CN202350805U - Novel differential transducer - Google Patents
Novel differential transducer Download PDFInfo
- Publication number
- CN202350805U CN202350805U CN2011204941241U CN201120494124U CN202350805U CN 202350805 U CN202350805 U CN 202350805U CN 2011204941241 U CN2011204941241 U CN 2011204941241U CN 201120494124 U CN201120494124 U CN 201120494124U CN 202350805 U CN202350805 U CN 202350805U
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- CN
- China
- Prior art keywords
- novel differential
- inductance
- measuring staff
- telefault
- connector
- Prior art date
- 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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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model discloses a novel differential transducer comprising an inductance measuring head (101), a measuring rod (103), a steel ball guide rail (104), a sealing ring (102), an anti-rotating pin (105), a spring (106), an inductance coil (107), an armature (108), a magnetic core (109) and a connector (110), wherein the inductance measuring head (101) is positioned at the right end of the measuring rod (103), and the steel ball guide rail (104), the sealing ring (102), the anti-rotating pin (105), the spring (106), the inductance coil (107), the armature (108), the magnetic core (109) and the connector (110) are positioned on the measuring rod (103). The novel differential transducer has the advantages that the structure is simple, the appearance is small and exquisite, the sensitivity is high, the processing is convenient, the inductance of a coil is large, the antijamming capacity of the coil is strong, and the like.
Description
Technical field
The utility model discloses a kind of novel differential pick-up, relate in particular to a kind of high precision inductance sensor.Belong to electronic technology field.
Background technology
Traditional contact pilotage is welded on the measuring staff, does not adjust link, brings very big difficulty for assembling, processing and maintenance; Itself does not have potentiometer sensor, and amplification ratio can only raise at electronic box, so more all will readjust amplification ratio during emat sensor at every turn, tester has again increased the difficulty that the user uses instrument; Because sensor has only adopted an inductance, the track of the magnetic sheet motion on the measuring staff is a camber line, and the variation that makes inductance value is not linear, so sensor has spurious signal, the result is inaccurate when measuring highly polished workpiece; It is gold-plated patching part because the bad control of electrodeposited coating thickness, sensor with a period of time after, coating has just come off, and has caused the shortcoming of jitter.
Summary of the invention
The purpose of the utility model is to overcome the weak point that exists in the above-mentioned prior art, thereby can make the measurement degree of uneven surface more accurate, and inductance probe and measuring staff are easy for installation, and develop a kind of novel differential pick-up.
The utility model is to realize through following method:
A kind of novel differential pick-up comprises inductance probe 101, measuring staff 103, steel ball guide rail 104, O-ring seal 102, stop pin 105, spring 106, telefault 107, armature 108, magnetic core 109, connector 110; Said inductance probe 101 is positioned at the right-hand member of measuring staff 103; Said steel ball guide rail 104, O-ring seal 102, stop pin 105, spring 106, telefault 107, armature 108, magnetic core 109, connector 110 are positioned on the measuring staff 103.
Said inductance probe 101 is threaded with measuring staff 103 usefulness.Can adjust the upper-lower position of inductance probe 101, reduce the difficulty of assembling and maintenance.Its inductance probe 101 contacts with measured surface; When sensor when at the uniform velocity moving horizontally; The peak valley of measured surface profile rises and falls and forces contact pilotage to move up and down; This motion makes synchronous the moving up and down of magnetic core through fulcrum, thereby the inductance value of two difference induction coils that are enclosed in the magnetic core outside is changed.Inductance value is given subsequent process circuit through exporting electric signal after relevant measuring bridge, prime amplifier and the rectifier.On the body of sensor, increased potentiometer, can adjust amplification ratio within the specific limits easily, made sensor that good interchangeability arranged.
Said inductance probe 101 also comprises top guide and contact pilotage.
103 armfuls of said measuring staffs are on steel ball guide rail 104.
Said O-ring seal 102 is positioned at the junction of inductance probe 101 and measuring staff 103.
Said measuring staff 103 upper ends are fixed with armature 108.
Said telefault 107 is arranged in cylindrical shape magnetic core 109.
Said telefault 107 has more than 1 or 1.
Said telefault 107 has 2.Respectively used an inductance on the both sides of hinge, when stylus movement, it is opposite that the inductance value of two inductance changes, and has so just overcome linear bad shortcoming.
Said connector 110 connects metering circuit; Said connector 110 is three pins, three hole connectors.Thereby it is undistorted to have guaranteed that signal transmits, and has also guaranteed the sensor accurate positioning.
The utility model is a kind of novel differential inductor sensor; During design based on meet the demands, simple in structure, profile is small and exquisite, carry and online thought easily; Should guarantee that coil has enough inductance values and higher quality factor, also will guarantee necessary physical strength.And has a good amplitude versus frequency characte.And on the basis of the precision factor of analyzing influence inductance type transducer metering circuit; Proposition utilizes the crystal oscillator of frequency stabilization to be used as the signal source of pumping signal; Circuit replaces traditional phase frequency detection and simulation output interface with peak value sampling and Direct Digital formula output interface, drives the accuracy of detection that measure such as load improves inductance sensor with the triode power amplification circuit.
The beneficial effect of the utility model is: 1. possess enough inductance values; 2. have higher quality factor; 3. guarantee necessary physical strength; 4. good amplitude versus frequency characte; 5. fulcrum should be the pivot structure of thimble-type; 6. highly sensitive; 7. easy to process; 8. antijamming capability is strong.
Description of drawings
Fig. 1 is a differential pick-up inner structure synoptic diagram
Embodiment
Further describe below in conjunction with 1 pair of the utility model of accompanying drawing:
A kind of novel differential pick-up, it comprises inductance probe (101), measuring staff (103), steel ball guide rail (104), O-ring seal (102), stop pin (105), spring (106), telefault (107), armature (108), magnetic core (109), connector (110); Said inductance probe (101) is positioned at the right-hand member of measuring staff (103); Said steel ball guide rail (104), O-ring seal (102), stop pin (105), spring (106), telefault (107), armature (108), magnetic core (109), connector (110) are positioned on the measuring staff (103).
Said inductance probe (101) and measuring staff (103) are with being threaded.
Said inductance probe (101) also comprises top guide and contact pilotage.
Said measuring staff (103) is embraced on steel ball guide rail (104).
Said O-ring seal (102) is positioned at the junction of inductance probe (101) and measuring staff (103).
Said measuring staff (103) upper end is fixed with armature (108).
Said telefault (107) is arranged in cylindrical shape magnetic core (109).
Said telefault (107) has more than 1 or 1.
Said telefault (107) has 2.
Said connector (110) connects metering circuit; Said connector (110) is three pins, three hole connectors.Said inductance probe (101) is screwed on the measuring staff (103) with screw, and measuring staff (103) can be gone up at steel ball guide rail (104) and move axially.Armature (108) is being fixed in measuring staff (103) upper end.Telefault (107) is placed in the cylindrical shape magnetic core (109), the differential use of two coils, and when moving on armature (108) zero crossing, last winding inductance quantity increases, and the lower coil inductance value reduces.The output of two coils is connected to metering circuit by connector (110).During measurement; Inductance probe (101) contacts with testee, and when testee had micro-displacement, inductance probe (101) drove armature (108) through measuring staff (103) and in telefault (107), moves; The inductance value of telefault (107) is changed, insert metering circuit through connector (110).The power that spring (106) produces guarantees that inductance probe (101) contacts with testee effectively.Stop pin (106) restriction measuring staff (103) rotates, and sealing shroud (102) prevents that dust from getting into sensor internal.
Claims (10)
1. novel differential pick-up; It is characterized in that, comprise inductance probe (101), measuring staff (103), steel ball guide rail (104), O-ring seal (102), stop pin (105), spring (106), telefault (107), armature (108), magnetic core (109), connector (110); Said inductance probe (101) is positioned at the right-hand member of measuring staff (103); Said steel ball guide rail (104), sealed picture (102), stop pin (105), spring (106), telefault (107), armature (108), magnetic core (109), connector (110) are positioned on the measuring staff (103).
2. a kind of novel differential pick-up according to claim 1 is characterized in that, said inductance probe (101) and measuring staff (103) are with being threaded.
3. a kind of novel differential pick-up according to claim 1 is characterized in that said inductance probe (101) also comprises top guide and contact pilotage.
4. a kind of novel differential pick-up according to claim 1 is characterized in that, said measuring staff (103) is embraced on steel ball guide rail (104).
5. a kind of novel differential pick-up according to claim 1 is characterized in that, said O-ring seal (102) is positioned at the junction of inductance probe (101) and measuring staff (103).
6. a kind of novel differential pick-up according to claim 1 is characterized in that, said measuring staff (103) upper end is fixed with armature (108).
7. a kind of novel differential pick-up according to claim 1 is characterized in that said telefault (107) is arranged in cylindrical shape magnetic core (109).
8. according to claim 1 or 7 each described a kind of novel differential pick-ups, it is characterized in that said telefault (107) has more than 1 or 1.
9. according to claim 1 or 7 each described a kind of novel differential pick-ups, it is characterized in that said telefault (107) has 2.
10. a kind of novel differential pick-up according to claim 1 is characterized in that, said connector (110) connects metering circuit; Said connector (110) is three pins, three hole connectors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204941241U CN202350805U (en) | 2011-12-02 | 2011-12-02 | Novel differential transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204941241U CN202350805U (en) | 2011-12-02 | 2011-12-02 | Novel differential transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350805U true CN202350805U (en) | 2012-07-25 |
Family
ID=46539803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204941241U Expired - Fee Related CN202350805U (en) | 2011-12-02 | 2011-12-02 | Novel differential transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350805U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090782A (en) * | 2013-02-01 | 2013-05-08 | 三门峡锐鑫测控量仪有限公司 | Wide-range inductance measuring head |
| CN104316006A (en) * | 2014-11-17 | 2015-01-28 | 成都四威高科技产业园有限公司 | Vibration wire displacement sensor |
| CN106076872A (en) * | 2016-06-24 | 2016-11-09 | 龙彦旭 | Bearing steel ball automatically measuring diameter screening installation |
| CN110361194A (en) * | 2019-08-07 | 2019-10-22 | 东北大学秦皇岛分校 | A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on inductance measurement |
-
2011
- 2011-12-02 CN CN2011204941241U patent/CN202350805U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090782A (en) * | 2013-02-01 | 2013-05-08 | 三门峡锐鑫测控量仪有限公司 | Wide-range inductance measuring head |
| CN104316006A (en) * | 2014-11-17 | 2015-01-28 | 成都四威高科技产业园有限公司 | Vibration wire displacement sensor |
| CN106076872A (en) * | 2016-06-24 | 2016-11-09 | 龙彦旭 | Bearing steel ball automatically measuring diameter screening installation |
| CN106076872B (en) * | 2016-06-24 | 2019-04-23 | 新昌县澄潭镇艺林机械厂 | Bearing steel ball automatically measuring diameter screening installation |
| CN110361194A (en) * | 2019-08-07 | 2019-10-22 | 东北大学秦皇岛分校 | A kind of on-line measuring device of the bush(ing) bearing abrasion loss based on inductance measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20141202 |
|
| EXPY | Termination of patent right or utility model |