CN113288494B - Dental diagnosis device with synchronous cold and hot probe and control method - Google Patents
Dental diagnosis device with synchronous cold and hot probe and control method Download PDFInfo
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- CN113288494B CN113288494B CN202110668029.7A CN202110668029A CN113288494B CN 113288494 B CN113288494 B CN 113288494B CN 202110668029 A CN202110668029 A CN 202110668029A CN 113288494 B CN113288494 B CN 113288494B
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- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
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Abstract
The invention discloses a device with a synchronous cold and hot probe for dental diagnosis and a control method, belonging to dental diagnosis instruments and used for dental diagnosis, wherein a hot end probe forms a loop for running high-temperature solution through a solution pump A, a pipeline, a pipe fitting and a hot end cold carrying container, and the hot end cold carrying container is heated through a condenser B; the cold end probe and the cold end cold carrying container form a loop for running low-temperature solution through the solution pump B and a pipeline, a pipe fitting and the cold end cold carrying container, and the cold end cold carrying container is refrigerated through an evaporator; the compressor, the condenser A, the condenser B and the evaporator form a loop for a refrigerant to run through a pipeline and a pipe fitting; and a fan is arranged on one side of the condenser A. In view of the technical scheme, the cold and hot ends can be obtained simultaneously, the probes extend out of the cold and hot ends respectively, the cold and hot sensitivity degree of the teeth of the patient can be diagnosed accurately, safely and hygienically in colleges and universities, and the auxiliary diagnosis and treatment function is good.
Description
Technical Field
The invention belongs to a dental diagnosis instrument, and particularly relates to a dental diagnosis device with a synchronous cold and hot probe.
Background
In the dental diagnosis process, toothache is divided into cold sensitivity and heat sensitivity, the pathogenesis of the two pains is different, and the treatment scheme is also different. Under the condition of the prior art, when a dentist judges the type of toothache of a patient, whether the tooth is heat-sensitive or not is judged by adopting a tooth burning glue rod or a mode of dipping a cotton ball in hot water to stimulate the tooth; and judging whether the teeth are cold sensitive or not by blowing cold air or stimulating the teeth by a frozen sucker.
Among the above-mentioned mode of judging heat sensitivity and cold sensitivity, if the in-process temperature control that adopts the stick of burning tooth to stimulate the tooth is not good, the too low effect that can not play the heat stimulation of temperature, the too high easy dripping of temperature scalds the oral mucosa, and the gum that produces after the stick of burning tooth can depend on the tooth in addition, and is difficult for cleaning, makes doctor's unable accurate judgement to the concrete tooth of disease easily, exists the risk that causes treatment error. Secondly, the cotton ball is dipped in hot water for thermal stimulation, so that the sanitation is not easy to ensure, and the hot water is easy to drip into the oral cavity to cause scald of the oral cavity of a patient.
When testing cold sensitivity, because the tooth array is comparatively inseparable, cold wind air current blows on near a plurality of teeth easily, and the painful tooth position of inaccurate resolution, and easily arouses patient's unnecessary pain. Secondly, the popsicle is not easily available or stored, and it is also not easy to accurately identify which tooth is particularly painful.
Therefore, how to provide a practical diagnostic instrument in the process of dental diagnosis of cold-sensitive and heat-sensitive toothache becomes one of the technical problems to be solved by the industry.
Disclosure of Invention
The invention aims to provide a dental diagnosis device with a synchronous cold and hot probe, which can obtain cold and hot ends at the same time, the temperature of the cold and hot ends is accurately adjustable, the cold and hot ends are respectively provided with the probe to extend out, the cold and hot sensitivity of the teeth of a patient can be diagnosed efficiently, accurately, safely and hygienically, and the dental diagnosis device has a good auxiliary diagnosis and treatment function.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a dental diagnosis device with a synchronous cold and hot probe comprises a compressor, a condenser A, a condenser B, a capillary tube, an evaporator, a hot end probe and a cold end probe, wherein the hot end probe forms a loop for high-temperature solution operation with a hot end cold carrying container through a solution pump A, a pipeline, a pipe fitting and the hot end cold carrying container, and the hot end cold carrying container is heated through the condenser B; the cold end probe and the cold end cold-carrying container form a loop for low-temperature solution operation through a solution pump B and a pipeline, a pipe fitting and the cold end cold-carrying container, and the cold end cold-carrying container dissipates heat through an evaporator; the compressor, the condenser A, the condenser B and the evaporator form a loop for a refrigerant to run through a pipeline and a pipe fitting; a connecting pipeline between the condenser B and the evaporator is a capillary tube, and a high-pressure liquid refrigerant of the condenser B enters the evaporator to be evaporated and absorb heat after being subjected to pressure reduction through the capillary tube; and a fan is arranged on one side of the condenser A.
Furthermore, the cold end probe, the hot end probe, the cold end cold carrying container and the hot end cold carrying container comprise temperature sensors for sensing temperature, and the temperature sensors are connected with the controller through electric signals.
Further, the temperature range of the hot end probe is 40-70 ℃; the temperature range of the cold end probe is-10 ℃ to 10 ℃.
A control method for a dental diagnosis device with a synchronous cold-hot probe comprises the steps that temperature sensors TH-R2 arranged on a hot-end probe, a temperature sensor TH-R1 arranged on a cold-end probe, temperature sensors TH0-R1 arranged in a cold-end cold carrying container, temperature sensors TH0-R2 arranged in a hot-end cold carrying container, a temperature sensor TH-R2, a temperature sensor TH-R1, a temperature sensor TH0-R1 and a temperature sensor TH0-R2 are communicated with a controller through electric signals, and when the cold-end probe temperature sensed by the temperature sensor TH-R1 and/or the hot-end probe temperature sensed by the temperature sensor TH-R2 communicated with the controller are different from a set temperature, the controller starts a compressor, and the cold-end probe temperature sensed by the cold-end probe and/or the hot-end probe temperature sensed by the temperature sensor TH-R2 are/or are different from the set temperature, One or more of the fan, the solution pump A and the solution pump B achieves that the sensed temperature approaches the set temperature.
Further, when the temperature sensed by the temperature sensor TH-R1 at the cold end is higher than the set temperature, and the temperature sensed by the temperature sensor TH-R2 at the hot end is higher than or close to the set temperature, the compressor and the fan are started, the solution pump B is started, and the solution pump a is not started; if the temperature sensed by the temperature sensor TH-R1 of the cold-end probe is higher than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe is lower than the set temperature, the compressor is started, the fan is closed, the solution pump B is started, and the solution pump A is started.
Further, when the temperature sensed by the temperature sensor TH-R1 approaches to the set temperature, and the temperature sensed by the temperature sensor TH-R2 is higher than or approaches to the set temperature, the compressor, the fan, the solution pump A and the solution pump B are turned off; when the temperature sensed by the temperature sensor TH-R1 at the cold end approaches the set temperature and the temperature sensed by the temperature sensor TH-R2 at the hot end is lower than the set temperature, the compressor and the solution pump A are started, and the fan and the solution pump B are closed.
Further, when the temperature sensed by the temperature sensor TH-R1 at the cold end is lower than the set temperature and the temperature sensed by the temperature sensor TH-R2 at the hot end is higher than or close to the set temperature, the compressor, the fan and the solution pump B are turned off, and the solution pump a is turned on; when the temperature sensed by the temperature sensor TH-R1 at the cold end is lower than the set temperature, and the temperature sensed by the temperature sensor TH-R2 at the hot end is lower than the set temperature, the compressor and the solution pump A are started, and the fan and the solution pump B are closed.
Further, when the temperature sensed by the temperature sensor TH-R1 at the cold end is lower than the set temperature and the temperature sensed by the temperature sensor TH-R2 at the hot end is higher than or close to the set temperature, the compressor, the fan and the solution pump B are turned off, and the solution pump a is turned on; when the temperature sensed by the temperature sensor TH-R1 at the cold end is lower than the set temperature, and the temperature sensed by the temperature sensor TH-R2 at the hot end is lower than the set temperature, the compressor and the fan are closed, and the solution pump B and the solution pump A are started.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention realizes synchronous cold and heat through two different heat exchange modes of forced convection heat exchange and heat conduction, has the advantages of low energy consumption and rapid temperature difference establishment, can accurately control the temperature of the probe to prevent scalding, can be conveniently cleaned and disinfected due to the adoption of the metal probe, can accurately judge the position of the diseased tooth due to the small size of the metal probe, and is convenient for a doctor to operate due to the hose connection with the probe.
2. The condenser A and the condenser B are arranged in series, and the condenser A is matched with the fan, so that the refrigeration cycle of the condenser A is realized, and meanwhile, the regulation of different heating temperatures can be provided for the hot-end cold-carrying container.
Drawings
Fig. 1 is a schematic diagram of the principle of the present invention.
In the figure: 1. a compressor; 2. a condenser A; 3. a condenser B; 4. a capillary tube; 5. an evaporator; 6. a hot end probe; 7. a cold end probe; 8. a solution pump B; 9. a high voltage switch; 10. a fan; 11. solution pump A.
Detailed Description
The technical solution of the present invention will be further described and illustrated with reference to the following examples. It should be noted that the following paragraphs may refer to terms of orientation, including but not limited to "upper, lower, left, right, front, rear" and the like, which are all based on the visual orientation shown in the drawings corresponding to the specification, and should not be construed as limiting the scope or technical aspects of the present invention, but merely as facilitating better understanding of the technical aspects of the present invention by those skilled in the art.
In the description of the present specification, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1
A dental diagnosis device with a synchronous cold and hot probe comprises a compressor 1, a condenser A2, a condenser B3, a capillary tube 4, an evaporator 5, a hot-end probe 6 and a cold-end probe 7, wherein the hot-end probe 6 forms a loop for running high-temperature solution through a solution pump A11, a pipeline, a pipe fitting and a hot-end cold carrying container, and the hot-end cold carrying container is heated through a condenser B3; the cold-end probe 7 forms a loop for running low-temperature solution through a solution pump B8, a pipeline, a pipe fitting and a cold-end cold-carrying container, and the cold-end cold-carrying container dissipates heat through the evaporator 5; the compressor 1, the condenser A2, the condenser B3 and the evaporator 5 form a loop for the operation of refrigerant through pipelines and pipe fittings; the connecting pipeline between the condenser B3 and the evaporator 5 is a capillary tube 4, and the high-pressure liquid refrigerant of the condenser B3 enters the evaporator 5 to be evaporated and absorb heat after being subjected to pressure reduction through the capillary tube 4; a fan 10 is arranged on one side of the condenser A2; cold end probe 6, hot junction probe 7, cold container are carried to the cold end, the cold container is carried to the hot junction all includes the temperature sensor who is used for the induction temperature, and temperature sensor passes through the signal of telecommunication and is connected with the controller.
Example 2
A control method for a dental diagnosis device with a synchronous cold-hot probe comprises temperature sensors TH-R2 arranged on a hot-end probe 6, a temperature sensor TH-R1 arranged on a cold-end probe 7, temperature sensors TH0-R1 arranged in a cold-end cold-carrying container and temperature sensors TH0-R2 arranged in a hot-end cold-carrying device, wherein when the temperature sensed by the temperature sensor TH-R1 of the cold-end probe 7 and/or the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 is different from a set temperature, the sensed temperature is close to the set temperature by starting one or more of a compressor 1, a fan 10, a solution pump A11 and a solution pump B8. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.
Example 3
A control method for a dental diagnostic apparatus with a synchronous cold-hot probe, wherein when the temperature sensed by a temperature sensor TH-R1 of a cold-end probe 7 is higher than a set temperature, and the temperature sensed by a temperature sensor TH-R2 of a hot-end probe 6 is higher than or close to the set temperature, a compressor 1 and a blower 10 are started, a solution pump B8 is started, and a solution pump A11 is not started; if the temperature sensed by the temperature sensor TH-R1 of the cold-end probe 7 is higher than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 is lower than the set temperature, the compressor 1 is started, the fan 10 is closed, the solution pump B8 is started, and the solution pump A11 is started; when the temperature sensed by the temperature sensor TH-R1 of the cold-end probe 7 approaches to the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 is higher than or approaches to the set temperature, the compressor 1, the fan 10, the solution pump A11 and the solution pump B8 are closed; when the temperature sensed by the temperature sensor TH-R1 of the cold-end probe 7 approaches to the set temperature and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 is lower than the set temperature, the compressor 1 and the solution pump A11 are started, and the fan 10 and the solution pump B8 are closed; when the temperature sensed by the temperature sensor TH-R1 of the cold-end probe 7 is lower than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 is higher than or close to the set temperature, the compressor 1, the fan 10 and the solution pump B8 are closed, and the solution pump A11 is started; when the temperature sensed by the temperature sensor TH-R1 of the cold end probe 7 is lower than the set temperature and the temperature sensed by the temperature sensor TH-R2 of the hot end probe 6 is lower than the set temperature, the compressor 1 and the solution pump A11 are started, and the fan 10 and the solution pump B8 are closed; when the temperature sensed by the temperature sensor TH-R1 of the cold end probe 7 is lower than the set temperature and the temperature sensed by the temperature sensor TH-R2 of the hot end probe 6 is higher than or close to the set temperature, the compressor 1, the fan 10 and the solution pump B8 are closed, and the solution pump A11 is started; when the temperature sensed by the temperature sensor TH-R1 of the cold-end probe 7 is lower than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 is lower than the set temperature, the compressor 1 and the fan 10 are closed, and the solution pump B8 and the solution pump A11 are started. The structure and connection relationship of the rest parts are the same as those described in any of the foregoing embodiments, and are not described herein again to avoid the tedious text.
On the basis of the above embodiments, the present invention continues to describe the technical features and functions of the technical features in the present invention in detail to help those skilled in the art fully understand the technical solutions of the present invention and reproduce them.
As shown in figure 1, the invention comprises a hot end probe 6 and a cold end probe 7, wherein the hot end probe 6 and a hot end cold carrying container form a loop for high temperature solution operation through a pipeline and a solution pump A11, and a temperature sensor TH for sensing temperature is arranged inside the hot end cold carrying container0The hot end probe 6 is provided with a temperature sensor TH-R2 used for sensing the temperature of the hot end, the hot end cold carrying container can absorb the heat emitted by the condenser B3, so that the temperature of the high-temperature solution in the hot end cold carrying container is increased, the temperature of the hot end probe 6 can be increased through the solution pump A11, the temperature of the hot end probe 6 acting on the oral cavity of the human body is preferably the temperature which can be actually born by the patient, and the temperature range of 40-70 ℃ can be achieved in clinic.
In the invention, the cold-end probe 7 and the cold-end cold-carrying container form a loop for the operation of the low-temperature solution through a pipeline and a solution pump B8, and a temperature sensor TH for sensing temperature is arranged in the cold-end cold-carrying container0R1, a temperature sensor TH-R1 for sensing the cold end temperature being provided at the cold end probe 7. The cold-side cold-carrying container can be heated by the evaporator 5, which in turn causes the temperature of the cryogenic solution inside to decrease, at solution pump B8Interaction of the cold-end probe 7 and low-temperature solution in the cold-end cold-carrying container is realized under the action, and then the temperature of the cold-end probe 7 is reduced.
In the invention, the temperature of the cold-end probe 7 and the hot-end probe 6 can be set in the controller, and the temperature of the hot-end probe 6 and the cold-end probe 7 can be closed to the set temperature through the cooperation of the compressor 1, the fan 10, the solution pump A11 and the solution pump B8 according to the relationship between the temperature of the hot-end probe 6 and the cold-end probe 7 sensed by the temperature sensors TH-R2 and TH-R1 and the set temperature. In the invention, the temperature sensor TH arranged in the cold-end cold carrier0-R1, temperature sensor TH arranged in hot end cold carrier0The purpose of R2 is to assist the controller in regulating the temperature of cold end probe 7 and hot end probe 6, via temperature sensor TH0-R1, temperature sensor TH0R2 to determine whether to turn on the corresponding solution pump to achieve the corresponding probe temperature increase or decrease.
For example, when the temperature sensed by the temperature sensors TH-R1 at the cold end probe 7 is higher than the set temperature, and at this time, if the temperature of the hot end probe 6 sensed by the temperature sensors TH-R2 is higher than or close to the set temperature, the compressor 1 is turned on, and simultaneously, the fan 10 is started to carry out forced refrigeration, so that high-temperature and high-pressure gas generated by the compressor 1 is subjected to forced refrigeration by the condenser A2 and the fan 10 to dissipate most of heat, the high-temperature and high-pressure gas passes through the condenser B3 to have small effect on the high-temperature solution in the hot-end cold carrying container, the temperature rise of the high-temperature solution in the hot-end cold carrying container is not obvious, without the solution pump a11 turned on, the temperature of the warm end probe 6 would slowly decrease to or stay close to the set temperature, and the evaporator 5 would still operate normally to lower the temperature of the cryogenic solution in the cold carrier (i.e., at this time, the temperature sensor TH).0The temperature detected by R1 is lower than the temperature detected by temperature sensor TH-R1 on cold-end probe 7), the temperature of cold-end probe 7 is lowered to around the set temperature by solution pump B8.
When the temperature of the cold end probe 7 is sensed by the temperature sensor TH-R1 and approaches the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot end probe 6 is higher than the set temperature, the temperature of the cold end probe 7 is not obviously increased by turning off the compressor 1, the fan 10, the solution pump B8 and the solution pump a11, and the temperature of the hot end probe 6 is reduced at room temperature until the temperatures of the cold end probe and the hot end probe approach the set temperature. When the temperature of the cold-end probe 7 is sensed by the temperature sensor TH-R1 and approaches to the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 is lower than the set temperature, the hot-end probe 6 needs to be heated, at this time, the compressor 1 needs to be started, the fan 10 is turned off, the high-temperature and high-pressure gas of the compressor 1 is radiated through the condenser a2 and the condenser B3, the high-temperature solution in the hot-end cold-carrying container at the position of the condenser B3 is heated, the high-temperature solution circulation between the hot-end cold-carrying container and the hot-end probe 6 is realized by starting the solution pump a11, and then the temperature of the hot-end probe 6 is increased until the temperature sensed by the temperature sensor TH-R2 of the hot-end probe 6 approaches to the set value.
On the basis of the above principle, those skilled in the art can implement flexible adjustment according to the control modes described in embodiments 2 and 3, when there is a difference between the temperature detected by the temperature sensors TH-R2 at the hot-end probe 6 and the temperature detected by the temperature sensors TH-R1 at the cold-end probe 7 and the set temperature value, the difference may be that the detected temperature approaches the set temperature, the detected temperature is higher than the set temperature, and the detected temperature is lower than the set temperature, and the adjustment of the temperature difference is implemented by turning on the compressor 1, the fan 10, the solution pump B8, and the solution pump a11 in combination.
Finally, although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description of the present description is for clarity reasons only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims (7)
1. A dental diagnosis device with a synchronous cold and hot probe is characterized in that: the device comprises a compressor (1), a condenser A (2), a condenser B (3), a capillary tube (4), an evaporator (5), a hot end probe (6) and a cold end probe (7), wherein the hot end probe (6) forms a loop for high-temperature solution operation with a hot end cold carrying container through a solution pump A (11), a pipeline, a pipe fitting and the hot end cold carrying container, and the hot end cold carrying container is heated through the condenser B (3); the cold end probe (7) forms a loop for running low-temperature solution through a solution pump B (8), a pipeline, a pipe fitting and a cold end cold-carrying container, and the cold end cold-carrying container is refrigerated through an evaporator (5); the compressor (1) forms a loop for a refrigerant to run with the condenser A (2), the condenser B (3) and the evaporator (5) through a pipeline and a pipe fitting; a connecting pipeline between the condenser B (3) and the evaporator (5) is a capillary tube (4), and a high-pressure liquid refrigerant of the condenser B (3) enters the evaporator (5) to be evaporated and absorb heat after being subjected to pressure reduction through the capillary tube (4); and a fan (10) is arranged on one side of the condenser A (2).
2. A dental diagnostic apparatus with a synchronized cold and heat probe according to claim 1, wherein: the cold end probe (7), the hot end probe (6), the cold end cold carrying container and the hot end cold carrying container respectively comprise temperature sensors for sensing temperature, and the temperature sensors are connected with the controller through electric signals.
3. A dental diagnostic apparatus with a synchronized cold and heat probe according to claim 2, wherein: the temperature range of the hot end probe (6) is 40-70 ℃; the temperature range of the cold end probe (7) is-10 ℃ to 10 ℃.
4. A method for controlling a dental diagnostic apparatus with a synchronized cold and heat probe according to any of claims 1 to 3, comprising: the temperature sensor in the dental diagnosis device with the synchronous cold and hot probe comprises a temperature sensor TH-R2 arranged on a hot end probe (6), a temperature sensor TH-R1 arranged on a cold end probe (7), a cold carrier arranged in a cold end containerTemperature sensor TH0-R1, temperature sensor TH in the hot side cold carrier0-R2, temperature sensor TH-R2, temperature sensor TH-R1, temperature sensor TH0-R1 and temperature sensor TH0The R2 is communicated with the controller through electric signals, and when the temperature of the cold-end probe (7) sensed by the temperature sensor TH-R1 communicated with the controller and/or the temperature of the hot-end probe (6) sensed by the temperature sensor TH-R2 is different from the set temperature, the controller starts one or more of the compressor (1), the fan (10), the solution pump A (11) and the solution pump B (8) to realize that the sensed temperature approaches the set temperature.
5. The control method according to claim 4, characterized in that: when the temperature sensed by the temperature sensor TH-R1 of the cold-end probe (7) is higher than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe (6) is higher than or close to the set temperature, the compressor (1) and the fan (10) are started, the solution pump B (8) is started, and the solution pump A (11) is not started; if the temperature sensed by the temperature sensor TH-R1 of the cold end probe (7) is higher than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot end probe (6) is lower than the set temperature, the compressor (1) is started, the fan (10) is closed, the solution pump B (8) is started, and the solution pump A (11) is started.
6. The control method according to claim 4, characterized in that: when the temperature sensed by the temperature sensor TH-R1 of the cold end probe (7) is close to the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot end probe (6) is higher than or close to the set temperature, the compressor (1), the fan (10), the solution pump A (11) and the solution pump B (8) are closed; when the temperature sensed by the temperature sensor TH-R1 of the cold-end probe (7) approaches to the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot-end probe (6) is lower than the set temperature, the compressor (1) and the solution pump A (11) are started, and the fan (10) and the solution pump B (8) are closed.
7. The control method according to claim 4, characterized in that: when the temperature sensed by the temperature sensor TH-R1 of the cold end probe (7) is lower than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot end probe (6) is higher than or close to the set temperature, the compressor (1), the fan (10) and the solution pump B (8) are closed, and the solution pump A (11) is started; when the temperature sensed by the temperature sensor TH-R1 of the cold end probe (7) is lower than the set temperature, and the temperature sensed by the temperature sensor TH-R2 of the hot end probe (6) is lower than the set temperature, the compressor (1) and the solution pump A (11) are started, and the fan (10) and the solution pump B (8) are closed.
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4350488A (en) * | 1981-06-29 | 1982-09-21 | Davis Laurance B | Dental pulp tester |
| CN202548025U (en) * | 2012-04-27 | 2012-11-21 | 中国人民解放军第四军医大学口腔医院 | Cold-hot fatigue tester of dental material |
| CN104921833A (en) * | 2014-03-21 | 2015-09-23 | 李世俊 | Dental instrument system with sensor |
| CN104173113A (en) * | 2014-09-18 | 2014-12-03 | 张晓飞 | Pulp vitality temperature detector |
| CN109549736B (en) * | 2018-10-25 | 2021-08-20 | 中国科学院理化技术研究所 | Pulp vitality detection instrument |
| CN210121190U (en) * | 2019-05-27 | 2020-03-03 | 南永平 | Pen type dentist tooth cold and hot tester |
| CN210250144U (en) * | 2019-05-27 | 2020-04-07 | 南永平 | Cold and hot test ware of seat formula dentist with tooth |
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