CN208672190U - A kind of temperature measurement verification system - Google Patents
A kind of temperature measurement verification system Download PDFInfo
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- CN208672190U CN208672190U CN201821540500.4U CN201821540500U CN208672190U CN 208672190 U CN208672190 U CN 208672190U CN 201821540500 U CN201821540500 U CN 201821540500U CN 208672190 U CN208672190 U CN 208672190U
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- temperature measurement
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- verification system
- refrigeration
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Abstract
The utility model discloses a kind of temperature measurement verification systems, including microprocessor and the serial communication module being connected with the microprocessor, print out module, memory module, standard temperature measurement module, function button and display, the function button is connect with the display, the microprocessor also with A/D converter, heat one end connection of relay and the relay that freezes, the other end of the A/D converter is connect with sensor, the other end of the heating relay is connect with heater, the other end of the refrigeration relay is connect with refrigeration system, the sensor and heater are set in thermostatic water bath, the refrigeration system is connect with the thermostatic water bath.The utility model realizes the multiple spot calibrating of temperature, while improving the precision of temperature measurement calibrating as metering mark ginseng using standard platinum resistance by establishing isoperibol.
Description
Technical field
The utility model relates to measurement verification technical field, in particular to a kind of temperature measurement verification system.
Background technique
It is very extensive that the metering and calibration of temperature parameter and on-site test work are related to face, is mainly used in food processing
The purpose of the industries such as industry, medical instrument manufacturing industry, environmental monitoring and protection, the calibrating of temperature measurement utensil is, evaluates thermometer
With the metering performance of temperature sensor, and qualification is determined whether.Temperature measurement calibration equipment is bulky at present, verification process
Again relative complex, low efficiency, the heavy workload manually examined and determine, the reliability of calibrating also cannot be guaranteed, and cause measurement instrument
Re-testing periods it is too long, the calibration operation of a large amount of novel sensors can not be adapted to.
Utility model content
In order to overcome defect present in background technique, the utility model provides a kind of temperature measurement verification system.
To achieve the goals above, the technical solution adopted in the utility model are as follows: a kind of temperature measurement verification system, including
Microprocessor and the serial communication module being connected with the microprocessor, printout module, memory module, standard thermometric mould
Block, function button and display, the function button are also connect with the display, the microprocessor also with A/D converter,
Heat relay and refrigeration relay connection, the A/D converter also connect with sensor, the heating relay also with heating
Device connection, the refrigeration relay are also connect with refrigeration system, and the sensor and heater are all set in thermostatic water bath, institute
Thermostatic water bath is stated to connect with the refrigeration system.
In the above scheme, the thermostatic water bath includes groove body and rabbling mechanism, and the rabbling mechanism includes series excited machine
And blender, the series excited machine are installed on the top of groove body, drive blender work, the groove body point by motor transmission shaft
For workspace and mixed zone, the workspace is equipped with standard platinum resistance and platinum resistance to be checked, and the mixed zone is installed with described
Heater and blender.
In the above scheme, the refrigeration system mainly includes refrigeration compressor, separator, condenser, filter and steaming
Device is sent out, the refrigeration compressor is connect with the separator, and the separator is connect with the condenser, the condenser and institute
Filter connection is stated, the filter passes sequentially through solenoid valve and throttle valve and connect with the evaporator, the evaporator and institute
Refrigeration compressor connection is stated, the refrigeration compressor is also connect with the refrigeration relay, and the evaporator is installed on the slot
In the mixed zone of body.
In the above scheme, the evaporator is coil evaporator.
In the above scheme, the groove body is made of stainless steel and foamed plastic is used to keep the temperature.
In the above scheme, the microprocessor uses AT89C52 chip.
In the above scheme, the serial communication module uses RS232 serial communication interface.
In the above scheme, the memory module uses Tiny RTC I2C module.
In the above scheme, the standard temperature measurement module uses LTM8003 digital measurement of temperature module.
In the above scheme, the printout module uses HP510 print module.
Compared with prior art, the utility model has the beneficial effects that (1) utilizes liquid by establishing isoperibol
Mobility forms more uniform temperature field in heat exchanging process, and is kept the temperature at by temperature control system certain
At a temperature of, to realize the multiple spot calibrating of temperature, while temperature measurement calibrating is improved as metering mark ginseng using standard platinum resistance
Precision.(2) ability for improving automation degree of equipment and human-computer interaction reduces the technical requirements to operating process.(3)
Calibration equipment volume is minimized using sensing technology and control technology, it is easily operated.
Detailed description of the invention
Fig. 1 is the utility model temperature measurement verification system composed structure block diagram；
Fig. 2 is the utility model thermostatic water bath schematic diagram；
Fig. 3 is the utility model refrigerant system configurations composition block diagram.
In figure: 1- microprocessor；2-A/D converter；3- standard temperature measurement module；4- serial communication module；5- memory mould
Block；6- function button；7- display；8- thermostatic water bath；9- heats relay；10- refrigeration relay；11- sensor；12- is beaten
Print output module；13- heater；14- refrigeration system；15- groove body；16- rabbling mechanism；17- series excited machine；18- blender；
19- standard platinum resistance；20- platinum resistance to be checked；21- refrigeration compressor；22- separator；23- condenser；24- filter；25- steams
Send out device；26- throttle valve；27- solenoid valve；The workspace 28-；The mixed zone 29-；30- motor transmission shaft.
Specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, being the utility model temperature measurement verification system, including microprocessor 1 and it is connected with microprocessor 1
Serial communication module 4, printout module 12, memory module 5, standard temperature measurement module 3, function button 6 and the display connect
7, function button 6 is also connect with display 7, microprocessor 1 also with A/D converter 2, heating relay 9 and refrigeration relay 10
Connection, A/D converter 2 also connect with sensor 11, and heating relay 9 is also connect with heater 13, freeze relay 10 also with
Refrigeration system 14 connects, and sensor 11 and heater 13 are all set in thermostatic water bath 8, thermostatic water bath 8 and the refrigeration system
14 connections.
Wherein, microprocessor 1 uses AT89C52 chip, is the control unit of temperature measurement calibrating installation, is responsible for collecting each
The data information of comprising modules runs the working condition for issuing instruction control each section by program.Microprocessor 1 passes through A/D
Converter 2 acquires the temperature of thermostatic water bath 8 in real time, calculates the difference of set temperature and the change rate of temperature gap.
Wherein, standard temperature measurement module 3 uses LTM8003 digital measurement of temperature module, provides for platinum resistance to be examined and determine existing
At temperature measurement circuit, the installation of convenient platinum resistance to be examined and determine.
Wherein, function button 6, display 7, memory module 5, serial communication module 4 and printout module 12 together
Realize the peripheral miscellaneous function of temperature measurement calibrating installation.
Wherein, function button 6 provides the operating platform of human-computer interaction by function keyboard, can for select calibrating installation
Execute the setting of function and proving temperature.
Wherein, display 7 uses LCD liquid crystal display, for providing human-computer interaction interface, shows all data.
Wherein, memory module 5 uses Tiny RTC I2C module, and the storage for calibrating installation program and data provides sky
Between, it is the extension of external memory, is responsible for the data information collected, in storage verification process.
Wherein, serial communication module 4 uses RS232 serial communication interface, realizes that the data of calibrating installation and PC machine are transmitted.
Wherein, printout module 12 uses HP510 print module, can make to examine and determine data and examine and determine conclusion with text
Form printout.
As shown in Fig. 2, thermostatic water bath 8 includes groove body for the thermostatic water bath 8 in the utility model temperature measurement verification system
15 and rabbling mechanism 16, rabbling mechanism 16 includes series excited machine 17 and blender 18, and series excited machine 17 is installed on the top of groove body 15
Portion drives blender 18 to work by motor transmission shaft 30, and groove body 15 divides for workspace 28 and mixed zone 29, the installation of workspace 28
There are standard platinum resistance 19 and platinum resistance to be checked 20, mixed zone 29 is installed with the heater 13 and blender 18.
Wherein, the working media in thermostatic water bath 8 is water, and heater 13 is mounted in containing insulating materials not by electric heating wire
It is formed in rust steel pipe, is used for heating work medium, realize heating, standard platinum resistance 19 is the temperature-sensitive original part of thermostatic water bath 8, will be to
Inspection 20 cluster of platinum resistance is installed on the same position of workspace, avoids due to the uneven of temperature field and brings mistake to calibrating
Difference, in addition entire groove body 15 is stainless steel structure and is kept the temperature using foamed plastic.
As shown in figure 3, for the refrigeration system in the utility model temperature measurement verification system, including refrigeration compressor 21,
Separator 22, condenser 23, filter 24 and evaporator 25, refrigeration compressor 21 are connect with separator 22, separator 22 with it is cold
Condenser 23 connects, and condenser 23 is connect with filter 24, and filter 24 passes sequentially through solenoid valve 27 and throttle valve 26 and evaporator
25 connections, evaporator 25 are connect with refrigeration compressor 21, and refrigeration compressor 21 is also connect with refrigeration relay 10, and evaporator 25 is pacified
In mixed zone 29 loaded on groove body 15.
Wherein, evaporator 25 is coil evaporator.
Wherein, refrigeration compressor 21 selects horizontal type rolling rotor formula refrigeration compressor, the clearance of rolling rotor compressor
Volume is small, not only substantially increases the air input efficiency of compressor, but also reduces the height of compressor, and secondly condenser 23 uses
Mechanical air cooling system is avoided and is further reduced the volume of thermostatic water bath using culvert system necessary to water cooling.
The course of work of thermostatic water bath 8 is as follows: working media relies on the promotion of blender 18, in mixed zone 29 from upper and
Lower flowing (being the flow direction of working media described in arrow in figure), heated device 13 and coil evaporator carry out heat exchange, stir
The strong agitation for mixing device 18, is sufficiently mixed working media while convection current, realizes the mutual heat of working media
Exchange, and the medium that pushes the work forward is flowed out from bottom, and water conservancy diversion enters workspace 28, the thermal convection of working media is accelerated, in work
Make temperature and flow velocity in area due to bottom working media and be above the working media on upper layer, will further mix
And heat exchange, it is then flowed out from the top of workspace 28, again flows into mixed zone 29, circuited sequentially reciprocal.
When the set temperature of thermostatic water bath 8 is lower than room temperature, refrigeration system work passes through the coil pipe being mounted in groove body 15
25 cooling work medium of evaporator realizes cooling.
When the set temperature of thermostatic water bath 8 is higher than room temperature, heater 13 works, and realizes heating.
When the temperature of thermostatic water bath 8 is close to set temperature, refrigeration system 14 and heater 13 are worked at the same time, and the two generates
Heat effect mutually eat up part of, make temperature dynamic balancing in setting value.
The above is only the embodiments of the present invention, are not intended to limit the scope of the utility model, all to utilize this
Equivalent process transformation made by the description of utility model is directly or indirectly applied in other correlative technology fields,
Similarly in the scope of patent protection of the utility model.
Claims (10)
1. a kind of temperature measurement verification system, it is characterised in that: be connected including microprocessor (1) and with microprocessor (1)
Serial communication module (4), printout module (12), memory module (5), standard temperature measurement module (3), function button (6) and
Display (7), the function button (6) also connect with the display (7), and the microprocessor (1) is gone back and A/D converter
(2), relay (9) and refrigeration relay (10) connection are heated, the A/D converter (2) also connect with sensor (11), described
Heating relay (9) is also connect with heater (13), and the refrigeration relay (10) also connect with refrigeration system (14), the biography
Sensor (11) and heater (13) are all set in thermostatic water bath (8), and the thermostatic water bath (8) and the refrigeration system (14) are even
It connects.
2. temperature measurement verification system according to claim 1, it is characterised in that: the thermostatic water bath (8) includes groove body
(15) and rabbling mechanism (16), the rabbling mechanism (16) include series excited machine (17) and blender (18), the series excited machine
(17) it is installed on the top of groove body (15), drives blender (18) work, the groove body (15) point by motor transmission shaft (30)
For workspace (28) and mixed zone (29), the workspace (28) is equipped with standard platinum resistance (19) and platinum resistance to be checked (20),
The mixed zone (29) is installed with the heater (13) and blender (18).
3. temperature measurement verification system according to claim 2, it is characterised in that: the refrigeration system (14) includes refrigeration
Compressor (21), separator (22), condenser (23), filter (24) and evaporator (25), the refrigeration compressor (21) with
Separator (22) connection, the separator (22) connect with the condenser (23), the condenser (23) and the mistake
Filter (24) connection, the filter (24) pass sequentially through solenoid valve (27) and throttle valve (26) and the evaporator (25) even
Connect, the evaporator (25) connect with the refrigeration compressor (21), the refrigeration compressor (21) also with the refrigeration relay
Device (10) connection, the evaporator (25) are installed in the mixed zone (29) of the groove body (15).
4. temperature measurement verification system according to claim 3, it is characterised in that: the evaporator (25) is coil pipe evaporation
Device.
5. temperature measurement verification system according to claim 2, it is characterised in that: the groove body (15) is made of stainless steel
And it is kept the temperature using foamed plastic.
6. temperature measurement verification system according to claim 1, it is characterised in that: the microprocessor (1) uses
AT89C52 chip.
7. temperature measurement verification system according to claim 1, it is characterised in that: the serial communication module (4) uses
RS232 serial communication interface.
8. temperature measurement verification system according to claim 1, it is characterised in that: the memory module (5) uses
Tiny RTC I2C module.
9. temperature measurement verification system according to claim 1, it is characterised in that: the standard temperature measurement module (3) uses
LTM8003 digital measurement of temperature module.
10. temperature measurement verification system according to claim 1, it is characterised in that: the printout module (12) is adopted
With HP510 print module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821540500.4U CN208672190U (en) | 2018-09-20 | 2018-09-20 | A kind of temperature measurement verification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821540500.4U CN208672190U (en) | 2018-09-20 | 2018-09-20 | A kind of temperature measurement verification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208672190U true CN208672190U (en) | 2019-03-29 |
Family
ID=65843288
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821540500.4U Active CN208672190U (en) | 2018-09-20 | 2018-09-20 | A kind of temperature measurement verification system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208672190U (en) |
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2018
- 2018-09-20 CN CN201821540500.4U patent/CN208672190U/en active Active
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