CN2417459Y

CN2417459Y - Pointer index/digital conversion device

Info

Publication number: CN2417459Y
Application number: CN 00226308
Authority: CN
Inventors: 盛伯弘
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-04-11
Filing date: 2000-04-11
Publication date: 2001-01-31
Anticipated expiration: 2010-04-11

Abstract

The utility model relates to a pointer index and digit converter. A conversion circuit 5 which generates and receives signals is arranged on a scale line 3 of a pointer index dial, and the conversion circuit 5 which generates and receives signals generates electric signals of binary dial codes, which are connected with a binary-decimal system decoding circuit 6; electric signals output by the binary-decimal system decoding circuit 6 are connected with a decoding and display circuit 7. The utility model digitizes a reading system of the pointer dial, which is convenient for automated processing and enlarges use range.

Description

Pointer index/digital quantizer

The utility model relates to a kind of converter that directly pointer index is changed into numeral demonstration and digital output.

Pointer index is widely adopted aspect two: at first, and in all kinds of physical construction instrument, as the frame of reference of such instrument.Though, because the fast development of A/D device, impel all kinds of digital displaying meters to occur in a large number, but because pointer index meter reading agility, directly perceived, custom, advantage such as stable, only need the monitoring scene of qualitative test in major part, or as first-selected instrument, a large amount of employing makes it have unshakable leading position in instrument with it.Secondly, pointer index also extensively adopts in regulation and control class mechanism, mechanism as indication regulation and control positions such as rotary type handle, handwheel, spiral micrometer, precise adjustable pitch, various portable balanced lever, slide rule, scales plays an important role in multiple production equipment.

Because pointer index disconnects aspect reading and record, index and regulation and control, data and networking, brings inconvenience to automatic measure control again.

The purpose of this utility model is the digitizing of pointer watch dial frame of reference can be convenient to pointer index/digital quantizer that robotization is handled in order to provide a kind of.

The purpose of this utility model can realize by following measure:

A kind of pointer index/digital quantizer is to be provided with signal to produce and receive change-over circuit at the reticle place of pointer index dial plate, signal produces with reception change-over circuit generation binary dial code electric signal and links to each other with the binary-decimal decoding scheme, and the electric signal of binary-decimal decoding scheme output links to each other with decoding, display circuit.

The utility model has following advantage compared to existing technology:

1, the utility model utilizes signal to produce and receives change-over circuit dial plate pointer index significant figure are converted to corresponding electric signal, be converted into decimal system electric signal through ad hoc binary-decimal decoding scheme again, be transformed into binary-coded decimal through conventional scrambler then and export his usefulness, or by conventional decoder for decoding, by display circuit it is shown, like this can the dial plate total indicator reading is system digitalized, be convenient to robotization and handle.

2, the utility model utilizes the decimal location decoding scheme of tool two position effective digitals output, can be unit series with dial plate reading standard, is convenient to splicing or deletes that the cell decode circuit can be designed to module, convenient pegging graft.

Concrete structure of the present utility model is provided by the following drawings:

Fig. 1 is a structural principle synoptic diagram of the present utility model

1-dial plate 2-scale is counted 3-reticle 4-pointer

The 5-signal produces and receives change-over circuit 6-binary-decimal decoding scheme 7-decoding, display circuit

Fig. 2 is that the utility model signal produces and receive change-over circuit example 1

Fig. 3 is that the utility model signal produces and receive change-over circuit example 2

Fig. 4 is the utility model decimal system two position effective digital decoding scheme schematic diagrams

Fig. 5 is the utility model decimal system three position effective digital decoding scheme schematic diagrams

Fig. 6 is the utility model decimal system four position effective digital decoding scheme schematic diagrams

Fig. 7 is the utility model decimal system two position effective digital cell decode circuit reduction circuit theory diagrams

Fig. 8 is the utility model decoding, display circuit embodiment schematic diagram

Fig. 9 is the utility model two position effective digital cell decode, display circuit embodiment schematic diagram

The utility model is also incited somebody to action in conjunction with the accompanying drawings, and embodiment is described in further detail:

With reference to Fig. 1, a kind of pointer index/digital quantizer is to be provided with signal to produce and receive change-over circuit 5 at reticle 3 places of pointer index dial plate 1, signal produces with the binary dial code electric signal that receives change-over circuit 5 generations and links to each other with binary-decimal decoding scheme 6, and the electric signal of binary-decimal decoding scheme 6 outputs links to each other with decoding, display circuit 7.

A kind of signal of pointer index/digital quantizer produces and receive change-over circuit 5 can adopt opto-electronic conversion or brush contact chromacoder output electric signal, again through amplification, shaping, anti-phase after high level of output device and the low level binary dial coded signal of multidigit.

Produce and receive the change-over circuit illustration for photosignal with reference to Fig. 2, be to be provided with optical window 8 at reticle 3 places of dial plate 1, after light activated element 9 received, the output electric signal was through amplifier 10 amplification, these schmitt trigger 11 shapings, export after phase inverter 12 is anti-phase again by the light that sees through in the optical window 8.

With reference to Fig. 3, for brush contact electric signal produces and receives the change-over circuit illustration, the brush 13 that links to each other with high level touches mutually with the contact 14 at dial plate 1 reticle 3 places, and the contact 14 that pointer 4 drive brushes 13 slip on the dial plate 1 produces electric signal, exports after above-mentioned amplification, shaping.

With reference to Fig. 4, a kind of binary-decimal decoding scheme 6 of pointer index/digital quantizer be decoding with two position effective digitals of dial plate 1 pointer 4 indexes as the cell decode circuit, simply making a variation on the basis of cell decode circuit then forms multiple dial plate decoding scheme.The cell decode circuit is the electric signal with identical first position effective digital in two position effective digitals to be connected to through the diode correspondence on the main channel of its significant figure export; The signal that will have identical second position effective digital is divided into two the tunnel through diode and is connected to its corresponding end output; All significant figure are all received same output terminal, as a token of output terminal by diode then.Concrete as follows by method, the

termination

00,10,20 of the corresponding output of dial plate first position effective digital soon ... 90 by diode D ₀₁, D ₁₁, D ₂₁D ₉₁Receive S respectively ₀, S ₁, S ₂S ₉On, constitute cell decode first numeral in full force and effect of circuit (tens) 0,1,2 ... 9 main channel.The lead end that will have identical first (ten) numbering number again by diode by to the output termination of above-mentioned tool jack per line, promptly 05,15,25 ... 95 pass through D ₀₆, D ₁₆, D ₂₆... D ₉₆Receive S ₀, S ₁, S ₂... S ₉On, constitute S ₀, S ₁, S ₂S ₉Signal keep passage.

With all

terminations

00,10,20 ... 90 and 05,15,25 ... 95 by diode D ₀₀, D ₁₀, D ₂₀D ₉₀And D ₀₅, D ₁₅, D ₂₅D ₉₅Receive together, constitute output termination F ₀, be the mark output end of cell decode circuit, promptly last position effective digital output terminal.F ₀Two deliveries are arranged: one is F ₀, another is F ₀＇, F ₀Directly import display circuit, and F ₀＇ is spliced into small-sized, medium-sized, large-scale decoding scheme by diode and other cell decode circuit and uses.

Dial plate exported have identical second numbering in the termination receive together by diode the termination of (individual position), constitute T ₀, T ₅Delivery.Promptly 00 by diode D ₀₂10 by diode D ₁₂20 by diode D ₂₂90 by diode D ₉₂Receive together, form T ₀Delivery.And 05 by diode D ₀₁15 by diode D ₁₇25 by diode D ₂₇95 by diode D ₉₇Receive together, form T ₅Delivery.T ₀, T ₅Constitute second position effective digital (units) " 0 " " 5 ".

With reference to Fig. 5, the dial plate of a complexity can form by connecing after the repetition of unit dial plate, and corresponding decoding scheme also can repeat the back by forming by the cell decode circuit.Connected one by one by ten unit dial plates and to combine, constitute a small-sized dial plate, the dial plate scale diffuses into 000 to 995 from 00 to 95 of unit dial plate, has constituted three position effective digital reading dial plates.Corresponding small-sized decoding scheme too, by ten cell decode circuit U ₁The formation that continues, input termination diffuse into 200 from 20, and corresponding 200 the output termination constitutes three position effective digitals with interior dial code, and first in three position effective digitals by F ₀, F ₁, F ₂... F ₉Constitute.Second by S ₀, S ₁, S ₂... S ₉Constitute, the 3rd by T ₀, T ₅Constitute.M ₀Be the identification delivery of whole small-sized decoding scheme, promptly last position effective digital output termination.M is also arranged ₀And M ₀Two terminations of ＇, M ₀Directly import display circuit, and M ₀＇ is spliced into medium-sized decoding scheme by diode and other small-sized decoding schemes.

With reference to Fig. 6, a medium-sized dial plate can be continued by ten small-sized dial plates and constitute, and dial plate scale number diffuses into 0000 to 9995 from 000 to 995 of small-sized dial plate, constitutes the medium-sized reading dial plate of four position effective digitals.Corresponding medium-sized decoding scheme G ₁, also be by ten small-sized decoding scheme E ₁One with formations that continues, and the input termination diffuses into 2000 from 200, exports the termination and constitutes four position effective digitals with interior dial code for corresponding 2000, and first in four position effective digitals by M ₀, M ₁, M ₂... M ₉Constitute.Second by F ₀, F ₁, F ₂... F ₉Constitute, the 3rd by S ₀, S ₁, S ₂... S ₉Constitute, the 4th by T ₀, T ₅Constitute.And L ₀Exporting for the identification of whole medium-sized decoding scheme is last position effective digital output termination, also divides L ₀And L ₀Two terminations of ＇, L ₀Directly import display circuit, and L ₀＇ is spliced into large-scale decoding scheme by diode and other medium-sized decoding schemes.

With reference to Fig. 7 is that the unit dial plate of two position effective digitals is simplified connection, after the unit dial plate is divided into ten five equilibriums, can not divide again.Whenever be divided into 1/10th between adjacent ten reticles, with 00,10,20 ... 90 expression output terminations, its corresponding cell decode circuit only needs

U

₁05,15,25 ... 95 termination ground connection promptly are reduced to the cell decode circuit that adapts to this dial plate.In like manner can obtain five five equilibriums, quartern simplification connection schematic diagram.Also can obtain the cell decode circuit part and use reduced graph.

The electric signal of binary-decimal decoding scheme output of the present utility model is deciphered demonstration by decoding, the display circuit of routine.With reference to Fig. 8 is conventional decoding, display circuit, by the binary-decimal decoding scheme,, be translated into the decadic signaling that several groups 0 to 9 step-by-steps are arranged according to the order of sequence with the binary dial code of various complexity, to the complete decadic signaling that each group 0 to 9 is arranged, display packing is the same.Be S ₀, S ₁, S ₂... S ₉F ₀, F ₁, F ₂... F ₉M ₀, M ₁, M ₂... M ₉L ₀, L ₁, L ₂... L ₉The conventional procedure for displaying of each group is the same, is called the one-bit digital display circuit.Its conventional display mode has multiple available, and Fig. 8 is a kind of.Signal is from S ₀, S ₁, S ₂... S ₉After the input, at first pass through IC ₁, IC ₂(being CC4014) buffering is amplified, and reenters IC ₃(CC40147) 10 lines-4 line priority encoder is weaved into binary-coded decimal output with decadic signaling.The binary-coded decimal one tunnel of output is through A ₀, B ₀, C ₀, D ₀Output is to be for external application.Another road input IC ₄(MC14511), decipher, latch, drive, export seven sections and show numerical value to LDD.And latch by BG ₀Control, latch signal is by D ₁, D ₂, D ₃, D ₄Obtain.R ₁Be LDD brightness regulation resistance; K ₀Be the radix point gauge tap; R ₄, C ₁Latch regulating and controlling voltage; R ₂, R ₃, C ₁For latching time-controllable.

With reference to Fig. 9, a unit display circuit can show a complete cell decode result, and it is made of three parts.Be that A is the mantissa display part, B is the one digit number display part, and C is the full scale display part.

A mantissa display part: have only 0,5 liang of number, in the one digit number display circuit, with input end 1-4,6-9 by ground promptly is simplified to the A of figure ten.The effect model of all components and parts is the same with Fig. 9.

B one position effective digital display part.Be Fig. 8.

C full scale display part only needs to show " 1 ", and output full scale caution signal.Generally because of M ₁Signal does not possess the driving function, through IC ₁(CC4050) after buffering is amplified, directly drive 3LDD and show " 1 ", export the full scale caution signal simultaneously, use as counting, warning.

Other display circuits: the display circuit that is complementary with small-sized decoding scheme only needs the B among the figure ten is partly repeated once, shows three position effective digitals.With the display circuit that medium-sized decoding scheme is complementary, only need in figure ten, B partly to be repeated secondary and get final product, show four position effective digitals.The rest may be inferred by analogy for it.

Determining of the position of radix point: it is fixed where radix point is come by K switch, by the brightness regulation resistance R ₁Regulate its luminosity.

Claims

1, a kind of pointer index/digital quantizer, it is characterized in that locating to be provided with signal at the reticle (3) of pointer index dial plate (1) produces and receive change-over circuit (5), signal produces with the binary dial code electric signal that receives change-over circuit (5) generation and links to each other with binary-decimal decoding scheme (6), and the electric signal of binary-decimal decoding scheme (6) output links to each other with decoding, display circuit (7).

2, pointer index/digital quantizer as claimed in claim 1, it is characterized in that described signal produces and receives change-over circuit (5) and can adopt opto-electronic conversion or brush contact chromacoder output electric signal, export through amplification, shaping, anti-phase back again and only contain the dial code signal that a high level and multidigit low level have binary mode.

3, pointer index/digital quantizer as claimed in claim 1, it is characterized in that described binary-decimal decoding scheme (6) be with two position effective digitals of dial plate (1) pointer (4) index be decoded as the cell decode circuit, on the basis of cell decode circuit, splice or simplify; Wherein the cell decode circuit is to export on electric signal warp with identical first position effective digital in two position effective digitals or the corresponding main channel that is connected to its significant figure; The electric signal that will have identical second position effective digital is divided into the two-way warp or is connected to corresponding end output; All significant figure are all by line or receive same output terminal, as a token of output terminal then.

4, as claim 1 or 3 described pointer index/digital quantizers, the mark output end that the mark output end that it is characterized in that described binary-decimal cell decode circuit (6) also can be used as with other same unit decoding schemes is spliced to form the various forms decoding scheme; The cell decode circuit also can partly use, and component part is used decoding scheme.