CN2490562Y - Electric contact probe - Google Patents
Electric contact probe Download PDFInfo
- Publication number
- CN2490562Y CN2490562Y CN 01248749 CN01248749U CN2490562Y CN 2490562 Y CN2490562 Y CN 2490562Y CN 01248749 CN01248749 CN 01248749 CN 01248749 U CN01248749 U CN 01248749U CN 2490562 Y CN2490562 Y CN 2490562Y
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- face
- utility
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- contacts
- contact probe
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- 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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- Geophysics And Detection Of Objects (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The utility model relates to an electric contact probe for measuring the resistance of the geological layer of earth in the engineering geology surveying, which comprises a detecting device arranged inside a pipe cavity in which a cone tine is connected by a cone tine guiding sleeve with a probe bar, an end face of an aft part of a crown pillar of the detecting device contacting a bottom face of the cone tine along the axial direction contacts an end face of a piezoelectricity sensing element, a positioning block connected by internal thread with the probe bar contacts the other end face of the piezoelectricity sensing element. The utility model has the advantages of a simple structure and convenient manufacture, assembly and use; in addition, the utility model can also complete the measurement of the resistance of the geological layer of earth in the complicated geological environment and has good stability.
Description
Technical field
The utility model relates to a kind of sensor, in particular for the electrical measurement contact probe of in the engineering geology exploration geology soil layer resistance being measured.
Background technology
At present, in the work of engineering geology exploration, geology soil layer resistance is carried out measured sensor and be generally resistance-strain type probe and inductance type probe, above-mentioned two kinds of probes all are by behind the flexible member stress deformation in the probe rod, measure deflection by foil gauge or inductance measurement head, because resistance and deflection are proportional, unearthed layer resistance value of conversion and the situation of change that reflects resistance.The performance of one side foil gauge and inductance measurement head and flexible member all directly has influence on final measured value in the said structure, but also exists the problem that is subjected to complicated geological environment and its result of use of influence of temperature change and measuring accuracy; Thereby complex structure, making, use inconvenience.
Summary of the invention
The purpose of this utility model provides the electrical measurement contact probe of a kind of simple in structure, making, measurement geology soil layer resistance easy to use.
For achieving the above object, the utility model electrical measurement contact probe comprises that the sharp guide pin bushing of awl will bore in sharp and the tube chamber that probe rod is connected and is provided with sniffer, this sniffer contacts with the end face of piezoelectric sensor for the tail end face with the axial fore-set that contacts in the sharp bottom surface of awl, and the locating piece that is connected with the probe rod internal thread contacts with the other end of piezoelectric sensor.
Described piezoelectric sensor is at least one.
After adopting said structure, the awl point bears the soil layer resistance and is passed to piezoelectric sensor by fore-set in exploration work, directly be converted to the voltage signal that is directly proportional with the soil layer resistance by piezoelectric sensor, be delivered to potential difference meter, outputting measurement value and change in resistance curve.
As further improvement of the utility model, can set up a fore-set soon and between the piezoelectric sensor in the location.
The utility model has the advantages that: simple in structure, processing and fabricating, easy to use; Can carry out surveying work under the geologic media of complexity continuously, stability better.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the utility model electrical measurement contact probe.
Embodiment
Show as Fig. 1, the utility model electrical measurement contact probe comprises that boring sharp guide pin bushing 4 by steel is equipped with sniffer with in steel and the tube chamber that steel probe rod 1 is connected, afterbody at awl point 6, bore between sharp guide pin bushing 4 and the probe rod 1 sealing ring 5 is arranged, this sniffer is that an end face of the piezoelectric sensor 3 of the rigidity of tail end face and two overlapping placements of the fore-set 7 that axially contact with sharp 6 bottom surfaces of awl or flexibility contacts, the other end of piezoelectric sensor 3 contacts with another fore-set, and the steel locating piece 2 that is connected with probe rod 1 internal thread contacts with fore-set 7 end faces.
In the exploration of reality is used, because the awl point 6 of probe bears geology soil layer resistance at work, acting force is passed to piezoelectric sensor 3 by fore-set, self directly be converted to the voltage signal that is directly proportional with the soil layer resistance by piezoelectric sensor 3, be delivered to potential difference meter, the change curve of output measurement result and soil layer resistance.
The utlity model has simple in structure, making, installation, easy to use; In exploration work, can prevent to be subjected to the generation of complicated geological environment and this type of problem of temperature drift effects measurement result preferably, better working stability.
Claims (3)
1, a kind of electrical measurement contact probe, it comprises by boring sharp guide pin bushing (4) will bore in point (6) and the tube chamber that probe rod (1) is connected and be provided with sniffer, it is characterized in that: described sniffer contacts with the end face of piezoelectric sensor (3) for the breech face with the axial fore-set (7) that contacts in awl point (6) bottom surface, and the locating piece (2) that is connected with probe rod (1) internal thread contacts with the other end of piezoelectric sensor (3).
2, electrical measurement contact probe according to claim 1 is characterized in that: described piezoelectric sensor (3) is at least one.
3, electrical measurement contact probe according to claim 2 is characterized in that: be provided with fore-set (7) between location fast (2) and piezoelectric sensor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248749 CN2490562Y (en) | 2001-07-17 | 2001-07-17 | Electric contact probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01248749 CN2490562Y (en) | 2001-07-17 | 2001-07-17 | Electric contact probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2490562Y true CN2490562Y (en) | 2002-05-08 |
Family
ID=33659318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01248749 Expired - Fee Related CN2490562Y (en) | 2001-07-17 | 2001-07-17 | Electric contact probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2490562Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567644A (en) * | 2014-12-18 | 2015-04-29 | 浙江工业职业技术学院 | Digital measurement device for infinitesimal displacement |
| CN107532950A (en) * | 2015-04-30 | 2018-01-02 | 基斯特勒控股公司 | Contact force test device, the application of this contact force test device and the method for manufacturing this contact force test device |
-
2001
- 2001-07-17 CN CN 01248749 patent/CN2490562Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567644A (en) * | 2014-12-18 | 2015-04-29 | 浙江工业职业技术学院 | Digital measurement device for infinitesimal displacement |
| CN107532950A (en) * | 2015-04-30 | 2018-01-02 | 基斯特勒控股公司 | Contact force test device, the application of this contact force test device and the method for manufacturing this contact force test device |
| CN107532950B (en) * | 2015-04-30 | 2021-05-11 | 基斯特勒控股公司 | Contact force testing device, use of such a contact force testing device and method for producing such a contact force testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Shunya Document name: Notification of Termination of Patent Right |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |