CN2781366Y

CN2781366Y - Magnetomotive oxygen analyser with self-feedback damping buffer stablizer

Info

Publication number: CN2781366Y
Application number: CN 200520015780
Authority: CN
Inventors: 张国生; 许燕; 刘德功; 邱安平; 张振辉
Original assignee: Beijing Institute of Graphic Communication
Current assignee: Beijing Institute of Graphic Communication
Priority date: 2005-04-28
Filing date: 2005-04-28
Publication date: 2006-05-17
Anticipated expiration: 2015-04-28

Abstract

The utility model relates to a magnetomotive oxygen analyzer with a self-feedback damping buffer stabilizer, which belongs to the field of the gas content analyzers. The utility model mainly solves the problem that a swinging dumbbell ball (3) can not be stopped quickly in a measuring chamber (1) of a common magnetomotive oxygen analyzer. A magnetic pole (2), the dumbbell ball (3) which is fixed on the magnetic pole (2), a reflecting mirror (4), and a suspension wire (5), a transparent seal housing (13), gas ports (14), (15), a matched illuminating source (7), and subsequent matching accessories of a photoelectric sensor and a display are arranged in the measuring chamber (1). The utility model is characterized in that a self-feedback damping wire (6) is fixed on the dumbbell ball (3) and is combined with the reflecting mirror (4) and the suspension wire (5) into a whole. The utility model has the advantages that the measuring chamber (1) is actually independent, and the length of the suspension wire (5) can not be changed by temperature change caused by a passing current; the utility model has simple structure, and the difficulty degree of making, installing and adjusting is lowered; the product assembling speed is increased greatly, and quick and accurate detection is ensured; the utility model is convenient to overhaul and maintain. The utility model is especially suitable for being used online.

Description

Magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement

Technical field

The utility model belongs to gas content analyser field, relates to a kind of magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement.

Background technology

Common oxygen analyzer has two kinds: a kind of be by zirconium dioxide on the interior outside of the pipe that sintered body under the condition of high temperature is made, a kind of gas-premeable porous matter electrode is set, and be maintained at about under 850 ℃ of high temperature, form the oxygen concentration difference battery, utilize the induction electromotive force of this battery to obtain the concentration of tested gas, but its working temperature is too high, and is all influential for the life-span of measurement and instrument.Another kind is to be different from the magnetic driven oxygen analyzer that the paramagnetic characteristic of other gas is made by oxygen, its advantage is, can under 0～50 ℃ of working environment, work, and precise structure, circuit is stable, highly sensitive, volume is little, in light weight, power consumption is few, durable in use, the structure of its key component measuring chamber: have magnetic pole and dumbbell ball fixed with each other (referring to be full of the dumbbell shaped ball that two spherical glass bodies of nitrogen constitute), catoptron and the suspension that has shock attenuation device concurrently, suspension is vertical, and can drive little mirror and dumbbell ball being fixed on the bottom surface of the property reversed together, measuring chamber also has turnover gas interface, when feeding oxygen-containing gas, the over paramagnetism of oxygen causes the variation of magnetic field intensity, thereby promote the dumbbell ball deflector and drive mirror deflection, the torsional moment of dumbbell ball is proportional to the paramagnetism of environmental gas, therefore the size of deflection angle is relevant with oxygen content, and the change in displacement signal of the flare of light source irradiation on catoptron imports follow-up accessory kit into through optoelectronic sensor, the change in displacement signal demonstrates the concrete data of oxygen content after acquisition process.Because suffered resistance was very little when the dumbbell ball rocked, therefore, can violent the rocking of the extraneous dumbbell ball that causes in little vibrations or measurement stop very soon, to exert an influence to measurement result, and cause error easily, the vibration damping stabilizing measures of taking in the prior art is to adopt the feedback damping coil to solve, suspension is direct as the lead that is connected into measuring chamber, the center section at suspension two ends is wound with the dumbbell ball and feeds back damping coil accordingly, make shock attenuation device, utilize the damping of energising tickler to solve vibrations and temperature compensation simultaneously, its weak point is: electric current by the time cause that easily the length of suspension changes with temperature, and with suspension directly as the lead that is connected into measuring chamber, therefore, install, debugging and be difficult to ensure the quality of products when safeguarding, the assembling yield rate is low, and the accuracy that detects of influence easily.

Summary of the invention

The technical matters that solves:

Adopt self-feedback damping coil damping stabilising arrangement, the interior dumbbell ball of measuring chamber that solves the magnetic driven oxygen analyzer acutely rocks the problem of stopping very soon, can overcome the deficiencies in the prior art, the self feed back loop construction is simple, make measuring chamber really independent, suspension length is difficult for changing with temperature, and has reduced the technology difficulty of manufacturing, install, debugging and overhauling, the assembling yield rate is very high, can guarantee the accuracy that detects.

The technical scheme that adopts:

Magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement, have magnetic pole 2 and dumbbell ball 3, catoptron 4, suspension 5 and feedback damping coil fixed with each other in the measuring chamber 1, the two ends of suspension 5 are fixed on the upper and lower bottom surface 12, gas import and

export

14 and 15 are housed on the transparent sealed cover 13, also have supporting light source 7 and optoelectronic sensor and the follow-up accessory kit that comprises display, it is characterized in that: the feedback damping coil is self-feedback damping coil 6 formulas and is fixed on the dumbbell ball 3.

Beneficial effect:

Magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement, self-feedback damping coil 6 simple in structure, having eliminated measuring chamber is connected with circuit external, make measuring chamber 1 real independent, the length of suspension 5 does not exist because of there being electric current to change by the temperature variation that causes, and reduced the technology difficulty of manufacturing, installing and debugging, improve the assembling yield rate greatly, can guarantee quick, the accuracy of detection, for whole instrument, be very beneficial for maintenance and maintenance, be adapted to online use especially.

Description of drawings:

Fig. 1, general structure are formed synoptic diagram ();

Fig. 2, individual pen formula or individual pen multiple field self-feedback damping coil 6 and assembling synoptic diagram, (A) individual pen formula, (B) individual pen multiple field;

Fig. 3, two circle formula or two circle multiple field self-feedback damping coil 6 and assembling synoptic diagram, (C) two circle formulas, (D) two circle multiple fields;

Fig. 4, general structure synoptic diagram (two);

Embodiment

Further explanation in detail in conjunction with the accompanying drawings;

The self-feedback damping coil is meant that electric current can only form the closed-loop path in coil self and the outside coil of output current.

The fixed position of self-feedback damping coil 6 must guarantee that its normal must not be vertical with the direction of the magnetic line of force of magnetic pole 2, must guarantee that simultaneously itself and dumbbell ball 3, catoptron 4 and suspension 5 make up when as a whole, and this whole barycenter must drop on the suspension 5.

So-called barycenter is meant the center of quality.

Self-feedback damping coil 6 is circle, ellipse, rectangle, prismatic, parallelogram or gear shape etc.

Self-feedback damping coil 6 is adhesively fixed on the dumbbell ball 3 after independently making again, perhaps directly is plated on the dumbbell ball 3 with plating Mo method.

As shown in Figure 2, self-feedback damping coil 6 is individual pen formula (A) or individual pen multiple field (B); So-called individual pen formula, two balls that are meant dumbbell ball 3 are jointly corresponding to same coil, and promptly suspension 5 passes self-feedback damping coil 6; So-called individual pen multiple field, two balls that are meant dumbbell ball 3 are jointly corresponding to a plurality of individual pens, be that suspension 5 passes whole self-feedback damping coils 6, individual pen multiple field coil is double-deck, three layers or four layers etc., the geometric configuration of each layer line circle and measure-alike or different, each layer line circle mutually insulated independence or mutual conduction formula link together.

As shown in Figure 3, self-feedback damping coil 6 is two circle formulas (C) or two circle multiple field (D); Two circle formulas of transferring are meant that two balls of dumbbell ball 3 correspond respectively to a coil, and promptly suspension 5 does not pass any one self-feedback damping coil 6 basically; So-called two circle multiple field, two balls that are meant dumbbell ball 3 correspond respectively to a plurality of self-feedback damping coils 6, two circle multiple field coils are double-deck, three layers or four layers etc., the geometric configuration of each layer line circle and measure-alike or different, and each layer line circle mutually insulated independence or mutual conduction formula link together.

As shown in Figure 1, optoelectronic sensor and follow-up accessory kit are as follows: optoelectronic sensor is a photoelectrical coupler 8, accessory kit is: the signals collecting driving interface 9 that links together with light source 7 and photoelectrical coupler 8, the signals collecting that links together with light source 7 and signals collecting driving interface 9 are amplified interface 10, and amplify the single-chip microcomputer 11 of the band display that interface 10 links together with light source 7 and signals collecting.

As shown in Figure 4, optoelectronic sensor and follow-up accessory kit are as follows: optoelectronic sensor is a silicon photocell 16, accessory kit is: the signals collecting amplifying circuit 17 that links together with light source 7 and silicon photocell 16, the temperature-compensation circuit 18 that links together with signals collecting amplifying circuit 17, and the terminating circuit 19 of band display.

Claims

1, magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement, have magnetic pole (2) and dumbbell ball (3) fixed with each other in the measuring chamber (1), catoptron (4), suspension (5) and feedback damping coil, the two ends of suspension (5) are fixed on, on the bottom surface (12), on the transparent sealed cover (13) gas being housed advances, outlet (14) and (15), also have supporting light source (7) and optoelectronic sensor and the follow-up accessory kit that comprises display, it is characterized in that: the feedback damping coil is self-feedback damping coil (6) formula and is fixed on the dumbbell ball (3).

2, the magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 1, it is characterized in that: the fixed position of self-feedback damping coil (6), must guarantee that its normal must not be vertical with the direction of the magnetic line of force of magnetic pole (2), must guarantee that simultaneously itself and dumbbell ball (3), catoptron (4) and suspension (5) make up when as a whole, this whole barycenter must drop on the suspension (5).

3, the magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 1 and 2, it is characterized in that: self-feedback damping coil (6) is adhesively fixed on the dumbbell ball (3) after independently making again, perhaps directly is plated on the dumbbell ball (3) with plating Mo method.

4, the magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 1 and 2, it is characterized in that: self feed back coil (6) is two circle formulas or two circle multiple field, two circle multiple field coils be double-deck, three layers or four layers, the geometric configuration of each layer line circle and measure-alike or different, each layer line circle mutually insulated independence or mutual conduction formula link together.

5, the magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 3, it is characterized in that: self feed back coil (6) is two circle formulas or two circle multiple field, two circle multiple field coils be double-deck, three layers or four layers, the geometric configuration of each layer line circle and measure-alike or different, each layer line circle mutually insulated independence or mutual conduction formula link together.

6, the magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 1 and 2, it is characterized in that: self feed back coil (6) is individual pen formula or individual pen multiple field, individual pen multiple field coil be double-deck, three layers or four layers, the geometric configuration of each layer line circle and measure-alike or different, each layer line circle mutually insulated independence or mutual conduction formula link together.

7, the magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 3, it is characterized in that: self feed back coil (6) is individual pen formula or individual pen multiple field, individual pen multiple field coil be double-deck, three layers or four layers, the geometric configuration of each layer line circle and measure-alike or different, each layer line circle mutually insulated independence or mutual conduction formula link together.

8, according to claim 1,2,5 or 7 described magnetic driven oxygen analyzers with self-feedback damping damping stabilising arrangement, it is characterized in that: self-feedback damping coil (6) is circle, ellipse, rectangle, prismatic, parallelogram or gear shape.

9, magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 1 and 2, it is characterized in that: optoelectronic sensor and follow-up accessory kit are as follows: optoelectronic sensor is photoelectrical coupler (8), accessory kit is: the signals collecting driving interface (9) that links together with light source (7) and photoelectrical coupler (8), the signals collecting that links together with light source (7) and signals collecting driving interface (9) is amplified interface (10), and the single-chip microcomputer (11) of the band display that links together with light source (7) and signals collecting amplification interface (10).

10, magnetic driven oxygen analyzer with self-feedback damping damping stabilising arrangement according to claim 3, it is characterized in that: optoelectronic sensor and follow-up accessory kit are as follows: optoelectronic sensor is photoelectrical coupler (8), accessory kit is: the signals collecting driving interface (9) that links together with light source (7) and photoelectrical coupler (8), the signals collecting that links together with light source (7) and signals collecting driving interface (9) is amplified interface (10), and the single-chip microcomputer (11) of the band display that links together with light source (7) and signals collecting amplification interface (10).