CN200989810Y - Weighing apparatus - Google Patents
Weighing apparatus Download PDFInfo
- Publication number
- CN200989810Y CN200989810Y CN 200620121429 CN200620121429U CN200989810Y CN 200989810 Y CN200989810 Y CN 200989810Y CN 200620121429 CN200620121429 CN 200620121429 CN 200620121429 U CN200620121429 U CN 200620121429U CN 200989810 Y CN200989810 Y CN 200989810Y
- Authority
- CN
- China
- Prior art keywords
- slit
- lever
- micro
- laser instrument
- photelectric receiver
- 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.)
- Expired - Fee Related
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model relates to a device which weighs quality for micro things adopting a method of diffraction of light. The device is especially applicable to measure the micro things. The utility model comprises a specimen for measuring, a salver, a lever, a spring, a slit, a zeroing setting of the slit, an optical maser and a photoelectric receiver. Laser bean is diffracted through the slit. The weight of micro things influences width of the diffraction slit by leverage to change light intensity and position of diffraction light. Variable quantity of the light intensity can be converted to outputs of electrical signal by the photoelectric receiver to implement measure of micro things quality. The utility model has the advantages of high-sensitivity, convenient use, excellent reliability etc.
Description
Technical field
The utility model relates to a kind of device that adopts the diffraction of light method that micro-object quality is carried out weighing.This device is specially adapted to the weighing to micro-object.
Background technology
In recent years, all kinds electronic weighting equipment comes into operation in succession.They are by pressure transducer, particularly adopt the pressure resistance type forwarder to realize purpose to the object quality weighing.Its principle is the variation that has a resistance behind the sensitive core body pressurized, by amplifying circuit changes in resistance is converted into standard signal output again, this signal is calibrated the measurement that reaches the object quality.This type of electronic scale is difficult to accurate weighing to micro-object.The invention and the application of novel meausring apparatus are urgently wished in market.
Summary of the invention
Task of the present utility model just provides a kind of diffraction of light method that adopts and comes the device that micro-object is measured.
Task of the present utility model is to realize like this, device is made of lever, pallet, spring, slit body, photelectric receiver, laser instrument, one side end points of lever links to each other with the pallet of placing object, another end points top of lever connects spring, the below is hung the slit body from above, and laser instrument, photelectric receiver and slit are on the same axis.Spring plays equilibrium activity, and when in the pallet during no weighing object, spring is the lever relative equilibrium of zeroing, and is fixed on zero point; Slit in the slit body that hangs from above of below is on the axis of the laser emission point of laser instrument and photelectric receiver laser pick-off point, after pallet is placed the weighing object, the lever balance of zeroing is destroyed, the width of slit changes, thereby changed the light intensity that laser beam is passed slit, the state that slit produces diffraction also changes thereupon, and its result is reflected on the photelectric receiver, realizes the purpose of weighing by the electric shows signal of output.
Described laser instrument is HeNe laser instrument or semiconductor laser.
Said photelectric receiver is any to diffraction intensity variation sensing sensitivity, the signal of light intensity can be converted into the photoelectric receiving device of electric signal output.
Description of drawings
Accompanying drawing is a synoptic diagram of the present utility model.A is an object for the treatment of weighing among the figure, and B is a pallet of placing object, and C is a lever, and G is a spring, and H is a slit.One side of lever C links to each other with pallet B, and another side is connected with the first half of slit H.D is a laser instrument, and E is the slit balancing controls, can regulate slit H width size by E, thereby reach the zeroing effect.F is a photelectric receiver.
Embodiment
The device of accompanying drawing will become the main device of electronic scale, be used for the weighing to micro-object.In the time of above object under test A places pallet B, the lever C left side descends, and rises in the right, thereby causes the change of slit H width.And the laser of launching from laser instrument D, because the variation of slit H width, its diffraction light intensity and position change.Photelectric receiver F can be converted into electric signal with the light intensity variable quantity that receives, and finally demonstrates the quality of object under test on electronic curtain.Because the subtle change of slit H width will cause the great changes that arrive the diffraction light on the photelectric receiver F, so with the device sensitivity height, can realize the weighing of micro-object.In addition, it also has advantages such as easy to use, good reliability.
Claims (3)
1, a kind of novel meausring apparatus, comprise by treating that weighing object, pallet, lever, spring, slit, slit balancing controls, laser instrument and photelectric receiver form, it is characterized in that device is made of lever, pallet, spring, slit body, photelectric receiver, laser instrument, one side end points of lever links to each other with the pallet of placing object, another end points top of lever connects spring, the below is hung the slit body from above, and laser instrument, photelectric receiver and slit are on the same axis.
2, meausring apparatus according to claim 1 is characterized in that said laser instrument is HeNe laser instrument or semiconductor laser.
3, according to the described meausring apparatus of claim i, it is characterized in that said photelectric receiver, is any to diffraction intensity variation sensing sensitivity, the signal of light intensity can be converted into the photoelectric receiving device of electric signal output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620121429 CN200989810Y (en) | 2006-06-27 | 2006-06-27 | Weighing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620121429 CN200989810Y (en) | 2006-06-27 | 2006-06-27 | Weighing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200989810Y true CN200989810Y (en) | 2007-12-12 |
Family
ID=38940847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620121429 Expired - Fee Related CN200989810Y (en) | 2006-06-27 | 2006-06-27 | Weighing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200989810Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063279A (en) * | 2012-12-24 | 2013-04-24 | 西南大学 | Air chamber photoelectric measurement scale |
| CN112284917A (en) * | 2020-10-13 | 2021-01-29 | 青岛滨海学院 | Device and method for measuring Young modulus of metal wire by utilizing diffraction of light |
-
2006
- 2006-06-27 CN CN 200620121429 patent/CN200989810Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063279A (en) * | 2012-12-24 | 2013-04-24 | 西南大学 | Air chamber photoelectric measurement scale |
| CN103063279B (en) * | 2012-12-24 | 2014-12-17 | 西南大学 | Air chamber photoelectric measurement scale |
| CN112284917A (en) * | 2020-10-13 | 2021-01-29 | 青岛滨海学院 | Device and method for measuring Young modulus of metal wire by utilizing diffraction of light |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fuzhou Fuda Photoelectric Equipment Co., Ltd. Assignor: Fujian Normal University Contract fulfillment period: 2008.12.1 to 2013.11.30 Contract record no.: 2008350000225 Denomination of utility model: Weighing apparatus Granted publication date: 20071212 License type: Exclusive license Record date: 20081229 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.12.1 TO 2013.11.30; CHANGE OF CONTRACT Name of requester: FUZHOU FALDAN PHOTOELECTRIC EQUIPMENT CO., LTD. Effective date: 20081229 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071212 |