CN104677298A - Linear grating displacement sensor - Google Patents
Linear grating displacement sensor Download PDFInfo
- Publication number
- CN104677298A CN104677298A CN201510138971.7A CN201510138971A CN104677298A CN 104677298 A CN104677298 A CN 104677298A CN 201510138971 A CN201510138971 A CN 201510138971A CN 104677298 A CN104677298 A CN 104677298A
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- Prior art keywords
- linear grating
- read head
- linear
- displacement transducer
- reading head
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- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to a linear grating displacement sensor, which comprises a linear grating ruler, a reading head, a communication cable and a segmentation box, wherein the reading head is connected with the segmentation box though the communication cable; the bottom surface of the reading head is parallel to the linear grating ruler and is not contacted with the linear grating ruler; and an LED mounting indicator light is arranged on the top surface of the reading head. The reading head always is not contacted with the linear grating ruler in the operation process; high-speed running of equipment can be realized; and the sensor is not damaged.
Description
Technical field
The present invention relates to a kind of linear displacement transducer, comprise the linear grating chi of band groove, read head, telecommunication cable and segmentation box.
Background technology
The function of linear displacement transducer is to convert straight line mechanical displacement to electric signal, scope involved by the metering system of displacement is quite widely, thin tail sheep commonly uses strain-type, inductance type, differential transformer type, eddy current type, Hall element detect, and large displacement is commonly used the sensing technologies such as inductosyn, grating, appearance grid, magnetic grid and measured.The fields such as linear displacement transducer is used in machine tooling usually, measuring instrument, and the linear displacement transducer of contact can affect high speed performance and measuring accuracy.
Grating is on two blocks of optical glass or has on the metal surface of strong reflection ability, engraves identical evenly intensive parallel fine rule.Two pieces of glass plates or sheet metal overlap are placed, and make there is a small angle theta between their groove, now, due to the interference effect of light, with grating grid almost vertical direction on will produce light and dark striped, these stripeds are called Moire fringe, devise grating sensor according to Moire fringe.Glass plate or sheet metal grating scale limit by self level and material behavior usually, and length will be made into certain specification, can not reach requirement for some equipment having particular length to require.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of contactless linear displacement transducer, to realize the high speed performance of lathe.
For solving the problems of the technologies described above, linear grating displacement transducer provided by the invention, by linear grating chi, read head, telecommunication cable, segmentation box composition, reading device is connected by telecommunication cable with segmentation box, it is characterized in that: there is groove in described linear grating chi front, and the back side is with non-drying glue layer; Have two through holes bottom described read head, the bottom surface of read head does not contact with linear grating chi is parallel; This read head end face is equipped with LED installs pilot lamp.Described linear grating chi is stainless steel grating scale, can intercept corresponding length as required.The indicative function of the LED installation pilot lamp of described read head end face makes the fast easier for installation of read head.Because read head does not contact all the time with linear grating chi operational process, equipment high-speed cruising can be realized, and do not damage sensor.
Accompanying drawing explanation
Fig. 1 is the attached view of linear displacement transducer of the present invention.
Fig. 2 is the front view of linear displacement transducer read head of the present invention and grating scale.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.Linear displacement transducer shown in Fig. 1 is made up of linear grating chi 1, read head 2, telecommunication cable 3, segmentation box 4, read head 2 is connected by telecommunication cable 3 with segmentation box 4, linear grating chi 1 is stainless steel grating scale, cut Len req, it is pasted along direction of motion, paste plane and have certain planarity requirements; Read head 2 screw is installed on pedestal by two through holes 6, as shown in Figure 2, bottom surface 8 does not contact with linear grating chi 1 is parallel, segmentation box 4 connects control module and feed circuit by interface, after energising, the LED installation pilot lamp 7 of read head 2 end face shows different colours and represents unlike signal intensity, green expression installation site is good, signal is strong, orange expression installation site is general, and signal is general, and red expression installation site is poor, the position of the color adjustment read head 2 of pilot lamp 7 is installed, until display is green according to LED.
Claims (3)
1. a linear grating displacement transducer, by linear grating chi (1), read head (2), telecommunication cable (3), segmentation box (4) composition, reading device (2) is connected by telecommunication cable (3) with segmentation box (4), it is characterized in that: there is groove (5) in described linear grating chi (1) front, and the back side is with non-drying glue layer; Two through holes (6) are arranged at described read head (2) bottom; The bottom surface (8) of read head (2) does not contact with linear grating chi (1) is parallel; This read head (2) end face is equipped with LED installs pilot lamp (7).
2. linear grating displacement transducer according to claim 1, is characterized in that: described linear grating chi (1) is stainless steel grating scale.
3. linear grating displacement transducer according to claim 1, is characterized in that: the LED of described read head (2) end face installs pilot lamp (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138971.7A CN104677298A (en) | 2015-03-27 | 2015-03-27 | Linear grating displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138971.7A CN104677298A (en) | 2015-03-27 | 2015-03-27 | Linear grating displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104677298A true CN104677298A (en) | 2015-06-03 |
Family
ID=53312670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510138971.7A Pending CN104677298A (en) | 2015-03-27 | 2015-03-27 | Linear grating displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104677298A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023016156A1 (en) * | 2021-08-11 | 2023-02-16 | 苏州汇川控制技术有限公司 | Communication-type magnetic scale read head, magnetic scale apparatus, electric motor module and position measurement method |
-
2015
- 2015-03-27 CN CN201510138971.7A patent/CN104677298A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023016156A1 (en) * | 2021-08-11 | 2023-02-16 | 苏州汇川控制技术有限公司 | Communication-type magnetic scale read head, magnetic scale apparatus, electric motor module and position measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150603 |
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| WD01 | Invention patent application deemed withdrawn after publication |