CN202748332U - Portable soil humidity testing device - Google Patents
Portable soil humidity testing device Download PDFInfo
- Publication number
- CN202748332U CN202748332U CN 201220378074 CN201220378074U CN202748332U CN 202748332 U CN202748332 U CN 202748332U CN 201220378074 CN201220378074 CN 201220378074 CN 201220378074 U CN201220378074 U CN 201220378074U CN 202748332 U CN202748332 U CN 202748332U
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- emitting diode
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Abstract
Provided is a portable soil humidity testing device. An anode of a battery is connected with the input end of a voltage stabilizing block through a switch, the output end of the voltage stabilizing block is connected with a capacitor anode and a first contact pin, a second contact pin is connected with an anode of a first light-emitting diode and one end of a first resistor, the other end of the first resistor is connected with one end of a variable resistor, a cathode of the first light-emitting diode is connected with an anode of a second light-emitting diode and one end of a second resistor, a cathode of the second light-emitting diode is connected with an anode of a third light-emitting diode and one end of a third resistor, and a cathode of the third light-emitting diode is connected with one end of a fourth resistor; and the other end of the second resistor, the other end of the third resistor, the other end of the fourth resistor, the other end of the variable resistor, a cathode of a capacitor, the ground wire end of the voltage stabilizing block and a cathode of the battery are connected together. Compared with the prior art, the portable soil humidity testing device has the advantages of being simple in structure, convenient to use, ingenious to design, convenient to carry and high in measurement accuracy.
Description
Technical field
The utility model relates to the soil humidity measuring technical field, is specifically related to a kind of portable soil humidity measurement device.
Background technology
In plant and flower culture process, the staff need to get hold of soil moisture, in time pouring.As grasp the time of bad pouring and water the water yield, will cause plant and flowers dead, thereby give people's economic loss, also can cause on people's psychology bad impact.At present, people adopt feel and range estimation mode to judge soil moisture more, and this mode not only wastes time and energy, and measure inaccurately, the excessive or not enough phenomenon of pouring often occurs and occur, and are very easy to cause plant and flowers dead, make troubles to work.
The utility model content
The purpose of this utility model is exactly the defective that exists for prior art, and a kind of portable soil humidity measurement device is provided.
Its technical scheme is: be comprised of battery, switch, regulator block, electric capacity, variable resistor, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first light emitting diode, the second light emitting diode, the 3rd light emitting diode, the first contact pin and the second contact pin.The positive pole of battery is connected with the input end of regulator block by switch, the output terminal of regulator block is connected with anodal and first contact pin of electric capacity, the second contact pin is connected with an end anodal and the first resistance of the first light emitting diode, the other end of the first resistance is connected with a variable-resistance end, the negative pole of the first light emitting diode is connected with an end anodal and the second resistance of the second light emitting diode, one end anodal and the 3rd resistance of the negative pole of the second light emitting diode and the 3rd light emitting diode is connected, the 3rd light emitting diode negative pole be connected with an end of the 4th resistance; The negative pole of the other end of the other end of the other end of described the second resistance, the 3rd resistance, the 4th resistance, the variable-resistance other end, electric capacity, the ground terminal of regulator block and the negative pole of battery connect.
Wherein, the voltage of described battery is 9V.The model of described regulator block is 78L05.
The utility model has simple in structure, easy to use, deft design compared with prior art, is convenient to carry and advantage that measuring accuracy is high.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model the first embodiment.
Embodiment
With reference to Fig. 1, a kind of portable soil humidity measurement device is comprised of battery DC, K switch, regulator block IC, capacitor C, variable resistor R, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the first light emitting diode L1, the second light emitting diode L2, the 3rd light emitting diode L3, the first contact pin CZ1 and the second contact pin CZ2.The positive pole of battery DC is connected by the input end of K switch with regulator block IC, the output terminal of regulator block IC is connected with the anodal and first contact pin CZ1 of capacitor C, the second contact pin CZ2 is connected with the end anodal and the first resistance R 1 of the first light emitting diode L1, the other end of the first resistance R 1 is connected with the end of variable resistor R, the negative pole of the first light emitting diode L1 is connected with the end anodal and the second resistance R 2 of the second light emitting diode L2, the end anodal and the 3rd resistance R 3 of the negative pole of the second light emitting diode L2 and the 3rd light emitting diode L3 is connected, the 3rd light emitting diode L3 negative pole be connected with an end of the 4th resistance R 4; The ground terminal of the other end of the other end of the other end of the other end of described the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, variable resistor R, the negative pole of capacitor C, regulator block IC and the negative pole of battery DC connect.Wherein, the voltage of described battery DC is 9V.The model of described regulator block IC is 78L05.
When making the utility model, element among the figure is installed in the lip pencil housing, the first light emitting diode L1, the second light emitting diode L2, the 3rd light emitting diode L3 expose housing, the first contact pin CZ1 and the second contact pin CZ2 adopt the metal of two aciculiforms to make, and be arranged side by side in the same end of housing, the interval is 1-3 centimetres between the two.
During use, the first contact pin CZ1 and the second contact pin CZ2 are inserted tested soil, opening switch K gets final product.When the first light emitting diode L1, the second light emitting diode L2, the 3rd light emitting diode L3 are all not luminous, illustrate that the soil lack of water is serious; When only having the first light emitting diode L1 luminous, the soil lack of water is described; When two of the first light emitting diode L1, the second light emitting diode L2 are luminous, illustrate that soil moisture is normal; When the first light emitting diode L1, the second light emitting diode L2, the 3rd light emitting diode L3 are all luminous, illustrate that soil moisture is excessive.
Claims (3)
1. portable soil humidity measurement device, by battery, switch, regulator block, electric capacity, variable resistor, the first resistance, the second resistance, the 3rd resistance, the 4th resistance, the first light emitting diode, the second light emitting diode, the 3rd light emitting diode, the first contact pin and the second contact pin form, it is characterized in that: the positive pole of battery is connected with the input end of regulator block by switch, the output terminal of regulator block is connected with anodal and first contact pin of electric capacity, the second contact pin is connected with an end anodal and the first resistance of the first light emitting diode, the other end of the first resistance is connected with a variable-resistance end, the negative pole of the first light emitting diode is connected with an end anodal and the second resistance of the second light emitting diode, one end anodal and the 3rd resistance of the negative pole of the second light emitting diode and the 3rd light emitting diode is connected, the 3rd light emitting diode negative pole be connected with an end of the 4th resistance; The negative pole of the other end of the other end of the other end of described the second resistance, the 3rd resistance, the 4th resistance, the variable-resistance other end, electric capacity, the ground terminal of regulator block and the negative pole of battery connect.
2. portable soil humidity measurement device according to claim 1, it is characterized in that: the voltage of described battery is 9V.
3. portable soil humidity measurement device according to claim 1, it is characterized in that: the model of described regulator block is 78L05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378074 CN202748332U (en) | 2012-08-02 | 2012-08-02 | Portable soil humidity testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220378074 CN202748332U (en) | 2012-08-02 | 2012-08-02 | Portable soil humidity testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202748332U true CN202748332U (en) | 2013-02-20 |
Family
ID=47707707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220378074 Expired - Fee Related CN202748332U (en) | 2012-08-02 | 2012-08-02 | Portable soil humidity testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202748332U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196957A (en) * | 2013-03-26 | 2013-07-10 | 重庆新派工业设计有限公司 | Potting humidity monitor |
-
2012
- 2012-08-02 CN CN 201220378074 patent/CN202748332U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196957A (en) * | 2013-03-26 | 2013-07-10 | 重庆新派工业设计有限公司 | Potting humidity monitor |
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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: 20130220 Termination date: 20130802 |