CN115105112A - Fitting method for heat dissipation curve of bulb tube and CT system - Google Patents
Fitting method for heat dissipation curve of bulb tube and CT system Download PDFInfo
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Abstract
The invention provides a fitting method of a bulb tube heat dissipation curve and a CT system, wherein the fitting method comprises the following steps: arranging a temperature sensor, and arranging the CT equipment in a shielding environment; adjusting the environmental parameters of the shielding environment to preset parameters, and controlling a heat dissipation system arranged in the shielding environment to stop working; controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature; and restarting the heat dissipation system, calculating the temperature of the bulb tube based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb tube heat dissipation curve of the bulb tube temperature based on a time domain until the temperature of the bulb tube is reduced to a stable temperature. After the technical scheme is adopted, the running time of the bulb tube can be controlled according to the fitted curve, and the service life of the bulb tube can be protected to the maximum extent under the condition that the bulb tube works normally.
Description
Technical Field
The invention relates to the field of medical equipment, in particular to a bulb tube heat dissipation curve fitting method and a CT system.
Background
At present, the heat capacity of a bulb needs to be calculated when a CT device is used as a medical device for detecting a human body, and the calculation of the heat capacity of the bulb is carried out according to a heat capacity characteristic curve given by a bulb manufacturer and correspondingly setting the service time of the bulb so as to ensure that the CT device is not overheated. Because each equipment is influenced by various factors such as the structure of the frame, the operation of the outer cover and the cooling system under the actual use condition, the actual heat capacity curve has great difference and is often faster than the normal heat capacity, and the service life of the bulb tube is greatly reduced by continuously using the bulb tube to carry out X-ray exposure.
Therefore, a method for calculating the heat dissipation characteristic of the bulb as accurately as possible is needed to accurately predict the operating state of the bulb and adjust the operating time of the bulb accordingly.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide a bulb tube heat dissipation curve fitting method and a CT system, which can control the running time of a bulb tube according to a fitted curve and can protect the service life of the bulb tube to the maximum extent under the condition that the bulb tube works normally.
The invention discloses a bulb tube heat dissipation curve fitting method of a CT system, which comprises the following steps:
arranging at least 4 temperature sensors on CT equipment of a CT system, and arranging the CT equipment in a shielding environment, wherein the CT equipment comprises a bulb tube and an oil pump, the bulb tube is connected with the oil pump through a pipeline, and the temperature sensors are arranged in the bulb tube, the joint of the pipeline and the bulb tube and the pipeline;
adjusting the environmental parameters of the shielding environment to preset parameters, and controlling a heat dissipation system arranged in the shielding environment to stop working;
controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature;
and restarting the heat dissipation system, calculating the temperature of the bulb tube based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb tube heat dissipation curve of the bulb tube temperature based on a time domain until the temperature of the bulb tube is reduced to a stable temperature.
Preferably, the step of arranging at least 4 temperature sensors on the CT device of the CT system and arranging the CT device in a shielded environment comprises:
arranging a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth sensor on CT equipment of a CT system, and respectively communicating and connecting with an exposure control board;
and a first temperature sensor is arranged to the cathode of the bulb, a second temperature sensor is arranged to the anode of the bulb, a third temperature sensor is arranged to the pipe wall of the middle pipe between the bulb and the pipeline, and a fourth temperature sensor is arranged in the pipeline.
Preferably, the step of adjusting the environmental parameter of the shielded environment to a preset parameter and controlling the heat dissipation system disposed in the shielded environment to stop working includes:
controlling the temperature and the humidity of the shielding environment to a preset temperature and a preset humidity;
the upper computer of the CT system is in communication connection with the CT equipment and sends a forced stopping instruction to the CT equipment so as to control an oil pump and heat dissipation equipment in the CT equipment to stop working;
controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature:
the upper computer controls the CT equipment to continuously expose;
the exposure control panel acquires a first temperature T acquired by a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor 1 A second temperature T 2 Third temperature T 3 And a fourth temperature T 4 And calculating the bulb temperature T based on the following formula Bulb tube ：
Wherein alpha isIs a first temperature T 1 Beta is the second temperature T 2 Gamma is the third temperature T 3 δ is the fourth temperature T 4 A fourth weight of (1), T dly Is a delay time parameter;
when temperature T of bulb tube Bulb tube And when the preset temperature is reached, stopping the exposure of the CT equipment.
Preferably, the step of restarting the heat dissipation system, calculating the bulb temperature based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb heat dissipation curve of the bulb temperature based on the time domain until the bulb temperature drops to a stable temperature includes:
and periodically calculating the bulb temperature based on the sampling period, stopping fitting the bulb heat dissipation curve when the slope of the bulb heat dissipation curve of the bulb temperature based on the time domain is smaller than a preset slope, and recording the bulb temperature as the stable temperature.
The invention also discloses a CT system,
arranging at least 4 temperature sensors on CT equipment of a CT system, and arranging the CT equipment in a shielding environment, wherein the CT equipment comprises a bulb tube and an oil pump, the bulb tube is connected with the oil pump through a pipeline, and the temperature sensors are arranged in the bulb tube, the joint of the pipeline and the bulb tube and the pipeline;
adjusting the environmental parameters of the shielding environment to preset parameters, and controlling a heat dissipation system arranged in the shielding environment to stop working;
controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature;
and restarting the heat dissipation system, calculating the bulb temperature based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb heat dissipation curve of the bulb temperature based on a time domain until the bulb temperature is reduced to a stable temperature.
Preferably, a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth sensor are arranged on a CT device of the CT system and are respectively in communication connection with an exposure control board;
and a first temperature sensor is arranged to the cathode of the bulb, a second temperature sensor is arranged to the anode of the bulb, a third temperature sensor is arranged to the pipe wall of the middle pipe between the bulb and the pipeline, and a fourth temperature sensor is arranged in the pipeline.
Preferably, the temperature and humidity of the shielded environment are controlled to a preset temperature and a preset humidity;
the upper computer of the CT system is in communication connection with the CT equipment and sends a forced stopping instruction to the CT equipment so as to control an oil pump and heat dissipation equipment in the CT equipment to stop working;
the upper computer controls the CT equipment to continuously expose;
the exposure control panel acquires a first temperature T acquired by a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor 1 A second temperature T 2 Third temperature T 3 And a fourth temperature T 4 And calculating the bulb temperature T based on the following formula Bulb tube ：
Wherein alpha is the first temperature T 1 Beta is the second temperature T 2 Gamma is the third temperature T 3 δ is the fourth temperature T 4 A fourth weight of (1), T dly Is a delay time parameter;
when bulb temperature T Bulb tube And when the preset temperature is reached, stopping the exposure of the CT equipment.
Preferably, the bulb temperature is periodically calculated based on the sampling period, when the slope of the bulb heat dissipation curve of the bulb temperature based on the time domain is smaller than a preset slope, the fitting of the bulb heat dissipation curve is stopped, and the bulb temperature is recorded as the stable temperature.
After the technical scheme is adopted, compared with the prior art, the method has the following beneficial effects:
1. the heat dissipation curves and the heat dissipation characteristics of different bulbs can be accurately obtained, and different working control strategies are formed for different CT devices;
2. the service life of the bulb is prolonged.
Drawings
FIG. 1 is a schematic flow chart of a method for fitting a heat dissipation curve of a bulb according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a CT system in accordance with a preferred embodiment of the present invention;
fig. 3 is a schematic diagram of a heat dissipation curve of a bulb according to a preferred embodiment of the present invention.
Detailed Description
The advantages of the invention are further illustrated in the following description of specific embodiments in conjunction with the accompanying drawings.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the disclosure, as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, unless otherwise specified and limited, it is to be noted that the terms "mounted," "connected," and "connected" are to be interpreted broadly, and may be, for example, a mechanical connection or an electrical connection, a communication between two elements, a direct connection, or an indirect connection via an intermediate medium, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in themselves. Thus, "module" and "component" may be used in a mixture.
Referring to fig. 1, a schematic flow chart of a bulb tube heat dissipation curve fitting method according to a preferred embodiment of the present invention is shown, in which the bulb tube heat dissipation curve fitting method includes the following steps:
s100: arranging at least 4 temperature sensors on CT equipment of a CT system, and arranging the CT equipment in a shielding environment, wherein the CT equipment comprises a bulb tube and an oil pump, the bulb tube is connected with the oil pump through a pipeline, and the temperature sensors are arranged in the bulb tube, the joint of the pipeline and the bulb tube and the pipeline;
the heat dissipation characteristic of the bulb tube is tested in an actual operation environment, so that at least 4 temperature sensors can be installed on the CT equipment in a shielding manner before the equipment is delivered from a factory or after the CT system is installed in a working space, and the whole CT equipment is placed in a shielding environment (such as a shielding room). In order to more accurately obtain the temperature change of the bulb tube, the temperature sensors are arranged in the bulb tube, the connecting part of the pipeline and the bulb tube and the pipeline so as to obtain the temperature condition of the bulb tube and the accessory parts thereof when the bulb tube actually works.
S200: adjusting the environmental parameters of the shielding environment to preset parameters, and controlling a heat dissipation system arranged in the shielding environment to stop working;
the shielding environment where the CT system is located is adjusted to the environment with preset parameters, so that the shielding environment can basically simulate the working environment of the CT equipment. All heat dissipation systems in the shielded environment are controlled to stop working at this time, that is, all conditions capable of dissipating heat to the CT device and the bulb tube are temporarily avoided.
S300: controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature;
the CT device will then be controlled to continuously expose, so that the CT device is adjusted to a working state in a shielded environment that has been simulated as the actual working environment, so that the bulb will heat up quickly (and since all heat dissipation conditions have been circumvented, the rate of heating up can be quite fast). Meanwhile, the actual temperature of each temperature sensor is detected in real time, and the exposure of the CT equipment is suspended until the temperature of all the bulbs integrated by the actual temperatures under the preset condition is higher than the preset temperature. It is understood that the preset temperature may be an allowable maximum temperature of the bulb under a normal operating condition, so that the heat dissipation capability defined by the bulb after the heat dissipation characteristic of the bulb under the maximum allowable temperature can be completely detected.
S400: restarting the heat dissipation system, calculating the bulb tube temperature based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb tube heat dissipation curve of the bulb tube temperature based on the time domain until the bulb tube temperature is reduced to a stable temperature
At this time, the heat dissipation system is restarted, the heat dissipation system has the same heat dissipation capability as that of the CT apparatus during normal operation, and the actual temperature fed back by each temperature sensor is collected in a sampling period (for example, sampling is performed once every 50 ms), so as to calculate the temperature of the bulb, and a heat dissipation curve of the bulb (see fig. 3) is drawn based on a time domain (for example, a coordinate system is established by taking time as a horizontal axis, and a rectangular coordinate system is established by taking the temperature of the bulb as a vertical axis), so that the temperature of the bulb is stable and does not fluctuate.
According to the obtained bulb tube heat dissipation curve, the stored bulb tube heat dissipation curve can be used as reference time for exposure control, the interval of the exposure bulb tube and the exposure time length are reasonably arranged according to the temperature drop curve, and therefore the bulb tube heat dissipation curve is controlled to be in a working state as far as possible under the condition that the temperature does not exceed the preset temperature.
In a preferred embodiment, step S100 includes:
s110: arranging a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth sensor on CT equipment of a CT system, and respectively communicating with an exposure control panel;
s120: installing a first temperature sensor to the cathode of the bulb, installing a second temperature sensor to the anode of the bulb, installing a third temperature sensor to the wall of the middle pipe between the bulb and the pipeline, and installing a fourth temperature sensor into the pipeline
Referring to fig. 2, in order to accurately obtain the temperature of the bulb, the four sensors may be arranged according to the configuration, since the temperature factor of the bulb is influenced by the cathode, the anode and the pipeline of the oil pipe.
Further, step S200 includes:
s210: controlling the temperature and the humidity of the shielding environment to a preset temperature and a preset humidity;
s220: the upper computer of the CT system is in communication connection with the CT equipment and sends a forced stop instruction to the CT equipment so as to control an oil pump and heat dissipation equipment in the CT equipment to stop working, and the upper computer is used for controlling the heat dissipation system to be forcibly suspended even if the oil pump and the heat dissipation system (such as a fan, an air conditioner and the like) cannot stop.
Further, step S300 includes:
s310: the upper computer controls the CT equipment to continuously expose so as to preheat the bulb tube;
s320: the exposure control panel acquires a first temperature T acquired by a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor 1 A second temperature T 2 A third temperature T 3 And a fourth temperature T 4 And calculating the bulb temperature T based on the following formula Bulb tube ：
Wherein alpha is the first temperature T 1 Beta is the second temperature T 2 Gamma is the third temperature T 3 δ is the fourth temperature T 4 A fourth weight of (1), T dly Is a delay time parameter;
the delay time parameter is set based on the fourth temperature T obtained at present, mainly considering the temperature change lag in the pipeline and the temperature change of the bulb (after the bulb is heated, the temperature needs to be conducted into the pipeline after a certain time), and therefore, after the delay time parameter is set, the fourth temperature T obtained at present can be used as the basis 4 (but not reflecting the current temperature) to more accurately calculate the bulb temperature.
S330: when the temperature T of the bulb tube Bulb tube When a preset temperature (e.g., 80 ℃) is reached, the exposure of the CT device is stopped.
More preferably, step S400 includes:
s410: periodically calculating the bulb temperature based on the sampling period, stopping fitting the bulb heat dissipation curve when the slope of the bulb heat dissipation curve of the bulb temperature based on the time domain is smaller than a preset slope, and recording the bulb temperature as the stable temperature
In order to determine whether the bulb temperature drops to a stable temperature, such as room temperature, normal temperature, it is determined whether the slope of the bulb heat dissipation curve (generally, when the bulb temperature gradually drops, the slope of the bulb heat dissipation curve should be larger (the slope itself is negative, and the absolute value thereof is smaller)) is smaller than a preset slope (the slope here is only calculated as the absolute value, and no ± determination is made), and when the slope is smaller, it means that the bulb temperature is already in a stable state, and the current bulb temperature can be recorded as the stable temperature.
Finally, the heat dissipation performance of the bulb tube is reversely deduced according to the obtained bulb tube heat dissipation curve (for example, the heat dissipation performance is obtained by derivation at a certain bulb tube temperature), so that the continuous working time of the bulb tube is controlled, and the service life is prolonged.
The invention also discloses a CT system, wherein at least 4 temperature sensors are arranged on the CT equipment of the CT system, and the CT equipment is arranged in a shielding environment, wherein the CT equipment comprises a bulb and an oil pump, the bulb is connected with the oil pump through a pipeline, and the temperature sensors are arranged in the bulb, the joint of the pipeline and the bulb and the pipeline; adjusting the environmental parameters of the shielding environment to preset parameters, and controlling a heat dissipation system arranged in the shielding environment to stop working; controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature; and restarting the heat dissipation system, calculating the temperature of the bulb tube based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb tube heat dissipation curve of the bulb tube temperature based on a time domain until the temperature of the bulb tube is reduced to a stable temperature.
Preferably, a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth sensor are arranged on a CT device of the CT system and are respectively in communication connection with an exposure control board; and a first temperature sensor is arranged to the cathode of the bulb, a second temperature sensor is arranged to the anode of the bulb, a third temperature sensor is arranged to the pipe wall of the middle pipe between the bulb and the pipeline, and a fourth temperature sensor is arranged in the pipeline.
Preferably, the temperature and humidity of the shielded environment are controlled to a preset temperature and a preset humidity; the upper computer of the CT system is in communication connection with the CT equipment and sends a forced stopping instruction to the CT equipment so as to control an oil pump and heat dissipation equipment in the CT equipment to stop working; the upper computer controls the CT equipment to continuously expose; the exposure control panel acquires a first temperature T acquired by the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth sensor 1 A second temperature T 2 A third temperature T 3 And a fourth temperature T 4 And calculating the bulb temperature T based on the following formula Bulb tube ：
Wherein alpha is the first temperature T 1 Beta is the second temperature T 2 Gamma is the third temperature T 3 δ is the fourth temperature T 4 A fourth weight of (1), T dly Is a delay time parameter; when bulb temperature T Bulb tube And when the preset temperature is reached, stopping the exposure of the CT equipment.
Preferably, the bulb temperature is periodically calculated based on the sampling period, when the slope of the bulb heat dissipation curve of the bulb temperature based on the time domain is smaller than a preset slope, the fitting of the bulb heat dissipation curve is stopped, and the bulb temperature is recorded as the stable temperature.
It should be noted that the embodiments of the present invention have been described in terms of preferred embodiments, and not by way of limitation, and that those skilled in the art can make modifications and variations of the embodiments described above without departing from the spirit of the invention.
Claims (8)
1. A fitting method for a heat dissipation curve of a bulb tube of a CT system is characterized by comprising the following steps:
arranging at least 4 temperature sensors on CT equipment of a CT system, and arranging the CT equipment in a shielding environment, wherein the CT equipment comprises a bulb tube and an oil pump, the bulb tube is connected with the oil pump through a pipeline, and the temperature sensors are arranged in the bulb tube, the joint of the pipeline and the bulb tube and the pipeline;
adjusting the environmental parameters of the shielding environment to preset parameters, and controlling a heat dissipation system arranged in the shielding environment to stop working;
controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature;
and restarting the heat dissipation system, calculating the bulb tube temperature based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb tube heat dissipation curve of the bulb tube temperature based on a time domain until the bulb tube temperature is reduced to a stable temperature.
2. The method of claim 1, wherein at least 4 temperature sensors are disposed on a CT device of a CT system, and the step of disposing the CT device in a shielded environment comprises:
arranging a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth sensor on CT equipment of a CT system, and respectively communicating with an exposure control panel;
and installing the first temperature sensor to the cathode of the bulb, installing the second temperature sensor to the anode of the bulb, installing the third temperature sensor to the pipe wall of the middle pipe between the bulb and the pipeline, and installing the fourth temperature sensor to the inside of the pipeline.
3. The bulb tube heat dissipation curve fitting method of claim 2,
the method comprises the following steps of adjusting the environmental parameters of the shielding environment to preset parameters and controlling a heat dissipation system arranged in the shielding environment to stop working:
controlling the temperature and the humidity of the shielding environment to a preset temperature and a preset humidity;
the upper computer of the CT system is in communication connection with the CT equipment and sends a forced stopping instruction to the CT equipment so as to control an oil pump and heat dissipation equipment in the CT equipment to stop working;
controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature:
the upper computer controls the CT equipment to continuously expose;
the exposure control panel acquires a first temperature T acquired by a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth temperature sensor 1 A second temperature T 2 A third temperature T 3 And a fourth temperature T 4 And calculating the bulb temperature T based on the following formula Bulb tube ：
Wherein alpha is the first temperature T 1 Beta is the second temperature T 2 Gamma is the third temperature T 3 δ is the fourth temperature T 4 A fourth weight of (1), T dly Is a delay time parameter;
when the temperature T of the bulb tube Bulb tube And stopping exposure of the CT equipment when the preset temperature is reached.
4. The method of claim 1, wherein restarting the heat dissipation system and calculating the bulb temperature based on the actual temperature of each temperature sensor for a sampling period, and wherein plotting the bulb temperature time-domain based bulb heat dissipation curve until the bulb temperature drops to a stable temperature comprises:
and periodically calculating the bulb temperature based on the sampling period, stopping fitting the bulb heat dissipation curve when the slope of the bulb heat dissipation curve of the bulb temperature based on the time domain is smaller than a preset slope, and recording the bulb temperature as the stable temperature.
5. A CT system is characterized in that a CT system is provided,
arranging at least 4 temperature sensors on CT equipment of a CT system, and arranging the CT equipment in a shielding environment, wherein the CT equipment comprises a bulb tube and an oil pump, the bulb tube is connected with the oil pump through a pipeline, and the temperature sensors are arranged in the bulb tube, the joint of the pipeline and the bulb tube and the pipeline;
adjusting the environmental parameters of the shielding environment to preset parameters, and controlling a heat dissipation system arranged in the shielding environment to stop working;
controlling the CT equipment to continuously expose, detecting the actual temperature of each temperature sensor in real time, and stopping exposing the CT equipment when the temperature of a bulb tube integrated by each actual temperature is higher than a preset temperature;
and restarting the heat dissipation system, calculating the bulb tube temperature based on the actual temperature of each temperature sensor in a sampling period, and drawing a bulb tube heat dissipation curve of the bulb tube temperature based on a time domain until the bulb tube temperature is reduced to a stable temperature.
6. The CT system of claim 5,
arranging a first temperature sensor, a second temperature sensor, a third temperature sensor and a fourth sensor on CT equipment of a CT system, and respectively communicating with an exposure control panel;
and installing the first temperature sensor to the cathode of the bulb, installing the second temperature sensor to the anode of the bulb, installing the third temperature sensor to the pipe wall of the middle pipe between the bulb and the pipeline, and installing the fourth temperature sensor to the inside of the pipeline.
7. The CT system of claim 6,
controlling the temperature and the humidity of the shielding environment to a preset temperature and a preset humidity;
the upper computer of the CT system is in communication connection with the CT equipment and sends a forced stopping instruction to the CT equipment so as to control an oil pump and heat dissipation equipment in the CT equipment to stop working;
the upper computer controls the CT equipment to continuously expose;
the exposure control panel acquires first temperature acquired by the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensorTemperature T 1 A second temperature T 2 A third temperature T 3 And a fourth temperature T 4 And calculating the bulb temperature T based on the following formula Bulb tube ：
Wherein α is the first temperature T 1 Beta is the second temperature T 2 Gamma is the third temperature T 3 δ is the fourth temperature T 4 A fourth weight of (1), T dly Is a delay time parameter;
when the temperature T of the bulb tube Bulb tube And stopping exposure of the CT equipment when the preset temperature is reached.
8. The CT system of claim 5,
and periodically calculating the bulb temperature based on the sampling period, stopping fitting the bulb heat dissipation curve when the slope of the bulb heat dissipation curve of the bulb temperature based on the time domain is smaller than a preset slope, and recording the bulb temperature as the stable temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210702846.4A CN115105112B (en) | 2022-06-21 | Bulb tube heat dissipation curve fitting method and CT system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210702846.4A CN115105112B (en) | 2022-06-21 | Bulb tube heat dissipation curve fitting method and CT system |
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| CN115105112A true CN115105112A (en) | 2022-09-27 |
| CN115105112B CN115105112B (en) | 2024-05-24 |
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