JPH056485Y2 - - Google Patents
Info
- Publication number
- JPH056485Y2 JPH056485Y2 JP1984084863U JP8486384U JPH056485Y2 JP H056485 Y2 JPH056485 Y2 JP H056485Y2 JP 1984084863 U JP1984084863 U JP 1984084863U JP 8486384 U JP8486384 U JP 8486384U JP H056485 Y2 JPH056485 Y2 JP H056485Y2
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- signal
- outputs
- section
- correlation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004364 calculation method Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 238000005259 measurement Methods 0.000 claims description 7
- 238000009529 body temperature measurement Methods 0.000 claims description 3
- 238000005314 correlation function Methods 0.000 claims description 3
- 230000000704 physical effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Description
【考案の詳細な説明】
（技術分野）
本考案は温度の関数でもある測定量信号を温度
信号で補償して出力する物性測定における温度補
償装置に関する。[Detailed Description of the Invention] (Technical Field) The present invention relates to a temperature compensation device for measuring physical properties, which compensates and outputs a measured quantity signal, which is also a function of temperature, with a temperature signal.
（従来技術）
この種の温度補償装置として、例えば第１図に
示す如く構成されたものがある。図中、１は放射
線源、２は電離箱、３は温度センサ、４は変換増
幅器、５は零調整部６を有する可変ゲイン増幅
器、７は演算部である。放射線源１と電離箱２は
所定の間隔をもつて設置され、その間に被測定体
であるシート状の紙８を走行させる厚さ計を構成
している。(Prior Art) As this type of temperature compensator, there is one constructed as shown in FIG. 1, for example. In the figure, 1 is a radiation source, 2 is an ionization chamber, 3 is a temperature sensor, 4 is a conversion amplifier, 5 is a variable gain amplifier having a zero adjustment section 6, and 7 is a calculation section. The radiation source 1 and the ionization chamber 2 are installed at a predetermined interval, and constitute a thickness gauge in which a sheet of paper 8, which is an object to be measured, is run.
このような厚さ計において、電離箱２で検出さ
れる信号は紙８の坪量BW（紙８の厚さに関連す
る量）や温度ｔの関数となつており、変換増幅器
４の出力信号X1は(1)式となる。 In such a thickness gauge, the signal detected by the ionization chamber 2 is a function of the basis weight BW of the paper 8 (an amount related to the thickness of the paper 8) and the temperature t, and the output signal of the conversion amplifier 4 X 1 becomes equation (1).
x1＝I0・e-〓(BW+at) ……(1)
但し、I0、μ、ａ……定数
又、可変ゲイン増幅器５は温度センサ３からの
信号を入力し、(2)式に示す信号x2を出力する。 x 1 = I 0 · e - 〓 (BW+at) ... (1) However, I 0 , μ, a ... constant Also, the variable gain amplifier 5 inputs the signal from the temperature sensor 3, (2) Outputs the signal x 2 shown in Eq.
x2＝S0＋Z0 ……(2)
但し、S0……増幅器５のスパン調で決まる定数
Z0……増幅器５の零調で決まる定数
演算部７において、これら２つの信号x1および
x2を用いた所定の補償演算が行われ、温度補償さ
れた厚さ信号x3が得られる。 x 2 = S 0 + Z 0 ... (2) However, S 0 ... A constant determined by the span adjustment of the amplifier 5 Z 0 ... A constant determined by the zero adjustment of the amplifier 5 In the calculation section 7, these two signals x 1 and
A predetermined compensation operation using x 2 is performed to obtain a temperature compensated thickness signal x 3 .
しかしながら、従来の厚さ計にあつては、別の
手段で２点以上の温度測定をしながら可変ゲイン
増幅器５のスパン調及び零調（(2)式のS0及びZ0を
決める操作）をする必要があるため、非常に煩わ
しく工数がかかると問題があつた。 However, in the case of a conventional thickness gauge, the span adjustment and zero adjustment of the variable gain amplifier 5 (operation to determine S 0 and Z 0 in equation (2)) are performed while measuring the temperature at two or more points using another means. The problem was that it was very troublesome and took a lot of man-hours.
（考案の目的）
本考案はこの点に鑑みてなされたもので、その
目的は、煩わしい操作を必要とせず且つ工数のか
からない温度補償装置を提供することにある。(Purpose of the invention) The present invention has been made in view of this point, and its purpose is to provide a temperature compensation device that does not require troublesome operations and does not require many man-hours.
（考案の構成）
この目的を達成する本考案は、被測定体からの
測定量に関する信号と温度にのみ関する信号を入
力し、温度補償された測定信号を出力する演算部
を具備する温度補償装置において、温度にのみ関
する信号を入力する指数関数変換部と、該指数関
数部からの出力と善意被測定体からの測定量に関
する信号を入力してこれらの信号を乗算する乗算
部と、前記乗算部からの出力と前記温度にのみ関
する信号を入力しこれらの相関を取つて温度補償
された測定信号を出力すると共に温度測定系で決
まる定数を前記指数関数部に出力して相関関数を
零にする演算を行なう相関演算部を具備したもの
である。(Structure of the device) The present invention that achieves this objective is a temperature compensation device that is equipped with a calculation unit that inputs a signal related to a measured quantity from an object to be measured and a signal related only to temperature, and outputs a temperature-compensated measurement signal. , an exponential function conversion unit inputting a signal related only to temperature; a multiplication unit inputting an output from the exponential function unit and a signal related to a measured amount from a well-intentioned measured object and multiplying these signals; and the multiplication unit The output from the section and the signal related only to the temperature are input, and the correlation between them is taken to output a temperature-compensated measurement signal, and a constant determined by the temperature measurement system is output to the exponential function section to make the correlation function zero. The apparatus is equipped with a correlation calculation unit that performs calculations.
（実施例）
以下、図面を参照し、本考案の実施例を詳細に
説明する。(Embodiments) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
第２図は本考案の一実施例を示す厚さ計の構成
図である。第２図において、第１図と同一部分に
は同一符号を付し、その説明は省略する。１１は
変換増幅器で、紙８の温度ｔに対して(3)式の信号
x2を出力する構成となつている。 FIG. 2 is a configuration diagram of a thickness gauge showing an embodiment of the present invention. In FIG. 2, the same parts as in FIG. 1 are given the same reference numerals, and their explanations will be omitted. 11 is a conversion amplifier, which converts the signal of equation (3) for the temperature t of paper 8.
It is configured to output x 2 .
X2＝St＋Ｚ ……(3)
但し、Ｓ、Ｚ……温度センサ３、増幅器１１等
の温度測定系で決まる定数
演算部７は信号x2をexpx2に変換して信号x4を
出力する指数関数変換部１２と、信号x1とx4を乗
算して信号x5を出力する乗算部１３と、信号x2と
温度ｔの相関を求め、(3)式におけるＳ及びＺを決
める信号S6を出力すると共に、温度補償された測
定信号x3を出力する相関演算部１４とで構成され
る。 X 2 = St + Z ... (3) However, S, Z ... constants determined by the temperature measurement system such as the temperature sensor 3 and amplifier 11 The calculation unit 7 converts the signal x 2 to expx 2 and outputs the signal x 4 An exponential function conversion unit 12, a multiplication unit 13 that multiplies the signals x 1 and x 4 and outputs a signal x 5 , and a signal that calculates the correlation between the signal x 2 and the temperature t and determines S and Z in equation (3). The correlation calculating section 14 outputs a temperature-compensated measurement signal x3 as well as a temperature-compensated measurement signal x3 .
このような厚さ計において、乗算器１３の出力
信号x5は(4)式となる。 In such a thickness gauge, the output signal x5 of the multiplier 13 is expressed by equation (4).
x5＝x1・x4
＝I0・e{(-〓a+S)t-〓BW+Z} ……(4)
そして、相関演算部１４は(4)式で表わされる信
号x5と温度ｔの相関を求め、相関関数が零となる
Ｓ及び温度ｔが零のときＺを求め、指数変換部１
２におけるＳ及びＺを決定する。従つて、上記処
理の後、相関演算部１４から出力される信号x3は
温度補償された信号となる。 x 5 = x 1・x 4 =I 0・e{ (- 〓 a+S)t- 〓 BW+Z } ...(4) Then, the correlation calculation unit 14 calculates the signal x 5 expressed by equation (4) Find the correlation between and the temperature t, find S where the correlation function is zero, and Z when the temperature t is zero, and then
Determine S and Z in 2. Therefore, after the above processing, the signal x3 output from the correlation calculation section 14 becomes a temperature compensated signal.
尚、本考案は上記実施例に限定するものではな
く、厚さ計以外の物性測定装置における温度補償
であつてもよい。又、測定量信号が温度の関数で
なく、測定信号に温度が外乱となる場合の温度補
償であつてもよい。更に、温度にのみ関する信号
は１点でなく複数であつてもよい。 It should be noted that the present invention is not limited to the above embodiments, and may be applied to temperature compensation in physical property measuring devices other than thickness gauges. Moreover, the measured quantity signal is not a function of temperature, but may be temperature compensation when temperature causes a disturbance to the measured signal. Furthermore, the signal relating only to temperature may be provided at multiple points instead of at one point.
（考案の効果）
以上説明したように、本考案によれば、測定量
信号と温度のにみ関する信号の相関をとると共
に、これが零となるような処理をして出力するよ
うにしたため、煩わしい操作を必要とせず、工数
を低減することができる。又、フイールドで温度
センサを交換したとき、又、測定系を交換した場
合にも調整をする必要がない。(Effects of the invention) As explained above, according to the invention, the correlation between the measurand signal and the signal related to temperature is taken, and the correlation is processed to make it zero before being output, which eliminates the troublesome No operation is required and the number of man-hours can be reduced. Furthermore, there is no need to make adjustments when replacing the temperature sensor in the field or when replacing the measurement system.
第１図は従来例を示す構成図、第２図は本考案
の一実施例を示す構成図である。
７……演算部、１２……指数関数変換部、１３
……乗算部、１４……相関演算部。
FIG. 1 is a block diagram showing a conventional example, and FIG. 2 is a block diagram showing an embodiment of the present invention. 7... Arithmetic unit, 12... Exponential function conversion unit, 13
. . . Multiplication section, 14 . . . Correlation calculation section.
Claims (1)
のみ関する信号を入力し、温度補償された測定信
号を出力する演算部７を具備する温度補償装置に
おいて、 前記演算部７は、 変換増幅器１１からの温度にのみ関する出力信
号X1を入力し指数関数X4に変換して出力する指
数関数変換部１２と、 該指数関数部１２からの出力信号X4と前記被
測定体からの測定量に関する出力信号X1を入力
してこれらの信号を乗算し、乗算信号X5を出力
する乗算部１３と、 前記乗算部１３からの出力信号X5と前記温度
にのみ関する出力信号X1を入力してこれらの相
関を取つて温度補償された測定信号X3を出力す
ると共に温度測定系で決まる定数S6を前記指数関
数部１２に出力して相関関数を零にする演算を行
なう相関演算部１４を具備したことを特徴とする
物性測定における温度補償装置。[Claims for Utility Model Registration] A temperature compensation device comprising a calculation section 7 which inputs a signal related to a measured quantity from an object to be measured 8 and a signal related only to temperature, and outputs a temperature-compensated measurement signal, comprising: The section 7 includes an exponential function conversion section 12 which inputs the output signal X1 related only to the temperature from the conversion amplifier 11, converts it into an exponential function X4 , and outputs it; and an output signal X4 from the exponential function section 12 and the a multiplier 13 that inputs an output signal X 1 related to a measured quantity from the object to be measured, multiplies these signals, and outputs a multiplied signal X 5 ; It inputs the related output signal X 1 , takes the correlation between them, outputs a temperature compensated measurement signal X 3 , and outputs a constant S 6 determined by the temperature measurement system to the exponential function section 12 to make the correlation function zero. 1. A temperature compensation device for measuring physical properties, characterized by comprising a correlation calculation section 14 that performs calculations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8486384U JPS611108U (en) | 1984-06-07 | 1984-06-07 | Temperature compensation device for physical property measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8486384U JPS611108U (en) | 1984-06-07 | 1984-06-07 | Temperature compensation device for physical property measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS611108U JPS611108U (en) | 1986-01-07 |
| JPH056485Y2 true JPH056485Y2 (en) | 1993-02-19 |
Family
ID=30634730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8486384U Granted JPS611108U (en) | 1984-06-07 | 1984-06-07 | Temperature compensation device for physical property measurement |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS611108U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0543373Y2 (en) * | 1987-02-28 | 1993-11-01 | ||
| US4883992A (en) * | 1988-09-06 | 1989-11-28 | Delco Electronics Corporation | Temperature compensated voltage generator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477154A (en) * | 1977-12-02 | 1979-06-20 | Hitachi Ltd | Thickness metering method for radioactive thickness gauge |
-
1984
- 1984-06-07 JP JP8486384U patent/JPS611108U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5477154A (en) * | 1977-12-02 | 1979-06-20 | Hitachi Ltd | Thickness metering method for radioactive thickness gauge |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS611108U (en) | 1986-01-07 |
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