JPS5724840A - Automatic load applying device - Google Patents
Automatic load applying deviceInfo
- Publication number
- JPS5724840A JPS5724840A JP9982480A JP9982480A JPS5724840A JP S5724840 A JPS5724840 A JP S5724840A JP 9982480 A JP9982480 A JP 9982480A JP 9982480 A JP9982480 A JP 9982480A JP S5724840 A JPS5724840 A JP S5724840A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- testing device
- make
- load
- pressure
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
PURPOSE:To make it possible for load, which increases on a step-by-step basis onto a testing device, to act automatically, by making a combination of an oil pressure detecting step, a voltage generator which generates voltage on a step-by-step basis, and a timer. CONSTITUTION:When compressed oil is given to a duct line 13 through an oil pressure pump 3, this compressed oil applies a load onto a testing device 1. At the same time, this pressure is detected by a pressure detecting circuit 20 and put into a comparator 25 as a voltage V1. A voltage generator 26 compares an output voltage V2 with the voltage V1, and if the relationship is proved to be V1<V2, the comparator 25 actuates a solenoid vlave 14 intermittently through an oscillator 27. As a result, pressure in the duct line 13 rises to make V1 equal to V2. And then, a timer 28 actuates to allow the voltage generator to generate a voltage V2 for next step. As a result, V2 becomes larger than V1 again and the same action is repeated. It is possible, by doing so, to make and load, which increases on a step-by-step basis on the testing device 1, act automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9982480A JPS5724840A (en) | 1980-07-23 | 1980-07-23 | Automatic load applying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9982480A JPS5724840A (en) | 1980-07-23 | 1980-07-23 | Automatic load applying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5724840A true JPS5724840A (en) | 1982-02-09 |
Family
ID=14257567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9982480A Pending JPS5724840A (en) | 1980-07-23 | 1980-07-23 | Automatic load applying device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5724840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835439A (en) * | 1981-08-27 | 1983-03-02 | Power Reactor & Nuclear Fuel Dev Corp | Long-actuating testing device for material |
-
1980
- 1980-07-23 JP JP9982480A patent/JPS5724840A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5835439A (en) * | 1981-08-27 | 1983-03-02 | Power Reactor & Nuclear Fuel Dev Corp | Long-actuating testing device for material |
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