CN206362766U

CN206362766U - Gas sensor

Info

Publication number: CN206362766U
Application number: CN201621315113.1U
Authority: CN
Inventors: 王成文; 刘晶; 王若言
Original assignee: Zhejiang Lainuo Engineering Technology Co Ltd
Current assignee: Zhejiang Lainuo Engineering Technology Co Ltd
Priority date: 2016-12-02
Filing date: 2016-12-02
Publication date: 2017-07-28
Anticipated expiration: 2026-12-02

Abstract

The utility model discloses a kind of gas sensor, it includes a carrier, one first sensing unit is provided with it, one second sensing unit and a P model cootrols center, first sensing unit and the second sensing unit electrically conduct with P model cootrols center respectively, first sensing unit and the second sensing unit have a sensitizing range respectively, um grades of film is covered with the sensitizing range, there are two pins to be revealed in outside carrier at P model cootrols center, first sensing unit and the second sensing unit respectively there are two pins to be independently connected with P model cootrols center, so, sensing is stable, when control complicated process, also it can guarantee that accuracy, and with high sensitivity.

Description

Gas sensor

【Technical field】

The utility model is related to a kind of gas sensor, espespecially a kind of highly sensitive gas sensor.

【Background technology】

Current sensor is usually to use PID controller, and PID just refers to proportional-integral-differential, PID controller conduct The history of controller practical earliest existing decades, accurate system model is not needed because it is easily understood, in use Etc. prerequisite, so remaining on now can also be controlled under most widely used industrial control unit (ICU), some particular cases It is good, but if Self-tuning System will be based on model, in order to which process model is found and kept to adjusting again for pid parameter online It is more difficult, during Closed loop operation, it is desirable to insert a test signal in the process, this method can cause disturbance, so being based on The pid parameter Self-tuning System of model is not very good in commercial Application.

Fig. 1 is referred to, existing sensor 1 is to be set up in parallel two sensing units 2,3 respectively, is worked independently, two Sensing unit 2,3 all senses abnormal conditions, is operated by PID control system 4, and multiple pins 5 are outwards connected, whole sensor It can just send corresponding prompting, and PID is when controlling non-linear, time-varying, coupling and parameter and the uncertain complex process of structure, Work is nor very good, if being to determine the process of complexity, how adjusting parameter is all useless, can not reflect completely, Sensor is caused to play a role completely.

Therefore, it is necessary to a kind of good gas sensor be designed, to overcome above mentioned problem.

【Utility model content】

For background technology problem encountered, the purpose of this utility model is to provide a kind of utilization P model cootrols Gas sensor.

To achieve the above object, the utility model uses following technological means：

A kind of gas sensor, it includes a carrier, and it is interior provided with one first sensing unit, one second sensing unit and one P model cootrols center, the first sensing unit and the second sensing unit electrically conduct with P model cootrols center respectively, the first sensing Unit and the second sensing unit have the film that um grades are covered with a sensitizing range, the sensitizing range, P model cootrols center tool respectively There are two pins to be revealed in outside carrier, the first sensing unit and the second sensing unit have respectively two pins independently with P moulds Type control centre connects.

Further, P model cootrols center has a table look-up module, and the first sensing unit and the second sensing unit are sensed To signal nursed one's health.

Further, P model cootrols center is time-sharing control system.

Further there is the film that um grades are covered with a heating module, heating module.

Further, the first sensing unit and the second sensing unit are made up of the non-conducting material of high heat conduction system.

Further, the first sensing unit and the second sensing unit are different induction installations.

Further, P model cootrols center, the first sensing unit and the second sensing unit are negative with a positive pole and one respectively Pole, the positive pole of the first sensing unit connects the positive pole at P model cootrols center, and the negative pole of the first sensing unit connects P model cootrols center Negative pole, the positive pole of the second sensing unit connects the positive pole at P model cootrols center, and the negative pole of the second sensing unit connects P model cootrols The negative pole at center.

Compared with prior art, the utility model has the advantages that：

In above-mentioned gas sensor, the first sensing unit and the second sensing unit are electrically led with P model cootrols center respectively Logical, the first sensing unit and the second sensing unit have the film that um grades are covered with a sensitizing range, the sensitizing range, P moulds respectively There are two pins to be revealed in outside carrier for type control centre, and the first sensing unit and the second sensing unit have two pins respectively Independently it is connected with P model cootrols center, in this way, sensing is stable, when control complicated process, it is accurate also to can guarantee that Property, and with high sensitivity.

【Brief description of the drawings】

Fig. 1 is the schematic diagram of sensor in the prior art；

Fig. 2 is the schematic diagram of the utility model gas sensor.

The drawing reference numeral explanation of embodiment：

Carrier 1	First sensing unit 2	Second sensing unit 3
			P model cootrols center 4	Pin 5

【Embodiment】

For ease of being better understood from the purpose of this utility model, structure, feature and effect etc., in conjunction with accompanying drawing and specifically The utility model is described in further detail for embodiment.

Refer to Fig. 2, a kind of gas sensor, it includes a carrier 1, is provided with one first sensing unit 2, one second in it The P model cootrols center 4 of sensing unit 3 and one, the first sensing unit 2 and the second sensing unit 3 respectively with P model cootrols center 4 Electrically conduct, the first sensing unit 2 and the second sensing unit 3 have on a sensitizing range, the sensitizing range respectively is covered with um grades Film, so that faster, there are two pins 5 to be revealed in outside carrier 1 at P model cootrols center 4 for the response of gas sensor, the One sensing unit 2 and the second sensing unit 3 respectively there are two pins 5 to be independently connected with P model cootrols center 4.

In addition, P model cootrols center 4 has a table look-up module, the first sensing unit 2 and the second sensing unit 3 are sensed To signal nursed one's health.P model cootrols center 4 is time-sharing control system.Um grades are covered with one heating module, heating module Film, the response speed of heating is exceedingly fast.First sensing unit 2 and the non-conductive material that the second sensing unit 3 is high heat conduction system Material is made.First sensing unit 2 and the second sensing unit 3 are different induction installations.The sensing of P model cootrols center 4, first is single The sensing unit 3 of member 2 and second has a positive pole and a negative pole respectively, and the positive pole of the first sensing unit 2 connects P model cootrols center 4 Positive pole, the negative pole of the first sensing unit 2 connects the negative pole at P model cootrols center 4, and the positive pole of the second sensing unit 3 connects P model controls The positive pole at center 4 processed, the negative pole of the second sensing unit 3 connects the negative pole at P model cootrols center 4.

In above-mentioned gas sensor, the first sensing unit 2 and the second sensing unit 3 are electrical with P model cootrols center 4 respectively Conducting, the first sensing unit 2 and the second sensing unit 3 have the film that um grades are covered with a sensitizing range, the sensitizing range respectively, There are two pins 5 to be revealed in outside carrier 1 at P model cootrols center 4, and the first sensing unit 2 and the second sensing unit 3 have respectively Two pins 5 are independently connected with P model cootrols center 4, in this way, sensing is stable, when control complicated process, also can Ensure accuracy, safety coefficient is high, and with high sensitivity.In above-mentioned gas sensor, heating and thermometric pass through software control Four pins 5 of the prior art, are become two pins 5 by Time-sharing control processed, so convenient control, reduce the machine of error Rate.

Detailed description above is only the explanation of the preferred embodiment of the utility model, and non-therefore limitation is of the present utility model specially Sharp scope, so, all equivalence techniques changes with carried out by this creation specification and diagramatic content are both contained in the utility model The scope of the claims in.

Claims

1. a kind of gas sensor, it is characterised in that including：

One carrier, it is interior provided with one first sensing unit, one second sensing unit and a P model cootrols center, and the first sensing is single Member and the second sensing unit electrically conduct with P model cootrols center respectively, and the first sensing unit and the second sensing unit have respectively There is a sensitizing range, um grades of film be covered with the sensitizing range, there are two pins to be revealed in outside carrier at P model cootrols center, First sensing unit and the second sensing unit respectively there are two pins to be independently connected with P model cootrols center.

2. gas sensor as claimed in claim 1, it is characterised in that：P model cootrols center has a table look-up module, to the The signal that one sensing unit and the second sensing unit are sensed is nursed one's health.

3. gas sensor as claimed in claim 1, it is characterised in that：P model cootrols center is time-sharing control system.

4. gas sensor as claimed in claim 1, it is characterised in that：Further have on a heating module, heating module It is covered with um grades of film.

5. gas sensor as claimed in claim 1, it is characterised in that：First sensing unit and the second sensing unit are led for height The non-conducting material of hot systems is made.

6. gas sensor as claimed in claim 1, it is characterised in that：First sensing unit and the second sensing unit are difference Induction installation.

7. gas sensor as claimed in claim 1, it is characterised in that：P model cootrols center, the first sensing unit and second Sensing unit has a positive pole and a negative pole respectively, and the positive pole of the first sensing unit connects the positive pole at P model cootrols center, and first passes The negative pole of sense unit connects the negative pole at P model cootrols center, and the positive pole of the second sensing unit connects the positive pole at P model cootrols center, the The negative pole of two sensing units connects the negative pole at P model cootrols center.