CN204514369U - A kind of temperature measurer - Google Patents
A kind of temperature measurer Download PDFInfo
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- CN204514369U CN204514369U CN201520118079.8U CN201520118079U CN204514369U CN 204514369 U CN204514369 U CN 204514369U CN 201520118079 U CN201520118079 U CN 201520118079U CN 204514369 U CN204514369 U CN 204514369U
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Abstract
The utility model discloses a kind of temperature measurer, comprise master control IC, laser circuit, laser circuit, laser circuit, humidity sensor circuit, temperature sensor circuit, Temperature displaying LCD and backlight circuit, humidity display LCD and backlight circuit, power circuit are connected with master control IC respectively.The beneficial effects of the utility model are, the utility model contains the testing circuit of infrared measurement of temperature and ambient humidity, measurement and display while realize target temperature and ambient humidity, infrared thermometer is except having the temp sensing function of common Non-contacting Infrared Thermometer simultaneously, also there is setting measurement reference temperature function, reference temperature value over range warning function etc.User is facilitated to understand more environmental information.
Description
Technical field
The utility model belongs to thermometry field, relates to a kind of temperature measurer.
Background technology
Temperature measurer is on the market varied, in order to meet the demand of people, by different design concepts, makes the function of temperature measurer can reach the user demand of different user.In order to the serviceability temperature of testing apparatus, touchless tester gets more and more, but its complex structure of existing temperature measurer, and cost is high.
Utility model content
The purpose of this utility model is to provide a kind of temperature measurer, solves problems of the prior art, and structure simple functions is reliable, and cost is low.
The technical scheme that the utility model adopts is, a kind of temperature measurer, comprise master control IC, laser circuit, laser circuit, laser circuit, humidity sensor circuit, temperature sensor circuit, Temperature displaying LCD and backlight circuit, Temperature displaying LCD and backlight circuit, power circuit are connected with master control IC respectively.
Feature of the present utility model is also, in master control IC, U1 is chip microprocessor, and inside is integrated into controllable gain amplifier, 16 bit A/D converters, LCD driving circuit, mu balanced circuit and low-voltage testing circuit; Cell voltage is connected to low voltage test end after resistance R11, R24 dividing potential drop, also comprises power filtering capacitor.
In laser circuit, LS1 is red laser, and its anode receives cell voltage, and negative electrode receives the collector of Q5, and Q5 is that electric current drives triode, and control by master control IC, the R1 that the emitter of Q5 connects is current-limiting resistance, determines the size of current of red laser LS1.
It is EEPROM, R15 is pull-up resistor that data storage circuitry comprises U2, a U2, and an end is connected to 3V voltage, and the other end receives the SDA port of U2, and R6 is isolation resistance, is arranged between R15 and SDA port.C4 is power supply filter capacitor, and U2 is connected with master control IC by I2C interface.
In humidity sensor circuit, R18 and C14 is connected to form a RC charging and discharging circuit, forms another RC charge circuit after HR1 and R8 parallel connection with C14, determines the charge and discharge of two charging and discharging circuit and detect the discharge and recharge time by master control IC through H1, H2, H3.
In temperature sensor circuit, T1 is temperature sensor, temperature sensor inside is divided into two-way, one tunnel is the thermistor for surveying environment temperature, another road is the thermoelectric pile for receiving extraneous infrared light, and R9 is connected with one end of thermistor, with thermistor dividing potential drop, after C10 filtering, give master control IC, thermoelectric pile gives master control IC after C11 filtering.
In Temperature displaying LCD and backlight circuit, LED2 is backlight leds, its anode receives cell voltage, negative electrode receives the collector of Q1, Q1 is that electric current drives triode, and control by master control IC, the R7 that the emitter of Q1 connects is current-limiting resistance, LCD2 is display panels, drives pin to be connected to master control IC.
In humidity display LCD and backlight circuit, LED1 is three-color LED backlight, and R3, R4, R5 are respectively the current-limiting resistance of three-color LED, and every paths of LEDs is controlled by master control IC, and LCD1 is display panels, drives pin to be connected to master control IC.
In power circuit, cell voltage enters U3 after C2 filtering, and U3 is three terminal regulator, exports 3.0V burning voltage after U3 voltage stabilizing, and C12 is that the filter capacitor after voltage stabilizing is connected with U3.
The beneficial effects of the utility model are, the utility model contains the testing circuit of infrared measurement of temperature and ambient humidity, measurement and display while realize target temperature and ambient humidity, infrared thermometer is except having the temp sensing function of common Non-contacting Infrared Thermometer simultaneously, also there is setting measurement reference temperature function, reference temperature value over range warning function etc.User is facilitated to understand more environmental information.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit diagram of master control IC and peripheral circuit.
Fig. 3 is the circuit diagram of laser circuit.
Fig. 4 is the circuit diagram of data storage circuitry.
Fig. 5 is the circuit diagram of humidity sensor circuit.
Fig. 6 is the circuit diagram of temperature sensor circuit.
Fig. 7 is the circuit diagram of Temperature displaying LCD and backlight circuit.
Fig. 8 is the circuit diagram of humidity display LCD and backlight circuit.
Fig. 9 is the circuit diagram of power circuit.
In figure, 1. master control IC, 2. laser circuit, 3. data storage circuitry, 4. key circuit, 5. humidity sensor circuit, 6. temperature sensor circuit, 7. Temperature displaying LCD and backlight circuit, 8. humidity display LCD and backlight circuit, 9. power circuit.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
The structure of the utility model temperature measurer, as shown in Figure 1, comprise master control IC1, laser circuit 2, laser circuit 3, laser circuit 4, humidity sensor circuit 5, temperature sensor circuit 6, Temperature displaying LCD and backlight circuit 7, Temperature displaying LCD and backlight circuit 8, power circuit 9 are connected with master control IC 1 respectively.
The structure of master control IC1, as shown in Figure 2, U1 is chip microprocessor, and inside is integrated into controllable gain amplifier, 16 bit A/D converters, LCD driving circuit, mu balanced circuit and low-voltage testing circuit.Gain amplifier is for amplifying transducing signal, and the simulating signal of humidity sensor circuit, temperature sensor circuit is converted to data-signal for chip microprocessor process by AD converter.Cell voltage is connected to low voltage test end after resistance R11, R24 dividing potential drop, and other electric capacity is power filtering capacitor.
The structure of laser circuit 2, as shown in Figure 3, LS1 is red laser, its anode receives cell voltage, and negative electrode receives the collector of Q5, and Q5 is that electric current drives triode, control by master control IC1, the R1 that the emitter of Q5 connects is current-limiting resistance, determines the size of current of red laser LS1.
The structure of data storage circuitry 3, as shown in Figure 4, comprising U2, a U2 is EEPROM, and erasable except data and can not losing after data power down, R15 is pull-up resistor, and an end is connected to 3V voltage, and the other end receives the SDA port of U2.R6 is isolation resistance, is arranged between R15 and SDA port.C4 is power supply filter capacitor.U2 is connected with master control IC1 by I2C interface.
The structure of humidity sensor circuit 5, as shown in Figure 5, R18 and C14 is connected to form a RC charging and discharging circuit, forms another RC charge circuit after HR1 and R8 parallel connection with C14, determined the charge and discharge of two charging and discharging circuit by master control IC1 through H1, H2, H3, and detect the discharge and recharge time.
The structure of temperature sensor circuit 6, as shown in Figure 6, T1 is temperature sensor, and temperature sensor inside is divided into two-way, and a road is thermistor, for surveying environment temperature; Another road is thermoelectric pile, and for receiving extraneous infrared light, R9 is connected with one end of thermistor, with thermistor dividing potential drop, gives master control IC1 after C10 filtering.Thermoelectric pile gives master control IC1 after C11 filtering.
The structure of Temperature displaying LCD and backlight circuit 7, as shown in Figure 7, LED2 is backlight leds, its anode receives cell voltage, and negative electrode receives the collector of Q1, and Q1 is that electric current drives triode, control by master control IC1, the R7 that the emitter of Q1 connects is current-limiting resistance, determines the size of current of LED2.LCD2 is display panels, display humidity value, drives pin to be connected to master control IC1.
The structure of humidity display LCD and backlight circuit 8, as shown in Figure 8, LED1 is three-color LED backlight, and R3, R4, R5 are respectively the current-limiting resistance of three-color LED, and every paths of LEDs is controlled by master control IC1.LCD1 is display panels, displays temperature value, drives pin to be connected to master control IC1.
The structure of power circuit 9, as shown in Figure 9, cell voltage enters U3 after C2 filtering, and U3 is three terminal regulator, exports 3.0V burning voltage after U3 voltage stabilizing, and C12 is the filter capacitor after voltage stabilizing.
Claims (9)
1. a temperature measurer, it is characterized in that, comprise master control IC (1), laser circuit (2), laser circuit (3), laser circuit (4), humidity sensor circuit (5), temperature sensor circuit (6), Temperature displaying LCD and backlight circuit (7), Temperature displaying LCD and backlight circuit (8), power circuit (9) are connected with master control IC (1) respectively.
2. a kind of temperature measurer according to claim 1, is characterized in that, in master control IC (1), U1 is chip microprocessor, and inside is integrated into controllable gain amplifier, 16 bit A/D converters, LCD driving circuit, mu balanced circuit and low-voltage testing circuit; Cell voltage is connected to low voltage test end after resistance R11, R24 dividing potential drop, also comprises power filtering capacitor.
3. a kind of temperature measurer according to claim 1, it is characterized in that, in laser circuit (2), LS1 is red laser, and its anode receives cell voltage, and negative electrode receives the collector of Q5, Q5 is that electric current drives triode, control by master control IC (1), the R1 that the emitter of Q5 connects is current-limiting resistance, determines the size of current of red laser LS1.
4. a kind of temperature measurer according to claim 1, is characterized in that, data storage circuitry (3) comprises a U2, U2 is EEPROM, R15 is pull-up resistor, and an end is connected to 3V voltage, the other end receives the SDA port of U2, and R6 is isolation resistance, is arranged between R15 and SDA port; C4 is power supply filter capacitor, and U2 is connected with master control IC (1) by I2C interface.
5. a kind of temperature measurer according to claim 1, it is characterized in that, in humidity sensor circuit (5), R18 and C14 is connected to form a RC charging and discharging circuit, form another RC charge circuit with C14 after HR1 and R8 parallel connection, determine the charge and discharge of two charging and discharging circuit by master control IC (1) through H1, H2, H3 and detect the discharge and recharge time.
6. a kind of temperature measurer according to claim 1, it is characterized in that, in temperature sensor circuit (6), T1 is temperature sensor, and temperature sensor inside is divided into two-way, one tunnel is the thermistor for surveying environment temperature, another road is the thermoelectric pile for receiving extraneous infrared light, and R9 is connected with one end of thermistor, with thermistor dividing potential drop, after C10 filtering, give master control IC (1), master control IC (1) given by thermoelectric pile after C11 filtering.
7. a kind of temperature measurer according to claim 1, it is characterized in that, in Temperature displaying LCD and backlight circuit (7), LED2 is backlight leds, and its anode receives cell voltage, negative electrode receives the collector of Q1, Q1 is that electric current drives triode, and control by master control IC (1), the R7 that the emitter of Q1 connects is current-limiting resistance, LCD2 is display panels, drives pin to be connected to master control IC (1).
8. a kind of temperature measurer according to claim 1, it is characterized in that, in humidity display LCD and backlight circuit (8), LED1 is three-color LED backlight, R3, R4, R5 are respectively the current-limiting resistance of three-color LED, every paths of LEDs is controlled by master control IC (1), and LCD1 is display panels, drives pin to be connected to master control IC (1).
9. a kind of temperature measurer according to claim 1, is characterized in that, in power circuit (9), cell voltage enters U3 after C2 filtering, U3 is three terminal regulator, exports 3.0V burning voltage after U3 voltage stabilizing, and C12 is that the filter capacitor after voltage stabilizing is connected with U3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118079.8U CN204514369U (en) | 2015-02-27 | 2015-02-27 | A kind of temperature measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520118079.8U CN204514369U (en) | 2015-02-27 | 2015-02-27 | A kind of temperature measurer |
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| Publication Number | Publication Date |
|---|---|
| CN204514369U true CN204514369U (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520118079.8U Active CN204514369U (en) | 2015-02-27 | 2015-02-27 | A kind of temperature measurer |
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| CN (1) | CN204514369U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917940A (en) * | 2018-08-29 | 2018-11-30 | 浙江荣胜工具有限公司 | A kind of infrared radiation thermometer |
-
2015
- 2015-02-27 CN CN201520118079.8U patent/CN204514369U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108917940A (en) * | 2018-08-29 | 2018-11-30 | 浙江荣胜工具有限公司 | A kind of infrared radiation thermometer |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 321035 No.2, Jinheng Road, Xiaoshun Town, Jindong District, Jinhua City, Zhejiang Province Patentee after: Zhejiang Rongsheng Industrial Co.,Ltd. Address before: No.2, Jinheng Road, Xiaoshun Town, Jinhua City, Zhejiang Province Patentee before: ZHEJIANG RONGSHENG TOOL Co.,Ltd. |
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| CP03 | Change of name, title or address |