CN201689011U - Instrumented impact sensor - Google Patents
Instrumented impact sensor Download PDFInfo
- Publication number
- CN201689011U CN201689011U CN2010201664295U CN201020166429U CN201689011U CN 201689011 U CN201689011 U CN 201689011U CN 2010201664295 U CN2010201664295 U CN 2010201664295U CN 201020166429 U CN201020166429 U CN 201020166429U CN 201689011 U CN201689011 U CN 201689011U
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- China
- Prior art keywords
- groove
- elastic body
- body bearing
- blade
- cutting edge
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- 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
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses an instrument impact sensor, which is used with an instrumented impact tester. The instrumented impact sensor comprises a cuboid elastomeric support, one end of the elastomeric support is connected with a cutting edge, the elastomeric support is provided with a groove, and a strain plate is arranged in the groove. When in use, an impact sample contacts with a measuring point at the end of the cutting edge, the cutting edge and the elastomeric support deform due to stress, and physical deformation is transmitted to the strain plate so that electric signals in the strain plate are changed. The instrumented impact sensor can effectively measure force load of samples in impact testing processes.
Description
Technical field
The utility model relates to a kind of shock transducer, relates in particular to a kind of instrumentation shock transducer that is used for the instrumentation impact testing machine.
Background technology
In order to grasp the relevant mechanical property of material, people have designed the testing machine of various test material mechanical properties.Instrumentation shock transducer on the instrumentation impact testing machine, can test out the load-time curve that bears in the sample impact process, and the crackle that can draw sample by the special software analysis forms numerous data such as energy, crack propagation energy, yield force, maximum, force, unstable crack propagation initial force, can make accurately the impact property of sample and judging.But existing instrumentation shock transducer all can't be measured the power value load that sample bears.
The utility model content
The utility model provides a kind of instrumentation shock transducer that can test out the power value load that sample bears.
For solving the problems of the technologies described above, the utility model adopts following technical scheme: it comprises the elastic body bearing of a rectangular shape, connects blade at elastic body bearing one end, has groove on the elastic body bearing, is provided with foil gauge in the groove.
Described elastic body bearing and blade all are connected with base, and base is provided with screw hole.
Described elastic body bearing all has groove on the two sides parallel with the blade cutting edge, and two groove shapes are measure-alike, the position is relative, and foil gauge all is set in the groove, and two foil gauges are formed electric bridge.
The knife edge angular of described blade is 30 degree, and the section radius of blade cutting edge is 2 or 8 millimeters.Between two grooves, all have cable hole in elastic body bearing and the base, be convenient to the circuit cabling and the signal output of foil gauge.
The instrumentation shock transducer structure that the utility model provides can be measured the power value load that sample bears in the impulse test process effectively.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the front view of the utility model preferred embodiment;
Fig. 2 is the right view of the utility model preferred embodiment;
Fig. 3 is the upward view of the utility model preferred embodiment;
Fig. 4 is the A-A cut-open view of the utility model preferred embodiment;
Fig. 5 is the rear view of the utility model preferred embodiment.
Embodiment
To shown in Figure 5, it comprises the elastic body bearing 2 of a rectangular shape instrumentation shock transducer as Fig. 1, connects blade 3 in elastic body bearing lower end, has groove 4 on the elastic body bearing 2, is provided with foil gauge 5 in the groove.Elastic body bearing 2 and blade 3 all are connected with base 1, and base 1 is provided with screw hole 6.Screw hole 6 is used for being connected with the hammer body of impact testing machine, fixes.
As Fig. 1, Fig. 2 and shown in Figure 4, it is identical and be symmetrical structure all to have groove 4, two groove shapes sizes on elastic body bearing 2 two sides parallel with the blade cutting edge, foil gauge 5, two foil gauge circuits all is housed in two grooves 4 connects and form electric bridge.Between two grooves 4, all dug cable hole 7 in elastic body bearing 2 and the base 1, be convenient to the circuit cabling and the signal output of foil gauge 5.
As shown in Figure 1, angle is 30 degree between two inclined-planes of blade, and cutting edge cross section, blade lower end is circular-arc, and arc radius is 2 millimeters.
Foil gauge as shown in Figure 2, cutting edge position, blade 3 lower right is force-detecting position (contact point of sample and sensor is force-detecting position).Foil gauge 5 is positioned at the force-detecting position back upper place, and it can directly experience impact deformation.
The instrumentation shock transducer is a strain beam type force transducer.During use, impact specimen contacts with the force-detecting position of blade 3 limit ends, blade 3 and the 2 stressed generation deformation of elastic body bearing, and physical deformation conducts to foil gauge 5, and the electric signal in the foil gauge is changed.
Blade lower end cutting edge as shown in Figure 1, the arc radius in cross section also can be 8 millimeters.
Described two grooves 4 also can be got through, and promptly at elastic body bearing 2 through hole are set, and a foil gauge 5 is installed in the through hole.In like manner, such scheme only is the preferential embodiment of the utility model, if principle is done simple replacement with the shape and structure of each parts of instrumentation shock transducer according to this, still falls into the utility model protection domain.
Claims (4)
1. instrumentation shock transducer comprises it is characterized in that the elastic body bearing of a rectangular shape: connect blade at elastic body bearing one end, have groove on the elastic body bearing, be provided with foil gauge in the groove.
2. instrumentation shock transducer according to claim 1 is characterized in that: described elastic body bearing and blade all are connected with base, and base is provided with screw hole.
3. instrumentation shock transducer according to claim 1 is characterized in that: the knife edge angular of described blade is 30 degree, and the section radius of blade cutting edge is 2 millimeters or 8 millimeters.
4. instrumentation shock transducer according to claim 1 and 2, it is characterized in that: described elastic body bearing all has groove on the two sides parallel with the blade cutting edge, two groove shapes are measure-alike, the position is relative, and foil gauge all is set in the groove, and two foil gauges are formed electric bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664295U CN201689011U (en) | 2010-04-15 | 2010-04-15 | Instrumented impact sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201664295U CN201689011U (en) | 2010-04-15 | 2010-04-15 | Instrumented impact sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201689011U true CN201689011U (en) | 2010-12-29 |
Family
ID=43377291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201664295U Expired - Lifetime CN201689011U (en) | 2010-04-15 | 2010-04-15 | Instrumented impact sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201689011U (en) |
-
2010
- 2010-04-15 CN CN2010201664295U patent/CN201689011U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101229 |
|
| CX01 | Expiry of patent term |