JP2649814B2 - Differential thermobalance - Google Patents
Differential thermobalanceInfo
- Publication number
- JP2649814B2 JP2649814B2 JP2869388A JP2869388A JP2649814B2 JP 2649814 B2 JP2649814 B2 JP 2649814B2 JP 2869388 A JP2869388 A JP 2869388A JP 2869388 A JP2869388 A JP 2869388A JP 2649814 B2 JP2649814 B2 JP 2649814B2
- Authority
- JP
- Japan
- Prior art keywords
- links
- sets
- vertical
- link
- differential thermobalance
- 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
Landscapes
- Geophysics And Detection Of Objects (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Description
【発明の詳細な説明】 本発明は熱重量分析装置等に用いられる差動熱天秤に
関する。The present invention relates to a differential thermobalance used for a thermogravimetric analyzer or the like.
このような装置においては、試料と標準試料とを同一
の炉に挿入して、しかも温度差が生じないようにこれら
を出来るだけ近い位置に配置する必要がある。また温度
変化によって、例えば試料が熔融すると重心位置が変化
するから、このような試料の移動による天秤の零点変動
を防止するためには、ロバーバル機構を用いる必要があ
る。従って従来は第1図に示したように、水平な2本宛
のアーム1と2および3と4をそれぞれ垂直面内に配置
して、同一の端部を固定部に回動自在に結着すると共に
上記2本宛のアームにおける一方の端部を垂直な棒5ま
たは6にそれぞれ回動自在に結着して2組のリンクを構
成し、上記棒5、6を支点7で支持した天秤の腕8の両
端に懸架して、上記棒5、6で試料または標準試料の保
持器9および10の柄を支持する装置が用いられていた。
このような装置においては、試料および天秤の作用点が
何れも上記リンク面内に含まれるから、リンクに水平成
分を持ったねじり力等が加わる恐れがなく円滑に動作す
る。しかし試料保持器9.10を同一の炉内に挿入し、かつ
これらをできるだけ接近させて、試料と標準試料との間
の温度差を防止しようとすると天秤の腕8が極めて短く
なるために、その感度が著しく低下する欠点があった。
従って本発明はこのような欠点の無い差動熱天秤を提供
するものである。In such an apparatus, it is necessary to insert the sample and the standard sample into the same furnace, and to arrange them as close as possible so as not to cause a temperature difference. Further, for example, when the sample is melted, the position of the center of gravity changes due to the temperature change. Therefore, in order to prevent the zero point fluctuation of the balance due to the movement of the sample, it is necessary to use a Roberval mechanism. Therefore, conventionally, as shown in FIG. 1, two horizontal arms 1 and 2 and 3 and 4 are respectively arranged in a vertical plane, and the same end is rotatably connected to a fixed portion. A balance in which one end of each of the two arms is rotatably connected to a vertical bar 5 or 6 to form two sets of links, and the bars 5 and 6 are supported by a fulcrum 7. A device is used which is suspended at both ends of the arm 8 and supports the handles of the holders 9 and 10 of the sample or the standard sample with the rods 5 and 6 described above.
In such an apparatus, since the working points of the sample and the balance are both included in the link surface, the link operates smoothly without the risk of applying a torsional force having a horizontal component to the link. However, when the sample holder 9.10 is inserted into the same furnace and brought as close as possible to prevent the temperature difference between the sample and the standard sample, the sensitivity of the balance arm 8 becomes extremely short because the balance arm 8 becomes extremely short. Has a drawback of being significantly reduced.
Accordingly, the present invention provides a differential thermobalance free of such disadvantages.
本発明は、充分近い距離にある2つの平行な垂直面の
各々に2つの各リンクを逆向きに配置するか、あるいは
その位置を相対向しないように偏寄させ、または垂直な
棒に分岐棒を設ける等の手段により、天秤の腕を充分長
くして、重量変化の検出感度を向上したものである。以
下その実施例を説明する。The present invention relates to a method in which two links are arranged in opposite directions on each of two parallel vertical planes which are sufficiently close to each other, or their positions are offset so as not to be opposed to each other, or a vertical rod is divided into a branch rod. The length of the arm of the balance is made sufficiently long by means such as the provision of a weight to improve the detection sensitivity of the weight change. The embodiment will be described below.
第2図(a)は本発明実施例の斜視図、(b)はその
平面構成を示した図である。すなわち、充分小さい間隔
dを持った平行な2つの垂直面内にそれぞれ水平に配置
した2本宛のアーム1と2および3と4をほぼ対向する
ように配置して、互いに逆向きの端部を固定部に回動自
在に結着すると共に各アームの他方の端部を垂直な棒5
または6にそれぞれ回動自在なように結着して2組のリ
ンクを構成してある。このリンクにおける垂直な棒5.6
の上端を、前記間隔dに比較して充分長いと共に各リン
クを含む面に対して傾斜し、かつ中央部の支点7を支持
された天秤の腕8の両端に懸架してある。また棒5.6に
は上記各リンクを含む平面内に配置される試料および標
準試料の保持器9.10における支持棒を水平面内において
相対向するように取り付けたものである。従ってこの装
置は、2組のリンクをほぼ同一位置において逆向きに配
置することにより、垂直棒5.6の距離を大きくして、天
秤の腕8の長さを増大し、重量変化の検出感度を高くし
たものである。FIG. 2 (a) is a perspective view of an embodiment of the present invention, and FIG. 2 (b) is a diagram showing a plan configuration thereof. That is, two arms 1 and 2 and 3 and 4 which are horizontally arranged in two parallel vertical planes having a sufficiently small distance d are arranged so as to be substantially opposed to each other, and the ends opposite to each other. Is rotatably connected to the fixed portion, and the other end of each arm is
Alternatively, two sets of links are formed by being rotatably connected to each other. Vertical bar 5.6 on this link
Is suspended at both ends of a balance arm 8 which is sufficiently long compared to the distance d, is inclined with respect to a plane including the links, and supports a central fulcrum 7. The rod 5.6 is provided with support rods of the sample and standard sample holders 9.10 arranged in a plane including the above-mentioned links so as to face each other in a horizontal plane. Therefore, this device increases the distance of the vertical bar 5.6 by increasing the length of the arm 8 of the balance by arranging the two sets of links at substantially the same position in opposite directions, thereby increasing the sensitivity of detecting a change in weight. It was done.
また第3図、第4図、第5図も本発明の他の実施例
で、各図において(a)は斜視図(b)は平面構成を示
した図である。すなわち第3図の装置は、充分小さい間
隔を持った2つの平行な垂直面内に水平な2本宛のアー
ム1と2および3と4を、同一の高さの位置において互
いに食い違うように水平に配置して、各アームにおける
同一方向の端部をそれぞれ固定部に回動自在に結着し、
同一平面内におけるアームの他端を垂直な棒5.6にそれ
ぞれ回動自在に結着することにより、第2図の装置と同
様に2組のリンクを形成したもので、他の構成は第2図
の装置と同一である。従ってこの装置はアーム1.2と3.4
との水平方向位置を食い違わせることにより、天秤の腕
8を充分長くして、試料の重量変化を高感度で検出し得
るようにしたものである。かつ第2図の装置と同様に試
料等の保持器9.10および天秤の両端は何れも上記各リン
クの構成面内に配置されているから倒れモーメントが生
ずるような欠点もないのである。3, 4 and 5 are other embodiments of the present invention. In each figure, (a) is a perspective view and (b) is a view showing a plan configuration. In other words, the apparatus of FIG. 3 places two horizontal arms 1 and 2 and 3 and 4 horizontally in two parallel vertical planes spaced sufficiently small so that they are staggered from each other at the same height. And the ends of each arm in the same direction are rotatably connected to the fixed portions, respectively.
The other end of the arm in the same plane is rotatably connected to a vertical bar 5.6, thereby forming two sets of links similarly to the apparatus of FIG. It is the same as the device of the above. Therefore this device is compatible with arms 1.2 and 3.4
The arm 8 of the balance is made sufficiently long by staggering the horizontal positions of the sample and the sample to detect a change in weight of the sample with high sensitivity. Further, similarly to the apparatus shown in FIG. 2, since both the holder 9.10 for the sample and the like and both ends of the balance are arranged in the constituent surfaces of the respective links, there is no disadvantage that a falling moment is generated.
第4図の装置は、第2図の構成におけるアーム1.2を
天秤の腕8により上方の配置したもので、第2図の装置
と全く同一の作用効果を有する。更に第5図の装置は、
第3図における2組のリンクを相対抗するように配置し
て垂直な棒5に充分長い水平な分岐棒11を突設すること
により、その先端を天秤の腕8の一端に懸架してある。
従ってこのような構成によっても天秤の腕を長くして、
重量の検出感度を向上することができる。The device shown in FIG. 4 has the same function and effect as the device shown in FIG. 2, in which the arm 1.2 in the configuration shown in FIG. Further, the apparatus of FIG.
The two sets of links shown in FIG. 3 are opposed to each other, and a sufficiently long horizontal branch bar 11 is protruded from the vertical bar 5 so that its tip is suspended on one end of the arm 8 of the balance. .
Therefore, even with such a configuration, the arm of the balance is lengthened,
Weight detection sensitivity can be improved.
第1図は従来の差動熱天秤の構成の一例を示した斜視図
である。また第2図、第3図、第4図および第5図は何
れも本発明の実施例で、各図において(a)は斜視図、
(b)は平面構成を示した図である。なお図において、
1.2.3.4はリンクを構成する水平アーム、5.6は垂直棒、
7は天秤の支点、8は天秤の腕、9.10は試料または標準
試料の容器、11は分岐棒である。FIG. 1 is a perspective view showing an example of the configuration of a conventional differential thermobalance. 2, 3, 4, and 5 are all embodiments of the present invention, in which (a) is a perspective view,
(B) is a diagram showing a planar configuration. In the figure,
1.2.3.4 is the horizontal arm that constitutes the link, 5.6 is the vertical bar,
7 is a balance fulcrum, 8 is a balance arm, 9.10 is a sample or standard sample container, and 11 is a branch rod.
Claims (5)
垂直面内に配置してそれらの同一方向における端部を固
定部に回動自在に結着して他端を垂直な棒にそれぞれ回
動自在に結着した2組のリンクを充分小さい間隔をもっ
てそれぞれ垂直面内に配置し、かつ上記2組のリンクに
おける垂直な棒から各リンクを含む平面内に突設した支
持棒の先端にそれぞれ取り付けた試料および標準試料の
保持器を充分近い位置に配置すると共に前記2組の各リ
ンクにおける垂直な棒をこの2組のリンクの間隔に比較
して充分長くかつ各リンクを含む面に対して傾斜する天
秤の腕の両端に結着した差動熱天秤1. Two horizontal arms of equal length are arranged in a vertical plane, their ends in the same direction are rotatably connected to a fixed part, and the other ends are vertical rods. Two sets of links rotatably connected to each other are arranged in a vertical plane at a sufficiently small interval, and a tip of a support rod protruding from a vertical rod in the two sets of links into a plane including each link. The holders for the sample and the standard sample respectively mounted on the two sets of links are arranged sufficiently close to each other, and the vertical bar in each of the two sets of links is sufficiently long compared to the interval between the two sets of links and on a surface including each link. Differential thermobalance attached to both ends of the arm of the balance that inclines
きに配置した特許請求の範囲第1項の差動熱天秤2. A differential thermobalance according to claim 1, wherein two sets of links are arranged at substantially the same position and in opposite directions.
位置において同一方向に配置した特許請求の範囲第1項
の差動熱天秤3. A differential thermobalance according to claim 1, wherein two sets of links are arranged at different positions in the same direction so as not to face each other.
置に配置した特許請求の範囲第1項の差動熱天秤4. A differential thermobalance according to claim 1, wherein two sets of links are arranged at different positions in the vertical direction.
方向に配置すると共に各リンクにおける少なくも一方の
垂直な棒からそのリンクを含む平面内に突設した分岐棒
の先端を天秤の腕の先端に結着した特許請求の範囲第1
項の差動熱天秤5. The two sets of links are arranged at substantially the same position in the same direction, and at least one of the vertical bars in each link is connected to the tip of a branch bar projecting into a plane including the link by the arm of the balance. Claim 1 attached to the tip
Term differential thermobalance
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2869388A JP2649814B2 (en) | 1988-02-12 | 1988-02-12 | Differential thermobalance |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2869388A JP2649814B2 (en) | 1988-02-12 | 1988-02-12 | Differential thermobalance |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH01206233A JPH01206233A (en) | 1989-08-18 |
JP2649814B2 true JP2649814B2 (en) | 1997-09-03 |
Family
ID=12255560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2869388A Expired - Lifetime JP2649814B2 (en) | 1988-02-12 | 1988-02-12 | Differential thermobalance |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2649814B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012525594A (en) * | 2009-04-29 | 2012-10-22 | ウオーターズ・テクノロジーズ・コーポレイシヨン | Simultaneous differential thermal analysis system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6397593B1 (en) * | 2017-10-02 | 2018-09-26 | 住友化学株式会社 | Sputtering target |
-
1988
- 1988-02-12 JP JP2869388A patent/JP2649814B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012525594A (en) * | 2009-04-29 | 2012-10-22 | ウオーターズ・テクノロジーズ・コーポレイシヨン | Simultaneous differential thermal analysis system |
JP2012525593A (en) * | 2009-04-29 | 2012-10-22 | ウオーターズ・テクノロジーズ・コーポレイシヨン | Simultaneous differential thermal analysis system |
Also Published As
Publication number | Publication date |
---|---|
JPH01206233A (en) | 1989-08-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4832452A (en) | Device for setting the angular position of optical elements | |
JP2649814B2 (en) | Differential thermobalance | |
US4655305A (en) | Strain gage type platform sensor | |
JP2738408B2 (en) | Coordinate measuring machine | |
FR2654833B1 (en) | DEVICE FOR MEASURING THE MECHANICAL PROPERTIES OF A PARTICULARLY TEXTILE SAMPLE. | |
JPH03502369A (en) | Forced linear motion inertia balance scale | |
US3555691A (en) | Clinometric pendulum apparatus | |
US4653325A (en) | Gyro apparatus | |
JPH0733149Y2 (en) | Thermobalance analyzer | |
US4497213A (en) | Gyroscopic force measuring cell | |
JPH0127064Y2 (en) | ||
JPH0533938Y2 (en) | ||
US4043414A (en) | Weighing scale with compensating weights | |
JPH0514189Y2 (en) | ||
JPS63290939A (en) | Thermobalance device | |
JPS6021780Y2 (en) | small scale scale | |
JPS6250765B2 (en) | ||
JPH0772709B2 (en) | Thermobalance device | |
JPH0737930B2 (en) | Thermobalance device | |
JP3031640B2 (en) | Thermal analyzer with balance beam | |
SU821942A1 (en) | Device for weight-wise sorting of objects | |
JPS61165431U (en) | ||
JPH087129B2 (en) | Horizontal thermobalance | |
JPH03142341A (en) | Differential thermo balance | |
JPH05322814A (en) | Thermobalance |