CN201858969U - Micro-distance detector - Google Patents
Micro-distance detector Download PDFInfo
- Publication number
- CN201858969U CN201858969U CN2010205826405U CN201020582640U CN201858969U CN 201858969 U CN201858969 U CN 201858969U CN 2010205826405 U CN2010205826405 U CN 2010205826405U CN 201020582640 U CN201020582640 U CN 201020582640U CN 201858969 U CN201858969 U CN 201858969U
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- microspur
- piston type
- conduit
- detector according
- piston
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Abstract
The utility model discloses a micro-distance detector, which comprises a piston type storage unit and a guide pipe. The piston type storage unit is used for storing a measuring medium, the guide pipe is communicated with a measuring medium storage cavity of the piston type storage unit, and the area of the cross section of the guide pipe is smaller than that of the cross section of the storage cavity. According to the principle that the lengths of measuring media in the same volume in the piston type storage unit and the guide pipe are different, an object to be measured is amplified, different amplification factors can be obtained by selecting piston type storage units and guide pipes with different cross sectional areas, and accordingly the micro-distance detector is wider in application range and high in measurement precision. Simultaneously, the piston type storage unit and the guide pipe are simple in structure and low in manufacturing cost. Furthermore, the micro-distance detector is simple in operation method and convenient in debugging.
Description
Technical field
The utility model relates to a kind of detecting instrument of measuring distance, particularly a kind of detecting instrument that detects slight distance.
Background technology
Often relate to the measurement of slight distance in Physical Experiment and the actual engineering, its measuring method mainly is that the small quantity that will not directly read zooms into and can directly read, i.e. amplifying method.The amplification method of using always has:
1. accumulation amplifying method
Under measured physical quantity can simply overlapping condition, with its overlapping several times, measure again, be called the accumulation amplifying method.For example, desire is measured the thickness of a piece of paper, can measure the thickness of a stacker, again divided by number, and for example with single pendulum check weighing power acceleration the time, when surveying period of single pendulum with stopwatch, measures the T.T. of 50 swings, obtains period of single pendulum again.The accumulation amplifying method does not change character to be measured in measurement, just with overlapping several times to be measured, in general method is also fairly simple.But limitation is also bigger, and only being suitable for has cumulative physical quantity when measuring.
2. mechanical amplifying method
Utilize the geometric relationship between the mechanical part, measured physical quantity is exaggerated in measuring process.The machinery amplifying method can improve the resolution of surveying instrument, increases the number of significant figures of measurement result.For example the spiral dial gauge utilizes screw mechanism to make the minimum scale of instrument become 0.01mm from 1mm.Vernier caliper utilizes vernier to amplify reading.Machinery amplifying method cost is lower, and principle is simple, but enlargement factor has limitation.
3. electromagnetism amplifying method
Faint electric signal is measured effectively and observed, usually by means of the amplifying circuit in the electrotechnics.The amplification of electric signal can be voltage amplification, electric current amplification, power amplification, electric signal can also be exchange or direct current.Along with the development of microelectric technique and electron device, the amplification of various electric signal all is easy to realize, thereby uses relatively extensively.For example, utilizing the photoelectric effect method to measure in the experiment of Planck constant, is exactly after feeble signal is passed through amplifying circuit, to measure again.Utilize electronic device can intuitively show measurement data in addition; Enlargement factor is bigger, but the electronic device cost is higher, is not suitable for common survey.
4. optics amplifying method
The instrument that optics amplifies has magnifier, microscope and telescope.This quasi-instrument just under observation amplifies the visual angle, is not the variation of physical size, so do not increase error.Thereby many exact instrument all are to add a visual angle multiplying arrangement to improve measuring accuracy on last reading device.The optics amplifying method has two kinds, and a kind of is exactly to make determinand form the picture that amplifies by optical instrument, so that observe.Survey filament diameter as amplifying interference fringe with microscope.Another kind is by measuring the physical quantity after amplifying, measuring in a small amount indirectly.As in surveying Young modulus, utilize optical lever to measure tinsel after being subjected to tension, the subtle change that length takes place.Generally speaking optics amplifying method enlargement factor is higher, and stability is better, but optics amplifying method debugging more complicated, and optical instrument is more expensive.
Therefore need a kind of microspur detecting instrument that scope is wide, amplification range big, debugging is simple, price is low that uses.
The utility model content
In view of this, the purpose of this utility model provides a kind of microspur detector, it is simple in structure, low cost of manufacture, debugging convenient, big to measured enlargement factor, the utilization scope is wider.
The utility model microspur detector comprises being used to store the piston type storer of measuring media and the conduit that is communicated with the measuring media storage chamber of piston type storer that the cross-sectional area of described conduit is less than the cross-sectional area in storage chamber.
Further, flowmeter is set or/and conduit is provided with scale mark on the described duct conduits;
Further, the piston rod end of described piston type storer is provided with detection probe;
Further, the piston rod of described piston type storer and piston cylinder are provided with and extend radially outward also and can fit mutually vertically and the catch that separates;
Further, described duct inlet is provided with the valve I, and described measuring media storage chamber is provided with the valve II;
Further, described conduit is straight tube or Yu Huishi bend pipe;
Further, described conduit cross section edge is a triangle;
Further, described conduit is connected with the piston type storer is detachable;
Further, described detection probe is the thimble with the piston rod axially parallel.
The beneficial effects of the utility model: the utility model microspur detector, utilize equal volume measuring media different principle of its length in piston type storer and conduit to amplify to measured, can obtain different enlargement factors with conduit by selecting the long-pending piston type storer of varying cross-section, the amplification range broad, the measuring accuracy height, piston type storer and guide-tube structure are simple simultaneously, low cost of manufacture, and this microspur detector method of operating is simple, and debugging is convenient.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the microspur detector structural representation of band straight catheter;
Fig. 2 is the microspur detector structural representation of the utility model band flowmeter;
Fig. 3 is the microspur detector structural representation of band winding type conduit;
Fig. 4 is along the cut-open view of A-A among Fig. 1.
Embodiment
Fig. 1 is the microspur detector structural representation of band straight catheter; Fig. 2 is the microspur detector structural representation of the utility model band flowmeter; Fig. 3 is the microspur detector structural representation of band winding type conduit; Fig. 4 is along the cut-open view of A-A among Fig. 1.
As shown in the figure, the utility model microspur detector, comprise being used to store the piston type storer 1 of measuring media and the conduit 2 that is communicated with the measuring media storage chamber 1a of piston type storer 1, the cross-sectional area of described conduit 2 is less than the cross-sectional area of measuring media storage chamber 1a.The detection principle of this microspur detector is: the displacement that tested distance is converted into piston, its length in conduit 2 of measuring media of utilizing equal volume is greater than the displacement of amplifying piston in the length in measuring media storage chamber 1a, thereby that will not directly read measuredly is converted to readable amount, detecting operation is simple and convenient, can obtain different enlargement factors with conduit by selecting the long-pending piston type storer of varying cross-section, amplification range is big, and measurement result is accurate.
In the present embodiment: described conduit is provided with the scale mark 4(that measures length can certainly or be arranged at flowmeter 3 on the duct conduits for volume markings), intuitive measurement results is directly promptly known tested distance divided by enlargement factor with reading.
In the present embodiment: the piston rod end of described piston type storer is provided with detection probe 5, described detection probe 5 is specially the thimble with the piston rod axially parallel, the thimble tip is less, be convenient to small items is detected, but detection probe 5 also can be the devices such as chuck of clamping small objects certainly.
In the present embodiment: the piston rod of described piston type storer and piston cylinder are provided with to extend radially outward also and can fit mutually vertically and the catch 6 that separates, and described conduit 2 imports are provided with valve I 7, and described measuring media storage chamber is provided with valve II 8; Can utilize catch 6 to measure the diameter of small objects, concrete operations are: valve-off I 7, Open valve II 8 is put in small objects between two catch 6, promotes piston rod two catch 6 are just contacted with small objects, the valve-off II 8 then, Open valve I 7 is taken away small objects, promotes piston rod again two catch 6 are fitted, read the length that enters measuring media in the conduit, again reading can be obtained the diameter of small objects divided by enlargement factor.
In the present embodiment: described conduit is straight tube or winding type bend pipe, and winding type bend pipe length is longer, can be used for the bigger microspur detector of enlargement factor.
In the present embodiment: described conduit 2 cross-sectional edge are triangle, can amplify scale mark, make reading more accurate.
In the present embodiment: described conduit 2 and 1 detachable connection of piston type storer, be convenient to change different conduit 2.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (9)
1. microspur detector, it is characterized in that: comprise being used to store the piston type storer (1) of measuring media and the conduit (2) that is communicated with the measuring media storage chamber (1a) of piston type storer (1), the cross-sectional area of described conduit (2) is stored the cross-sectional area of chamber (1a) less than measuring media.
2. microspur detector according to claim 1 is characterized in that: flowmeter (3) is set or/and conduit is provided with scale mark (4) on the described duct conduits.
3. microspur detector according to claim 2 is characterized in that: the piston rod end of described piston type storer is provided with detection probe (5).
4. microspur detector according to claim 3 is characterized in that: the piston rod of described piston type storer and piston cylinder are provided with to extend radially outward also and can fit mutually vertically and the catch that separates (6).
5. microspur detector according to claim 4 is characterized in that: described conduit (2) import is provided with valve I (7), and described measuring media storage chamber is provided with valve II (8).
6. microspur detector according to claim 5 is characterized in that: described conduit is straight tube or winding type bend pipe.
7. microspur detector according to claim 6 is characterized in that: described conduit (2) cross-sectional edge is a triangle.
8. microspur detector according to claim 7 is characterized in that: described conduit (2) and detachable connection of piston type storer (1).
9. microspur detector according to claim 8 is characterized in that: described detection probe (5) for the thimble of piston rod axially parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205826405U CN201858969U (en) | 2010-10-29 | 2010-10-29 | Micro-distance detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205826405U CN201858969U (en) | 2010-10-29 | 2010-10-29 | Micro-distance detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201858969U true CN201858969U (en) | 2011-06-08 |
Family
ID=44104774
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205826405U Expired - Fee Related CN201858969U (en) | 2010-10-29 | 2010-10-29 | Micro-distance detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201858969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808282A (en) * | 2014-03-17 | 2014-05-21 | 重庆交通大学 | Anchorage structure displacement monitoring device and method |
-
2010
- 2010-10-29 CN CN2010205826405U patent/CN201858969U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103808282A (en) * | 2014-03-17 | 2014-05-21 | 重庆交通大学 | Anchorage structure displacement monitoring device and 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: 20110608 Termination date: 20111029 |