CN103791803A - AC differential voltage device type linear displacement sensor - Google Patents
AC differential voltage device type linear displacement sensor Download PDFInfo
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- CN103791803A CN103791803A CN201210419079.2A CN201210419079A CN103791803A CN 103791803 A CN103791803 A CN 103791803A CN 201210419079 A CN201210419079 A CN 201210419079A CN 103791803 A CN103791803 A CN 103791803A
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- linear displacement
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Abstract
The invention discloses an AC differential voltage device type linear displacement sensor comprising a shell and a coil bobbin which is arranged in the shell. A primary coil is wound on the coil bobbin. A first secondary coil is wound on the left half part of the primary coil, and a second secondary coil is wound on the right half part of the primary coil. Winding directions of the first secondary coil and the second secondary coil are opposite. The middle part of the coil bobbin is provided with a through hole extending along a central axis of the coil bobbin. The through hole is internally provided with a rod-shaped iron core capable of moving leftward and rightward in the through hole. The shell is provided with wire holes used for stretching out of a lead-out wire of the primary coil, the lead-out wire of the first secondary coil and the lead-out wire of the second secondary coil. The linear displacement sensor can normally work in an environment of higher impact and shock so that the linear displacement sensor is suitable for application in special devices like vehicles, ships, airplanes, etc.
Description
Technical field
The present invention relates to a kind of displacement transducer, particularly relate to a kind of differential voltage device formula linear displacement transducer that exchanges.
Background technology
Along with the development of shipping vehicle mine automation equipment, market increases day by day to the demand sensor of high reliability under harsh and unforgiving environments.The requirement that the linear displacement transducer of AC transformer principle is worked under harsh and unforgiving environments promotes gradually, need this AC transformer formula linear displacement transducer in compared with HI high impact vibration environment, normally to work, can normally work at subzero 55 degrees Celsius to 100 degrees Celsius above freezing.Sensor mechanical motion is without friction, and the continuous working life-span is more than 2 years.Be suitable for the use of the specific installations such as vehicle, boats and ships, aircraft, have the feature of high reliability in harsh and unforgiving environments.How developing the interchange differential voltage device formula linear displacement transducer with above-mentioned characteristic is various equivalent modifications technical matters urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, a kind of differential voltage device formula linear displacement transducer that exchanges is provided.This linear displacement transducer can normally be worked in compared with HI high impact vibration environment, be applicable to the use of the specific installations such as vehicle, boats and ships, aircraft, and it is simple in structure, easy to use, production cost is low, is convenient to promote the use of.
For achieving the above object, the technical solution used in the present invention is: exchange differential voltage device formula linear displacement transducer, it is characterized in that: comprise shell and coil rack is in the enclosure set, on described coil rack, be wound with primary coil, in the left-half of described primary coil, be wound with secondary coil one, on the right half part of described primary coil, be wound with secondary coil two, the coiling opposite direction of described secondary coil one and secondary coil two, the middle part of described coil rack is provided with the through hole extending along coil rack central axis, in described through hole, be provided with the rod core that can move left and right in through hole, described shell is provided with for primary coil extension line, the line hole that secondary coil one extension line and secondary coil two extension lines stretch out, the two ends of described shell are provided with block, the middle part of described coil rack is provided with the baffle plate one for separating secondary coil one and secondary coil two, the two ends of described coil rack are provided with baffle plate two.
Above-mentioned interchange differential voltage device formula linear displacement transducer, is characterized in that: between described shell and secondary coil one, between described shell and secondary coil two and be provided with filling agent between block and baffle plate two.
Above-mentioned interchange differential voltage device formula linear displacement transducer, is characterized in that: in described line hole, be provided with the cable cover for wrapping up primary coil extension line, secondary coil one extension line and secondary coil two extension lines.
The present invention compared with prior art has the following advantages:
1, of the present invention simple in structure, rationally novel in design, be easy to install.
2, mechanical motion of the present invention is without friction, and the continuous working life-span, serviceable life was longer more than 2 years.
3, of the present invention to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the present invention is simple in structure, rationally novel in design, functional reliability is high, and long service life can normally be worked in compared with HI high impact vibration environment, can normally work at subzero 55 degrees Celsius to 100 degrees Celsius above freezing, be applicable to the use of the specific installations such as vehicle, boats and ships, aircraft.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Description of reference numerals:
1-shell; 2-secondary coil one; 3-filling agent;
4-baffle plate one; 5-secondary coil two; 6-baffle plate two;
7-block; 8-coil rack; 8-1-through hole;
9-cable cover; 10-rod core; 11-primary coil.
Embodiment
One as shown in Figure 1 exchanges differential voltage device formula linear displacement transducer, comprise shell 1 and be arranged on the coil rack 8 in shell 1, on described coil rack 8, be wound with primary coil 11, in the left-half of described primary coil 11, be wound with secondary coil 1, on the right half part of described primary coil 11, be wound with secondary coil 25, the coiling opposite direction of described secondary coil 1 and secondary coil 25, the middle part of described coil rack 8 is provided with the through hole 8-1 extending along coil rack 8 central axis, in described through hole 8-1, be provided with the rod core 10 that can move left and right in through hole 8-1, described shell 1 is provided with for primary coil 11 extension lines, the line hole that secondary coil one 2 extension lines and secondary coil 25 extension lines stretch out.
As shown in Figure 1, the two ends of described shell 1 are provided with block 7.The middle part of described coil rack 8 is provided with the baffle plate 1 for separating secondary coil 1 and secondary coil 25, and the two ends of described coil rack 8 are provided with baffle plate 26.Between described shell 1 and secondary coil 1, between described shell 1 and secondary coil 25 and between block 7 and baffle plate 26, be provided with filling glue 3.In described line hole, be provided with the cable cover 9 for wrapping up primary coil 11 extension lines, secondary coil one 2 extension lines and secondary coil 25 extension lines.
This AC transformer formula linear displacement transducer is realized the function of linear position sensing with transformer principle.It is mainly by primary coil 11, secondary coil 1, secondary coil 25, rod core 10, coil rack 8, shell 1, filling agent 3 compositions such as grade.The winding direction of secondary coil 1 and secondary coil 25 is contrary, and primary coil 11 and secondary coil 1 and secondary coil 25 are regular to be wrapped on coil rack 8.In coil rack 8, there is a rod core can move freely 10.In the time that rod core 10 mediates, the induction electromotive force that secondary coil 1 and secondary coil 25 produce equates, because secondary coil 1 and secondary coil 25 are cascaded, so total output voltage of secondary coil 1 and secondary coil 25 is zero; In the time that rod core 10 moves and departs from center in through hole 8-1, not etc., secondary coil does not have total voltage output to the induction electromotive force that secondary coil 1 and secondary coil 25 produces, and its voltage swing depends on the size of rod core 10 displacements.Distribute and be wound around primary coil and two secondary coils according to accurate computational analysis science, realize secondary coil output differential voltage value and be linear change with inner rod core 10 shift lengths.User can calculate according to the differential voltage value of secondary coil output the shift length of rod core 10.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification, change and equivalent structure transformation of above embodiment being done according to the technology of the present invention essence, all still belongs in the protection domain of technical solution of the present invention.
Claims (3)
1. exchange differential voltage device formula linear displacement transducer, it is characterized in that: comprise shell (1) and be arranged on the coil rack (8) in shell (1), on described coil rack (8), be wound with primary coil (11), in the left-half of described primary coil (11), be wound with secondary coil one (2), on the right half part of described primary coil (11), be wound with secondary coil two (5), the coiling opposite direction of described secondary coil one (2) and secondary coil two (5), the middle part of described coil rack (8) is provided with the through hole (8-1) extending along coil rack (8) central axis, in described through hole (8-1), be provided with the rod core (10) that can move left and right in through hole (8-1), described shell (1) is provided with for primary coil (11) extension line, the line hole that secondary coil one (2) extension line and secondary coil two (5) extension lines stretch out, the two ends of described shell (1) are provided with block (7), the middle part of described coil rack (8) is provided with the baffle plate one (4) for separating secondary coil one (2) and secondary coil two (5), the two ends of described coil rack (8) are provided with baffle plate two (6).
2. interchange differential voltage device formula linear displacement transducer according to claim 1, is characterized in that: between described shell (1) and secondary coil one (2), be provided with filling agent (3) between described shell (1) and secondary coil two (5) and between block (7) and baffle plate two (6).
3. interchange differential voltage device formula linear displacement transducer according to claim 1, is characterized in that: in described line hole, be provided with the cable cover (9) for wrapping up primary coil (11) extension line, secondary coil one (2) extension line and secondary coil two (5) extension lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210419079.2A CN103791803A (en) | 2012-10-26 | 2012-10-26 | AC differential voltage device type linear displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210419079.2A CN103791803A (en) | 2012-10-26 | 2012-10-26 | AC differential voltage device type linear displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103791803A true CN103791803A (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210419079.2A Pending CN103791803A (en) | 2012-10-26 | 2012-10-26 | AC differential voltage device type linear displacement sensor |
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| CN (1) | CN103791803A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286738A (en) * | 2016-08-29 | 2017-01-04 | 北京机械设备研究所 | A kind of ball screw assembly, |
| CN108072315A (en) * | 2017-12-20 | 2018-05-25 | 中国航发贵州红林航空动力控制科技有限公司 | Differential voltage device formula linear movement pick-up |
-
2012
- 2012-10-26 CN CN201210419079.2A patent/CN103791803A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286738A (en) * | 2016-08-29 | 2017-01-04 | 北京机械设备研究所 | A kind of ball screw assembly, |
| CN108072315A (en) * | 2017-12-20 | 2018-05-25 | 中国航发贵州红林航空动力控制科技有限公司 | Differential voltage device formula linear movement pick-up |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140514 |