CN203629712U - Temperature calibration system of steam sterilizer - Google Patents
Temperature calibration system of steam sterilizer Download PDFInfo
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- CN203629712U CN203629712U CN201320732272.1U CN201320732272U CN203629712U CN 203629712 U CN203629712 U CN 203629712U CN 201320732272 U CN201320732272 U CN 201320732272U CN 203629712 U CN203629712 U CN 203629712U
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- steam sterilizer
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Abstract
The utility model provides a temperature calibration system of a steam sterilizer. The temperature calibration system is characterized by comprising a temperature sensor, a signal conversion circuit, a signal amplification circuit, a signal filter circuit, an analog-to-digital converting circuit, a single-chip microcomputer and a communication module, wherein the temperature sensor is connected with the single-chip microcomputer successively through the signal conversion circuit, the signal amplification circuit, the signal filter circuit and the analog-to-digital converting circuit, and the single-chip microcomputer is connected with the communication module. The temperature calibration system of the steam sterilizer has the advantages including high measuring accuracy, low cost and simple data processing. The calibration system can be also applied to calibrating the temperature periods of other kinds of high-temperature sterilization devices to trace the measured values.
Description
Technical field
The utility model relates to sterilizer temperature measurement technology field, particularly a kind of steam sterilizer temperature calibration system.
Background technology
At numerous medical treatment, pharmacy corporation, high-pressure sterilizing pot is widely used as a kind of sterilization equipment.In order to guarantee the quality of sterilization, Europe, the United States and other developed countries have worked out strict examination criteria to high-pressure sterilizing pot, and requirement must regularly be calibrated autoclaving equipment, to guarantee effect and the quality of sterilization.Compare with developed country standard with European Union standard, the operation of China to high-pressure sterilizing pot, the present situation of calibration situation allow of no optimist.
In recent years, along with all kinds of sterilization equipment is universal rapidly in medical treatment and pharmacy enterprise, relevant detection, calibration means also must be improved, be improved in domestic each measurement and calibration mechanism gradually to meet client's calibration requirements.Because China lacks the calibrating standard for high-pressure sterilizing pot temperature parameter at present, each measurement unit is very big for calibration steps and the standard set-up difference of high-pressure sterilizing pot, very easily causes the disunity of calibration result.
In actual disinfecting action, many operating personnel just, using the temperature value of autoclave self-temperature meter indication as foundation, judge whether to have reached to sterilising temp.But the thermometer that autoclave carries is owing to lacking regular calibration, and value cannot be traced to the source, in long-term use very likely there is drift in thermometer, for sterilization effect has been buried major hidden danger.And the temperature spot at the thermometer that autoclave carries a monitoring sensor place, cannot consider the homogeneity of whole temperature environment in autoclave and treat the thermal break-through power of disinfection equipment, and this is with regard to the as easy as rolling off a log judgement error having caused sterilization effect and sterilization time.The utility model, by a kind of novel steam sterilizer temperature calibration system, is realized the calibration to steam sterilizer temperature parameter.
Utility model content
The purpose of this utility model is the calibration in order to solve steam sterilizer, and for gage work provides technical guarantee, spy provides a kind of steam sterilizer temperature calibration system.
The utility model provides a kind of steam sterilizer temperature calibration system, it is characterized in that: described steam sterilizer temperature calibration system comprises temperature sensor 1, signaling conversion circuit 2, signal amplification circuit 3, signal filter circuit 4, mould/number conversion circuit 5, single-chip microcomputer 6, communication module 7;
Wherein: temperature sensor 1 is connected with single-chip microcomputer 6 by signaling conversion circuit 2, signal amplification circuit 3, signal filter circuit 4, mould/number conversion circuit 5 successively; Single-chip microcomputer 6 is connected with communication module 7.
Described temperature sensor 1 is thermistor, and the measurement range of its temperature can reach 0 ℃～150 ℃, and precision can reach 0.5 ℃.
Described communication module 7 receives data by USB interface or bluetooth approach.
Steam sterilizing be a kind of reliable, economical, fast, do not leave over toxicity and use safe sterilizing methods, usable range is wide.Steam sterilizing should, by article characteristic, guarantee to select proper temperature to carry out in the situation of being without prejudice.Conventional working temperature is 115 ℃, 121 ℃, 126 ℃.The temperature measurement range of thermistor can meet the working temperature requirement of steam sterilizer, and is suitable for measuring faint temperature variation and temperature difference, so select thermistor as temperature sensor in design.
Convert the temperature signal of steam sterilizer to electric signal by temperature sensor, because these electric signal are generally fainter, signal amplitude is less, need to signal be amplified through signal conditioning circuit, the effect of signal processing is exactly to convert the different output signal types of sensor to desirable signal form, so that show, record, process and control.Then deliver to single-chip microcomputer master chip through mould/number conversion, so just can measure by communication module the actual temperature of steam sterilizer.
Steam sterilizer temperature calibration system can gather the sterilising temp information of 8 passages simultaneously, temperature test can ensuring coverage steam sterilizer the position of inner all directions, make sterilizing effect monitoring result more reliable.
Temperature survey adopts the signaling conversion circuit of Huygens electric bridge,, add signal amplification circuit, filtering circuit after temperature measurement accuracy can reach 0.1%, the accuracy of detection system and reliability are greatly improved.
Between multichannel temperature sensor and steam sterilizer test special purpose interface, use general aviation plug to connect, used the multiple moist measure that prevents under pressure environment.And after sensor damages, be very easy to change.
In order to measure the homogeneity of steam sterilizing actuator temperature, steam sterilizer temperature calibration system is placed in equipment operating room in the alignment surface of three of upper, middle and lower, totally 9 test points, using the position of middle level central point as the actual temperature value of steam sterilizer, and the distance of each test point and operating room's inwall is not less than 1/10 of each length of side.
Advantage of the present utility model:
Steam sterilizer temperature calibration system described in the utility model has the plurality of advantages such as accuracy of measurement is high, with low cost, data processing is easy.This calibration system is applicable to the temperature cycle calibration of other kinds high-temperature sterilization equipment too, realizes accurately tracing to the source of value, has greatly improved the efficiency of calibration operation.
Accompanying drawing explanation
Below in conjunction with drawings and the embodiments, the utility model is described in further detail:
Fig. 1 is steam sterilizer temperature calibration system theory structure schematic diagram.
Embodiment
The purpose of this utility model is the calibration in order to solve steam sterilizer, and for gage work provides technical guarantee, spy provides a kind of steam sterilizer temperature calibration system.
The utility model provides a kind of steam sterilizer temperature calibration system, it is characterized in that: described steam sterilizer temperature calibration system comprises temperature sensor 1, signaling conversion circuit 2, signal amplification circuit 3, signal filter circuit 4, mould/number conversion circuit 5, single-chip microcomputer 6, communication module 7;
Wherein: temperature sensor 1 is connected with single-chip microcomputer 6 by signaling conversion circuit 2, signal amplification circuit 3, signal filter circuit 4, mould/number conversion circuit 5 successively; Single-chip microcomputer 6 is connected with communication module 7.
Described temperature sensor 1 is thermistor, and the measurement range of its temperature can reach 0 ℃～150 ℃, and precision can reach 0.5 ℃.
Described communication module 7 receives data by USB interface or bluetooth approach.
Steam sterilizing be a kind of reliable, economical, fast, do not leave over toxicity and use safe sterilizing methods, usable range is wide.Steam sterilizing should, by article characteristic, guarantee to select proper temperature to carry out in the situation of being without prejudice.Conventional working temperature is 115 ℃, 121 ℃, 126 ℃.The temperature measurement range of thermistor can meet the working temperature requirement of steam sterilizer, and is suitable for measuring faint temperature variation and temperature difference, so select thermistor as temperature sensor in design.
Convert the temperature signal of steam sterilizer to electric signal by temperature sensor, because these electric signal are generally fainter, signal amplitude is less, need to signal be amplified through signal conditioning circuit, the effect of signal processing is exactly to convert the different output signal types of sensor to desirable signal form, so that show, record, process and control.Then deliver to single-chip microcomputer master chip through mould/number conversion, so just can measure by communication module the actual temperature of steam sterilizer.
Steam sterilizer temperature calibration system can gather the sterilising temp information of 8 passages simultaneously, temperature test can ensuring coverage steam sterilizer the position of inner all directions, make sterilizing effect monitoring result more reliable.
Temperature survey adopts the signaling conversion circuit of Huygens electric bridge,, add signal amplification circuit, filtering circuit after temperature measurement accuracy can reach 0.1%, the accuracy of detection system and reliability are greatly improved.
Between multichannel temperature sensor and steam sterilizer test special purpose interface, use general aviation plug to connect, used the multiple moist measure that prevents under pressure environment.And after sensor damages, be very easy to change.
In order to measure the homogeneity of steam sterilizing actuator temperature, steam sterilizer temperature calibration system is placed in equipment operating room in the alignment surface of three of upper, middle and lower, totally 9 test points, using the position of middle level central point as the actual temperature value of steam sterilizer, and the distance of each test point and operating room's inwall is not less than 1/10 of each length of side.
Advantage of the present utility model:
Steam sterilizer temperature calibration system described in the utility model has the plurality of advantages such as accuracy of measurement is high, with low cost, data processing is easy.This calibration system is applicable to the temperature cycle calibration of other kinds high-temperature sterilization equipment too, realizes accurately tracing to the source of value, has greatly improved the efficiency of calibration operation.
Claims (3)
1. a steam sterilizer temperature calibration system, it is characterized in that: described steam sterilizer temperature calibration system comprises temperature sensor (1), signaling conversion circuit (2), signal amplification circuit (3), signal filter circuit (4), mould/number conversion circuit (5), single-chip microcomputer (6), communication module (7); Wherein: temperature sensor (1) is connected with single-chip microcomputer (6) by signaling conversion circuit (2), signal amplification circuit (3), signal filter circuit (4), mould/number conversion circuit (5) successively; Single-chip microcomputer (6) is connected with communication module (7).
2. according to steam sterilizer temperature calibration system claimed in claim 1, it is characterized in that: described temperature sensor (1) is thermistor, and the measurement range of its temperature can reach 0 ℃～150 ℃, and precision can reach 0.5 ℃.
3. according to steam sterilizer temperature calibration system claimed in claim 1, it is characterized in that:
Described communication module (7) receives data by USB interface or bluetooth approach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732272.1U CN203629712U (en) | 2013-11-19 | 2013-11-19 | Temperature calibration system of steam sterilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732272.1U CN203629712U (en) | 2013-11-19 | 2013-11-19 | Temperature calibration system of steam sterilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629712U true CN203629712U (en) | 2014-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320732272.1U Expired - Fee Related CN203629712U (en) | 2013-11-19 | 2013-11-19 | Temperature calibration system of steam sterilizer |
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| CN (1) | CN203629712U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048775A (en) * | 2014-06-25 | 2014-09-17 | 上海理工大学 | Medical glass bottle sterilization temperature detection system |
| CN105203220A (en) * | 2015-10-29 | 2015-12-30 | 大庆市日上仪器制造有限公司 | Saturated vapor pressure constant temperature alarm device |
| CN110411607A (en) * | 2019-07-15 | 2019-11-05 | 山东新华医疗器械股份有限公司 | The multiple spot method of calibration of sterilizer temperature sensor |
| CN111166157A (en) * | 2018-11-13 | 2020-05-19 | 宁波方太厨具有限公司 | Steam box and cleaning method thereof |
-
2013
- 2013-11-19 CN CN201320732272.1U patent/CN203629712U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104048775A (en) * | 2014-06-25 | 2014-09-17 | 上海理工大学 | Medical glass bottle sterilization temperature detection system |
| CN105203220A (en) * | 2015-10-29 | 2015-12-30 | 大庆市日上仪器制造有限公司 | Saturated vapor pressure constant temperature alarm device |
| CN105203220B (en) * | 2015-10-29 | 2018-03-06 | 大庆市日上仪器制造有限公司 | A kind of saturated vapor pressure constant temperature warning device |
| CN111166157A (en) * | 2018-11-13 | 2020-05-19 | 宁波方太厨具有限公司 | Steam box and cleaning method thereof |
| CN110411607A (en) * | 2019-07-15 | 2019-11-05 | 山东新华医疗器械股份有限公司 | The multiple spot method of calibration of sterilizer temperature sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20141119 |
|
| EXPY | Termination of patent right or utility model |