CN1006909B - Photoelectric vibration measurer for spindle - Google Patents
Photoelectric vibration measurer for spindleInfo
- Publication number
- CN1006909B CN1006909B CN 88100596 CN88100596A CN1006909B CN 1006909 B CN1006909 B CN 1006909B CN 88100596 CN88100596 CN 88100596 CN 88100596 A CN88100596 A CN 88100596A CN 1006909 B CN1006909 B CN 1006909B
- Authority
- CN
- China
- Prior art keywords
- circuit
- light
- photoelectric
- spindle
- instrument
- 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.)
- Expired
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- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention relates to a photoelectric spindle vibration meter using a technique that a light path blocked by a detected object to measure vibration. The vibration meter comprises an optical system and an electrical system. Two diaphragms are arranged at different places in the vibration meter, wherein light beams outputted from the diaphragms are converted into electronic signals by photoelectric elements, and the electronic signals respectively pass through two channels to detect a detected object and monitor the operational condition of an instrument. The instrument adopts a circuit in a closed-loop regulation mode, so that a light source can be automatically regulated.
Description
The present invention relates to a kind of photoelectric vibration measurer for spindle that is used to detect spindle vibration situation.
Mostly existing vibration measurer for spindle is to be made up of light source, collector lens, projection objective, Guang Lan, photoelectric switching circuit, demonstration output indication, and the vialog of being made up of this cover system exists the end that covers of stability, poor repeatability mostly.This is because the output from the light source to the measurement result has only a path, penetrate the veiling glare that comes in addition from light source and also together be converted to signal of telecommunication output by the light hurdle, also has the change of other conditions such as its environment temperature in addition, so the output valve of circuit is a random value, therefore, brought many destabilizing factors to measurement result, in use will constantly calibrate, demarcate to satisfy test request to instrument.
The purpose of this invention is to provide a kind of photoelectric vibration measurer for spindle, utilize the measuring method of photoelectricity combination, measure in textile industry, the situation of spindle vibration, and improve measuring stability and repeatability greatly, make its measure error narrow down to bottom line.
The present invention considers that the essential defect of prior art is that output signal relies on the variation of input signal, but input signal is subject to external interference at work and can not suppresses, and changes with it, has caused the static light electric current instability of instrument.The present invention has adopted closed control circuit, and output, input are influenced each other, and reaches the purpose that improves stability, simultaneously, utilize optical theory, two light hurdles are set in its focus and imaging place, imaging place light hurdle divides a, b two optical windows, and one connects TCH test channel, and one connects the supervision passage.Make its light path not disturbed by extraneous veiling glare, luminous flux remains unchanged, and has improved the stable and repeated of instrument effectively.The present invention also is provided with the TCH test channel of being made up of circuit such as peak holding circuit, left and right sides extreme position voltage comparator circuit, the overproof warning circuit of amplitude, beep warning and digital voltage demonstrations, the supervision passage that is made of automatic control circuit is to eliminate extraneous various random disturbances.
That the present invention has is easy to use, be easy to carry, stability is high, good reproducibility certainty of measurement advantages of higher, it utilizes many light hurdle to suppress the interference of veiling glare effectively, adopt the change at random of closed loop control instrument, simultaneously, in the mode of numeral demonstration, buzzing warning and indicator lamp, tell the residing state of user's measured object of instrument, be in the light entirely or exceed by indicator lamp entirely and indicate respectively, over-difference of vibration is by the beep audible alarm, to the calibration of instrument with demarcate and then shown by digital display.Though the present invention has increased some circuit, in design, selected integrated package for use, therefore, the instrument volume is little, in light weight, easy to carry.In the fixing test place, when enlarging test zone, also can increase auxiliary equipment such as computer.
Fig. 1: instrument block diagram.
Fig. 2: instrument index path.
Light source (1) is placed on the focus of collector lens (2), light becomes directional light to penetrate through collector lens (2), focus on the light hurdle (5) that is arranged on this focal plane of lens through projection objective (4), place distance to equal one times of burnt strong point of projection objective (4) and block part light on spindle (3) from collector lens (2).The light beam that light source (1) penetrates focuses on than on the more bigger small-bore Guang Lan (5) of filament image by collector lens (2), projection objective (4), has prevented the veiling glare interference effectively.Focus on light beam on the light hurdle (5) and pass through a, the b optical window on imaging place light hurdle (6) again respectively.The light beam that sees through light hurdle (6) is converted to the signal of telecommunication by one 2 quadrant photocell with optical signal and inserts preamplifier (7), (14).The test beams that a optical window sees through is converted to signal of telecommunication input preamplifier (7) by a quadrant, the monitoring beam that the b optical window sees through is converted to signal of telecommunication input preamplifier (14) by another quadrant, preamplifier all adopts the mode of current-voltage conversion, makes spindle the be in the light variation (amplitude) of area and the variation retention wire sexual intercourse of photoelectric current.After conversion, difference input test passage and supervision passage.
TCH test channel is divided into two-way with the output signal of preamplifier (7) through the voltage signal of follower (8) output, and one the tunnel gives left and right sides extreme position (working region of instrument) voltage comparator (9), (11), through comparing the rear drive light emitting diode.Peak holding circuit (10) is imported through capacitance in another road, after the overproof warning circuit of amplitude (12) compares, drives buzzer and sends interrupted audible alarm.Digital display (13) can demonstrate peak value simultaneously.When change-over switch (17) was placed work, inspection position respectively, whether static demarcating or the inspection apparatus work that can carry out instrument was normal.During calibration instrument, the present invention adopts the standard pin verification, therefore, has increased substantially accuracy of instrument.
Monitor that passage is to be made of a cover automatic control circuit (15), optical signal is after opto-electronic conversion, input preamplifier (14), a standard value input is compared with advance signal, difference is relatively removed the control ratio integral controller, remove to control light source by adjuster again, form a closed-loop adjustment loop, keep photoelectric current constant.
(16) be power supply.
Claims (3)
1, a kind of photoelectric vibration measurer for spindle, form by optical system and photoelectric switching circuit, comprise lamp condenser lens, projection objective, set light hurdle, photoelectric switching circuit, demonstration output indicator on the focus of projection objective, it is characterized in that, in projection objective imaging place the light hurdle of being made up of two optical windows is set, two optical windows are connected with TCH test channel with the supervision passage respectively.
2, vialog according to claim 1 is characterized in that, TCH test channel is by peak holding circuit, left and right sides extreme position voltage comparator circuit, and the overproof warning circuit of amplitude is formed.
3, vialog according to claim 1 is characterized in that, monitors that the output of the automatic control circuit of passage connects with light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100596 CN1006909B (en) | 1988-02-27 | 1988-02-27 | Photoelectric vibration measurer for spindle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88100596 CN1006909B (en) | 1988-02-27 | 1988-02-27 | Photoelectric vibration measurer for spindle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1037369A CN1037369A (en) | 1989-11-22 |
| CN1006909B true CN1006909B (en) | 1990-02-21 |
Family
ID=4831418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88100596 Expired CN1006909B (en) | 1988-02-27 | 1988-02-27 | Photoelectric vibration measurer for spindle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1006909B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408988C (en) * | 2002-12-20 | 2008-08-06 | Esec贸易公司 | Device for measuring amplitude of vibrating tubule end |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101382550B (en) * | 2008-10-06 | 2012-07-11 | 北京金达清创环境科技有限公司 | ELISA kit for detecting nitrobenzene compounds and use thereof |
-
1988
- 1988-02-27 CN CN 88100596 patent/CN1006909B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100408988C (en) * | 2002-12-20 | 2008-08-06 | Esec贸易公司 | Device for measuring amplitude of vibrating tubule end |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1037369A (en) | 1989-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |