JPS58140441U

JPS58140441U - Temperature detection device for rotating body

Info

Publication number: JPS58140441U
Application number: JP3830282U
Authority: JP
Inventors: 「峰」友　清博
Original assignee: 三菱電機株式会社
Priority date: 1982-03-15
Filing date: 1982-03-15
Publication date: 1983-09-21

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の回転体温度検出装置を示すプロ　　゛ツ
ク図、第２図はこの考案の一実施例を示すブロック図、
第３図は計測ポインｌ〜の温度と回転変圧器の入力電流
との特性をグラフで表わした図、第４図は計測ポイント
の温度と電流の温度成分検出回路１７の出力電圧との特
性をグラフで表わした図である。１４は温度センサー、１は回転側モジュール、７は信号
処理装置、１５は回転変圧器、１６はＶ／Ｉ変換回路、
１７は変流器、１８は電流の温度成分検出回路、２は増
巾回路、４は直流電源回路である。なお図中同一符号は
同−又は相当部分を示す。Fig. 1 is a block diagram showing a conventional rotating body temperature detection device, Fig. 2 is a block diagram showing an embodiment of this invention.
FIG. 3 is a graphical representation of the characteristics between the temperature at measurement points l and the input current of the rotary transformer, and FIG. 4 is a graph showing the characteristics between the temperature at the measurement points and the output voltage of the temperature component detection circuit 17 of the current. It is a figure expressed by a graph. 14 is a temperature sensor, 1 is a rotating side module, 7 is a signal processing device, 15 is a rotating transformer, 16 is a V/I conversion circuit,
17 is a current transformer, 18 is a current temperature component detection circuit, 2 is an amplification circuit, and 4 is a DC power supply circuit. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

(1) a temperature sensor for generating an electrical signal proportional to the temperature of a point to be measured on the rotating body, a means for amplifying the electrical signal, and a means for processing the electrical signal; A rotating body temperature detection device comprising the width increasing means and means for coupling with the processing means,
The amplification means includes a V/I conversion circuit for converting the electrical signal into a change in the load current of the coupling means, and the coupling means has a rotating winding and a fixed winding and is connected to a power supply. The rotary transformer is provided with a current transformer connected to the stationary winding to detect the changed load current, and is connected to the current transformer to obtain an output corresponding to the electrical signal. . A temperature detection device for a rotating body, characterized in that a current temperature component detection circuit is provided in the processing means.

(2) The amplification means includes an amplification circuit that amplifies the electrical signal from the temperature sensor, and a VV connected to the output side of this amplification circuit.
/I conversion circuit, and a DC power supply circuit that supplies control power supply voltage to these amplifier circuits and V/I conversion circuit,
The temperature of a rotating body according to claim 1, wherein the output side of the Vl■ conversion circuit and the input side of the DC power supply circuit are connected together to a rotating side winding of a rotating transformer. Detection device.