CN209085672U - A kind of multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor - Google Patents
A kind of multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor Download PDFInfo
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- CN209085672U CN209085672U CN201822008611.7U CN201822008611U CN209085672U CN 209085672 U CN209085672 U CN 209085672U CN 201822008611 U CN201822008611 U CN 201822008611U CN 209085672 U CN209085672 U CN 209085672U
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Abstract
The utility model provides a kind of multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor, including sensor outer housing, probe and data-interface, sensor outer housing include shell and tail-hood；The root of probe is assemblied in shell, and probe stretches out in shell；Probe includes frequency signal probe and the three piece reference probes uniformly distributed around frequency signal probe surrounding；One root reference probe is temperature sense probe, temperature sense probe built-in temperature sensor；Data-interface is located on tail-hood.The utility model is using innovative structure and measuring technique, by high precision soil temperature sensor, Soil Moisture Sensor and soil salt (EC) sensor is ingenious is combined together, realize the temperature measurement function of can match in excellence or beauty seperated soil temperature sensor measuring speed and precision, it can measure temperature, humidity and the salt content of soil, it can be mutually compensated between each measurement data, keep measurement result more accurate, has great importance to the warm and humid salt measurement of soil.
Description
Technical field
The utility model relates to Soil Testing field, specially a kind of multifrequency multiplexing probe-type Soil Temperature And Moisture salt one
Sensor.
Background technique
The prior art is mostly split type sensor, such as soil temperature sensor, soil temperature-moisture sensor and soil salt
Sensor.Although independent soil temperature sensor measuring speed is fast, precision is higher, right parameter is relatively single.Soil temperature and humidity
Temperature sensor is built in the shell of sensor by integrative sensor mostly, and probe is connect with temperature sensor, and temperature is surveyed
Quantitative response is slow, and error is larger, is not suitable for speed survey and the output of current mode pick-up.Soil salinity sensor generally use ceramic electrode or
The additional transmitter of person's graphite electrode is made, very long using the sensor response time of ceramic electrode, without practical application
Value, although the soil moisture content lower limit of graphite electrode is very high, big using the sensor reaction of graphite electrode than very fast
It can not effectively measure in the natural soils of part, be deposited when only restricting water supply and saturated soil or test after taking soil, and measuring in aqueous solution
In more serious edge effect, and since this salinity measures no soil moisture auxiliary, conductivity information, nothing can only be obtained
Method obtains effective practical salinity information, is not particularly suited for sensing online and is used.It is needed in the measurement soil moisture, humidity, salt timesharing
Otherwise same equipment is detected, and detection effect is bad, seriously affects the accurate detection of soil moisture content.
Accordingly, it is desirable to provide a kind of be directed to the insufficient improved technology scheme of the above-mentioned prior art.
Utility model content
The purpose of this utility model is to provide a kind of multifrequencies to be multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, at least
It solves existing soil moisture content detection device to have a single function, measures the problem of temperature is inaccurate, and the scope of application is limited to.
To achieve the goals above, the utility model provides the following technical solutions:
A kind of multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor, the Soil Temperature And Moisture salt integrative sensor include:
Sensor outer housing, the sensor outer housing include shell and tail-hood, and the tail-hood is mounted on the tail end of the shell；
Probe, the root of the probe are assemblied in the shell, and the probe stretches out in the shell；The probe
Including frequency signal probe and the more piece reference probes uniformly distributed around the frequency signal probe surrounding；In the reference probe extremely
A few reference probe is temperature sense probe, and the temperature sense probe is hollow structure, hollow structure built-in temperature sensing
Device；
Data-interface, the data-interface are located on the tail-hood.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the probe length is 50-
90mm。
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the probe and the sensing
It is connected through a screw thread between device shell.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the temperature sense probe
Outer diameter is 3mm.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the temperature sensor is micro-
Type PT100 platinum resistance.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the quantity of the reference probe
It is 3, the quantity of the temperature sense probe is 1.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the shell is cylindrical
Hollow structure, the tail-hood are cylindrical hollow structure.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the tail-hood and the shell
Between be connected through a screw thread.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the probe and the shell
Between airtight connection, airtight connection between the tail-hood and the shell, closed company between the tail-hood and the data-interface
It connects.
Multifrequency as described above is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, it is preferable that the data-interface is RS485
Digital interface.
Compared with the immediate prior art, the technical solution that the utility model supplies has following excellent effect:
The utility model is using innovative structure and measuring technique, by high precision soil temperature sensor, soil water-containing
Quantity sensor and soil salt (EC) sensor is ingenious is combined together, realizes the seperated soil temperature sensor measurement that can match in excellence or beauty
The temperature measurement function of speed and precision, the soil that can measure two kinds of water content parameters such as soil saturation degree and volume moisture content are wet
Degree measurement function, and have the online soil salt measurement function of humidity compensation.The soil moisture of this sensor measures speed
It spends up to 10 seconds grades, for precision up to 0.2 DEG C of grade in gamut scope, the moisture measurement linearity is equal in a variety of soil soil properties
90% or more the linearity, part loam and sandy soil be can reach up to 99% linearity, and the soil moisture content of soil salt
(volumetric ratio) lower limit is up to 15% hereinafter, most of normal soil can get trend data, and soil salt information is also reversed
Soil moisture is compensated, makes the adaptation range of soil humidity measuring wider.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
Wherein:
Fig. 1 is that the multifrequency of the utility model specific embodiment is multiplexed the integrative sensor structural representation of probe-type Soil Temperature And Moisture salt
Figure.
In figure: 1, shell；2, tail-hood；3, data-interface 4, frequency signal probe；5, temperature sense probe.
Specific embodiment
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that not conflicting
In the case where, the features in the embodiments and the embodiments of the present application can be combined with each other.
In the description of the present invention, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" is to be based on the orientation or positional relationship shown in the drawings,
It is merely for convenience of description the utility model rather than requires the utility model that must be constructed and operated in a specific orientation, therefore
It should not be understood as the limitation to utility model.Term used in the utility model " connected ", " connection " shall be understood in a broad sense, example
Such as, it may be a fixed connection, may be a detachable connection；It can be directly connected, the indirect phase of intermediate member can also be passed through
Even, for the ordinary skill in the art, the concrete meaning of above-mentioned term can be understood as the case may be.
Embodiment according to the present utility model, as shown in Figure 1, the utility model provides a kind of multifrequency multiplexing probe-type soil
Warm and humid salt integrative sensor, Soil Temperature And Moisture salt integrative sensor include:
Sensor outer housing, sensor outer housing include shell 1 and tail-hood 2, and tail-hood 2 is mounted on the tail end of shell 1；Shell 1 is
Cylindrical hollow structure, tail-hood 2 are cylindrical hollow structure；It is connected through a screw thread between tail-hood 2 and shell 1.In this reality
With in novel embodiment, shell 1 using using can the PTFE/PE material of high-low temperature resistant be integrally machined molding, shell by CNC
1 is cool tone white or green, is avoided using aging caused by overlong time.Production cost when for the production of reduction amount metaplasia,
Weather-proof MODIFIED PP injection molding can also be used in shell 1, and 1 color of shell still selects cool tone such as white or green.In order to make to pass
Sensor is easy to use portable, what the multifrequency multiplexing probe-type Soil Temperature And Moisture salt provided in the embodiments of the present invention integrally sensed
1 outer diameter of shell is 36mm.Internal height is integrated, portable accurate to realize flexibly operation.
Probe, the root of probe are assemblied in shell 1, and probe stretches out in shell 1；Probe includes frequency signal probe 4
With the three piece reference probes uniformly distributed around 4 surrounding of frequency signal probe；At least one reference probe is temperature sense in reference probe
Probe 5 is answered, temperature sense probe 5 is hollow structure, and hollow structure built-in temperature sensor, temperature sensor is miniature PT100
Platinum resistance, by the way that the temperature sensor is built in inside hollow temperature sense probe 5, can quick response temperature change,
Have great importance to quick and precisely thermometric.Remaining two reference probe is separately connected Soil Moisture Sensor and soil salt
Divide (EC) sensor.In the embodiments of the present invention, probe detects form using four pin types, and probe is the stainless steel of resistance to electrolysis
Material, about 70mm length, the outer diameter of temperature sense probe 5 are 3mm.Humidity sensor uses FD frequency domain measurement principle, measurement master
Frequency 100MHZ can export saturation ratio water content and volumetric water content simultaneously.Moisture measurement has automatic zero point Protection Counter Functions,
Preceding automatic measurement is measured every time and compares sensor zero point.Meanwhile moisture measurement has automatic temperature compensation function, it can not be by
Temperature sensor and pass through internal reference channel realize temperature-compensating.Measurement frequency range of the measurement of salinity using three multiplexings, line
Property degree better than single frequency band measure.It is provided simultaneously with humidity compensation function, salinity initial data is compensated according to humidity volume data, it can
It obtains being influenced lesser soil salt absolute value by soil moisture.Salinity measurement data can be reversed compensation soil moisture simultaneously,
Soil moisture is improved to the accuracy of measurement of different salt content soil.In the embodiments of the present invention, sensor has more
Up to the correction table function in ten channels, the functions such as achievable sensor digital calibration, analog calibration, compensation calibration.This is practical new
The multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor of type when in use can be separately as soil temperature-moisture sensor, soil
Earth humidity salt sub-sensor, soil salinity sensor or Soil Temperature And Moisture salt integrative sensor export flexibly configurable, both met
The requirement of exclusive use, can also be with the temperature of composite measurement soil, humidity and salt content data.The soil moisture of this sensor
Measuring speed was up to 10 seconds grades, and precision is up to 0.2 DEG C of grade in gamut scope, and the moisture measurement linearity is in a variety of soil soil
90% or more the linearity, part loam and sandy soil be can reach in matter up to 99% linearity, moisture measurement is suitable for 0-
The salty soil of 5mS/cm range, salinity measure the upper limit up to 15mS/cm, and under the soil moisture content (volumetric ratio) of soil salt
Limit reachable 15% is hereinafter, most of normal soil can get trend data, and also Contrary compensation soil is wet for soil salt information
Degree, makes the adaptation range of soil humidity measuring wider.
Data-interface 3, data-interface 3 is located on tail-hood 2, and in the embodiments of the present invention, data-interface 3 is used
RS485 digital interface.
In order to which entire multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor can be used in the case where disliking slightly environment, in this reality
With in novel embodiment, airtight connection between probe and shell 1, airtight connection between tail-hood 2 and shell 1, tail-hood 2 and data
Airtight connection between interface 3.Resin encapsulating is carried out in shell 1, allows open-air exposure, water logging burial and cryogenic freezing.This sensing
Device is completely waterproof, can be resistant to -40~80 DEG C for a long time, 100 DEG C of short-term tolerance or more high temperature.
In conclusion the utility model is using innovative structure and measuring technique, by high precision soil temperature sensor,
Soil Moisture Sensor and soil salt (EC) sensor is ingenious is combined together, realizes the seperated soil moisture that can match in excellence or beauty and passes
The temperature measurement function of sensor measuring speed and precision can measure two kinds of water content parameters such as soil saturation degree and volume moisture content
Soil humidity measuring function, and have humidity compensation online soil salt measurement function.The soil temperature of this sensor
Measuring speed is spent up to 10 seconds grades, and precision is up to 0.2 DEG C of grade in gamut scope, and the moisture measurement linearity is in a variety of soil
90% or more the linearity, part loam and sandy soil be can reach in soil property up to 99% linearity, and the soil of soil salt
Earth water content (volumetric ratio) lower limit is up to 15% hereinafter, most of normal soil can get trend data, and soil salt is believed
Also Contrary compensation soil moisture is ceased, makes the adaptation range of soil humidity measuring wider.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for the skill of this field
For art personnel, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, made
Any modification, equivalent substitution, improvement and etc., should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of multifrequency is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the Soil Temperature And Moisture salt integrally passes
Sensor includes:
Sensor outer housing, the sensor outer housing include shell and tail-hood, and the tail-hood is mounted on the tail end of the shell；
Probe, the root of the probe are assemblied in the shell, and the probe stretches out in the shell；The probe includes
Frequency signal probe and the more piece reference probes uniformly distributed around the frequency signal probe surrounding；It include extremely in the reference probe
A few temperature sense probe, the temperature sense probe are hollow structure, hollow structure built-in temperature sensor；
Data-interface, the data-interface are located on the tail-hood.
2. multifrequency as described in claim 1 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the probe
Length is 50-90mm.
3. multifrequency as described in claim 1 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the probe
It is connected through a screw thread between the sensor outer housing.
4. multifrequency as described in claim 1 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the temperature
The outer diameter of inducing probes is 3mm.
5. multifrequency as described in claim 1 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the temperature
Sensor is miniature PT100 platinum resistance.
6. multifrequency as described in claim 1 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the reference
The quantity of probe is 3, and the quantity of the temperature sense probe is 1.
7. multifrequency as described in claim 1 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the shell
For cylindrical hollow structure, the tail-hood is cylindrical hollow structure.
8. multifrequency as claimed in claim 7 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the tail-hood
It is connected through a screw thread between the shell.
9. multifrequency as claimed in claim 7 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the probe
The airtight connection between the shell, airtight connection between the tail-hood and the shell, the tail-hood and the data-interface
Between airtight connection.
10. multifrequency as described in claim 1 is multiplexed probe-type Soil Temperature And Moisture salt integrative sensor, which is characterized in that the number
It is RS485 digital interface according to interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008611.7U CN209085672U (en) | 2018-12-03 | 2018-12-03 | A kind of multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822008611.7U CN209085672U (en) | 2018-12-03 | 2018-12-03 | A kind of multifrequency multiplexing probe-type Soil Temperature And Moisture salt integrative sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458484A (en) * | 2020-05-28 | 2020-07-28 | 邯郸市耘农智慧农业科技有限公司 | Wisdom agricultural is with small-size soil temperature and humidity salt sensor |
| CN113466437A (en) * | 2021-06-24 | 2021-10-01 | 山东彪威仪器有限公司 | Portable crude oil water content tester |
-
2018
- 2018-12-03 CN CN201822008611.7U patent/CN209085672U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458484A (en) * | 2020-05-28 | 2020-07-28 | 邯郸市耘农智慧农业科技有限公司 | Wisdom agricultural is with small-size soil temperature and humidity salt sensor |
| CN113466437A (en) * | 2021-06-24 | 2021-10-01 | 山东彪威仪器有限公司 | Portable crude oil water content tester |
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