CN202256088U - Detection cell of quartz crystal microbalance - Google Patents
Detection cell of quartz crystal microbalance Download PDFInfo
- Publication number
- CN202256088U CN202256088U CN2011203283860U CN201120328386U CN202256088U CN 202256088 U CN202256088 U CN 202256088U CN 2011203283860 U CN2011203283860 U CN 2011203283860U CN 201120328386 U CN201120328386 U CN 201120328386U CN 202256088 U CN202256088 U CN 202256088U
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- flange
- quartz crystal
- housing
- detection cell
- crystal slice
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Abstract
The utility model discloses a detection cell of a quartz crystal microbalance, belongs to the field of scientific detection instruments, and is applicable to detection of a liquid-phase sample. The detection cell of the quartz crystal microbalance is formed by filling a quartz crystal plate into a flange-shaped shell, wherein a convex step is arranged at a position, adjacent to a flange end, on the inner wall of the flange-shaped shell; the quartz crystal plate is placed on the step; the diameter of the quartz crystal plate is in zero clearance fit with the inner diameter of the flange-shaped shell; the flange-shaped shell is made of an elastic material; and two electrode contacts are positioned on one face of the quartz crystal plate. By adoption of the detection cell of the quartz crystal microbalance provided by the utility model, the influence of an assembly stress on the quartz crystal plate in the oscillating direction can be effectively avoided. Moreover, the detection cell of the quartz crystal microbalance has a simple structure, and can be flexibly assembled, disassembled or replaced.
Description
Technical field
The utility model relates to a kind of QCM detection cell, and the detection cell of quartz crystal slice promptly is housed, and is used for the liquid phase sample and detects.
Background technology
QCM (QCM) is a kind of novel sensor measuring technique.The principle that it utilizes the change of frequency of quartz vibrator to be directly proportional with the mass change of plane of crystal; But the mass change of detecting electrode surface n g level and solution viscosity, density, the isoparametric variation of modified membrane viscoelasticity; Have highly sensitive; Characteristics such as can measure in real time, can be used as the means that on-line tracing monitoring microprocess changes, aspects such as chemistry, material science, biology and medical science are carried out in the exploratory development of the microprocess and the mechanism of action and are demonstrated bright development prospect in modern times.
To QCM (QCM) detecting instrument of Liquid Detection object, its core component is the detection cell that quartz crystal slice is housed.Because the characteristic that quartz crystal slice had makes its installation and design in detection cell that higher requirement arranged, and under the situation of strict seal and insulation, avoids the additional erection stress of its orientation of oscillation that is: as far as possible.Prior art adopts O type O-ring seal or usually in measures such as quartz crystal slice outer rim heap glue; Can solve sealing and Insulation Problems; But can not well solve additional erection stress problem; Though perhaps consider the erection stress problem simultaneously, its design exists complex structure, the drawback of dismounting or replacing flexibly.For example one Chinese patent application number is 200910065451.2 " a kind of quartz crystal sensor detection cell ", " the on-the-spot QCM detection cell of CN2328998 galvanochemistry " that on April 14th, 2004 disclosed " CN1489825 chip quartz oscillator and liquid-phase sensor " and on June 5th, 1999, bulletin was authorized.
Summary of the invention
The utility model provides a kind of QCM detection cell to the deficiency of above-mentioned prior art, is intended to avoid quartz crystal slice to be installed in the erection stress of suffered orientation of oscillation in the detection cell, and dismounting or replacing flexibly.
For solving the problems of the technologies described above, the utility model is taked following technical scheme, a kind of QCM detection cell; Be made up of dress quartz crystal slice in the flange-like housing, near flange flange end place raised step be set in the flange-like inner walls, quartz crystal slice places this step place; The quartz crystal slice diameter cooperates with flange-like housing internal diameter zero stand-off; Be in tightening state to reach sealing effectiveness, the flange-like housing adopts resilient material, and quartz crystal slice adopts two electrode contacts to be positioned at the quartz crystal slice of one side; Two electrode contacts are towards the flange flange end, and flange flange is convenient to be connected flexibly with contact conductor mechanism as buckle.
For quartz crystal slice is cooperated with fit sealing with flange-like inner walls zero stand-off, can take the different structure form, one of which with the heating of flange-like housing, is installed the back cooling and is got final product before installing; Its two, earlier quartz crystal slice is placed in step place in the flange-like housing, again a rigidity pipe collar is enclosed within flange-like housing outer wall, the outer wall interference fit of the inwall of said rigidity pipe collar and flange-like housing; Its three, make it and the flange-like inner walls forms resilient tight fit at quartz crystal slice outer rim suit O RunddichtringO.
The beneficial effect of the QCM detection cell that the utility model provides is, can effectively avoid quartz crystal slice to be installed in the erection stress of suffered orientation of oscillation in the detection cell and simple in structure, dismounting or replacing flexibly.
Description of drawings
Fig. 1 is the outside drawing of the flange-like housing of the utility model;
Fig. 2 is the cut-open view of the flange-like housing of the utility model;
Fig. 3 for the embodiment 1 of the utility model with pack into the cut-open view of flange-like housing of quartz crystal slice;
Fig. 4 is pack into the cut-open view of quartz crystal slice and overcoat rigidity pipe collar of the embodiment 2 of the utility model;
Fig. 5 is the cut-open view that the embodiment 3 of the utility model installs with O RunddichtringO mode.
Among the figure, 1-flange-like housing, 2-inwall step, 3-quartz crystal slice, 4-rigidity pipe collar, 5-O RunddichtringO.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Shown in accompanying drawing, a kind of QCM detection cell is made up of dress quartz crystal slice 3 in the flange-like housing 1; Near flange flange end place protruding inwall step 2 is set at flange-like housing 1 inwall; Quartz crystal slice 3 places this step place, and quartz crystal slice 3 diameters cooperate with flange-like housing 1 internal diameter zero stand-off, are in tightening state and reach sealing effectiveness; Flange-like housing 1 adopts resilient material; Quartz crystal slice 3 adopts two electrode contacts to be positioned at the special-purpose quartz crystal slice of one side, and two electrode contacts are towards the flange flange end, and flange flange is convenient to be connected flexibly with contact conductor mechanism as buckle.For quartz crystal slice 3 is cooperated with fit sealing with flange-like housing 1 inwall zero stand-off, can take different structure type.
Embodiment 1, like Fig. 2, shown in Figure 3, processes flange-like housing 1 with elastic-plastic material, 1 heating of flange-like housing slightly softened and made it expand, and again quartz crystal slice 3 is placed in flange-like housing 1 inwall step 2 places, and cooling gets final product.
Claims (4)
1. QCM detection cell; Mainly constitute, it is characterized in that, protruding inwall step (2) is set at said flange-like housing (1) inwall by flange-like housing and quartz crystal slice; Quartz crystal slice (3) places this step place; Quartz crystal slice (3) diameter cooperates with flange-like housing (1) internal diameter zero stand-off, and flange-like housing (1) adopts resilient material, and quartz crystal slice (3) adopts two electrode contacts to be positioned at the quartz crystal slice of one side.
2. QCM detection cell according to claim 1 is characterized in that, with flange-like housing (1) thermoplastic, again quartz crystal slice (3) is placed in flange-like housing (1) inwall step (2) and locates.
3. QCM detection cell according to claim 1; It is characterized in that; Quartz crystal slice (3) is placed in flange-like housing (1) inwall step (2) to be located; Again a rigidity pipe collar (4) is enclosed within flange-like housing (1) outer wall, the outer wall interference fit of the inwall of said rigidity pipe collar (4) and flange-like housing (1).
4. QCM detection cell according to claim 1; It is characterized in that; At quartz crystal slice (3) outer rim suit O RunddichtringO (5), be placed in flange-like housing (1) inwall step (2) then and locate, make it to form resilient tight fit with flange-like housing (1) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203283860U CN202256088U (en) | 2011-09-03 | 2011-09-03 | Detection cell of quartz crystal microbalance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203283860U CN202256088U (en) | 2011-09-03 | 2011-09-03 | Detection cell of quartz crystal microbalance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256088U true CN202256088U (en) | 2012-05-30 |
Family
ID=46117312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203283860U Expired - Lifetime CN202256088U (en) | 2011-09-03 | 2011-09-03 | Detection cell of quartz crystal microbalance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256088U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980826A (en) * | 2011-09-03 | 2013-03-20 | 崔学晨 | Quartz crystal microbalance detection cell |
| WO2018146348A1 (en) * | 2017-02-13 | 2018-08-16 | Advanced Wave Sensors, S.L. | Measuring cell |
| CN115683291A (en) * | 2022-11-16 | 2023-02-03 | 兰州空间技术物理研究所 | Integrated type difference frequency quartz crystal microbalance |
-
2011
- 2011-09-03 CN CN2011203283860U patent/CN202256088U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102980826A (en) * | 2011-09-03 | 2013-03-20 | 崔学晨 | Quartz crystal microbalance detection cell |
| WO2018146348A1 (en) * | 2017-02-13 | 2018-08-16 | Advanced Wave Sensors, S.L. | Measuring cell |
| CN110268236A (en) * | 2017-02-13 | 2019-09-20 | 高级波传感器有限责任公司 | Measuring unit |
| CN115683291A (en) * | 2022-11-16 | 2023-02-03 | 兰州空间技术物理研究所 | Integrated type difference frequency quartz crystal microbalance |
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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: Henan Kerui Science and Technology Co., Ltd. Assignor: Cui Xuechen Contract record no.: 2012410000017 Denomination of utility model: Quartz crystal microbalance detection cell Granted publication date: 20120530 License type: Exclusive License Record date: 20120313 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |