JPS60210730A - Underground temperature measuring apparatus - Google Patents

Abstract

PURPOSE:To facilitage the temperature measuring operation by providing temperature measuring elements at a plurality of tiny holes bored on a driving pipe made of material with a large mechanical strength but not so high in the heat conductivity along the length thereof while the surface of the elements is covered with a protective film better in the heat conductivity. CONSTITUTION:A pipe 1 which will be driven into the ground 2 is made of material with a large mechanical strength but not so high in the heat conductivity, for example, stainless steel. Tiny holes 3 are bored at positions on a pipe 1 along the length thereof, small-diameter base sections 5 are fitted into the tiny holes 3 and a plastic insulating packing 4 is provided to be fixed on the pipe 1 with an adhesive 6. A dent 7 is formed on the head 8 of the packing 4 and provided with a temperature measuring element 9 comprising a thermocouple. A lead 10 inserted into the pipe 1 is run through the element 9 and the surface of the temperature measuring element 9 of the dent 7 is protected with a protective film 11 made of material with a large mechanical strength and a better heat conductivity, for example, silicon based rubber material.

Description

[Detailed Description of the Invention] [Prior Art] Conventionally, underground temperature has been measured by digging a hole in the ground and embedding a temperature probe in the hole. In order to measure the temperature at a location, the disadvantage is that the configuration must be large-scale.

[Purpose of the invention]

An object of the present invention is to provide an underground temperature measuring device that can easily measure temperatures at many points at different depths underground with a simple configuration.

[Structure of the invention]

This invention involves drilling a plurality of small holes at each position in the length direction of the pipe in a pipe made of a material with high mechanical strength and poor thermal conductivity, which is driven into the ground. It is easy to arrange the temperature measuring element in the small hole, and it is possible to measure the temperature at many points at different depths underground by simply driving the pipe into the ground, and the temperature measurement operation is easy. Environmental management of a residential basement can be easily performed.

〔Example〕

Next, the present invention will be explained in detail with reference to drawings showing an embodiment thereof.

Figure 1 shows the overall view of the device, and Figure 2 shows an enlarged cross-sectional view of a part of the device. It is made of a material that does not have very good thermal conductivity, such as stainless steel or iron. (3) is a small hole drilled at each position in the length direction of the pipe (1), and (4) is a small diameter base (5) fitted into the small hole (3) K. The insulating backing (6) made of plastic is made of a material having high strength and good thermal conductivity, such as a silicone rubber material, and fixes the backing (4) to the pipe (1).

Therefore, by driving the pipe (1) into the ground (2), when measuring each point in the ground where each temperature measuring element (9) is located, each small hole (3) is placed 10 cm and 1 m from the ground surface.
t 2m tIl, + position 3m, 4'm, 5m tic 7mm
If this pipe (1) is drilled with a diameter of
Temperature measurement can be performed at each point of 4 m s 5 m.

[Brief explanation of drawings]

The drawing shows one embodiment of the underground temperature measuring device of the present invention,
FIG. 1 is a front view of the entire structure driven into the ground, and FIG. 2 is an enlarged sectional view of a portion of FIG. 1. (1)...Pipe, (2)...Underground, (3)...
Small hole, (9)... Temperature measuring element, 0υ... Protective film.

Claims (1)

[Claims] ■ A pipe made of a material with high mechanical strength and poor thermal conductivity is drilled into the ground, and a plurality of small holes are drilled at each position along the length of the pipe, and each small hole is A temperature measuring element is disposed at each of the points and the temperature is measured.