CN101329161B - Multifunctional static strain indicator - Google Patents
Multifunctional static strain indicator Download PDFInfo
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- CN101329161B CN101329161B CN2007100425069A CN200710042506A CN101329161B CN 101329161 B CN101329161 B CN 101329161B CN 2007100425069 A CN2007100425069 A CN 2007100425069A CN 200710042506 A CN200710042506 A CN 200710042506A CN 101329161 B CN101329161 B CN 101329161B
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- bridge circuit
- strain indicator
- modular converter
- amplifier
- static strain
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The present invention discloses a multifunctional statical strain indicator which comprises a power supply, an amplifier, an analog-to-digital converting module and a bridge circuit converting module and adopts a connecting mode that the selecting signal input end of a purpose selecting controller is connected with the amplifier and the bridge circuit converting module, and consequently, the multifunctional statical strain indicator can be taken as a bridge circuit converting tool or a statical strain indicator that finishes entire sampling and data processing tasks according to user requirements, can adopt corresponding signal input and output ends that fit for the selected purpose so as to input and output signals, combines multiple functions into one instrument and improves the utilization rate of the instrument.
Description
Technical field
The present invention relates to a kind of multifunctional static strain indicator.
Background technology
Statical strain indicator is to aim at test material to be subjected to the effect of static force and to produce the detecting instrument of deformation, it is normally according to bridge measurement principle, converting strain to electric weight by the electric bridge of being made up of strainometer or foil gauge and measuring resistance measures, existing strainmeter is a kind of instrument that initiative is arranged, charged source own, amplifier, the A/D conversion, the bridge circuit conversion, CPU, storer (EPROM and RAM), a series of modules such as I/O and driving circuit, when needs measure count few but when having a plurality of tasks to need, can adopt many strainmeters to finish a series of tasks such as sampling and data processing separately separately, but when task is few when needing the counting more of measurement, often strainmeter and transfer trunk are used to finish measuring task, therefore at the different task situation, strainmeter or needs and other strainmeter be used, perhaps need to be used, make troubles so for user's operation with transfer trunk.And in fact, existing transfer trunk is a kind of subordinate instrument, only has the bridge circuit modular converter, because strainmeter itself also has the bridge circuit modular converter, therefore how strainmeter is also used with the utilization factor that improves instrument and then to the user as transfer trunk to bring convenience, this has become the technical task that those skilled in the art need to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of multifunctional static strain indicator,, improve its utilization rate so that instrument has multiple function.
In order to achieve the above object, multifunctional static strain indicator provided by the invention comprises signal input part, power supply, amplifier, analog-to-digital conversion module, bridge circuit modular converter and a plurality of signal output part, it also comprises respectively and signal input part, amplifier, bridge circuit modular converter and a plurality of signal output part are connected, be used to select the connected mode of described signal input part and described amplifier and bridge circuit modular converter, so that statical strain indicator can both can only utilize the bridge circuit modular converter also to can be used as the instrument that statical strain indicator is finished whole sampling and data processing task as the bridge circuit crossover tool according to user's needs, simultaneously it also is used to cooperate the selection of purposes to adopt the purposes selection control of corresponding signal output terminal output signal.
Wherein, described purposes selection control is a relay, and described relay is the single-pole double-throw (SPDT) type, and described bridge circuit modular converter is the modular converter with 20 measurement points.
In sum, multifunctional static strain indicator of the present invention can make input signal insert the disparate modules of described multifunctional static strain indicator according to actual needs by the break-make of relay, it both can only be used as the bridge circuit converter, also can be used as strainmeter uses, realize the function of a tractor serves several purposes, improve the utilization rate of instrument.
Description of drawings
Fig. 1 is the basic structure synoptic diagram of multifunctional static strain indicator of the present invention.
Fig. 2 is the circuit diagram of the purposes selection control of multifunctional static strain indicator of the present invention.
Embodiment
See also Fig. 1, multifunctional static strain indicator of the present invention comprises at least: signal input part, power supply, the bridge circuit modular converter, amplifier, modulus (A/D) modular converter, the purposes selection control, and a plurality of signal output parts, in addition, described multifunctional static strain indicator also has CPU, storer (EPROM and RAM), I/O, driving circuit, the input and output that are connected with printer-keyboard (I/O) end and liquid crystal (LCD) demonstration etc., because these assemblies are identical with existing statical strain indicator, it is not the place of improvement of the present invention, so describe in further detail in this purposes and formation, illustrated at this to these assemblies.
Described power supply each assembly that is used to power to described multifunctional static strain indicator, to guarantee the normal operation of each assembly, described bridge circuit modular converter is used for converting strain to electric signal, in the present embodiment, described bridge circuit modular converter has 20 measurement points, after amplifying, the electric signal that described amplifier is used for that described bridge circuit modular converter is exported exports the A/D modular converter to, through the A/D modular converter described electrical signal conversion is exported after the digital signal, so can realize the overall process of strainmeter from the data acquisition to the data processing, be noted that, in the present embodiment, described multifunctional static strain indicator has and promptly can be used as signal input (going out) end that input can be used as output again, and control output (going into) end 2 and control output end 1, as shown in Figure 1, when described multifunctional static strain indicator used as strainmeter, its " control output (going into) end 2 " was as signal output part; " signal input (going out) " is as signal input part; When described multifunctional static strain indicator used as transfer trunk, its " control output (going into) end 2 " was as signal input part; " signal input (going out) " is as signal output part.
Described purposes selection control respectively with signal input part, amplifier, bridge circuit modular converter and a plurality of signal output part are connected, be used to select the connected mode of described signal input part and described amplifier and bridge circuit modular converter, so that described multifunctional static strain indicator can both can only also can be used as the instrument of finishing whole sampling and data processing task as the bridge circuit crossover tool according to user's needs, it also is used for selecting unlike signal output terminal output signal according to the purposes of described statical strain indicator simultaneously, see also Fig. 2, it is the control circuit synoptic diagram of described purposes selection control, described purposes selection control is a plurality of single-pole double-throw (SPDT) relays, the left end point of each relay is connected with signal input part and bridge circuit modular converter respectively, the right endpoint of each relay is connected with amplifier respectively, the lower extreme point of each relay is connected with a plurality of signal output parts respectively, when each relay control coil disconnects, 7 input signal cables of its selection (promptly ± the EX signal wire, ± SE signal wire, ± SIG signal wire and ground wire, wherein, EX represents the bridge pressure, SE represents bridge pressure feedback, SIG represents signal) not only connect respectively with the respective lines of bridge circuit modular converter, and simultaneously also and the connected mode of the respective lines of amplifier connection, make bridge circuit modular converter and amplifier operate as normal, under this kind situation, described multifunctional static strain indicator uses as strainmeter, as shown in Figure 2, its end points 1A, 1B and 1C three connect, end points 2A ~ 7A, end points 2B ~ 7B, the connected mode of end points 2C ~ 7C and end points 1A, 1B and 1C three's connected mode is similar, finish overall process from data acquisition to data processing, simultaneously described purposes selection control selects 7 input signal cables to be connected with signal input (going out) end, and select output line to be connected with control output (going into) 2 and control output 1, and after the common port of each relay contact and vacant termination are logical, it selects 7 input signal cables only to connect respectively with the respective lines of bridge circuit modular converter, and and the connected modes that all disconnect of the respective lines of amplifier, simultaneously described purposes selection control selects 7 input signal cables to be connected with control output (going into) 2, and select output line to be connected with signal input (going out) end, under this kind situation, described multi-usage strainmeter uses as the bridge circuit crossover tool, as shown in Figure 2, its end points 1A and 1c connect, and disconnect end points 2A ~ 7A with 1B, end points 2B ~ 7B, end points 2C ~ 7C also with end points 1A, 1B and 1C three's connected mode is similar.
In sum, multifunctional static strain indicator of the present invention can make input signal insert the disparate modules of described multifunctional static strain indicator according to actual needs by adopting relay, it both can only be used as the bridge circuit converter, also can be used as strainmeter uses, realize the function of a tractor serves several purposes, improve the utilization rate of instrument.
Claims (4)
1. multifunctional static strain indicator, it comprises signal input part, power supply, amplifier, analog-to-digital conversion module, bridge circuit modular converter and a plurality of signal output part, it is characterized in that also comprising:
The purposes selection control, be connected with signal input part, amplifier, bridge circuit modular converter and a plurality of signal output part respectively, be used to select the connected mode of described signal input part and described amplifier and bridge circuit modular converter, so that statical strain indicator can both can only utilize the bridge circuit modular converter also to can be used as the instrument that statical strain indicator is finished whole sampling and data processing task as the bridge circuit crossover tool according to user's needs, it also is used to cooperate the selection of purposes to adopt corresponding signal output terminal output signal simultaneously.
2. multifunctional static strain indicator as claimed in claim 1 is characterized in that: described purposes selection control is a relay.
3. multifunctional static strain indicator as claimed in claim 2 is characterized in that: described relay is the single-pole double-throw (SPDT) type.
4. multifunctional static strain indicator as claimed in claim 1 is characterized in that: described bridge circuit modular converter is the modular converter with 20 measurement points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100425069A CN101329161B (en) | 2007-06-22 | 2007-06-22 | Multifunctional static strain indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100425069A CN101329161B (en) | 2007-06-22 | 2007-06-22 | Multifunctional static strain indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101329161A CN101329161A (en) | 2008-12-24 |
| CN101329161B true CN101329161B (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100425069A Active CN101329161B (en) | 2007-06-22 | 2007-06-22 | Multifunctional static strain indicator |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008177B (en) * | 2021-02-22 | 2023-12-08 | 安徽环通工程试验检测有限公司 | Strain joint testing device and method based on vibrating wire strain gauge and bridge strain gauge |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20016638U1 (en) * | 2000-09-09 | 2001-05-31 | Schwarz, Axel, 68167 Mannheim | Interface between analog-digital converter and strain gauge (DMS) for measuring strains on solids |
| CN1721813A (en) * | 2004-07-14 | 2006-01-18 | 扬州泰司电子有限公司 | Constant-current type static resistance strain gauge |
| CN201059957Y (en) * | 2007-06-22 | 2008-05-14 | 上海自动化仪表股份有限公司 | Multipurpose statical strain indicator |
-
2007
- 2007-06-22 CN CN2007100425069A patent/CN101329161B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20016638U1 (en) * | 2000-09-09 | 2001-05-31 | Schwarz, Axel, 68167 Mannheim | Interface between analog-digital converter and strain gauge (DMS) for measuring strains on solids |
| CN1721813A (en) * | 2004-07-14 | 2006-01-18 | 扬州泰司电子有限公司 | Constant-current type static resistance strain gauge |
| CN201059957Y (en) * | 2007-06-22 | 2008-05-14 | 上海自动化仪表股份有限公司 | Multipurpose statical strain indicator |
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|---|---|
| CN101329161A (en) | 2008-12-24 |
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Owner name: SHANGHAI AUTOMATION INSTRUMENTATION CO., LTD. Free format text: FORMER OWNER: SHANGHAI AUTOMATIC INDUSTRUMENT AND METER CO LTD Effective date: 20150610 |
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Effective date of registration: 20150610 Address after: Zhabei District Shanghai City 200072 West Guangzhong Road No. 191 Building No. 7 Patentee after: Shanghai instrument and meter for automation company limited Address before: 200233, No. 41 Rainbow Road, Shanghai, Xuhui District Patentee before: Shanghai Automatic Industrument and Meter Co., Ltd. |