CN209945428U - Calibrating device of breathing machine humiture - Google Patents
Calibrating device of breathing machine humiture Download PDFInfo
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- CN209945428U CN209945428U CN201921155549.2U CN201921155549U CN209945428U CN 209945428 U CN209945428 U CN 209945428U CN 201921155549 U CN201921155549 U CN 201921155549U CN 209945428 U CN209945428 U CN 209945428U
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Abstract
The utility model discloses a temperature and humidity calibrating device of a breathing machine, which comprises a temperature acquisition circuit, a wave-limiting adjusting circuit and a voltage-stabilizing transmitting circuit, the temperature acquisition circuit acquires temperature signals of the air inlet end of the pipeline of the respirator, the wave limiting adjusting circuit utilizes a wave limiting circuit consisting of an operational amplifier AR1, a resistor R3-a resistor R5 and a capacitor C2-a capacitor C4 to filter abnormal frequency of the signals, meanwhile, a triode Q1 and a triode Q2 are used to form a composite circuit to screen low-level signals and input the low-level signals into the non-inverting input end of an operational amplifier AR2, the voltage-stabilizing transmitting circuit utilizes a voltage stabilizing circuit consisting of a triode Q3 and a voltage stabilizing tube D7 to stabilize the voltage of signals, the signals are transmitted into a control terminal of the respirator through a signal transmitter E1, the temperature signals at the air inlet end of the pipeline of the respirator can be monitored in real time, and after the signal is adjusted, the signal is sent to a breathing machine control terminal through a signal emitter E1, and a trigger signal for adjusting the temperature of the air inlet end of the breathing machine pipeline is sent to the breathing machine control terminal.
Description
Technical Field
The utility model relates to a breathing machine technical field especially relates to a calibrating device of breathing machine humiture.
Background
The ventilator is used for cardiac resuscitation respiratory support, respiratory insufficiency caused by various reasons and postoperative respiratory support in operation, the ventilator in clinical work at present monitors the temperature, but does not measure the temperature of the air inlet end of the ventilator pipeline simultaneously, the temperature and the humidity in the normal respiratory tract of a human body are appropriate, but the temperature and the humidity of the ventilator cannot be measured accurately, so that in clinic, the normal needs of the body of a patient cannot be improved and met better, especially, the requirements of the patient on the temperature in different seasons are different, the surrounding environment and the seasons are different, the fitness and the comfort of the body of the patient to the temperature and the humidity are different, the temperature of the airway is high, the humidity is low, sputum is sticky definitely after drying, and the temperature and the humidity need to be monitored.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model aims to provide a calibrating device of breathing machine humiture has the characteristic of thinking ingenious, humanized design, can monitor breathing machine pipeline inlet end temperature signal in real time, sends to breathing machine control terminal in through signal transmitter E1 after adjusting the signal, for the trigger signal of breathing machine control terminal regulation breathing machine pipeline inlet end temperature. The technical proposal for solving the problem is that the temperature and humidity calibrating device of the breathing machine comprises a temperature acquisition circuit, a wave limiting adjusting circuit and a voltage stabilizing transmitting circuit, the temperature acquisition circuit acquires temperature signals of the air inlet end of the pipeline of the respirator, the wave limiting adjusting circuit utilizes a wave limiting circuit consisting of an operational amplifier AR1, a resistor R3-a resistor R5 and a capacitor C2-a capacitor C4 to filter abnormal frequency of the signals, meanwhile, a triode Q1 and a triode Q2 are used to form a composite circuit to screen low-level signals and input the low-level signals into the non-inverting input end of an operational amplifier AR2, meanwhile, the output signal of the operational amplifier AR1 is divided by a resistor R6 and a resistor R8 and then input into the inverting input terminal of the operational amplifier AR2, the operational amplifier AR2 compares the processed signal and then inputs the signal into the voltage-stabilizing transmitting circuit, the voltage-stabilizing transmitting circuit adopts a voltage-stabilizing circuit consisting of a triode Q3 and a voltage-stabilizing tube D7 to stabilize the voltage of the signal, and the signal is transmitted into a control terminal of the respirator through a signal transmitter E1;
the limiting wave regulating circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R11 and a resistor R3 and one end of a capacitor C3, the inverting input end of the operational amplifier AR1 is grounded, the output end of the operational amplifier AR1 is connected with the other end of the resistor R11, one end of the resistor R6, the base of a triode Q1 and the emitter of a triode Q2, the other end of a resistor R3 is connected with the resistor R4, one end of a capacitor C2, the other end of a capacitor C3 is connected with one end of a resistor R5 and one end of a capacitor C4, the other ends of a resistor R5 and a capacitor C2 are grounded, the other end of the resistor R4 is connected with the other end of a capacitor C4 and a collector of a triode Q1, an emitter of the triode Q1 is connected with a base of a triode Q2 and one end of a resistor R7, the other end of a resistor R7 is grounded, a collector of the triode Q2 is connected with a non-inverting input end of a carrier AR2, an inverting input end of the carrier AR2 is connected with the other end of a resistor R6 and one end of a resistor R8, and the.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. an operational amplifier AR1, a resistor R3, a resistor R5 and a capacitor C2, a capacitor C4 are used for forming a wave limiting circuit to filter abnormal frequency of signals, a frequency selecting circuit formed by the resistor R3, the resistor R5 and the capacitor C2, the capacitor C4 is used for screening single frequency, the effect of filtering the abnormal frequency is achieved, and meanwhile, an operational amplifier AR1 is used for amplifying the signals and the effect of limiting waves is achieved;
2. a compound circuit consisting of a triode Q1 and a triode Q2 is used for screening low-level signals and inputting the low-level signals into the non-inverting input end of an operational amplifier AR2, a triode Q1 is used for filtering high-level signals, the triode Q2 is conducted at a low level, since the thermistor RW1 with the model PT100 has the property that the higher the temperature, the larger the resistance, the lower the signal of the temperature acquisition circuit, the transistor Q2 inputs the low level signal into the non-inverting input terminal of the operational amplifier AR2, meanwhile, an output signal of the operational amplifier AR1 is divided by a resistor R6 and a resistor R8 and then input into the inverting input end of the operational amplifier AR2, the operational amplifier AR2 compares and processes the signal and then inputs the signal into a voltage stabilization transmitting circuit, a signal static working point is stabilized, a voltage stabilization circuit consisting of a triode Q3 and a voltage stabilization tube D7 is used for stabilizing the voltage of the signal, the signal is transmitted into a breathing machine control terminal by a signal transmitter E1, and a trigger signal for the breathing machine control terminal to adjust the temperature of the air inlet end of a breathing machine pipeline is generated.
Drawings
Fig. 1 is a circuit diagram of the calibrating apparatus for temperature and humidity of a breathing machine of the present invention.
Detailed Description
The foregoing and other technical matters, features and effects of the present invention will be apparent from the following detailed description of the embodiments, which is to be read in connection with the accompanying fig. 1. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The temperature and humidity calibration device comprises a temperature acquisition circuit, a wave limiting regulation circuit and a voltage stabilizing emission circuit, wherein acquired signals of the temperature and humidity are only different from sensors, and the calibration of the signals is the same, so that the temperature signal calibration circuit is taken as an example in the scheme, and meanwhile, a temperature signal of the scheme is displayed through a display module of the respirator;
the temperature acquisition circuit acquires a temperature signal at the air inlet end of a pipeline of the respirator, the wave-limiting adjusting circuit utilizes a wave-limiting circuit consisting of an operational amplifier AR1, a resistor R3, a resistor R5 and a capacitor C2, a capacitor C4 to filter out abnormal frequency of the signal, a composite circuit consisting of a triode Q1 and a triode Q2 is utilized to screen out a low-level signal and input the low-level signal into the non-inverting input end of an operational amplifier AR2, an output signal of the operational amplifier AR1 is divided by a resistor R6 and a resistor R8 and then input into the inverting input end of the operational amplifier AR2, the operational amplifier AR2 compares and processes the signal and then inputs the signal into a voltage-stabilizing transmitting circuit, and the voltage-stabilizing transmitting circuit utilizes a triode Q3 and a voltage-stabilizing tube D7 to form a voltage-stabilizing;
the wave limiting adjusting circuit utilizes an operational amplifier AR1, a resistor R3, a resistor R5 and a capacitor C2, a capacitor C4 to form a wave limiting circuit to filter abnormal frequency of signals, utilizes a frequency selecting circuit consisting of a resistor R3, a resistor R5 and a capacitor C2, a capacitor C4 to filter single frequency to filter abnormal frequency, utilizes an operational amplifier AR1 to amplify signals to limit waves, utilizes a composite circuit consisting of a triode Q1 and a triode Q2 to filter low-level signals to be input into an in-phase input end of the operational amplifier AR2, utilizes a triode Q1 to filter high-level signals, and utilizes a triode Q2 to be in low-level conduction, because the temperature of a thermistor RW1 with the model of PT100 is higher in temperature and higher in resistance, the temperature of the signal of a temperature acquisition circuit is lower, the triode Q2 inputs low-level signals into an in-phase input end of the operational amplifier AR2, and simultaneously outputs signals of the operational amplifier 1 through the resistor R6, the resistor R, The circuit comprises an operational amplifier AR2, an operational amplifier AR2, a voltage stabilizing and transmitting circuit, a stable signal static working point, a non-inverting input terminal of the operational amplifier AR1, a resistor R11, a resistor R3 and a capacitor C3, wherein the non-inverting input terminal of the operational amplifier AR1 is grounded, an output terminal of the operational amplifier AR1 is connected with the other terminal of the resistor R11, one terminal of the resistor R11, a base of a transistor Q11 and an emitter of the transistor Q11, the other terminal of the resistor R11 is connected with the resistor R11, one terminal of the capacitor C11, the other terminal of the resistor R11 is grounded, the other terminal of the resistor R11 is connected with the base of the transistor Q11 and one terminal of the resistor R11, the other terminal of the resistor R11 is grounded, and a collector of the non-inverting input terminal of the transistor AR 11 is connected with the collector of the transistor Q11, the emitter of the transistor Q11 is connected with the base of the transistor Q11 and one terminal of the transistor R11. The inverting input end of the operational amplifier AR2 is connected with the other end of the resistor R6 and one end of the resistor R8, and the other end of the resistor R8 is grounded;
the voltage-stabilizing transmitting circuit adopts a triode Q3 and a stabilivolt D7 to form a voltage-stabilizing circuit to stabilize the voltage of a signal, the voltage-stabilizing transmitting circuit is sent into a control terminal of a respirator through a signal transmitter E1 and is used for adjusting a trigger signal of the temperature of the air inlet end of a pipeline of the respirator, an emitting electrode of a triode Q3 is connected with the output end of a transport amplifier AR2 and one end of a resistor R9, a base electrode of the triode Q3 is connected with the other end of the resistor R9 and the negative electrode of the stabilivolt D7, the positive electrode of the stabilivolt D7 is grounded, a collecting electrode of the triode Q3 is connected with one end of a resistor R10, and the other end of;
the frequency acquisition circuit adopts a thermistor RW1 with the model number PT100 to acquire temperature signals of the air inlet end of a respirator pipeline, one end of the thermistor RW1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a power supply +5V, the other end of the thermistor RW1 is connected with one end of a resistor R2, one end of a capacitor C1, the negative electrode of a voltage regulator tube D1 and the non-inverting input end of an operational amplifier AR1, and the other ends of the resistor R2 and the capacitor C1 are grounded.
The utility model discloses when specifically using, a calibrating device of breathing machine humiture, including temperature acquisition circuit, limit wave regulating circuit and steady voltage transmitting circuit, temperature acquisition circuit gathers breathing machine pipeline inlet end temperature signal, limit wave regulating circuit uses fortune amplifier AR1 and resistance R3-resistance R5 and electric capacity C2-electric capacity C4 to constitute limit wave circuit filtering signal abnormal frequency, utilize resistance R3-resistance R5 and electric capacity C2-electric capacity C4 to constitute frequency selection circuit screening single frequency, play the effect of filtering abnormal frequency, simultaneously use fortune amplifier AR1 to amplify the signal, play the effect of limit wave, and use triode Q1, triode Q2 to constitute the composite circuit screening low level signal input fortune amplifier AR2 in-phase input end, utilize triode Q1 to filter high level signal, triode Q2 is the low level switch-on, because the nature that the thermistor RW1 that the model is PT100 is RW1 is low level switch-on, the higher the temperature is, the larger the resistance value is, the lower the signal of the temperature acquisition circuit is, therefore, the triode Q2 inputs the low level signal into the non-inverting input end of the operational amplifier AR2, meanwhile, the output signal of the operational amplifier AR1 is input into the inverting input end of the operational amplifier AR2 after being subjected to voltage division through the resistor R6 and the resistor R8, the operational amplifier AR2 inputs the signal into the voltage stabilizing transmitting circuit after comparing and processing the signal, and stabilizes the static working point of the signal, and the voltage stabilizing transmitting circuit utilizes the triode Q3 and the voltage stabilizing tube D7 to form a voltage stabilizing circuit for stabilizing the voltage of the signal and transmits the signal into the control terminal of.
The above description is provided for further details of the present invention with reference to the specific embodiments, which should not be construed as limiting the present invention; to the utility model discloses affiliated and relevant technical field's technical personnel are based on the utility model discloses under the technical scheme thinking prerequisite, the extension of doing and the replacement of operating method, data all should fall within the utility model discloses within the protection scope.
Claims (3)
1. A calibrating device for the temperature and the humidity of a breathing machine comprises a temperature acquisition circuit, a wave limiting adjusting circuit and a voltage stabilizing transmitting circuit, the temperature acquisition circuit acquires temperature signals at the air inlet end of a pipeline of the respirator, the wave limiting adjusting circuit filters abnormal frequency of the signals by using a wave limiting circuit consisting of an operational amplifier AR1, a resistor R3-a resistor R5 and a capacitor C2-a capacitor C4, meanwhile, a triode Q1 and a triode Q2 are used to form a composite circuit to screen low-level signals and input the low-level signals into the non-inverting input end of an operational amplifier AR2, meanwhile, the output signal of the operational amplifier AR1 is divided by a resistor R6 and a resistor R8 and then input into the inverting input terminal of the operational amplifier AR2, the operational amplifier AR2 compares the processed signal and then inputs the signal into the voltage-stabilizing transmitting circuit, the voltage-stabilizing transmitting circuit adopts a voltage-stabilizing circuit consisting of a triode Q3 and a voltage-stabilizing tube D7 to stabilize the voltage of the signal, and the signal is transmitted into a control terminal of the respirator through a signal transmitter E1;
the limiting wave regulating circuit comprises an operational amplifier AR1, wherein the non-inverting input end of the operational amplifier AR1 is connected with one end of a resistor R11 and a resistor R3 and one end of a capacitor C3, the inverting input end of the operational amplifier AR1 is grounded, the output end of the operational amplifier AR1 is connected with the other end of the resistor R11, one end of the resistor R6, the base of a triode Q1 and the emitter of a triode Q2, the other end of a resistor R3 is connected with the resistor R4, one end of a capacitor C2, the other end of a capacitor C3 is connected with one end of a resistor R5 and one end of a capacitor C4, the other ends of a resistor R5 and a capacitor C2 are grounded, the other end of the resistor R4 is connected with the other end of a capacitor C4 and a collector of a triode Q1, an emitter of the triode Q1 is connected with a base of a triode Q2 and one end of a resistor R7, the other end of a resistor R7 is grounded, a collector of the triode Q2 is connected with a non-inverting input end of a carrier AR2, an inverting input end of the carrier AR2 is connected with the other end of a resistor R6 and one end of a resistor R8, and the.
2. The calibrating device for the temperature and the humidity of the respirator as claimed in claim 1, wherein the voltage-stabilizing transmitting circuit comprises a triode Q3, the emitter of a triode Q3 is connected with the output end of the amplifier AR2 and one end of a resistor R9, the base of the triode Q3 is connected with the other end of a resistor R9 and the negative electrode of a stabilivolt D7, the positive electrode of the stabilivolt D7 is grounded, the collector of the triode Q3 is connected with one end of a resistor R10, and the other end of the resistor R10 is connected with a signal transmitter E1.
3. The calibrating device for the temperature and the humidity of the respirator as claimed in claim 1, wherein the frequency acquisition circuit comprises a thermistor RW1 with the model number PT100, one end of the thermistor RW1 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with a power supply +5V, the other end of the thermistor RW1 is connected with a resistor R2, one end of a capacitor C1, the negative electrode of a voltage regulator tube D1 and the non-inverting input end of an operational amplifier AR1, and the other ends of the resistor R2 and the capacitor C1 are grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155549.2U CN209945428U (en) | 2019-07-22 | 2019-07-22 | Calibrating device of breathing machine humiture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921155549.2U CN209945428U (en) | 2019-07-22 | 2019-07-22 | Calibrating device of breathing machine humiture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209945428U true CN209945428U (en) | 2020-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921155549.2U Active CN209945428U (en) | 2019-07-22 | 2019-07-22 | Calibrating device of breathing machine humiture |
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| Country | Link |
|---|---|
| CN (1) | CN209945428U (en) |
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- 2019-07-22 CN CN201921155549.2U patent/CN209945428U/en active Active
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