CN87208346U - Optoelectronic pitch penetrometer for asphalt - Google Patents
Optoelectronic pitch penetrometer for asphalt Download PDFInfo
- Publication number
- CN87208346U CN87208346U CN 87208346 CN87208346U CN87208346U CN 87208346 U CN87208346 U CN 87208346U CN 87208346 CN87208346 CN 87208346 CN 87208346 U CN87208346 U CN 87208346U CN 87208346 U CN87208346 U CN 87208346U
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- CN
- China
- Prior art keywords
- circuit
- plumbing bar
- photoelectricity
- sliding sleeve
- time base
- 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.)
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- Measurement Of Unknown Time Intervals (AREA)
Abstract
The utility model discloses a penetrometer which is suitable to the quality detection of viscous matter, in particular to pitch. The utility model is composed of an electronic automatic controlled system, an actuating device, and a display system of optical-measurement. The time of precise measurement of the controlled system is provided by a time-base circuit. An electric magnet and a clamping sliding sleeve match with a spring. The execution of controlling the signal is realized. Penetrating a scale which is arranged in the middle of a plumbing bar, the luminaire which is sent by a light-condensing bulb enlarges scale marks, and then reflects to a reading screen. The utility model has the advantages of high measuring precision, easy manufacture, and convenient operation. The pitch penetrometer is suitable for using in a construction site and a laboratory.
Description
The utility model relates to thick substances, particularly the penetrometer of the quality testing of pitch.
Existing bitumen needle forcemeter, its plumbing bar realize that by manual sustained release mechanism Measuring Time was as the criterion with the time interval that hand-held stopwatch shows, needed the high concentration of spirit during use, and the close fit of eye hand could guarantee the accuracy of measurement.Pen. is directly read by index dial.Although this penetrometer structure is the simplest, be subjected to the influence of human factor during owing to use, be difficult to reflect exactly actual pen..
Task of the present utility model provides a kind of automatic time delay circuit that has, and is descended by calutron control plumbing bar, projects on the reading screen after by optical measurement pen. being amplified, and is not subjected to artificial factor affecting, can accurately reflect the instrument of pen..
The utility model mainly is made up of electronic automatic control system, topworks and optical measurement display system three parts.
Electronic control system comprises rectification circuit, filtering circuit, mu balanced circuit, time base circuit and executive circuit.
Adopt the direct supply of bridge rectifier circuit output, after capacitor filtering and integrated circuit voltage stabilizing, stable voltage is offered time base circuit.
Time base circuit is with integrated circuit KA2555 or 5G1555, CA555, SE555, NE555, MC1555, and preferably KA2555 is main, is aided with resistance capacitance and forms.
The relay and the solenoid that are connected to the time base circuit signal output end are formed executive circuit.The time interval of its action is depended on the duration of charging of resistance capacitance.
Topworks is made up of clamper sliding sleeve, spring and an electromagnet that is passed by plumbing bar.Under normal conditions, the clamper sliding sleeve is owing to be subjected to the side packing of the effect of spring force to plumbing bar, makes the plumbing bar can not free-falling.Have only when executive circuit is connected, the electromagnet that is positioned at opposite side overcomes spring force and holds the clamper sliding sleeve, and plumbing bar could free-falling.Electromagnet is carried out control according to the break-make situation of circuit to plumbing bar.
The optical measurement display system is made up of Spot light bulb, magnifier, reflective mirror, reading screen.After the light source that Spot light bulb sends passes the transparent scale that is loaded on the plumbing bar middle part, reflex on the reading screen through amplifying.
Advantage of the present utility model is: from the motion that calculates the control plumbing bar of Measuring Time all is to be finished automatically by electronic circuit, has avoided the operate miss that varies with each individual; Project to after the optical measurement display system is amplified the plumbing bar slippage on the reading screen, improved the degree of accuracy of reading, the combination of custom circuit and ordinary optical element, the measuring accuracy that makes instrument is high and implement and easy to use.
Accompanying drawing 1 is the electronic automatic control system schematic diagram of embodiment;
Accompanying drawing 3 is front views of embodiment;
Accompanying drawing 4 is left views of embodiment;
Accompanying drawing 5 is vertical views of embodiment;
The utility model will be further described below in conjunction with accompanying drawing.
In the accompanying drawing 1, after energized, bridge rectifier circuit output DC source directly supplies Spot light bulb L1, and illuminating lamp L2 also offers burning voltage the time base circuit of being made up of elements such as integrated circuit (IC) 1 through three terminal integrated voltage stabilizer IC2.
Under normal conditions, 2 pin of integrated circuit (IC) 1 are noble potential, make 3 pin output low levels, and its inner discharge tube conducting simultaneously makes capacitor C 3 electric charges bleed off by 7 pin, and 6 pin that link with 7 pin are electronegative potential, and circuit is in the preliminary work state.
During use, turn the knob (7) of accompanying drawing 3 elevating brackets (18), asphalt sample (8) surface is just contacted with needle point, press operating key AN1, an earth potential is added in 2 pin of IC1, make the flip-flop states upset of IC1 inside, 3 pin output high level, relay J adhesive, the light emitting diode D4 that connects relay is become by light and extinguishes, clamper electromagnet (11) energising holds clamper sliding sleeve (13), and plumbing bar freely falls.
When integrated circuit (IC) 1 flip-flop states is overturn, discharge tube ends, power supply charges to capacitor C 3 by external resistance R 2, R3, R4, after (being generally 5 seconds or 60 seconds) through after a while, when capacitor C 3 current potentials rise to certain value by Zhejiang, 6 pin are noble potential, and integrated circuit (IC) 1 flip-flop states is overturn once more.Time-delay finishes, 3 pin output low levels, and relay J discharges, clamper magnet coil dead electricity, clamper sliding sleeve (13) resets, and plumbing bar is stopped to fall by packing; Simultaneously, light emitting diode D4 is through after delaying time, and is luminous again, and the indication reading is finished penetration measurement one time.
Button AN2 effect is preferentially to reset.To make the IC14 pin be earth potential when pressing AN2, no matter circuit was in any duty originally, and 3 pin output low levels, relay discharges, and the clamper electromagnet does not have electric current, and plumbing bar (12) is stopped to fall by clamper sliding sleeve (13) packing.Strong AN1 matches with control, makes things convenient for the zeroing of reading screen.Time base circuit is in the preliminary work state after AN2 replys.
In order to improve the circuit antijamming capability, set up shunt capacitance C1, prevent high frequency interference; Change the resistance value of resistance R 2, R3, R4, can change delay time.K1 is the time switch.
D1, D2 are holding circuits, prevent that solenoid from producing reverse voltage and puncturing IC1.
R5, R6, R7 are respectively the current-limiting resistor voltage dividers of D4, L1, L2, and K2 is a light switch.
The effect of C4, C5 is a filtering voltage regulation.
CT is an alternating current 220V plug, and K3 is an ac power switch.RD is a fuse.B is an ac power transformer.CZ is the external direct current power supply plug.External direct current power supply can prevent to burn integrated circuit (IC) 1 and IC2 because of careless reversal connection by bridge rectifier circuit protection back input.
The optical measurement display system is made up of Spot light bulb (1), magnifier (3), reflective mirror (4), reading screen (5) in the accompanying drawing 2.
Light source is sent in Spot light bulb (1) energising, sees through the scale (2) on the plumbing bar (12), and after being amplified by magnifier (3), through projecting to after reflective mirror (4) reflection on the reading screen, determined pitch pen. numerical value just can directly be read on the reading screen.
In the accompanying drawing 3,4,5, clamper sliding sleeve (13), spring (14), electromagnet (11) are formed topworks.
In normality, clamper sliding sleeve (13) is to the left with plumbing bar (12) packing, and during solenoid (19) energising, magnetic field overcomes spring (14) resistance, and the clamper sliding sleeve is drawn to the right side, allows plumbing bar (12) freely descend.
Baseline (17) from reading screen (5) can be read pen., and the vernier adjustment knob (16) of reading screen upper end is used for the zeroing of reading screen.The screw of plumbing bar bottom (10) compresses standard pin (9).
Claims (4)
1, photoelectricity bitumen needle forcemeter comprises pedestal (6), plumbing bar (12) and clamper sliding sleeve (13) thereof, spring (14), it is characterized in that:
A, adopt the electronic automatic control system of being made up of rectification circuit, filtering circuit, time base circuit and executive circuit, wherein time base circuit is aided with resistance capacitance by integrated circuit (IC) 1 and forms;
B, be positioned at the electromagnet (11) of plumbing bar (12) one sides, cooperate, realize the execution of controlling signal with clamper sliding sleeve (13) and spring (14);
The light source that c, Spot light bulb (1) send sees through and is loaded on the middle scale (2) of plumbing bar, after scale mark is amplified, projects to after the reflection on the reading screen (5).
2, photoelectricity bitumen needle forcemeter according to claim 1 is characterized in that: in the time base circuit, the pin 4 of integrated circuit (IC) 1 is equipped with button AN2.
3, photoelectricity bitumen needle forcemeter according to claim 1 is characterized in that: in the executive circuit, the normally closed joint J1-0 of relay J connects light emitting diode D4.
4, photoelectricity bitumen needle forcemeter according to claim 1 is characterized in that: reading screen (5) can align baseline (17) by rotating vernier adjustment knob (16) with the zero line of scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87208346 CN87208346U (en) | 1987-05-21 | 1987-05-21 | Optoelectronic pitch penetrometer for asphalt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87208346 CN87208346U (en) | 1987-05-21 | 1987-05-21 | Optoelectronic pitch penetrometer for asphalt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87208346U true CN87208346U (en) | 1987-12-31 |
Family
ID=4823631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87208346 Withdrawn CN87208346U (en) | 1987-05-21 | 1987-05-21 | Optoelectronic pitch penetrometer for asphalt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87208346U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074910B (en) * | 2006-05-19 | 2010-09-15 | 中国石油化工股份有限公司 | Need in-degree device and use in asphalt need in-degree determination |
| CN102607998A (en) * | 2012-02-28 | 2012-07-25 | 南通市建筑科学研究院有限公司 | Factice construction degree and asphalt needle penetration computer comprehensive determinator |
| CN101539567B (en) * | 2009-04-14 | 2013-04-03 | 江南大学 | Full-automatic petroleum asphalt penetration measuring instrument |
-
1987
- 1987-05-21 CN CN 87208346 patent/CN87208346U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101074910B (en) * | 2006-05-19 | 2010-09-15 | 中国石油化工股份有限公司 | Need in-degree device and use in asphalt need in-degree determination |
| CN101539567B (en) * | 2009-04-14 | 2013-04-03 | 江南大学 | Full-automatic petroleum asphalt penetration measuring instrument |
| CN102607998A (en) * | 2012-02-28 | 2012-07-25 | 南通市建筑科学研究院有限公司 | Factice construction degree and asphalt needle penetration computer comprehensive determinator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| 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 |