CN105628242A - Method for detecting temperature distribution and temperature gradient of object surface and equipment thereof - Google Patents
Method for detecting temperature distribution and temperature gradient of object surface and equipment thereof Download PDFInfo
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- CN105628242A CN105628242A CN201511023058.9A CN201511023058A CN105628242A CN 105628242 A CN105628242 A CN 105628242A CN 201511023058 A CN201511023058 A CN 201511023058A CN 105628242 A CN105628242 A CN 105628242A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
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Abstract
The invention provides a method for detecting temperature distribution and a temperature gradient of an object surface and equipment thereof. The method comprises: (1), wiring on a flexible circuit board is carried out according to a size of a superficial area of a detected object and a needed resolution ratio, so that a net structure is formed by the wiring; (2), a platinum resistor temperature sensor is welded to the flexible circuit board; (3), the circuit board is pasted to the surface of the detected object by thermally conductive silicone grease and the edge of the circuit board is fixed by an adhesive; (4), a signal of the temperature sensor is led to temperature collection equipment by a lead; (5), a controller of the temperature collection equipment controls relay to select a corresponding temperature channel to carry out temperature detection; and (6), after temperature detection, a temperature value is displayed by a display screen and the temperature can be sent to a remote controller by means of communication. According to the invention, with consideration of limitation on temperature detection by various environments and the shape of the detected object, the surface temperature of the object can be measured rapidly and precisely according to demands. The method and equipment are suitable for precise detection on the surface temperature distribution and gradients of various objects working in various environments.
Description
Technical field
The present invention relates to the detection method of a kind of body surface temperature distribution and gradient and equipment, be specifically related to a kind of can the equipment of inspected object surface temperature distribution and thermograde, being specially adapted to disposable layout temperature sensor and detect, being particularly useful for object needs to detect surface temperature distribution and gradient and the occasion not easily accomplished of conventional instrument.
Background technology
Temperature affects the important environmental parameters that we produce life, the characteristic of object is also had an impact by temperature simultaneously, and particularly in heat transfer process, heat carries out heat exchange by object and surrounding environment, thus in object, produce the gradual change of temperature, i.e. thermograde. In addition due to the difference of object composition material, object shows anisotropy in temperature conduction process, namely the distribution of same temperature is not a straight line, therefore different on the surface of object regional temperatures is different, in order to understand temperature in depth to the impact of object, it is necessary to know the distribution situation of temperature at body surface.
Temperature survey can be divided into contact type measurement and non-contact measurement substantially, contact type measurement mainly directly contacts the temperature of Measuring Object by hot resistance or thermopair with testee, and non-contact measurement is mainly by infrared thermometer or thermal infrared imager. Contact type measurement and any temperature of infrared thermometer energy inspected object surface, thermal infrared imager can the overall profiling temperatures in inspected object surface. Usually we the maximum of application are exactly contact type temperature measuring, but if it is desired to the temperature distribution on inspected object surface and gradient, the measurement that single-point is has significant limitation. The first, install cumbersome, it is necessary to temp probe is installed to body surface one by one, and workload is big. 2nd, connect up more because each temperature sensor at least needs two wires, if object being measured surface-area is big and the resolving power height that needs, then connect up work very heavy. Although thermal infrared imager can the temperature distribution on disposable inspected object surface and gradient, but when thermal infrared imager detected temperatures, it is necessary near tested object, for the temperature survey of some extreme environments, such as high temperature, low temperature, the environment such as poisonous, thermal infrared imager just can not use.
Summary of the invention
It is an object of the invention to provide a kind of method of quick inspected object surface temperature distribution and gradient and equipment, this equipment can meet in any environment, the surface temperature of quick inspected object and gradient. The mechanism that this equipment uses is simple, it may be achieved property is strong, superior performance and can have the function that can expand.
For realizing described object, the technical scheme of the present invention is, a kind of method of inspected object surface temperature distribution and gradient, it is characterised in that, step is as follows:
(1). connect up on flexible PCB according to the size of testee surface-area and required resolving power, make be routed to reticulated structure; Namely laying the line mutually intersected and row line on circuit boards, line number is multiplied with row line number and equals the quantity of temperature sensor, settles pad to be used for the welding of temperature sensor in the position that line and row line intersect;
(2). temperature sensor is welded on flexible PCB;
(3). with heat-conducting silicone grease, circuit card being pasted testee surface, the limit glue of circuit card is fixed;
(4). by wire, the signal of temperature sensor is drawn out on temperature acquisition equipment;
(5). select corresponding temperature channel to carry out temperature detection by the controller relay of temperature acquisition equipment;
(6). after having detected temperature, demonstrate temperature value by display screen, it is also possible to by the mode of communication, temperature is sent in Long-distance Control device.
Wherein step (2) in platinum resistance temperature sensor model can adopt PT100 or PT1000;
Step (5) in, temperature sensor is selected by described detection circuit by rly. group, described rly. group by controller carry out control close and open.
The technical scheme completing the application's the 2nd invention task is, the equipment that the method for above-mentioned inspected object surface temperature distribution and gradient uses, comprise temperature detection controller, rly. group, displays temperature detected value indicating meter and for the communicating circuit of communication transfer, it is characterized in that, flexible PCB is welded with some platinum resistance temperature sensors, each platinum resistance temperature sensor is connected by wire, is routed to reticulated structure; The output of this flexible PCB is transferred to Long-distance Control device by the mode of communication temperature detection value.
The mode of connection of described " reticulated structure " circuit is: physical circuit is as shown in Figure 1, according to the temperature sensor size selected and testee surface-area, flexible PCB carries out mesh cloth line, namely cloth intersects mutually line and row line, line number is multiplied with row line number and equals the quantity of temperature sensor, settles pad to be used for the welding of temperature sensor in the position that line and row line intersect.
Described platinum resistance temperature sensor can adopt PT100 or PT1000.
Each output terminal of described flexible PCB by the mode of communication, temperature detection value is transferred to Long-distance Control device selectively by rly. group.
Described rly. group is controlled by rly. driving circuit by temperature detection controller.
The advantage of the present invention: the quantity 1, decreasing wiring, for 25 temperature sensors, only needs cloth 10 lines by the method for this invention, and needs cloth 50 lines by traditional method. The minimizing of wiring also provides space to temperature sensor, makes the resolving power of surface temperature measurement higher.
The principle of work of the present invention is:
Make the flexible PCB identical with testee surface area in advance, connect up on circuit boards according to required temperature resolution, temperature sensor is welded on flexible PCB, circuit card thermal grease conduction is attached to testee surface, the limit glue of circuit card is fixed, finally by the temperature distribution on temperature testing equipment inspected object surface.
Accompanying drawing explanation
In conjunction with enforcement mode, the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the schematic block circuit diagram of the present invention.
Embodiment
Please refer to Fig. 1, method and the equipment of a kind of inspected object surface temperature distribution of the present invention and gradient comprise temperature sensor 3, connect wire 2 and the flexible PCB 1 of temperature sensor. Size according to testee surface-area and the requirement of required temperature resolution, select the size of the size of suitable temperature sensor, space layout and circuit card, then to flexible PCB carries out latticed wiring, namely cloth intersects mutually line and row line, line number is multiplied with row line number and equals the quantity of temperature sensor, settles pad to be used for the welding of temperature sensor in the position that line and row line intersect. After circuit card 1 machines, temperature sensor 3 is welded on circuit card 1, and then by welding outside lead-in wire, the output of temperature sensor is connected on test set.
Temperature testing equipment please refer to Fig. 2, and temperature testing equipment comprises rly. group 4, and rly. drives 5, controller 6, communication interface 7 and indicating meter 8. Temperature sensor is detected by controller 6, but the detection interface of controller is limited, if the temperature sensor detected is too much, then require pilot circuit and temperature sensor is carried out timesharing detection, the temperature sensor to be detected is selected by the present invention by temperature sensor rly. group 4, and rly. is driven by controller. If it is desired to the value of detection first group of temperature sensor, then closing relay 1, opens the rly. that other are all simultaneously, so just the output line X1 of temperature sensor and Y1 Access Control device, is detected by temperature sensor by controller. Analogize with this, if it is desired to the value of detected temperatures sensor n, then closing relay n, and open the rly. that other are all, then temperature sensor n is just detected by controller. The value of temperature detection is obtained by two kinds of modes, and one is directly the temperature sensor of each point is obtained by indicating meter 8, and display is relatively more directly perceived like this, utilizes field staff to operate. Two is by communication interface, such as serial communication (RS232, RS485) or network communication, the value of temperature sensor is transferred to Long-distance Control device, carry out specimens preserving by Long-distance Control device, be conducive to the variation tendency of analysis temperature value like this, obtain the characteristic about object temperature better.
Claims (9)
1. the method for an inspected object surface temperature distribution and gradient, it is characterised in that, step is as follows:
(1). connect up on flexible PCB according to the size of testee surface-area and required resolving power, make be routed to reticulated structure: lay the line and row line that mutually intersect, line number is multiplied with row line number and equals the quantity of temperature sensor, settles pad to be used for the welding of temperature sensor in the position that line and row line intersect;
(2). temperature sensor is welded on flexible PCB;
(3). with heat-conducting silicone grease, circuit card being pasted testee surface, the limit glue of circuit card is fixed;
(4). by wire, the signal of temperature sensor is drawn out on temperature acquisition equipment;
(5). select corresponding temperature channel to carry out temperature detection by the controller relay of temperature acquisition equipment;
(6). after having detected temperature, demonstrate temperature value by display screen, it is also possible to by the mode of communication, temperature is sent in Long-distance Control device.
2. the method for inspected object surface temperature distribution according to claim 1 and gradient, it is characterised in that: step (2) in temperature sensor model adopt PT100 or PT1000.
3. the method for inspected object surface temperature distribution according to claim 1 and gradient, it is characterised in that: step (5) in, temperature sensor is selected by described detection circuit by rly. group.
4. according to the method for the inspected object surface temperature distribution one of claim 1-3 Suo Shu and gradient, it is characterised in that: described rly. group carries out control by controller and closes and open.
5. the equipment that the method for inspected object surface temperature distribution according to claim 1 and gradient uses, include temperature detection controller, rly. group, displays temperature detected value indicating meter and for the communicating circuit of communication transfer, it is characterized in that, flexible PCB is welded with some platinum resistance temperature sensors, each platinum resistance temperature sensor is connected by wire, is routed to reticulated structure; The output of this flexible PCB is transferred to Long-distance Control device by the mode of communication temperature detection value.
6. the equipment that the method for inspected object surface temperature distribution according to claim 5 and gradient uses, it is characterized in that, the mode of connection of described " reticulated structure " circuit is: according to the temperature sensor size selected and testee surface-area, at the enterprising row wiring of flexible PCB, namely cloth intersects mutually line and row line, line number is multiplied with row line number and equals the quantity of temperature sensor, settles pad to be used for the welding of temperature sensor in the position that line and row line intersect.
7. the equipment that the method for inspected object surface temperature distribution according to claim 5 and gradient uses, it is characterised in that, described platinum resistance temperature sensor adopts PT100 or PT1000.
8. the equipment that the method for inspected object surface temperature distribution according to claim 5 and gradient uses, it is characterized in that, each output terminal of described flexible PCB by the mode of communication, temperature detection value is transferred to Long-distance Control device selectively by rly. group.
9. the equipment used according to the method for the inspected object surface temperature distribution one of claim 5-8 Suo Shu and gradient, it is characterised in that, described rly. group is controlled by rly. driving circuit by temperature detection controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511023058.9A CN105628242A (en) | 2015-12-30 | 2015-12-30 | Method for detecting temperature distribution and temperature gradient of object surface and equipment thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511023058.9A CN105628242A (en) | 2015-12-30 | 2015-12-30 | Method for detecting temperature distribution and temperature gradient of object surface and equipment thereof |
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| CN105628242A true CN105628242A (en) | 2016-06-01 |
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| CN201511023058.9A Pending CN105628242A (en) | 2015-12-30 | 2015-12-30 | Method for detecting temperature distribution and temperature gradient of object surface and equipment thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595886A (en) * | 2016-10-31 | 2017-04-26 | 惠州市德赛西威汽车电子股份有限公司 | Sheet-shaped thermocouple temperature measuring paster and temperature measuring method |
| CN108844566A (en) * | 2018-07-19 | 2018-11-20 | 深圳乐测物联网科技有限公司 | The treatment process and temperature sensor mould group of temperature sensor mould group |
| CN109073473A (en) * | 2017-01-16 | 2018-12-21 | 株式会社芝浦电子 | temperature sensor |
| CN112857606A (en) * | 2020-12-29 | 2021-05-28 | 深圳微步信息股份有限公司 | Temperature acquisition device of circuit board and electronic equipment with same |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595886A (en) * | 2016-10-31 | 2017-04-26 | 惠州市德赛西威汽车电子股份有限公司 | Sheet-shaped thermocouple temperature measuring paster and temperature measuring method |
| CN109073473A (en) * | 2017-01-16 | 2018-12-21 | 株式会社芝浦电子 | temperature sensor |
| CN108844566A (en) * | 2018-07-19 | 2018-11-20 | 深圳乐测物联网科技有限公司 | The treatment process and temperature sensor mould group of temperature sensor mould group |
| CN112857606A (en) * | 2020-12-29 | 2021-05-28 | 深圳微步信息股份有限公司 | Temperature acquisition device of circuit board and electronic equipment with same |
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