PH METER
Technology background
There are known methods for preventing foreign matter from adhering to an object, and known methods for removing foreign matter adhering to an object.
For example, there is a known dirt adhesion prevention device that prevents dirt adhesion to a protection lens provided so as to cover a surface transmitting or receiving a detection signal of a sensor used under an environment where dust exists, the dirt adhesion prevention device including: a cover member covering the protection lens and having a gas flow path formed; and a gas supply unit supplying a gas to inside the cover member, in which the cover member includes a gas introduction unit into which a gas is introduced from the gas supply unit at a position away from the protection lens, a gas diffusion unit that diffuses the introduced gas in a direction of the protection lens, and a gas discharge unit that discharges a gas from the gas diffusion unit in a direction away from the protection lens at a position corresponding to the protection lens, and the gas diffusion unit has a cuboid shape.
There is a known method in which a hoisting body mounted with a glass surface detection sensor, a glass surface cleaning device, and a photocatalytic film formation device moves laterally and up and down along a glass surface of a building, the glass surface detection sensor detects a position and a size of a glass surface of a building, and then the glass surface cleaning device cleans the glass surface, and the photocatalytic film formation device forms a photocatalytic film on the glass surface.
Current Problems
Recently, hydroponic culture is widely practiced.
PH sensors that measure the PH of an aqueous solution used for hydroponic culture are known.
For example, a PH sensor having a surface covered with a glass film is left immersed in an aqueous solution, and dirt adheres to the glass film.
Due to this, it is preferable to immerse a PH sensor in an aqueous solution at the time of measurement and not to immerse a PH sensor in an aqueous solution at the time of non-measurement.
This measurement is always performed manually.
However, there is a problem that manual measurement is troublesome.
measurement of PH of an aqueous solution.
Means for Solving Problems
In order to achieve the above object, the disclosed meter is provided.
This measurement device includes a base including a supporting portion forming a fulcrum; and a rod-shaped body including a supported portion supported by the supporting portion, provided with a measurement unit on one side across the supported portion, and is provided with a storage unit storing a fluid on the other side, in which the rod-shaped body keeps horizontal when the storage unit is filled with a fluid, and the rod-shaped body inclines on the measurement unit side when the storage unit is not filled with a fluid, and the storage unit is immersed into a solution.
This can achieve automation of measurement of a solution.
Scope of Claims
[Claim 1]
A measurement device comprising of a base including a supporting portion forming a fulcrum; and a rod-shaped body including a supported portion supported by the supporting portion, provided with a measurement unit on one side across the supported portion, and is provided with a storage unit storing a fluid on the other side, wherein the rod-shaped body keeps horizontal when the storage unit is filled with a fluid, and the rod-shaped body inclines on the measurement unit side when the storage unit is not filled with a fluid, and the storage unit is immersed into a solution.
[Claim 2]
The measurement device according to claim 1, wherein when the rod-shaped body inclines on the storage unit side, a fluid stored in the storage unit flows out of the storage unit and the rod-shaped body inclines on a measurement side.
[Claim 3]
The measurement device according to claim 1, further comprising of a power unit that inclines the rod-shaped body on the storage unit side.
[Claim 4]
The measurement device according to claim 3, wherein the power unit includes a second installation object including a supporting portion forming a fulcrum and a second rod-shaped body including a supported portion supported by the supporting portion and is provided with a second storage unit storing a fluid on one side across the supported portion, the second rod-shaped body inclines on an opposite side to a side provided with the second storage unit when a fluid stored in the second storage unit is within a predetermined amount, and the rod-shaped body inclines on the storage unit side due to an own weight acting on the other end of the rod-shaped body when a fluid stored in the second storage unit is greater than a predetermined amount.
[Claim 5]
The measurement device according to claim 1, wherein a pipe through which a cleaning liquid passes is disposed inside the rod-shaped body, and the cleaning liquid passes through the pipe and is supplied to the measurement unit when the rod-shaped body is kept horizontal.
[Claim 6]
The measurement device according to claim 5, further comprising of an accommodation body including an opening, accommodating the measurement unit, and storing a cleaning liquid to be supplied to the measurement unit, wherein the cleaning liquid flows out of the opening when the rod-shaped body inclines on the measurement unit side.