CN205192649U - Seismograph station high accuracy temperature measuring device - Google Patents
Seismograph station high accuracy temperature measuring device Download PDFInfo
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- CN205192649U CN205192649U CN201520873732.1U CN201520873732U CN205192649U CN 205192649 U CN205192649 U CN 205192649U CN 201520873732 U CN201520873732 U CN 201520873732U CN 205192649 U CN205192649 U CN 205192649U
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Abstract
The utility model provides a seismograph station high accuracy temperature measuring device, which comprises a temperature measuring probe, a housing, data acquisition and processing unit in the casing, this data acquisition and processing unit include main control chip, an analog -digital conversion circuit, differential amplification circuit, a liquid crystal display screen, the network module, the USB module, the temperature probe is including probe casing and temperature detection circuit wherein, this temperature detection circuit forms by temperature measuring resistor and standard resistance are parallelly connected, this temperature measuring resistor is formed by a plurality of pt1000 platinum series resistance, temperature detection circuit passes through differential amplification circuit, the mode conversion circuit is connected with main control chip's signal input part. The utility model discloses the ambient temperature of measurement seismometer that can be accurate to show in real time, measuring temperature data can be through network teletransmission to host computer.
Description
Technical field
The utility model relates to a kind of temperature measuring equipment, particularly relates to a kind of seismograph station high-resolution hydrocode device for monitor earthquake meter operating ambient temperature.
Background technology
Seismometer is a kind of device ground motion being changed into electric signal, and it is widely used in sensing earth shock signal in seismic observation system.The accuracy of detection of seismometer and sensitivity are subject to the impact of environment temperature, for the impact that detected temperatures environment produces different model seismometer performance, need to carry out on-line real time monitoring than operating ambient temperature when surveying to the seismometer of different model on the same stage at seismograph station.
Utility model content
In view of the foregoing, the purpose of this utility model is to provide a kind of seismograph station high-resolution hydrocode device, the environment temperature of seismometer can be measured in real time, accurately, and through the temperature data that Internet Transmission gathers, for research environment temperature provides Data support to the impact that different model seismometer produces.
For achieving the above object, the utility model is by the following technical solutions:
A kind of seismograph station high-resolution hydrocode device, comprises the data acquisition in temperature probe, housing, housing and processing unit,
This data acquisition and processing unit comprise main control chip, analog to digital conversion circuit, differential amplifier circuit,
Temperature probe comprises probing shell and temperature measurement circuit wherein, and this temperature measurement circuit is formed in parallel by temperature detecting resistance and measuring resistance, and this temperature detecting resistance is in series by multiple Pt1000 platinum resistance,
This temperature measurement circuit is connected with the signal input part of this main control chip by this differential amplifier circuit, mode switching circuit.
Further,
Described data acquisition and processing unit also comprise LCDs, mixed-media network modules mixed-media, USB module, the data terminal of this LCDs is connected with the data output end of described main control chip, and the I/O end of described main control chip is connected with the data terminal of this mixed-media network modules mixed-media, USB module respectively.
Described temperature detecting resistance and measuring resistance are respectively by a road constant current source power supply, each road constant current source be provided with a road exchanging electrical current switch between corresponding temperature detecting resistance or measuring resistance, the two-way control end of described main control chip is connected with two-way exchanging electrical current switch respectively, realizes switching for controlling two-way exchanging electrical current switch.
Described housing is provided with the first aviation plug for connecting described temperature probe, and for connecting the second aviation plug of power supply and network interface.
Described temperature detecting resistance is in series by ten Pt1000 platinum resistance.
The utility model has the advantage of:
Seismograph station high-resolution hydrocode device of the present utility model, the environment temperature of seismometer can be measured accurately and show in real time, the temperature data that simultaneously can gather through Internet Transmission, for follow-up study environment temperature provides Data support to the impact that different model seismometer produces; Device has larger measurement range and higher measuring accuracy, both can measure the environment temperature of seismometer, can measure again the temperature of seismometer inside.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of data acquisition of the present utility model and processing unit.
Fig. 2 is the circuit theory diagrams of temperature measurement circuit of the present utility model, differential amplifier circuit, constant-current source circuit part.
Fig. 3 is schematic appearance of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structured flowchart of data acquisition of the present utility model and processing unit, as shown in the figure, seismograph station high-resolution hydrocode device disclosed in the utility model, comprise temperature probe, housing 1, data acquisition in housing and processing unit, data acquisition and processing unit comprise main control chip, analog to digital conversion circuit, differential amplifier circuit, LCDs 11, mixed-media network modules mixed-media, USB module etc., temperature probe passes through differential amplifier circuit, analog to digital conversion circuit is connected with the signal input part of main control chip, the data terminal of LCDs is connected with the data output end of main control chip, main control chip I/O end respectively with mixed-media network modules mixed-media, the data terminal of USB module is connected,
As shown in Figure 2, temperature probe comprises probing shell and temperature measurement circuit wherein, this temperature measurement circuit is formed in parallel (dotted portion) by temperature detecting resistance and measuring resistance, temperature detecting resistance is in series by multiple Pt1000 platinum resistance, the differential voltage signal of temperature detecting resistance and measuring resistance amplifies through differential amplifier circuit (solid box part B), analog to digital conversion circuit transfers to main control chip after being converted to digital voltage signal, after main control chip receives this digital voltage signal, current temperature value is shown in real time through LCDs, simultaneously can by the temperature data that gathers through mixed-media network modules mixed-media remote transmission to host computer, also data can be stored to movable storage device (portable hard drive through USB module, USB flash disk etc.).
As shown in Figure 2, two-way constant current source (solid box part A) is for driving temperature detecting resistance and measuring resistance respectively, for avoiding two-way constant current source electric current inconsistent and introducing error, two-way exchanging electrical current K switch 11, K12 and K21, K22 is set up between two-way constant current source and temperature detecting resistance, measuring resistance, the two-way control end of main control chip is connected with two-way exchanging electrical current switch respectively, realize switching (mutual on/off) for controlling two-way exchanging electrical current switch, to the temperature measurement result of twice before and after switching, average as final measurement.
As shown in Figure 3, housing both sides are arranged with the first aviation plug 12 and the second aviation plug 13, the data acquisition of temperature probe in the first aviation plug and housing and processing unit are electrically connected, and external power supply and network interface are electrically connected by the data acquisition in the second aviation plug and housing and processing unit.
The temperature coefficient of described Pt1000 platinum resistance is 0.3851%, there is good linear and reappearance, in order to improve thermometric resolving power, in preferred embodiment, temperature detecting resistance is in series by ten Pt1000 platinum resistance, and measuring resistance selects the resistance of the precision of high precision, Low Drift Temperature, and temperature-measuring range can reach-25 DEG C ~ 50 DEG C, measuring accuracy can reach 5/10000ths degrees Celsius, not only can measure the environment temperature of seismometer, but also can measure the internal temperature of seismometer.
In specific embodiment, mixed-media network modules mixed-media adopts W5100 network chip, this chip internal is integrated with 10/100M ethernet controller, the ICP/IP protocol stack of devices at full hardware, ethernet medium transport layer (MAC) and Physical layer (PHY), communicated by SPI between this mixed-media network modules mixed-media with main control chip, in the utility model, device adopts ICP/IP protocol to carry out network service.
Main control chip can adopt ARM7 series processors chip.USB module adopts USB2.0 interface, and this module supports FAT/FAT32 file system, exchanges data with main control chip by SPI interface.LCDs adopts the display screen of 16X2, and often row can show 16 characters, totally 2 row.
For adapting to the working environment of seismometer, wide temperature (-40 DEG C ~ 80 DEG C) all selected by whole devices of device, the device work of Low Drift Temperature (3 ~ 5PPM/ DEG C), analog to digital conversion circuit is low speed sampling, analog-to-digital precision and dynamic range can be ensured, also meet the needs of measuring tempeature low frequency variations.
Specifications of the present utility model is:
Precision: 5/10000ths degrees Celsius
Temperature-measuring range :-25 DEG C ~ 50 DEG C
Sampling interval: 10S
AD figure place: 24bit
Working power: 12V direct current
Working current: 260mA
Data export: network (TCP/IP)
Memory device: USB flash disk (4G)
Volume: 12cmX8cmX8cm (not containing temperature probe).
The above know-why being preferred embodiment of the present utility model and using; for a person skilled in the art; when not deviating from spirit and scope of the present utility model; any based on apparent changes such as the equivalent transformation on technical solutions of the utility model basis, simple replacements, all belong within the utility model protection domain.
Claims (5)
1. seismograph station high-resolution hydrocode device, is characterized in that, comprises the data acquisition in temperature probe, housing, housing and processing unit,
This data acquisition and processing unit comprise main control chip, analog to digital conversion circuit, differential amplifier circuit,
Temperature probe comprises probing shell and temperature measurement circuit wherein, and this temperature measurement circuit is formed in parallel by temperature detecting resistance and measuring resistance, and this temperature detecting resistance is in series by multiple Pt1000 platinum resistance,
This temperature measurement circuit is connected with the signal input part of this main control chip by this differential amplifier circuit, mode switching circuit.
2. seismograph station high-resolution hydrocode device as claimed in claim 1, it is characterized in that, described data acquisition and processing unit also comprise LCDs, mixed-media network modules mixed-media, USB module, the data terminal of this LCDs is connected with the data output end of described main control chip, and the I/O end of described main control chip is connected with the data terminal of this mixed-media network modules mixed-media, USB module respectively.
3. seismograph station high-resolution hydrocode device as claimed in claim 1, it is characterized in that, described temperature detecting resistance and measuring resistance are respectively by a road constant current source power supply, each road constant current source be provided with a road exchanging electrical current switch between corresponding temperature detecting resistance or measuring resistance, the two-way control end of described main control chip is connected with two-way exchanging electrical current switch respectively, realizes switching for controlling two-way exchanging electrical current switch.
4. seismograph station high-resolution hydrocode device as claimed in claim 1, it is characterized in that, described housing is provided with the first aviation plug for connecting described temperature probe, and for connecting the second aviation plug of power supply and network interface.
5. seismograph station high-resolution hydrocode device as claimed in claim 1, it is characterized in that, described temperature detecting resistance is in series by ten Pt1000 platinum resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520873732.1U CN205192649U (en) | 2015-11-04 | 2015-11-04 | Seismograph station high accuracy temperature measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520873732.1U CN205192649U (en) | 2015-11-04 | 2015-11-04 | Seismograph station high accuracy temperature measuring device |
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| CN205192649U true CN205192649U (en) | 2016-04-27 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441613A (en) * | 2016-08-02 | 2017-02-22 | 无锡研奥电子科技有限公司 | Temperature sensor system |
| CN110617893A (en) * | 2019-09-20 | 2019-12-27 | 中国科学院长春光学精密机械与物理研究所 | Temperature measurement circuit of general interface output |
| CN111387972A (en) * | 2020-04-20 | 2020-07-10 | 广州易风健康科技股份有限公司 | Weak current signal acquisition circuit and have this acquisition circuit's seat circle and toilet lid |
| CN111443383A (en) * | 2020-04-07 | 2020-07-24 | 中国地震局地震预测研究所 | Data acquisition device for coal mine |
| WO2020164286A1 (en) * | 2019-02-13 | 2020-08-20 | 深圳市赛为智能股份有限公司 | On-board monitoring system for tethered unmanned aerial vehicle, and monitoring method therefor |
| CN114144645A (en) * | 2019-07-31 | 2022-03-04 | 三菱电机大楼技术服务株式会社 | Temperature measurement system, temperature measurement sensor unit, and method for changing structure of temperature measurement system |
-
2015
- 2015-11-04 CN CN201520873732.1U patent/CN205192649U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106441613A (en) * | 2016-08-02 | 2017-02-22 | 无锡研奥电子科技有限公司 | Temperature sensor system |
| WO2020164286A1 (en) * | 2019-02-13 | 2020-08-20 | 深圳市赛为智能股份有限公司 | On-board monitoring system for tethered unmanned aerial vehicle, and monitoring method therefor |
| CN114144645A (en) * | 2019-07-31 | 2022-03-04 | 三菱电机大楼技术服务株式会社 | Temperature measurement system, temperature measurement sensor unit, and method for changing structure of temperature measurement system |
| CN110617893A (en) * | 2019-09-20 | 2019-12-27 | 中国科学院长春光学精密机械与物理研究所 | Temperature measurement circuit of general interface output |
| CN111443383A (en) * | 2020-04-07 | 2020-07-24 | 中国地震局地震预测研究所 | Data acquisition device for coal mine |
| CN111387972A (en) * | 2020-04-20 | 2020-07-10 | 广州易风健康科技股份有限公司 | Weak current signal acquisition circuit and have this acquisition circuit's seat circle and toilet lid |
| CN111387972B (en) * | 2020-04-20 | 2023-10-31 | 广州易风健康科技股份有限公司 | Weak current signal acquisition circuit and seat ring and toilet cover with same |
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