CN1258006A - Inductance-type pulse sampling method for electric energy and its electric energy meter - Google Patents
Inductance-type pulse sampling method for electric energy and its electric energy meter Download PDFInfo
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- CN1258006A CN1258006A CN 98126473 CN98126473A CN1258006A CN 1258006 A CN1258006 A CN 1258006A CN 98126473 CN98126473 CN 98126473 CN 98126473 A CN98126473 A CN 98126473A CN 1258006 A CN1258006 A CN 1258006A
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- electric energy
- pulse
- inductor
- motion block
- energy meter
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Abstract
An inductance-type pulse sampling method for electric energy and its electric energy meter feature that when current flows through coil, a magnetic field is generated around the inductor composed of coil and magnetic conductor, and when a moving block on the rotary part of inductance-type electric energy meter is at different positions in said magnetic field, it can change the magnetic force line shape and the value of inductor, so changing the parameter of inductor as an element in pulse generator. As a result, the number of electric pulses from pulse generator is proportional to the electric energy. Its advantages are long service life and low cost.
Description
The present invention relates to the electrical energy pulse method of sampling and electric energy meter, relate in particular to the inductance type electrical energy pulse method of sampling and electric energy meter thereof.
Electric energy meter (electrical energy pulse sampling) generally adopts photoelectric sensor or Hall sensor both at home and abroad at present.Photoelectric sensor has following shortcoming: 1. infrared transmitting tube is because of being energy dissipation device, and the power valve emissive power works long hours and can decay, and is difficult to accomplish the long-life; 2. infrared sensor is subject to ambient light influence reduction reliability; 3. the infrared receiving tube sensitivity that works long hours descends, and is difficult to equally accomplish the long-life.Hall sensor has following shortcoming: 1. because of electric energy meter is to adopt magnetic induction principle, Hall sensor itself needs a magnet, and it will destroy the original magnetic balance of electric energy meter, makes electrical energy meter accuracy can not get guaranteeing; 2. can not do too greatly because of magnet, cause the assembly precision requirement very high.
The purpose of this invention is to provide a kind of long working life, manufacturability is strong, the inductance type electrical energy pulse method of sampling and the electric energy meter thereof that are easy to produce in batches.
The present invention takes following measures in order to achieve the above object: the inductance type electrical energy pulse method of sampling is: when electric current passes through coil, just form magnetic field near the inductor that constitutes by coil and magnetic conductor, and when being arranged on motion block on the induction type electric energy meter rotatable parts and being in the diverse location in magnetic field, the magnetic line of force shape in above-mentioned magnetic field is changed, and cause the variation of inductor current value, thereby changed the parameter of inductor, made it to produce the electric pulse that is directly proportional with electricity meter degree as the pulse producer electronic circuit of an element.
Inductance type pulse electric energy table comprises register, rotating shaft, disk, and it also has motion block, is provided with pulse producer in the motion block corresponding position.Motion block is the condiment on the rotatable parts in the electric energy meter.Rotatable parts comprise rotating shaft, disk, register gear and character wheel.
Advantage of the present invention is:
1. long working life
The mission life of photo-electric impulse transfer element is decided by luminotron and photoelectric tube, be difficult to above 10 years by the mission life that limits this two device of cost, the mission life of magneto-electric impulse transfer element is decided by Hall element, and its mission life of same reason was difficult to above 20 years.
And under identical cost, the inductance type inverting element only is made up of common metal and magnetic conductor, and its electromagnetic property will be stablized manyly relatively, is easy to realize surpassing the mission life in 30 years.
2. cost is lower
Inductance type impulse transfer element is only formed semiconductor devices such as not needing the photoelectric tube Hall element by coil and magnetic conductor and motion block; And its motion block can be filled the post of by the condiment (sheet metal, magnetic inductive block etc.) on the rotatable parts (gear of disk, rotating shaft or register, character wheel) of electric energy meter.Part that no price is higher and circuit.Therefore, this photo-electric or the lower cost of magneto-electric pulses switch part are arranged under identical mission life.
3. manufacturability is strong, is easy to produce in batches
The motion block of inductance type pulses switch element and the action of a magnetic field of inductor distance just can not produce interference with the measurement or the damping magnetic field of Ferrari induction type electric energy meter mutually than length and as long as design is proper, so the requirement of other installation site is low far beyond magneto-electric impulse transfer element; And the magnetic field of itself is to have an effect in the space that limits, so it is not subjected to the interference of the light or the electromagnetic field of external environment, only needs simple magnetic shielding, even do not need shielding.The characteristics of this installation requirement and shielding requirements broad make it than current two class impulse transfer elements commonly used much better than manufacturability be arranged.
4. can in very wide scope, design the scale-up factor of angular displacement with the output pulse of electric energy meter rotor.
The motion block of electro-induction impulse transfer element is by being can show disk and directly fill the post of the time, utilize the same design of disc-shape that disk is rotated a circle and just can export several pulses, and motion block can pulses occur in several kilowatts of sides when investing on register gear or the character wheel, so wide scale-up factor is that other two kinds of impulse transfer elements are difficult to realize, and inductance type impulse transfer element can be done corresponding design according to user's different request for utilizations.
Elaborate below in conjunction with accompanying drawing:
Fig. 1 is an inductance type pulse electric energy matrix section structural representation;
Fig. 2 is the pulse producer frame principle figure.
Inductance type pulse electric energy table comprises register, rotating shaft 3, disk 1 etc.It also has motion block 2, is provided with pulse producer 4 in the motion block corresponding position.Motion block is the condiment on the rotatable parts in the electric energy meter, and rotatable parts comprise rotating shaft, disk, register gear and character wheel.
Pulse producer behind demodulator circuit, triggers monostable circuit for the oscillator signal that the oscillatory circuit that is embedded in the magnetic conductor by coil as an element sends, and obtains a signal pulse, and this pulse signal is through driving amplifying circuit output.
Claims (3)
1. inductance type electrical energy pulse method of sampling, when it is characterized in that electric current passes through coil, just form magnetic field near the inductor that constitutes by coil and magnetic conductor, and when being arranged on motion block on the induction type electric energy meter rotatable parts and being in the diverse location in magnetic field, the magnetic line of force shape in above-mentioned magnetic field is changed, and cause the variation of inductor current value, thus changed the parameter of inductor as the pulse producer electronic circuit of an element, make it to produce the electric pulse that is directly proportional with electric energy.
One kind according to the method described above the design inductance type pulse electric energy table, it comprises register, rotating shaft (3) disk (1), it is characterized in that it has motion block (2), be provided with pulse producer (4) in the motion block corresponding position, said motion block is the condiment on the rotatable parts in the electric energy meter, and rotatable parts comprise rotating shaft, disk, register gear and character wheel.
3. a kind of inductance type pulse electric energy table of design according to the method described above according to claim 2, it is characterized in that the oscillator signal that said pulse producer sends for the oscillatory circuit that is embedded in the magnetic conductor by coil as an element, behind demodulator circuit, trigger monostable circuit, obtain a signal pulse, this pulse signal is through driving amplifying circuit output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98126473 CN1258006A (en) | 1998-12-24 | 1998-12-24 | Inductance-type pulse sampling method for electric energy and its electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98126473 CN1258006A (en) | 1998-12-24 | 1998-12-24 | Inductance-type pulse sampling method for electric energy and its electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1258006A true CN1258006A (en) | 2000-06-28 |
Family
ID=5229689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98126473 Withdrawn CN1258006A (en) | 1998-12-24 | 1998-12-24 | Inductance-type pulse sampling method for electric energy and its electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1258006A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713169A (en) * | 2013-12-23 | 2014-04-09 | 上海金陵智能电表有限公司 | Induction type electric energy meter |
| CN103839397A (en) * | 2014-03-07 | 2014-06-04 | 四川恒芯科技有限公司 | Data acquirer based on inductance type sensing technology and data acquisition method |
-
1998
- 1998-12-24 CN CN 98126473 patent/CN1258006A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103713169A (en) * | 2013-12-23 | 2014-04-09 | 上海金陵智能电表有限公司 | Induction type electric energy meter |
| CN103713169B (en) * | 2013-12-23 | 2016-09-21 | 上海金陵智能电表有限公司 | A kind of induction type electric energy meter |
| CN103839397A (en) * | 2014-03-07 | 2014-06-04 | 四川恒芯科技有限公司 | Data acquirer based on inductance type sensing technology and data acquisition method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |