JP2008096165A - Net radiometer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively prevent a measurement fault such as a measurement error or measurement deficiency on radiation energy. <P>SOLUTION: This net radiometer is equipped with a net radiometer body comprising an arm part provided with a sensing part in the vicinity of its end which is a free end for determining radiation energy coming from the ground and the sky to measure a radiation balance from a difference in radiation energy between the two, and a fan-shaped member comprising a plurality of lustrous rod-like members radially stood on the arm part a prescribed space apart from the sensing part of the radiometer body. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a radiation balance meter for measuring radiation energy from the ground and the sky and measuring a radiation balance amount from a difference between the two radiation energies.

  In a power generation facility such as a nuclear power plant, for example, a radiation balance meter (see, for example, Patent Document 1) is used to continuously measure the amount of radiation balance for calculation of atmospheric stability. The radiation balance meter has a sensing part that measures the radiation energy from the ground and the sky and measures the amount of radiation balance from the difference between the two radiation energies. The sensitive part is covered with a transparent polyethylene windshield.

  Here, in a conventional radiation balance meter equipped with such a polyethylene windshield, the polyethylene windshield is easily destroyed, and in some cases, the sensitive part is destroyed, resulting in a measurement error of the radiation balance amount, or a continuous radiation balance amount. There is a problem that a measurement defect that makes measurement impossible occurs. These problems occur because the radiation balance is the place where birds fly, and the birds crawl many times trying to take the polyethylene windshield that covers the sensory part as a nesting material with a spear or the like. I know that. Such a problem is likely to occur particularly in the coastal area. This is because if the polyethylene windshield is torn or peeled off, the sensitive part is exposed to sea breeze.

Japanese Unexamined Patent Publication No. 60-1000072 (Fig. 1)

  In view of the circumstances described above, an object of the present invention is to provide a radiation balance meter that can effectively prevent measurement errors such as measurement errors or measurement defects of radiant energy.

  In the first aspect of the present invention that achieves the above object, a sensing part for measuring the radiation energy from the ground and the sky and measuring the radiation balance from the difference between the two radiation energy is provided in the vicinity of the free end. A radiation balance meter main body having an arm portion, and a fan-shaped member made of a plurality of rod-shaped members having a radiance standing radially on the arm portion spaced apart from the sensitive portion of the radiation balance meter main body. It is in the radiation balance meter characterized by being.

  In such a first aspect, the fan-shaped member prevents the bird from approaching the sensitive part, so that the measurement error of the radiant energy generated due to an action such as the bird grabbing the sensitive part and its surroundings with a cicada etc. Alternatively, measurement failures such as measurement defects can be effectively prevented, and the radiation balance can be measured well.

  According to a second aspect of the present invention, there is provided a radiation balance meter, wherein the fan-shaped member includes the rod-shaped member and a rod-shaped bridging member in which the tip portions of the adjacent rod-shaped members are connected to each other. .

  In the second aspect, since the defense range of the fan-shaped member is substantially increased by connecting the tip of the rod-shaped member with the bridging member, the bird's wings flying around the sensing part can easily come into contact with the fan-shaped member. It is possible to more effectively prevent the bird from approaching the sensitive part.

  A third aspect of the present invention is the radiation balance meter according to the second aspect, wherein the bridging member has a curved shape.

  In the third aspect, since the bridging member has a curved shape, the defense range is further increased, so that it is difficult for the bird to approach the trunk.

  According to a fourth aspect of the present invention, in the radiation balance meter according to any one of the first to third aspects, the fan-shaped member has a metallic luster.

  In the fourth aspect, by giving the fan-shaped member a metallic luster, it is possible to give a vigilance to the bird and more effectively prevent the bird from approaching the sensitive part.

  A fifth aspect of the present invention is the radiation balance meter according to any one of the first to fourth aspects, wherein the fan-shaped member is made of a metal exhibiting weather resistance.

  In this 5th aspect, since a fan-shaped member becomes what has weather resistance, the approach of the bird to a sensitive part can be prevented over a long period of time.

  A sixth aspect of the present invention is the radiation balance meter according to the fifth aspect, wherein the fan-shaped member is made of stainless steel.

  In the sixth aspect, a fan-shaped member showing weather resistance can be realized at low cost.

  A seventh aspect of the present invention is characterized in that at least one of the rod-shaped members is erected in a state where it is inclined by a predetermined amount toward the proximal end side opposite to the distal end of the arm portion. It exists in the radiation balance of the aspect in any one of 1-6.

  In the seventh aspect, by tilting the at least one rod-shaped member by a predetermined amount, it is possible to give a warning to the bird, and it is possible to more effectively prevent the bird from approaching the sensing part.

  The eighth aspect of the present invention is the radiation according to the seventh aspect, wherein the fan-shaped member is provided in a state inclined by a predetermined amount toward the base end side opposite to the tip end of the arm portion. It is in the balance.

  In the eighth aspect, by tilting the entire fan-shaped member by a predetermined amount, strong alertness can be given to the bird, and the bird can be more effectively prevented from approaching the sensing part.

  According to a ninth aspect of the present invention, in the first to eighth aspects, the at least one other rod-like member is erected on an upper portion of a housing that supports the arm portion of the radiation balance meter. It is in the radiation balance of any aspect.

  In the ninth aspect, it is possible to physically prevent birds from flying on the upper surface of the housing.

  A tenth aspect of the present invention is the radiation balance meter according to any one of the first to ninth aspects, wherein the other rod-shaped member has a curved shape.

  In the tenth aspect, it is possible to substantially increase the defense range of the other rod-shaped member.

  An eleventh aspect of the present invention is the radiation balance meter according to any one of the first to tenth aspects, wherein the sensitive part is covered with a transparent protective cover.

  In the eleventh aspect, even if a transparent protective cover that the bird intends to bring back as a nesting material is installed on the sensing part, the fan-shaped member can effectively prevent the bird from approaching the sensing part. The part can be more reliably protected from the external environment (for example, an environment exposed to wind, particularly sea breeze).

  Such a radiation balance meter of the present invention has a radiation portion having an arm portion provided with a sensing portion for measuring the amount of radiation balance from the difference between the radiant energy from the ground and the sky and provided near the tip which is a free end. Since it has a balance meter body and a fan-shaped member made up of a plurality of rod-shaped members having a radiance standing on the arm part spaced apart from the sensitive part of the radiation balance meter body by a fan-like member, Prevents the bird from approaching the sensitive area, and effectively prevents measurement errors such as measurement errors or measurement defects in the radiant energy caused by acts such as bird catching the sensitive area and its surroundings with a cicada etc. There is an effect that it is possible.

  Hereinafter, the present invention will be described in detail based on embodiments.

(Embodiment 1)
FIG. 1 is a perspective view showing a schematic configuration of a radiation balance meter according to Embodiment 1 of the present invention. A radiation balance meter 10 of this embodiment shown in FIG. 1 is placed on a support base 1 fixed to the ground or the like, measures radiation energy from the ground and the sky, and continuously calculates the radiation balance amount from the energy difference between the two. Specifically, it is provided on the radiation balance meter main body 12 having the arm member 11 constituting the arm portion whose free end is the distal end, and the arm member 11 of the radiation balance meter main body 12. It consists of a fan-shaped member 13.

  In addition, in this embodiment, the radiation balance main body 12 includes a housing 14 that is fixed on the support base 1 and that has a handle portion 14a on the upper surface. The arm member 11 is cantilevered. Note that the casing 14 and the arm member 11 are flush with each other in the upper surface, and the width of the upper surface of the casing 14 is wider than the width of the upper surface of the arm member 11.

  An air blower (not shown) is provided inside the housing 14 constituting the radiation balance main body 12, and the air blower of the housing 14 has an arm member constituting a duct having a rectangular cross section. 11 is connected. That is, the arm member 11 specifically constitutes a passage for carrying a fluid (for example, dry air) from the blower, the base end portion 11a on one end side in the longitudinal direction is connected to the housing 14, and the other end (free end) The sensing part 15 for measuring the radiation energy from the ground and the sky is provided at the end part 11b on the (end) side.

  And the sensitive part 15 provided in the front-end | tip part 11b of such an arm member 11 has the upper surface heat receiving plate 15a and the lower surface heat receiving plate 15b to which black coating was given, These upper surface heat receiving plate 15a and lower surface heat receiving plate 15b measures the temperature of heat radiated from the upper and lower surfaces, that is, the ground and the sky, and measures the amount of radiation balance based on the temperature difference. Such a sensitive part 15 is covered with a transparent protective cover 16 that transmits short wave and long wave radiation.

  Here, the protective cover 16 is made of a thin polyethylene film, and is configured to form a thin spherical polyethylene dome (polyethylene windshield) for wind protection by swelling in a spherical shape with dry air from the blower. For this reason, it has the fault that a bird is easy to break by acts, such as pinching with a cage. Note that dry air is blown to the upper surface heat receiving plate 15a and the lower surface heat receiving plate 15b of the sensing unit 15 through the passage of the arm member 11 from the air blower at the same wind speed, thereby generating condensation in the protective cover 16 and the like. Is preventing.

  A fan-shaped member 13 having a predetermined shape is provided on a part of the radiation balance main body 12, specifically, on the upper surface of the arm member 11 that is spaced from the sensing portion 15 toward the housing 14. The fan-shaped member 13 is erected in a direction intersecting the longitudinal direction of the arm member 11, for example, a direction orthogonal in the present embodiment. The fan-shaped member 13 of the present embodiment includes a rectangular fixed plate 21 fixed to the arm member 11, four bar-shaped members 22 erected on the fixed plate 21 in a radial manner, and the bar-shaped members 22. It is comprised with the bridge | crosslinking member 23 which couple | bonded the front-end | tip part of each other.

  Moreover, the rod-shaped member 22 and the bridging member 23 constituting the fan-shaped member 13 are glossy. That is, the fan-like member 13 has a gloss as a whole. As a result, the alertness of the bird can be beaten, and the bird can be effectively prevented from approaching the sensing unit 15. Further, the fan-shaped member 13 preferably has a metallic luster. Thereby, a stronger alertness can be given to the bird, and the bird can be more effectively prevented from approaching the sensing unit 15. Moreover, it is preferable to form the fan-shaped member 13 with the metal material which shows a weather resistance. As a result, the fan-shaped member 13 has a metallic luster and does not easily rust or deteriorate even when exposed to the atmosphere. Therefore, it is possible to prevent the bird from approaching the sensitive portion 15 for a long period of time. For example, in this embodiment, the rod-shaped member 22 and the bridging member 23 that constitute the fan-shaped member 13 are formed of stainless steel. This is because stainless steel is a material that has excellent weather resistance and a metallic luster, and that can produce the fan-shaped member 13 at low cost.

  Further, the rod-shaped member 22 constituting the fan-shaped member 13 preferably has a total length of about 20 to 30 cm and a thickness of about 2 to 3 mm, and the bridging member 23 has a thickness of about 1 to 2 mm. Is preferred. If each rod-like member 22 is too short, it will not be possible to give a bird's caution, and if the rod-like member 22 is too long or too thick or the bridging member 23 is too thick, it will adversely affect the measurement of the radiant energy of the sensitive part 15. Because there is a fear. The fan-shaped member 13 is preferably installed at a predetermined interval, for example, 10 to 20 cm away from the sensitive part 15 in consideration of the influence on the measurement of the radiant energy of the sensitive part 15.

  Furthermore, in this embodiment, since the several rod-shaped member 22 is connected with the bridge | crosslinking member 23, the defensive range of the fan-shaped member 13 becomes large substantially, and the housing | casing 14 around the sensing part 15, arm member 11, etc. The flying bird wings can easily come into contact with the fan-shaped member 13, and the bird can be more effectively prevented from approaching the sensing part 15. The overall shape of the bridging member 23 may be a linear shape or a curved shape, but is preferably a curved shape. In this embodiment, the bridging member 23 has a curved shape. As a result, the overall defense range of the fan-shaped member 13 becomes substantially larger than in the case of the linear shape, and the bird's wings easily come into contact with the fan-shaped member 13, whereby the bird further approaches the sensing part 15. It has the effect of becoming difficult.

  Here, the above-described fan-shaped member 13 is installed on the upper portion of the arm member 11 in the present embodiment, but this prevents the bird from flying directly on the arm member 11 or the housing 14 while temporarily housing it. This is because, even when a bird flies to the body 14, it is physically prevented by the fan-shaped member 13 from moving from the upper surface of the housing 14 to the sensing part 15 through the arm member 11.

  Further, in the present embodiment, another rod-shaped member 24, for example, a stainless steel wire, is wound on the housing 14 of the radiation balance main body 12, more specifically, on the handle portion 14a of the housing 14. Thus, the other rod-shaped member 24 is installed so as to be V-shaped as a whole. Thereby, it becomes difficult for the bird to fly to the housing 14 itself, and as a result, it is possible to more effectively prevent the bird from approaching the sensing unit 15.

  The overall shape of the other rod-shaped member 24 may be a straight shape or a curved shape, but is preferably a curved shape. Thereby, the defense range of the other rod-shaped member 24 is substantially widened. As a result, the bird's wings can easily come into contact with each other, and it is possible to effectively prevent the bird from flying against the housing 14. .

  As described above, the radiation balance meter 10 of the present embodiment has a fan-shaped member 13 provided on the arm member 11, and the fan-shaped member 13 is glossy, so that the bird approaches the sensitive part 15 in a fan shape. This can be effectively prevented by the member 13. Moreover, in this embodiment, since each rod-shaped member 22 which comprises the fan-shaped member 13 is connected by the bridging member 23, the defensive range of the fan-shaped member 13 becomes substantially wide, and a bird's feather | wing is fan-shaped member 13 Therefore, it is possible to more effectively prevent the bird from approaching the sensing part 15. Therefore, it is possible to effectively prevent measurement errors such as measurement errors or measurement defects of radiant energy generated due to an action such as a bird scolding the sensitive part 15 and its surroundings with a cocoon, etc. Weighing can be performed continuously and satisfactorily.

  In addition, even if the transparent protective cover 16 that the bird intends to take home as a nesting material is installed on the sensitive part 15 as in this embodiment, it is effective that the bird approaches the sensitive part 15 by the fan-shaped member 13 as described above. Therefore, the sensitive part 15 can be reliably protected from an external environment, for example, an environment exposed to wind, particularly sea breeze. Therefore, when the radiation balance meter 10 of this embodiment is installed in a coastal area, the radiation balance amount can be continuously and satisfactorily measured over a long period of time.

[Evaluation test]
The radiation balance meters of the test products 1 to 3 shown in FIG. FIG. 2 is a schematic diagram of a radiation balance meter of test products 1 to 3 related to the evaluation test.

(Test product 1)
A radiation balance meter in which one metal rod A was installed in the vertical direction on the upper surface of the arm member 11 and at a position 10 cm from the sensitive part 15 was designated as a test product 1 (see FIG. 2A).

(Test product 2)
One metal bar A is installed in the vertical direction on the upper surface of the arm member 11 and at a position 10 cm from the sensitive part. The radiation balance meter installed in 1 was designated as test product 2 (see FIG. 2B).

(Test product 3)
Instead of the metal rod A of the test products 1 and 2, a rod-shaped member 22 composed of four metal rods is erected in a radial manner, and the tip of each rod-shaped member 22 is bridged by a bridging member 23 composed of a wire. The radiation balance meter 10 in which the member 13 is installed and the other rod-shaped member 24 made of a wire is also installed in the handle portion 14a of the housing 14 in a V-shape is the test product 3 (invention product: see FIG. 2C) ). In addition, the wire which is the bridging member 23 of the test product 3 has a curved shape.

  First, when the specimen 1 was installed at a predetermined location and observed for several years, it was confirmed that the polyethylene dome was frequently damaged by the birds (about twice a year). The plate was also damaged. Next, although it changed to the specification of the test article 2, the trace which the bird flew to the sensory part vicinity was confirmed 16 days after the change. Next, when the specifications were changed to the test item 3, damage such as flying birds, polyethylene dome breakage, and sensory part damage did not occur even after 2 years, and continuous measurement of the radiation balance was good. Could be done.

(Embodiment 2)
FIG. 3 is an enlarged view of a main part of the radiation balance meter according to Embodiment 2 of the present invention. In the present embodiment, the same components as those in FIG. As shown in FIG. 3, the radiation balance meter 10A of the present embodiment is the same as that of the first embodiment described above except that the fan-shaped member 13A is inclined from the sensing unit 15 side to the housing 14 by a predetermined angle. This is the structure. As described above, in the present embodiment, by tilting the fan-shaped member 13A by a predetermined amount, it is possible to give a strong alertness to the bird and effectively prevent the bird from approaching the sensing unit 15. Moreover, since the fan-shaped member 13A is inclined and installed, it is easy for a bird in the sky to recognize the fan-shaped member 13, and a stronger alertness can be given to the bird.

(Other embodiments)
As mentioned above, although this invention was demonstrated based on Embodiment 1 and 2, this invention is not limited to Embodiment 1 and 2 mentioned above. For example, in Embodiments 1 and 2 described above, a plurality of rod-like members 22 are connected by the bridging member 23. However, the present invention is not limited to this, and the bridging member may not be provided.

  In the first and second embodiments described above, the other rod-shaped member 24 is installed on the handle portion 14a of the housing 14, but of course, the present invention is not limited to this, and such other rod-shaped member may not be installed. Also good.

  Furthermore, in Embodiment 2 mentioned above, although the fan-shaped member 13 whole was inclined and installed, of course, it is not limited to this, It is good also as a fan-shaped member by making 1 or several rod-shaped members 22 incline suitably.

  The present invention is also applicable to energy measuring devices other than radiant energy.

It is a perspective view which shows schematic structure of the radiation balance meter which concerns on Embodiment 1 of this invention. It is the schematic of the radiation balance meter of the test articles 1-3 which concern on an evaluation test. It is a principal part enlarged view of the radiation balance meter which concerns on Embodiment 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support stand 10 Radiation balance meter 11 Arm member 12 Radiation balance meter main body 13 Fan-shaped member 14 Case 15 Sensing part 16 Protective cover 21 Fixing plate 22 Bar-shaped member 23 Bridging member 24 Other rod-shaped members

Claims (11)

  A radiation balance meter body having an arm portion provided near the tip which is a free end for measuring a radiation balance amount from the difference between the radiant energy of the ground and the sky, and the radiation balance meter A radiation balance meter comprising: a fan-shaped member comprising a plurality of bar-shaped members having a radiance standing radially on the arm portion spaced apart from the sensitive portion of the main body.   The radiation balance meter according to claim 1, wherein the fan-shaped member includes the rod-shaped member and a rod-shaped bridging member in which tip portions of the adjacent rod-shaped members are connected to each other.   The radiation balance meter according to claim 2, wherein the bridging member has a curved shape.   The radiation balance meter according to claim 1, wherein the fan-shaped member has a metallic luster.   The radiation balance meter according to any one of claims 1 to 4, wherein the fan-shaped member is made of a metal exhibiting weather resistance.   6. The radiation balance meter according to claim 5, wherein the fan-shaped member is made of stainless steel.   The at least one said rod-shaped member is standingly arranged in the state inclined by predetermined amount toward the base end side opposite to the front-end | tip of the said arm part, The said any one of Claims 1-6 characterized by the above-mentioned. Radiation balance meter.   The radiation balance meter according to claim 7, wherein the fan-shaped member is provided in a state of being inclined by a predetermined amount toward a base end side opposite to a tip end of the arm portion.   The radiation balance meter according to any one of claims 1 to 8, wherein at least one other rod-shaped member is erected on an upper portion of a casing that supports the arm portion of the radiation balance meter. .   The radiation balance meter according to claim 1, wherein the other rod-shaped member has a curved shape.   The radiation balance meter according to claim 1, wherein the sensitive part is covered with a transparent protective cover.

Images