CN202350943U - Temperature transmitter - Google Patents
Temperature transmitter Download PDFInfo
- Publication number
- CN202350943U CN202350943U CN2011204071991U CN201120407199U CN202350943U CN 202350943 U CN202350943 U CN 202350943U CN 2011204071991 U CN2011204071991 U CN 2011204071991U CN 201120407199 U CN201120407199 U CN 201120407199U CN 202350943 U CN202350943 U CN 202350943U
- Authority
- CN
- China
- Prior art keywords
- signal
- temperature
- sensor
- processing unit
- utility
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a temperature transmitter, comprising a temperature signal detection unit and a signal processing unit, wherein the temperature signal detection unit is used for acquiring a temperature signal, converting the temperature signal to a corresponding electric signal, and then conveying the electric signal to the signal processing unit; and the signal processing unit converts the electric signal to a current signal and then outputs. By using the structure above, the temperature transmitter disclosed by the utility model is good in monitoring accuracy and reliability for a platinum thermistor, convenient in operation, small in volume, and convenient in installation.
Description
Technical field
The utility model belongs to instrument field, relates to a kind of transmitter, particularly a kind of temperature transmitter.
Background technology
At present, modal temperature sensor is a platinum resistance thermometer sensor, in the industrial processes, and characteristics such as platinum resistance thermometer sensor, has that measurement range is big, good stability and resistance to oxidation have obtained using very widely at middle low-temperature space; Has nonlinear relationship between the resistance of platinum resistance thermometer sensor, and the temperature; In the platinum resistance thermometer sensor, sensor application; Often utilize unbalance bridge circuit to change the resistance variations of sensor into voltage; But owing to have nonlinear relationship between arm resistance and the bridge output voltage, the non-linear and unbalanced bridge unintentional nonlinearity of platinum resistance thermometer sensor, brings very big error to cause measuring accuracy not high to temperature survey.
The utility model content
The purpose of the utility model is to overcome the defective that exists in the prior art, designs a kind of converter temperature that can improve the platinum resistance thermometer sensor, temperature measurement accuracy.
For achieving the above object, the technical scheme of the utility model provides a kind of temperature transmitter, comprising:
The temperature signal detecting unit comprises being arranged near the sensor of dut temperature parts, is used for the collecting temperature signal, and converts temperature signal to corresponding electric signal, then described electric signal is sent to signal processing unit;
Signal processing unit converts the electric signal that receives the temperature signal detecting unit into current signal output through filtering circuit, signal transformation circuit, amplifying circuit, photoisolator and the converter that is connected to circuit board in turn.
For the ease of measuring a plurality of platinum resistance thermometer sensor,s, optimized technical scheme is that described sensor has one at least, also can use a plurality of of the same type or sensors of various types, like said sensor available heat RTD.
In order to guarantee the normal operation of pick-up unit, further optimized technical scheme is, said transmitter also comprises power module, is used to each unit power supply.
For the ease of installing and using, be damaged for fear of interference or transmitter simultaneously, further optimized technical scheme is, also comprises housing, said signal processing unit is arranged in the housing, is provided with the interface of connection detecting signal unit at an end of said housing.
The advantage and the beneficial effect of the utility model are: the temperature that the utility model provides becomes send device, adopts advanced signal processing unit and corresponding senser element, has and monitors accuracy and reliability preferably, and simultaneously easy to operate, volume is urinated in installation; Owing to also comprise housing, said signal processing unit is arranged in the housing, is provided with the interface that connects detecting signal unit at an end of housing, can be so that avoid interference or transmitter is damaged.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram;
Fig. 2 is the utility model structure rating synoptic diagram;
Fig. 3 is the utility model shell mechanism synoptic diagram.
Wherein, 1, housing; 2, power module; 3, circuit board.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
The technical scheme of the utility model practical implementation is:
Embodiment 1
Shown in Fig. 1 to 3, the technical scheme of the utility model provides a kind of temperature transmitter, comprising:
The temperature signal detecting unit comprises being arranged near the sensor of dut temperature parts, is used for the collecting temperature signal, and converts temperature signal to corresponding electric signal, then described electric signal is sent to signal processing unit;
Signal processing unit converts the electric signal that receives the temperature signal detecting unit into current signal output through filtering circuit, signal transformation circuit, amplifying circuit, photoisolator and the converter that is connected to circuit board 3 in turn.
On the basis of embodiment 1, for the ease of measuring a plurality of platinum resistance thermometer sensor,s, optimized technical scheme is that described sensor has one at least.
Embodiment 3
On the basis of embodiment 2, also can use a plurality of of the same type or sensors of various types, like said sensor available heat RTD.
Embodiment 4
On the basis of embodiment 1, in order to guarantee the normal operation of pick-up unit, further optimized technical scheme is, said transmitter also comprises power module 2, is used to each unit power supply.
Embodiment 5
On the basis of embodiment 1,, be damaged for fear of interference or transmitter simultaneously for the ease of portably using; Further optimized technical scheme is; Also comprise housing 1, said signal processing unit is arranged in the housing 1, is provided with the interface of connection detecting signal unit at an end of said housing 1.
The circuit theory of the utility model is to adopt the DC24V DC power supply, and signals collecting is accomplished by thermal resistance temperature sensor, goes out 4-20mA through filtering, amplification, isolation transmit.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (5)
1. a temperature transmitter is characterized in that, comprising:
The temperature signal detecting unit comprises being arranged near the sensor of dut temperature parts, is used for the collecting temperature signal, and converts temperature signal to corresponding electric signal, then described electric signal is sent to signal processing unit;
Signal processing unit converts the electric signal that receives the temperature signal detecting unit into current signal output through filtering circuit, signal transformation circuit, amplifying circuit, photoisolator and the converter that is connected to circuit board in turn.
2. temperature transmitter as claimed in claim 1 is characterized in that: described sensor has one at least.
3. temperature transmitter as claimed in claim 2 is characterized in that: said sensor is a thermal resistance temperature sensor.
4. temperature transmitter as claimed in claim 3 is characterized in that: also comprise power module.
5. like each described temperature transmitter in the claim 1 to 4, it is characterized in that: also comprise housing, said signal processing unit is arranged in the housing, is provided with the interface of connection detecting signal unit at an end of said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204071991U CN202350943U (en) | 2011-10-21 | 2011-10-21 | Temperature transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204071991U CN202350943U (en) | 2011-10-21 | 2011-10-21 | Temperature transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202350943U true CN202350943U (en) | 2012-07-25 |
Family
ID=46539940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204071991U Expired - Fee Related CN202350943U (en) | 2011-10-21 | 2011-10-21 | Temperature transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202350943U (en) |
-
2011
- 2011-10-21 CN CN2011204071991U patent/CN202350943U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203705992U (en) | Temperature control device | |
| CN202209993U (en) | Warehouse humiture monitoring alarm device | |
| CN202350908U (en) | Intelligent monitor for vibration and temperature | |
| CN202350943U (en) | Temperature transmitter | |
| CN204203150U (en) | A kind of sulfur hexafluoride micro water density on-Line Monitor Device | |
| CN202350927U (en) | Intelligently universal digital display device | |
| CN203117697U (en) | Current monitoring module | |
| CN203037609U (en) | Humidity transmitter | |
| CN202066614U (en) | Fixed type temperature sensor for metering plant | |
| CN202362263U (en) | Novel intelligent gas detector | |
| CN201130036Y (en) | High temperature resistant and corrosion resistant two-wire system humiture transmitter | |
| CN105509809A (en) | Temperature transmitter with detection function | |
| CN203561476U (en) | Electric pressure cooker and pressure detection device thereof | |
| CN202350904U (en) | Integrated vibration transmitter | |
| CN203561644U (en) | Thermal diffusion principle-based flow velocity detection system | |
| CN201497595U (en) | Transformer temperature measurer | |
| CN202348354U (en) | Intelligent thermal expansion monitoring instrument | |
| CN202562654U (en) | Temperature transmitter detector | |
| CN204346603U (en) | A kind of thermal resistance | |
| CN203323909U (en) | Fan temperature measuring-point teletransmission device | |
| CN202869687U (en) | Temperature sensor for detecting temperature of liquid medium | |
| CN208887841U (en) | A kind of cell pressure calibrating installation | |
| CN202372274U (en) | Temperature detection circuit of residual electric current type electrical fire monitoring detector | |
| CN202974960U (en) | Ion chromatograph | |
| CN216207073U (en) | Micro-power consumption wireless temperature transmitter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20121021 |