CN216063790U - Medical centrifuge rotational speed, temperature-detecting device - Google Patents
Medical centrifuge rotational speed, temperature-detecting device Download PDFInfo
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- CN216063790U CN216063790U CN202121937323.5U CN202121937323U CN216063790U CN 216063790 U CN216063790 U CN 216063790U CN 202121937323 U CN202121937323 U CN 202121937323U CN 216063790 U CN216063790 U CN 216063790U
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Abstract
The utility model discloses a medical centrifuge rotating speed and temperature detection device, which structurally comprises: the device comprises a rotating speed measuring module, a temperature measuring module, a controller arranged in a shell, a charging interface arranged on one side panel of the shell, a power switch, an optical fiber adapter and a temperature sensor adapter; the utility model adopts the optical fiber sensing technology to realize the measurement of the rotating speed of the medical centrifuge, the PT100 temperature sensor realizes the measurement of the temperature in the cavity of the medical centrifuge, and the utility model is suitable for the medical centrifuge with the angle rotor and the horizontal rotor, has simple and understandable equipment operation, small volume and light weight, is convenient to carry to the site for verification and calibration, and has certain practicability and innovation.
Description
Technical Field
The utility model relates to the technical field of medical centrifuge detection, in particular to a device for detecting the rotating speed and the temperature of a medical centrifuge.
Background
The centrifuge mainly has the functions of separation and purification, so that different materials to be separated can be separated in an accelerated way.
In selecting a centrifuge, it is generally determined from rotational speed, need for temperature control (with or without refrigeration), rotor capacity, etc. The method can be divided into a low-speed centrifuge and a high-speed centrifuge according to different rotating speeds, wherein the highest rotating speed of the low-speed centrifuge is lower than 10000rpm/min, and the highest rotating speed of the high-speed centrifuge is 10000rpm/min-30000 rpm/min; the temperature in the centrifugal cavity is not required to be controlled according to the requirement, and a freezing centrifugal machine or a non-freezing centrifugal machine can be selected; the so-called rotor capacity, i.e. the number of centrifuge tubes (centrifuge vessel) per centrifuge tube capacity.
The rotor is the main accessory of centrifuge, and it is simple to say, can divide into host computer and detachable rotor (turn) two parts with centrifuge, and a multi-functional host computer can join in marriage a plurality of rotors usually, satisfies different needs and realizes its "multi-functional" by the rotor of different models. The usual rotors are mainly angular and horizontal, angular: the centrifugal tube and the rotating shaft form a fixed angle, and the sample concentrates the sediment on the bottom of the centrifugal tube and the side wall close to the bottom; a horizontal rotor: when the horizontal rotor is static, the central line of the centrifugal tube in the rotor is parallel to the rotating shaft, the central line gradually transits from the parallel position to the position which is close to the vertical position with the rotating shaft during the acceleration rotation, the central line of the centrifugal tube gradually tends to the parallel position from the position which is close to the vertical position with the rotating shaft during the deceleration, and the sample is concentrated on the bottom of the centrifugal tube by precipitation.
In summary, the detection of the rotation speed and the temperature of the medical centrifuge is the main parameter for evaluating the performance of the medical centrifuge. At present, the standard specification for detecting the medical centrifugal machine is not available, the technical scheme of the traditional patent No. ZL201921825766.8 detection device for the medical centrifugal machine is considered, the mode of simulating a centrifugal tube is mainly adopted, a wireless detection device is designed, the device is used for manufacturing the detection device into a centrifugal tube structure, and the centrifugal tube structure participates in the whole process of operation of the centrifugal machine to detect the rotating speed and the temperature. Then, among the actual testing process, because not all centrifuging tube central lines keep parallel with the rotation axis always, common angle rotor and pivot become a fixed angle, and the rotatory in-process gesture of horizontal rotor changes bigger, and under this condition, the technical scheme of simulation centrifuge tube structure is when implementing, can not guarantee to catch rotational speed signal completely, and secondly the size of centrifuging tube is also more, can not guarantee like this that detection device can adapt to the medical centrifuge of different rotor capacities.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a device for detecting the rotating speed and the temperature of a medical centrifuge, which adopts an optical fiber sensing technology to realize the measurement of the rotating speed of the medical centrifuge, adopts a PT100 temperature sensor to realize the measurement of the temperature in a cavity of the medical centrifuge and meets the detection requirements of the medical centrifuges with different rotor models.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a medical centrifuge rotating speed and temperature detection device, which structurally comprises: the device comprises a rotating speed measuring module, a temperature measuring module, a controller arranged in a shell, a charging interface arranged on one side panel of the shell, a power switch, an optical fiber adapter and a temperature sensor adapter; the rotating speed measuring module is used for measuring the rotating speed of the rotor of the medical centrifuge to be measured; the temperature measuring module is used for measuring the temperature in the cavity of the medical centrifuge to be measured and is electrically connected with the temperature sensor joint; the controller is responsible for the work of the whole device and is electrically connected with the rotating speed measuring module, the charging interface, the power switch and the temperature sensor joint.
The rotating speed measuring module mainly comprises an optical fiber sensor and an optical fiber amplifier, wherein the optical fiber sensor converts the light intensity state of an induction bar arranged on the medical centrifuge rotor into a measurable optical signal, the measurable optical signal is converted into an electric signal by further connecting a light guide optical fiber with the optical fiber amplifier, the electric signal is further used as an input signal of the controller, and finally the rotating speed and the temperature are displayed by a touch screen;
specifically, the model of the optical fiber sensor is FU-35TZ, and the model of the optical fiber amplifier is FS-N41N.
The rotating speed measuring module further comprises an induction strip, the induction strip is a black or white reflective sticker, and the induction strip with large color contrast is selected according to the color of the rotor of the tested centrifugal machine.
The temperature measuring module mainly comprises a temperature sensor with a metal protective shell, the model of which is PT 100.
The temperature sensor joint adopts a three-core quick plug for connecting a temperature measuring module.
The optical fiber amplifier is arranged in the shell, and is also provided with an operation setting interface which is arranged on the other side panel of the shell.
The optical fiber adapter is used for connecting the light guide optical fiber of the optical fiber sensor.
The controller comprises a microprocessor module, a touch screen module and a power management module, wherein the touch screen module is used for displaying a rotating speed and a temperature value, and is also provided with an enabling key; the power supply management module comprises a lithium battery charging circuit consisting of a 12V lithium battery with 3000mAh, a TP4056 charging chip and a power supply conversion circuit consisting of SP 6203; the microprocessor module mainly comprises a processor with the model number of STM32F103C8T6, and is electrically connected with the touch screen module and the power management module;
furthermore, an enable key of the touch screen module is pressed, the microprocessor module receives an enable command, starts to collect electric signals of the rotating speed measuring module and the temperature measuring module, and displays numerical values on the touch screen module after processing.
The utility model provides a device for detecting the rotating speed and the temperature of a medical centrifugal machine, which adopts an optical fiber sensor to convert the light intensity change into a measurable light signal, converts the measurable light signal into an electric signal which can be received by a microprocessor module through an optical fiber amplifier, synchronously measures the temperature change in a cavity of the measured medical centrifugal machine, obtains the rotating speed and the temperature characteristic index of the measured medical centrifugal machine through the processing of the microprocessor module, is suitable for the medical centrifugal machine with an angle rotor and a horizontal rotor, has simple and easy operation, small volume and light weight, is convenient to carry to the site for verification and calibration, and has certain practicability and innovativeness.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a functional block diagram of the present invention;
fig. 2 is a schematic structural diagram of the present invention.
In fig. 1: 1. a rotation speed measuring module; 2. a controller; 3. an optical fiber sensor; 4. an optical fiber amplifier; 5. a resistance voltage division conditioning circuit; 6. a temperature measurement module; 7. a signal amplification circuit; 8. a power management module; 9. a microprocessor module; 10. a touch screen module;
in fig. 2: 11. a housing; 12. a charging interface; 13. an optical fiber; 14. an optical fiber adapter; 15. a temperature sensor junction; 16. a power switch; 17. and operating a setting interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the device for detecting the rotational speed and the temperature of the medical centrifuge in the present embodiment structurally includes: the device comprises a rotating speed measuring module 1, a temperature measuring module 6, a controller 2 arranged in a machine shell 11, a charging interface 12 arranged on a side panel of the machine shell 11, a power switch 16, an optical fiber adapter 14 and a temperature sensor adapter 15; the rotating speed measuring module 1 is used for measuring the rotating speed of the rotor of the medical centrifuge to be measured; the temperature measuring module 6 is used for measuring the temperature in the cavity of the medical centrifuge to be measured and is electrically connected with the temperature sensor connector 15; the controller 2 is responsible for the whole device to work and is electrically connected with the rotating speed measuring module 1, the charging interface 12, the power switch 16 and the temperature sensor joint 15.
As shown in fig. 1, in the device for detecting the rotational speed and the temperature of the medical centrifuge in the present embodiment, the rotational speed measuring module 1 mainly includes an optical fiber sensor 3 and an optical fiber amplifier 4, and specifically includes the optical fiber sensor 3 with model number FU-35FZ and the optical fiber amplifier 4 with model number FS-N41N, which are connected by an optical fiber 13 to complete the detection of the light intensity state.
As shown in fig. 2, in the device for detecting the rotational speed and the temperature of the medical centrifuge in the present embodiment, the temperature measuring module 6 mainly includes a PI100 temperature sensor.
As shown in fig. 1 and 2, in the device for detecting the rotational speed and the temperature of the medical centrifuge in the present embodiment, an optical fiber sensor 3 converts a light intensity change of a detected sensing strip into a measurable optical signal, and converts the measurable optical signal into an electrical signal through an optical fiber amplifier 4, wherein the electrical signal is a 12V voltage signal, the conversion from the 12V electrical signal to a 3.3V electrical signal is completed through a resistance voltage division conditioning circuit 5, and the electrical signal is connected to an input end of a microprocessor module 9; meanwhile, the temperature measuring module 6 converts the temperature signal into an electrical signal, and the electrical signal is conditioned by a signal amplifying circuit 7 consisting of an OPA333 and is used as an input signal of the microprocessor module 9.
As shown in fig. 1, in the device for detecting the rotational speed and the temperature of the medical centrifuge in the present embodiment, the controller 2 includes a microprocessor module 9, a touch screen module 10 and a power management module 8, the touch screen module 10 is configured to display the rotational speed and the temperature value, and the touch screen module 10 is further provided with an enable button; the power management module 8 comprises a lithium battery charging circuit consisting of a 12V and 3000mAh lithium battery, a TP4056 charging chip and a power conversion circuit consisting of SP 6203; the microprocessor module 9 mainly comprises a processor with the model number of STM32F103C8T6, and is electrically connected with the touch screen module 10 and the power management module 8.
As shown in figures 1 and 2, the novel medical centrifuge rotating speed and temperature detection device for practical use further comprises an induction strip during rotating speed detection experiments, wherein the induction strip is a black or white light-reflecting adhesive paper strip, and the induction strip with large color contrast is selected according to the color of a rotor of a tested centrifuge.
During the experiment: for the angle rotor medical centrifuge, the induction strip is attached to the top surface of the angle rotor, and for the horizontal rotor medical centrifuge, the induction strip is attached to the position right above the cross beam on the top surface of the horizontal rotor; the optical fiber sensor 3 is adhered to the cover of the medical centrifuge to be detected through glue, so that the probe of the optical fiber sensor 3 is ensured to face the induction strip.
Specifically, according to the specification of the medical centrifuge to be measured, the operation is started, after the preheating reaches a stable state, the enabling device on the touch screen module 10 is pressed, the microprocessor module 9 works, and the indication value recording of the rotating speed and the temperature is carried out through the touch screen module 10.
Further, when the rotating speed is detected, the controller 2 records the working state of the medical centrifugal machine to be detected through the optical fiber amplifier 4, the optical fiber sensor 3 receives the light intensity change state of the induction strip in each period, and the rotating speed is measured through recording the change frequency.
As shown in fig. 1 and 2, when the novel medical centrifuge rotating speed and temperature detection device is used for detection, the temperature sensor module is attached to the inner wall of the medical centrifuge cavity to be detected through glue, the work flow of the medical centrifuge is repeated, and the controller 2 collects the temperature and displays the temperature through the touch screen module 10.
Claims (9)
1. The utility model provides a medical centrifuge rotational speed, temperature-detecting device which characterized in that structurally includes: the device comprises a rotating speed measuring module, a temperature measuring module, a controller arranged in a shell, a charging interface arranged on one side panel of the shell, a power switch, an optical fiber adapter and a temperature sensor adapter; the rotating speed measuring module is used for measuring the rotating speed of the rotor of the medical centrifuge to be measured; the temperature measuring module is used for measuring the temperature in the cavity of the medical centrifuge to be measured and is electrically connected with the temperature sensor joint; the controller is responsible for the work of the whole device and is electrically connected with the rotating speed measuring module, the charging interface, the power switch and the temperature sensor joint.
2. The device for detecting the rotating speed and the temperature of the medical centrifuge as claimed in claim 1, wherein the rotating speed measuring module mainly comprises an optical fiber sensor and an optical fiber amplifier, the optical fiber sensor converts the light intensity state of the sensor strip arranged on the rotor of the medical centrifuge into a measurable optical signal, the optical fiber sensor is further connected with the optical fiber amplifier through a light guide optical fiber to convert the measurable optical signal into an electrical signal, the electrical signal is further used as an input signal of the controller, and finally the rotating speed and the temperature are displayed through a touch screen.
3. The device for detecting the rotating speed and the temperature of the medical centrifuge as claimed in claim 2, wherein the optical fiber sensor is FU-35TZ, the optical fiber amplifier is FS-N41N, and the optical fiber sensor and the optical fiber amplifier are connected through an optical fiber.
4. The device for detecting the rotating speed and the temperature of the medical centrifuge as claimed in claim 2, wherein the induction strip is a black or white reflecting sticker, and the induction strip with large color contrast is selected according to the color of the rotor of the centrifuge to be detected.
5. The device for detecting the rotating speed and the temperature of the medical centrifuge as claimed in claim 1, wherein the temperature measuring module mainly comprises a temperature sensor with a metal protective shell of type PT 100.
6. The device for detecting the rotating speed and the temperature of the medical centrifuge as claimed in claim 1, wherein the temperature sensor joint adopts a three-core quick plug for connecting with the temperature measuring module.
7. The device for detecting the rotation speed and the temperature of the medical centrifuge as claimed in claim 2, wherein the optical fiber amplifier is disposed inside the housing, and the optical fiber amplifier is further provided with an operation setting interface disposed on the other side panel of the housing.
8. The device for detecting the rotating speed and the temperature of the medical centrifuge as claimed in claim 2, wherein the optical fiber sensor is connected with an optical fiber adapter arranged on the housing through a light guide optical fiber.
9. The device for detecting the rotating speed and the temperature of the medical centrifuge as claimed in claim 1, wherein the controller comprises a microprocessor module, a touch screen module and a power management module, the touch screen module is used for displaying the rotating speed and the temperature value, and the touch screen module is further provided with an enabling button; the power supply management module comprises a lithium battery charging circuit consisting of a 12V lithium battery with 3000mAh, a TP4056 charging chip and a power supply conversion circuit consisting of SP 6203; the microprocessor module mainly comprises a processor with the model number of STM32F103C8T6, and is electrically connected with the touch screen module and the power management module;
furthermore, an enabling key is pressed, the microprocessor module receives an enabling command, starts to collect electric signals of the rotating speed measuring module and the temperature measuring module, and displays numerical values on the touch screen module after processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121937323.5U CN216063790U (en) | 2021-08-18 | 2021-08-18 | Medical centrifuge rotational speed, temperature-detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121937323.5U CN216063790U (en) | 2021-08-18 | 2021-08-18 | Medical centrifuge rotational speed, temperature-detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216063790U true CN216063790U (en) | 2022-03-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121937323.5U Active CN216063790U (en) | 2021-08-18 | 2021-08-18 | Medical centrifuge rotational speed, temperature-detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216063790U (en) |
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2021
- 2021-08-18 CN CN202121937323.5U patent/CN216063790U/en active Active
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