CN201075022Y - Digital weighting sensor - Google Patents
Digital weighting sensor Download PDFInfo
- Publication number
- CN201075022Y CN201075022Y CNU2007201127255U CN200720112725U CN201075022Y CN 201075022 Y CN201075022 Y CN 201075022Y CN U2007201127255 U CNU2007201127255 U CN U2007201127255U CN 200720112725 U CN200720112725 U CN 200720112725U CN 201075022 Y CN201075022 Y CN 201075022Y
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- elastic body
- processing module
- weighing sensor
- digital
- utility
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Abstract
A digital weighing sensor includes an elastic body and a base which is matched with the elastic body, as well as an analog part which is arranged on the elastic body and is composed of a resistance strain gauge and a Wheatstone bridge; the utility model is characterized in that one end of the elastic body is outward extended with a section of lengthening body, a concave hole is arranged on the lengthening body, the interior of the concave hole is provided with a digital processing module, and the digital processing module is connected with an analog part by phase separation. The utility model has the advantages that the utility model integrates the digital processing module by the analog part and has only one combined surface, so the utility model has better sealing property and stability; compared with similar products, the structure is more reasonable, the steel resources are saved and the production cost is reduced.
Description
Technical field:
The utility model relates to a kind of sensor, relates in particular to a kind of sensor that is used for truck scale.
Technical background:
Truck scale is as a kind of large tonnage instrument of weighing, generally be used for the metering of businessman or factories and miness to bulk supply tariff, it mainly is made up of load-bearing force transmission mechanism, high-precision sensor and weighting display instrument, wherein sensor generally all adopts analog sensor at present, both by elastic body deformation in the sensor, the resistance strain gage resistance that is pasted on the elastic body is changed, produce a voltage signal, be sent to then on the chip of processor, chip is handled signal then, be passed on the screen on the processor, convert thereof into concrete numeral and show.But the voltage signal that analog sensor produces is also unstable, when signal stronger the time, handle more accurately, when a little less than the signal when a bit, just handle inaccurately.Employing increases digital signal processing module again in the simulation part, analog signal conversion is become digital signal, can address this problem, the mode that social at present general producer takes is to install a box again additional in the side of sensor, and digital signal processing module is placed on wherein, draws a quad on box again, outputing to terminal box handles for instrument, but box of independent connection has increased and has caused packing less link together, and overall sealing performance is lower than original.
Summary of the invention:
The utility model has mainly solved general sensor out of true, and the problem of sealing difference provides a kind of degree of accuracy height, good airproof performance, simple and reasonable digital weighing sensor.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of digital weighing sensor, comprise an elastic body and a base that matches with elastic body, and be arranged on the simulation part of being formed by resistance strain gage and Hui Sitong bridge circuit on the elastic body, be characterized in being outward extended with one section extended body at elastic body one end, and extended body is provided with a shrinkage pool, be provided with digital signal processing module in shrinkage pool, this digital signal processing module is connected with the simulation part branch.
As a kind of preferred version of such scheme, described elastic body is rectangular-shaped, is provided with the loading end of arc in the middle of the elastic body upper surface, is respectively arranged with the bolt hole one of vertical direction on the elastic body two ends.
A kind of preferred version as such scheme, on the elastic body two sides, be symmetrically arranged with a pair of strain bore respectively, being provided with line hole one between strain bore and strain bore interconnects, also being provided with line hole two between shrinkage pool and strain bore interconnects, resistance strain gage is arranged in the strain bore respectively, the logical cable-through hole of electric wire is connected respectively to resistance strain gage on four brachium pontis on the Hui Sitong bridge circuit, and digital signal processing module is connected with the Hui Sitong bridge circuit.
As a kind of preferred version of such scheme, described base two ends be respectively equipped with elastic body on the bolt hole two that matches, be respectively equipped with mount pad in lower end, base both sides, on mount pad, be respectively arranged with some mounting holes.
As a kind of preferred version of such scheme, described elastic body extended body partial-length is 25mm～45mm.Elastic body length is 270mm in the utility model, and the length of base is 240mm, and wherein the extended body partial-length is 30mm.
As a kind of preferred version of such scheme, the height of described base is 57mm～47mm.The height of base is 52mm in the utility model.
The utility model has the advantages that the logical simulation part of digital signal processing module is combined only have a faying face, make to have more sealing and stability that it is more reasonable to compare the like product structure, has saved iron and steel resource, has reduced production cost.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the elastomeric a kind of planar structure synoptic diagram of the utility model;
Fig. 2 is the elastomeric another kind of planar structure synoptic diagram of the utility model;
Fig. 3 is a kind of planar structure synoptic diagram of the utility model elastic body and base combination;
Fig. 4 is the another kind of planar structure synoptic diagram of the utility model elastic body and base combination.
1-extended body 2-shrinkage pool 3-loading end 4-strain bore 5-bolt hole one
One 7-line hole, 6-line hole, two 8-bolts hole, two 9-mount pads
The 10-mounting hole
Embodiment:
The utility model mainly is made up of elastic body, base and circuit part.Elastic body as depicted in figs. 1 and 2, described elastic body is rectangular-shaped, be provided with the loading end 3 of arc in the middle of the elastic body upper surface, on the elastic body two sides, be symmetrically arranged with a pair of strain bore 4 respectively, at the elastic body two ends perpendicular to the square bolt hole 1 that is respectively equipped with of strain bore; Be extended with one section extended body 1 at elastic body one end, extended body is provided with a circular shrinkage hole 2.Described elastic body length is 270mm.Wherein the extended body partial-length is 30mm.
According to Fig. 3 and base shown in Figure 4, this base matches with elastic body, is respectively equipped with the bolt hole 28 that matches with elastic body upper bolt hole one 5 positions on the base two ends, by bolt elastic body and base is tightly linked together.The lower end is respectively equipped with mount pad 9 in the middle of the base both sides, is respectively equipped with two mounting holes 10 on mount pad, by securing member base is installed on the bottom surface that claims body.Described base length is 240mm, highly is 52mm.
As shown in Figure 2, between strain bore and strain bore, be provided with the one 6 mutual conductings of line hole, between shrinkage pool 2 and strain bore, be provided with the 27 mutual conductings of line hole, in strain bore, be respectively equipped with resistance strain gage, and logical cable-through hole resistance strain gage is connected on the brachium pontis of Hui Sitong bridge circuit, be provided with digital signal processing module in shrinkage pool, this digital signal processing module links to each other with the Hui Sitong bridge circuit.Described digital signal processing module mainly is made up of AD chip (CS5532).
The principle of work of sensor is: by elastomeric physical deformation, the interior resistance strain gage resistance of strain bore is changed, cause the Hui Sitong brachium pontis unbalance, will produce a voltage signal, voltage signal enters the AD chip, convert digital signal then to, digital signal enters single-chip microcomputer again and carries out computing and input, output, if external display then can directly show weight data.
Claims (6)
1. digital weighing sensor, comprise an elastic body and a base that matches with elastic body, and be arranged on the artificial circuit part of being formed by resistance strain gage and Hui Sitong bridge circuit on the elastic body, it is characterized in that: be outward extended with one section extended body (1) at elastic body one end, and extended body is provided with a shrinkage pool (2), be provided with digital signal processing module in shrinkage pool, this digital signal processing module is connected with the simulation part branch.
2. digital weighing sensor according to claim 1 is characterized in that described elastic body is rectangular-shaped, is provided with the loading end (3) of arc in the middle of the elastic body upper surface, is respectively arranged with the bolt hole one (5) of vertical direction on the elastic body two ends.
3. digital weighing sensor according to claim 1, it is characterized in that on the elastic body two sides, being symmetrically arranged with respectively a pair of strain bore (4), being provided with line hole one (6) between strain bore and strain bore interconnects, also being provided with line hole two (7) between shrinkage pool (2) and strain bore interconnects, resistance strain gage is arranged in the strain bore respectively, the logical cable-through hole of electric wire is connected respectively to resistance strain gage on four brachium pontis on the Hui Sitong bridge circuit, and digital signal processing module is connected with the Hui Sitong bridge circuit.
4. digital weighing sensor according to claim 1 is characterized in that at described base
Two ends be respectively equipped with elastic body on the bolt hole two (8) that matches, be respectively equipped with mount pad (9) in lower end, base both sides, on mount pad, be respectively arranged with some mounting holes (10).
5. digital weighing sensor according to claim 1 is characterized in that described elastic body extended body (1) partial-length is 25mm～45mm.
6. digital weighing sensor according to claim 1, the height that it is characterized in that described base is 57mm～47mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201127255U CN201075022Y (en) | 2007-07-27 | 2007-07-27 | Digital weighting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201127255U CN201075022Y (en) | 2007-07-27 | 2007-07-27 | Digital weighting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075022Y true CN201075022Y (en) | 2008-06-18 |
Family
ID=39520282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201127255U Expired - Fee Related CN201075022Y (en) | 2007-07-27 | 2007-07-27 | Digital weighting sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075022Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105501452A (en) * | 2015-12-11 | 2016-04-20 | 中航电测仪器股份有限公司 | Cargo hook device for helicopter as well as usage method and control method of cargo hook device |
| CN108709492A (en) * | 2018-08-24 | 2018-10-26 | 霍丁格包尔文(苏州)电子测量技术有限公司 | A kind of hermetically sealed strain gauge transducer |
-
2007
- 2007-07-27 CN CNU2007201127255U patent/CN201075022Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105501452A (en) * | 2015-12-11 | 2016-04-20 | 中航电测仪器股份有限公司 | Cargo hook device for helicopter as well as usage method and control method of cargo hook device |
| CN108709492A (en) * | 2018-08-24 | 2018-10-26 | 霍丁格包尔文(苏州)电子测量技术有限公司 | A kind of hermetically sealed strain gauge transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ma'anshan Younaite weighing apparatus manufacturing Co. Ltd. is Ding Assignor: Liu Wei Contract fulfillment period: 2009.8.12 to 2015.7.8 Contract record no.: 2009340000241 Denomination of utility model: Wireless digital weighing sensor with zero power consumption in sleep mode Granted publication date: 20080618 License type: Exclusive license Record date: 20090901 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.8.12 TO 2015.7.8; CHANGE OF CONTRACT Name of requester: MAANSHAN ZHENGDING UNITED WEIGHING APPARATUS MANUF Effective date: 20090901 |
|
| PP01 | Preservation of patent right |
Effective date of registration: 20100524 Granted publication date: 20080618 |
|
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20110524 Granted publication date: 20080618 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20100727 |