CN204203259U - A kind of magneto-electric tachogenerator and performance testing device thereof - Google Patents
A kind of magneto-electric tachogenerator and performance testing device thereof Download PDFInfo
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- CN204203259U CN204203259U CN201420696682.XU CN201420696682U CN204203259U CN 204203259 U CN204203259 U CN 204203259U CN 201420696682 U CN201420696682 U CN 201420696682U CN 204203259 U CN204203259 U CN 204203259U
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- magneto
- tachogenerator
- electric
- electric tachogenerator
- sensor
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Abstract
The utility model discloses a kind of magneto-electric tachogenerator, relate to base, it is characterized in that, described base is provided with sensor outer housing, in described sensor outer housing, one end is provided with T-shaped skeleton, and the boss of described T-shaped skeleton is placed with permanent magnet, and insulating pad is fixed on T-shaped skeleton surrounding, the boss both sides of described T-shaped skeleton are wound with two coils in left and right respectively, and described coil is drawn by lead-in wire after adopting series system to connect.The utility model adopts bipolarity series connection to export, and output amplitude is high, individual features good, by inner filtering circuit, improves the antijamming capability of sensor.
Description
Technical field
The utility model belongs to sensor technical field, particularly relates to a kind of magneto-electric tachogenerator and performance testing device thereof.
Background technology
Magnetoelectric sensor utilizes electromagnetic induction principle, by the sensor that input motion velocity transformation becomes induced potential to export.It does not need accessory power supply, and just the mechanical energy of measurand can be converted to the electric signal being easy to measure, be a kind of passive sensor.
Existing magnetoelectric sensor, coil many employings monopolar type exports, coil winding on the permanent magnet, manufacture craft is lower, to the poor anti jamming capability of on-the-spot rugged surroundings and electromagnetic field, under vibrations or impact condition, its inner structure is fragile, and traditional magnetoelectric sensor many employings Aviation Connector is used for being connected of sensor and outside lead, do not possess waterproof, the function such as grease proofing, moistureproof.
Utility model content
For the problems referred to above, the utility model provides a kind of magneto-electric tachogenerator, and adopt bipolarity series connection to export, output amplitude is high, individual features good, by inner filtering circuit, improves the antijamming capability of sensor.
In order to solve the problem, the technical scheme that the utility model provides is: a kind of magneto-electric tachogenerator, comprise base, it is characterized in that, described base is provided with sensor outer housing, and in described sensor outer housing, one end is provided with T-shaped skeleton, the boss of described T-shaped skeleton is placed with permanent magnet, insulating pad is fixed on T-shaped skeleton surrounding, and the boss both sides of described T-shaped skeleton are wound with two coils in left and right respectively, and described coil is drawn by lead-in wire after adopting series system to connect.
Further, described sensor outer housing inside is filled with flexible formula materials.
Preferably, the lead-in wire that described magneto-electric tachogenerator coil exports is connected to filtering circuit.
Further, described sensor outer housing rear portion is provided with a fairlead, and described filtering circuit output lead is drawn from fairlead.
Preferably, described base both sides are also provided with fixing screw hole, the mode by hammering into gib screw in fixing screw hole between described base with sensor outer housing top cover is connected.
Preferably, described fixing screw hole is 2.
Further, described base opposite side is also provided with sensor mounting hole.
The utility model also proposed a kind of magneto-electric tachogenerator performance testing device, relate to magneto-electric tachogenerator, comprise intelligent speed-regulating whirligig, working sensor platform, described intelligent speed-regulating whirligig is arranged on working sensor platform, described intelligent speed-regulating whirligig is made up of rotating disc, stepper motor, controller, human-computer interaction device, mechanical cover, and described magneto-electric tachogenerator to be positioned over below rotating disc and to be fixed on working sensor platform.
Preferably, described rotating disc is made up of some cutting blades, and rotating speed is adjustable within the scope of 0-30r/s.
Preferably, the distance of the magnetic force line cutting plate of described magneto-electric tachogenerator shell upper surface and intelligent speed-regulating whirligig is less than 40mm, and sensor output connects signal tester and carries out performance test.
Compared with prior art, the beneficial effects of the utility model are: 1, owing to adopting bipolarity series connection to export, output amplitude is high, and individual features is good.2, inside has filtering circuit, and antijamming capability is strong; 3, inside stuffing adopts corresponding flexible formula Design, makes sensor have good heat sinking function, protection against the tide simultaneously, waterproof, grease proofing, resistance to dirt, the vibration of anti-intense impact.
Accompanying drawing explanation
Fig. 1 is the cut-open view of the utility model magneto-electric tachogenerator,
Fig. 2 is the structural representation of the utility model magneto-electric tachogenerator and performance testing device.
In figure: 1, closure head, 2, permanent magnet, 3, T-shaped skeleton, 4, insulating pad, 5, coil, 6, flexible formula materials, 7, gib screw, 8, fixing screw hole, 9, base, 10, sensor mounting hole, 11, go between, 12, intelligent speed-regulating whirligig, 13, rotating disc, 14, magneto-electric tachogenerator, 15, working sensor platform.
Embodiment
Below the utility model is described further:
As shown in Figure 1: a kind of magneto-electric tachogenerator, relate to base 9, base 9 is provided with sensor outer housing, in sensor outer housing, one end is provided with T-shaped skeleton 3, the boss of T-shaped skeleton 3 is placed with permanent magnet 2, insulating pad 4 is fixed on T-shaped skeleton 3 surrounding, and the boss both sides of T-shaped skeleton 3 are wound with two coils 5 in left and right respectively, and coil 5 is drawn by lead-in wire 11 after adopting series system to connect.
Further, sensor outer housing inside is filled with flexible formula materials 6.
Preferably, the lead-in wire 11 that magneto-electric tachogenerator coil 5 exports is connected to filtering circuit.
Further, sensor outer housing rear portion is provided with a fairlead, and filtering circuit output lead is drawn from fairlead.
Preferably, side is also provided with fixing screw hole 8 to base 9, and the mode by hammering into gib screw 7 in fixing screw hole 8 between base 9 with sensor outer housing top cover is connected.
Preferably, fixing screw hole 8 is 2.
Further, base 9 opposite side is also provided with sensor mounting hole 10.
A kind of magneto-electric tachogenerator performance testing device as shown in Figure 2, relate to magneto-electric tachogenerator 14, comprise intelligent speed-regulating whirligig 12, working sensor platform 15, intelligent speed-regulating whirligig 12 is arranged on working sensor platform 15, intelligent speed-regulating whirligig 12 is made up of rotating disc 13, stepper motor, controller, human-computer interaction device, mechanical cover, and magneto-electric tachogenerator 14 to be positioned over below rotating disc 13 and to be fixed on working sensor platform 15.
Preferably, rotating disc 13 is made up of some cutting blades, and rotating speed is adjustable within the scope of 0-30r/s.
Preferably, the distance of the magnetic force line cutting plate of magneto-electric tachogenerator shell upper surface and intelligent speed-regulating whirligig is less than 40mm, and sensor output connects signal tester and carries out performance test.
Principle of work of the present utility model: in this magnetoelectric sensor, permanent magnet produces magnetic field, when tested metal works or metal object are above sensor, sensor magnetic circuit reluctance changes, cause flux change, thus induced potential is produced in coil: in e=Nd Φ/dt formula, e is electromotive force, N is coil turn, and Φ is magnetic flux, and d Φ/dt is flux change rate.Flux change rate is higher, and the induced potential of generation is larger.Output frequency is directly proportional to flux change rate, and when flux change rate increases further, magnetic circuit loss increases, and output potential trend is saturated, and when rotating speed exceedes certain value, magnetic circuit loss aggravates, and induction electromotive force reduces.Owing to adopting left and right twin coil, two coils produce electromotive force simultaneously, and according to cascade connection, sensor is exported to be increased greatly, improves output amplitude and the sensitivity of sensor.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (8)
1. a magneto-electric tachogenerator, comprise base, it is characterized in that, described base is provided with sensor outer housing, in described sensor outer housing, one end is provided with T-shaped skeleton, and the boss of described T-shaped skeleton is placed with permanent magnet, and insulating pad is fixed on T-shaped skeleton surrounding, the boss both sides of described T-shaped skeleton are wound with two coils in left and right respectively, and described coil is drawn by lead-in wire after adopting series system to connect.
2. magneto-electric tachogenerator according to claim 1, is characterized in that, described sensor outer housing inside is filled with flexible formula materials.
3. magneto-electric tachogenerator according to claim 1, is characterized in that, the lead-in wire that described magneto-electric tachogenerator coil exports is connected to filtering circuit.
4. magneto-electric tachogenerator according to claim 3, is characterized in that, described sensor outer housing rear portion is provided with a fairlead, and described filtering circuit output lead is drawn from fairlead.
5. magneto-electric tachogenerator according to claim 1, is characterized in that, described base both sides are also provided with fixing screw hole, and the mode by hammering into gib screw in fixing screw hole between described base with sensor outer housing top cover is connected.
6. a magneto-electric tachogenerator performance testing device, relate to magneto-electric tachogenerator, it is characterized in that, comprise intelligent speed-regulating whirligig, working sensor platform, described intelligent speed-regulating whirligig is arranged on working sensor platform, described intelligent speed-regulating whirligig is made up of rotating disc, stepper motor, controller, human-computer interaction device, mechanical cover, and described magneto-electric tachogenerator to be positioned over below rotating disc and to be fixed on working sensor platform.
7. magneto-electric tachogenerator performance testing device according to claim 6, it is characterized in that, described rotating disc is made up of some cutting blades, and rotating speed is adjustable within the scope of 0-30r/s.
8. magneto-electric tachogenerator performance testing device according to claim 7, it is characterized in that, the distance of the magnetic force line cutting plate of described magneto-electric tachogenerator shell upper surface and intelligent speed-regulating whirligig is less than 40mm, and sensor output connects signal tester and carries out performance test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696682.XU CN204203259U (en) | 2014-11-19 | 2014-11-19 | A kind of magneto-electric tachogenerator and performance testing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696682.XU CN204203259U (en) | 2014-11-19 | 2014-11-19 | A kind of magneto-electric tachogenerator and performance testing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204203259U true CN204203259U (en) | 2015-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420696682.XU Expired - Fee Related CN204203259U (en) | 2014-11-19 | 2014-11-19 | A kind of magneto-electric tachogenerator and performance testing device thereof |
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| Country | Link |
|---|---|
| CN (1) | CN204203259U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120846A (en) * | 2016-11-30 | 2018-06-05 | 财团法人工业技术研究院 | Rotation sensing device and rotation sensing method |
| CN111830287A (en) * | 2020-07-23 | 2020-10-27 | 中国航空工业集团公司上海航空测控技术研究所 | Magnetoelectric revolution speed transducer verifying device |
-
2014
- 2014-11-19 CN CN201420696682.XU patent/CN204203259U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120846A (en) * | 2016-11-30 | 2018-06-05 | 财团法人工业技术研究院 | Rotation sensing device and rotation sensing method |
| CN111830287A (en) * | 2020-07-23 | 2020-10-27 | 中国航空工业集团公司上海航空测控技术研究所 | Magnetoelectric revolution speed transducer verifying device |
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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: 20150311 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |