed to the 6-dof motion platform performance index, this device be adopt the high precision magnetostrictive displacement sensor measure 6-dof motion platform six pressurized strut elongations, the high-speed computation by computing machine adds up to the calculation ability to realize complete detection to the 6-dof motion platform performance index.
Pick-up unit of the present utility model is made up of following several parts: comprise data handling machine, modulus and digital-to-analog conversion interface card, servoamplifier, electrohydraulic servo valve, the pressurized strut urceolus, piston rod, magnetostrictive displacement sensor, data handling machine is in order to receive magnetostrictive displacement sensor and to send the piston rod movement instruction; Modulus and digital-to-analog conversion interface card are installed on the data handling machine isa bus, are connected with magnetostrictive displacement sensor by feedback signal line, are connected with servoamplifier by control signal wire; Servoamplifier receives the analog voltage signal of modulus and digital-to-analog conversion interface card and controls electrohydraulic servo valve by signal conductor, the electronic compartment of magnetostrictive displacement sensor is installed on the pressurized strut urceolus, the movable magnet ring of magnetostrictive displacement sensor is installed on the piston rod, with piston rod movement.Pressurized strut is made of pressurized strut urceolus and piston rod.
Good effect of the present utility model is: magnetostrictive displacement sensor produces six proportional feedback signals of pressurized strut displacement with 6-dof motion platform, gather the magnetostrictive displacement sensor feedback signal by data handling machine, through data handling machine the inverse transformation software processes is carried out in six pressurized struts again, just can obtain the every performance index in the 6-dof motion platform motion envelope curve.The utility model is simple in structure, and pick-up unit is few, and detection time is short, and it is comprehensive to detect performance.
Description of drawings
Fig. 1 is the single pressurized strut structure principle chart of the utility model;
1, computing machine; 2, modulus and digital-to-analog conversion interface card; 3, servoamplifier; 4, electrohydraulic servo valve; 5, pressurized strut urceolus; 6, control piston bar; 7, magnetostrictive displacement sensor.
Embodiment
According to shown in Figure 1, data handling machine 1 sends piston rod 6 movement instructions, be transformed to the control signal of analog voltage signal through modulus and digital-to-analog conversion interface card 2 as servoamplifier 3, servoamplifier 3 amplifies back control electrohydraulic servo valve 4 with control signal, electrohydraulic servo valve 4 control piston bars 6 rectilinear motions, the magnet ring that drives magnetostrictive displacement sensor 7 during piston rod 6 rectilinear motions moves together, magnetostrictive displacement sensor 7 produces the analog voltage signal that is directly proportional with piston rod 6 displacements, be transformed to digital signal input data handling machine 1 through modulus and digital-to-analog conversion interface card 2, data handling machine 1 has obtained the shift value of pressurized strut urceolus 5, shift value obtains the velocity amplitude of pressurized strut through data handling machine 1 one subdifferentials, velocity amplitude just obtains the accekeration of pressurized strut urceolus 5 again through differential, shift value with six pressurized struts, velocity amplitude, accekeration just can be realized the complete detection to the 6-dof motion platform performance index by after data handling machine 1 conversion process.
Claims (1)
1, a kind of pick-up unit of 6-dof motion platform performance index, it is characterized in that: by data handling machine, modulus and digital-to-analog conversion interface card, servoamplifier, electrohydraulic servo valve, pressurized strut urceolus, piston rod, magnetostrictive displacement sensor is formed, and data handling machine is in order to receive magnetostrictive displacement sensor and to send the piston rod movement instruction; Modulus and digital-to-analog conversion interface card are installed on the data handling machine isa bus, are connected with magnetostrictive displacement sensor by feedback signal line, are connected with servoamplifier by control signal wire; Servoamplifier receives the analog voltage signal of modulus and digital-to-analog conversion interface card and controls electrohydraulic servo valve by signal conductor, the electronic compartment of magnetostrictive displacement sensor is installed on the pressurized strut urceolus, the movable magnet ring of magnetostrictive displacement sensor is installed on the piston rod, with piston rod movement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200929845U CN201289390Y (en) | 2009-02-11 | 2009-02-11 | Detection device for performance index of six freedom degree movement platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200929845U CN201289390Y (en) | 2009-02-11 | 2009-02-11 | Detection device for performance index of six freedom degree movement platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201289390Y true CN201289390Y (en) | 2009-08-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200929845U Expired - Fee Related CN201289390Y (en) | 2009-02-11 | 2009-02-11 | Detection device for performance index of six freedom degree movement platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201289390Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506900A (en) * | 2011-11-17 | 2012-06-20 | 大连理工大学 | Coordinate direction correction method in vision measurement system, and device thereof |
| CN106154760A (en) * | 2015-04-15 | 2016-11-23 | 上海微电子装备有限公司 | A kind of exposure device and exposure method |
-
2009
- 2009-02-11 CN CNU2009200929845U patent/CN201289390Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506900A (en) * | 2011-11-17 | 2012-06-20 | 大连理工大学 | Coordinate direction correction method in vision measurement system, and device thereof |
| CN106154760A (en) * | 2015-04-15 | 2016-11-23 | 上海微电子装备有限公司 | A kind of exposure device and exposure method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090812 Termination date: 20110211 |