CN202995052U - Instrument for measuring geomagnetic declination and inclination - Google Patents
Instrument for measuring geomagnetic declination and inclination Download PDFInfo
- Publication number
- CN202995052U CN202995052U CN 201220261317 CN201220261317U CN202995052U CN 202995052 U CN202995052 U CN 202995052U CN 201220261317 CN201220261317 CN 201220261317 CN 201220261317 U CN201220261317 U CN 201220261317U CN 202995052 U CN202995052 U CN 202995052U
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- China
- Prior art keywords
- bar magnet
- sensor
- declination
- geomagnetic declination
- inclination
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- Expired - Lifetime
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Abstract
The utility model provides a novel instrument for measuring geomagnetic declination and inclination. The instrument consists of a geomagnetic declination and inclination sensor and a data acquiring and processing unit. The geomagnetic declination and inclination sensor adopts a metal aluminum tube as a housing and is completely sealed after being already adjusted. The geomagnetic declination and inclination sensor has an interior structure where a tailor-made magnetic rod and a reflector are fixed at one end of the aluminum tube and a damping plate with a certain size is fixed at a certain distance below the magnetic rod and the reflector. Swinging of the magnetic rod is rapidly stabilized through electromagnetic damping, so that measured data are relatively true and accurate. A laser and a two-dimensional position sensor with relatively high resolution are disposed at the other end of the metal aluminum tube. The position sensor measures the declination and the inclination of the geomagnetic field through the change in the position of a light source that is sensed by the position sensor. Then, data on the measured geomagnetic declination and inclination are amplified, are subjected to AD conversion, are stored and acquired by the data acquiring and processing unit. Finally, the data are transmitted to a local client and a remote client so as to facilitate storage, summarization and analysis of observation data.
Description
Affiliated technical field
The utility model relates to a kind of observation instrument of measuring drift angle, terrestrial magnetic field and change of pitch angle.
Background technology
Existing market magnetic declination instrument used is to utilize optical lever method to measure magnetic declination mostly, and its principle of work is to hang a bar magnet with suspension, fixes a catoptron on bar magnet, uses the light irradiation catoptron, and utilizing emitted light is radiated at scaleplate and obtains reading after overconvergence.Its shortcoming: 1, be difficult for settling out after bar magnet deflection, easily swing, be difficult to reading; 2, do light source with lamp, reflected light is more weak, is difficult for seeing clearly; 3, index dial is wanted 1.8 meters at least apart from catoptron, is subject to the Air Flow impact; 4, can not measure magnetic dip; 5, can only visual observation, manual record, resolution is not high, can not automatic Observation, with the observation data digitizing.
Summary of the invention
The utility model provides a kind of new inclination angle, measurement terrestrial magnetic field and the instrument of drift angle for above deficiency, and this instrument is processed Acquisition Instrument by geomagnetic declination and obliquity sensor, data and formed.Wherein geomagnetic declination and obliquity sensor employing metal aluminum pipe is shell, sealing fully after debugging is good.Its inner structure be the fixing special bar magnet of aluminum pipe one end and catoptron and below bar magnet and catoptron the fixing damping sheet of certain size at a certain distance, make the swing of bar magnet stable rapidly by electromagnetic damping, make more true and accurate of measured data.Place laser instrument and the higher two-dimension displacement sensor of resolution at the metal aluminum pipe other end.Displacement transducer is by measuring drift angle and the inclination angle of geomagnetic field with the change in location of the light source of its induction, then the magnetic declination of surveying and magnetic dip data by data process that Acquisition Instrument amplifies, AD conversion, storage, data acquisition, pass at last local client and Terminal Server Client to the observation data storage, gather and analyze.
The technical scheme that its technical matters that solves the utility model adopts is:
The utility model is processed Acquisition Instrument by geomagnetic declination and obliquity sensor, data and is formed, its sensor monitor primitively magnetic signal send into data by signal connecting line and process in Acquisition Instrument and process.And Sensor section is that level is fixed a metal aluminum pipe and done shell on stable base, one end of aluminum pipe is the sensor installation end, the other end is stationary mirror and bar magnet (1) end, fix one perpendicular to the aluminium pipe of aluminum pipe on catoptron and bar magnet (1) end, the top center of the aluminium pipe suspension (torsion is minimum) that hangs down, be connected barycenter and connect in the suspension lower end with bar magnet, bar magnet one end and copper rod identical in quality are fixed, the other end is perpendicular to bar magnet axial restraint catoptron, adjusting screw is arranged on copper rod, can regulate the level angle of bar magnet integral body.Lay the electromagnetic damping aluminium sheet under bar magnet, when bar magnet swings, can settle out rapidly under the electromagnetic damping effect, stable output is reading accurately.The sensor side of aluminum pipe adjusts by two inclination angle zeroing nut support the level inclination that two nuts can change the aluminum pipe two ends, adjusts magnetic dip and makes zero.The sensor side of aluminum pipe also is equipped with the drift angle null setting, can around bar magnet end left rotation and right rotation, adjust magnetic declination and make zero under it promotes.The sensor side inside of aluminum pipe is fixed with two-dimension displacement sensor and laser instrument, the laser beam of laser instrument emission projects on the catoptron of bar magnet, reflect and project on two-dimension displacement sensor, two-dimension displacement sensor will throw the laser spots position of coming and be converted into electric signal output.A calibration coil is fixed on the sensor side top of aluminum pipe, and the magnetic field that produces when coil electricity exerts an influence to bar magnet, makes bar magnet deflection certain angle, and whether the consistance of the variation of this reading is in the sign of normal operating conditions as calibrating instrument.
The beneficial effects of the utility model are:
1, adopt laser to do light source, have brightness high, disperse littlely, the advantage such as luminous point is little is that the data of observation are more accurate.This instrument can be realized the local and remote Real-time Collection observing function of data in addition.
2, drift angle null setting and inclination angle balancing controls also are housed in sensor, have improved the accuracy of the data of surveying, reduced the requirement to installation environment.
3, sensor employing metallic aluminium is shell, and sealing fully after debugging is good is subjected to ectocine little.
4, the electromagnetic damping plate has been installed below bar magnet, can have been made the swing fast and stable of bar magnet so that observation.
5, calibration coil is installed, can whether be in normal operating conditions by calibrating instrument.
Description of drawings
Fig. 1 is structural drawing of the present utility model.
In figure 1, catoptron and bar magnet, 2, damping sheet, 3, shell, 4, displacement transducer, 5, the drift angle null setting, 6, laser instrument, 7, inclination angle zeroing nut, 8, base, 9, suspension, 10, calibration coil, 11, the aluminium pipe.
Embodiment
As shown in the figure: wherein geomagnetic declination and obliquity sensor adopt the metal aluminum pipe to make shell (3) to seal, its inner structure is the bar magnet end at the metal aluminum pipe, catoptron and bar magnet (1) interfix, and hang on the top by suspension (9), can around vertically to level to free rotation, the change of indication magnetic dip and magnetic declination.Aluminium pipe (11) top is fixed in suspension (9) upper end, and torsion is very little.Damping sheet (2) is fixed in bottom shell (3), under catoptron and bar magnet (1), makes the swing of bar magnet (1) stable rapidly by electromagnetic damping, obtains fast drift angle and the inclination data of measured geomagnetic field.The irradiation that laser instrument (6) sends is on catoptron (1), then shine again after reflection on displacement transducer (4), displacement transducer (4) is measured drift angle and the inclination angle of geomagnetic field by the change in location of responding to the luminous point on it with it, then the magnetic declination of surveying and magnetic dip data by data process that Acquisition Instrument amplifies, AD conversion, storage and data acquisition.The utility model also is equipped with balancing controls adjusts its axial direction by drift angle null setting (5), and after the measured data of instrument made zero, adjustable inclination zeroing nut (7) made zero the instrument magnetic dip.The utility model inside is equipped with calibration coil (10) in addition, can whether be in normal operating conditions by calibrating instrument.
Claims (4)
1. a geomagnetic declination and drift indicator, processing Acquisition Instrument by geomagnetic declination and obliquity sensor, data forms, it is characterized in that: geomagnetic declination and obliquity sensor are to fix a metal aluminum pipe in the upper level of stable base (8) to do shell (3), one end of aluminum pipe is the sensor installation end, the other end is stationary mirror and bar magnet (1) end, fix one on catoptron and bar magnet (1) end perpendicular to the aluminium pipe (11) of aluminum pipe, the top center of aluminium pipe (11) suspension (9) that hangs down, suspension (9) lower end are connected barycenter and are connected with bar magnet.
2. geomagnetic declination as claimed in claim 1 and drift indicator, it is characterized in that: bar magnet one end and copper rod identical in quality are fixed, the other end is perpendicular to bar magnet axial restraint catoptron, adjusting screw is housed on copper rod, lay electromagnetic damping plate (2) under catoptron and bar magnet (1), the sensor side of aluminum pipe is supported by two inclination angle zeroing nuts (7).
3. geomagnetic declination as claimed in claim 1 and drift indicator, it is characterized in that: the sensor side of aluminum pipe also is equipped with drift angle null setting (5), this sensor side is fixed with two-dimension displacement sensor (4) and laser instrument (6), the laser beam of laser instrument (6) emission projects on the catoptron of bar magnet, reflects to project on two-dimension displacement sensor (4).
4. geomagnetic declination as claimed in claim 1 and drift indicator is characterized in that: a calibration coil (10) is fixed on the sensor side top of aluminum pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261317 CN202995052U (en) | 2012-06-05 | 2012-06-05 | Instrument for measuring geomagnetic declination and inclination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220261317 CN202995052U (en) | 2012-06-05 | 2012-06-05 | Instrument for measuring geomagnetic declination and inclination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202995052U true CN202995052U (en) | 2013-06-12 |
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ID=48566220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220261317 Expired - Lifetime CN202995052U (en) | 2012-06-05 | 2012-06-05 | Instrument for measuring geomagnetic declination and inclination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202995052U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549102A (en) * | 2016-02-03 | 2016-05-04 | 南京信息工程大学 | Terrestrial magnetism horizontal component dynamic supervising device |
| CN105548918A (en) * | 2016-02-03 | 2016-05-04 | 南京信息工程大学 | Device for measuring terrestrial magnetism horizontal component |
| CN107390277A (en) * | 2017-07-19 | 2017-11-24 | 中国地震局地球物理研究所 | A kind of absolute earth magnetism observation procedure of high-precision automatic |
| CN110146833A (en) * | 2019-05-30 | 2019-08-20 | 核工业理化工程研究院 | Magnetic steel component measurement method based on LABVIEW |
-
2012
- 2012-06-05 CN CN 201220261317 patent/CN202995052U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549102A (en) * | 2016-02-03 | 2016-05-04 | 南京信息工程大学 | Terrestrial magnetism horizontal component dynamic supervising device |
| CN105548918A (en) * | 2016-02-03 | 2016-05-04 | 南京信息工程大学 | Device for measuring terrestrial magnetism horizontal component |
| CN105549102B (en) * | 2016-02-03 | 2018-07-10 | 南京信息工程大学 | Geomagnetism horizontal component dynamic monitoring device |
| CN105548918B (en) * | 2016-02-03 | 2020-01-14 | 南京信息工程大学 | Measure earth magnetism horizontal component's device |
| CN107390277A (en) * | 2017-07-19 | 2017-11-24 | 中国地震局地球物理研究所 | A kind of absolute earth magnetism observation procedure of high-precision automatic |
| CN110146833A (en) * | 2019-05-30 | 2019-08-20 | 核工业理化工程研究院 | Magnetic steel component measurement method based on LABVIEW |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |