CN2401147Y

CN2401147Y - Digital display electronic body procurvation measurer

Info

Publication number: CN2401147Y
Application number: CN 00200645
Authority: CN
Inventors: 张如一; 赵东红
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-18
Filing date: 2000-01-18
Publication date: 2000-10-18
Anticipated expiration: 2010-01-18

Abstract

The utility model relates to a digital display electronic body procurvation measurer, which comprises a measuring circuit which measures the relative variation of the capacitance and the displacement of a capacitive grating, a base and a guide rod which is arranged on the base. The digital display electronic body procurvation measurer also comprises an electrode which is in the shape of a long grating and is arranged on the guide bar in the length direction of the guide bar, and a sliding block of a capacitive grating sensor, which can be slid along the guide bar. The body procurvation measurer adopts a capacitive grating digital displacement sensor to carry out the body procurvation measure of the human body. The utility model has the advantages of stable performance, high measuring precision and convenient use.

Description

The anteflexion meter of digital display electron

This utility model relates to a kind of trunk bending forwards meter, particularly, relates to the anteflexion meter of digital display electron of measuring human body pliability quality.

The trunk bending forwards of using at present is in respect of two kinds of forms, and a kind of is the trunk bending forwards meter that adopts the mechanical type measuring method.Meter reading trouble can not realize the computer automation measurement before this body was bent.Another kind is to adopt the body of linear adjustable potentiometer to bend preceding meter, measures though can realize electronization, and mechanism's complexity, certainty of measurement is relatively poor.

This utility model is to research and develop for overcoming the weak point of counting before above-mentioned body is bent, and its objective is provides a kind of digital display electron anteflexion meter, makes the trunk bending forwards meter have precision height, stable performance, and easy to use.

For achieving the above object, according to the anteflexion meter of a kind of digital display electron of the present utility model, comprise the measuring circuit of measuring the relative variation of electric capacity of holding grid with displacement, a pedestal, with the guide rod that is arranged on this pedestal, also have the length direction along this guide rod, this guide rod is provided with long gate-shaped electrode; And along this guide rod capacitor grid transducer slide block slidably.

And according to the anteflexion meter of digital display electron of the present utility model, this pedestal is provided with crossbeam, and this guide rod is arranged on this crossbeam.

Trunk bending forwards meter of the present utility model carries out the trunk bending forwards measurement because the grid digital displacement transducer is held in employing to human body, so have stable performance, certainty of measurement height and advantage easy to use.

Below, in conjunction with the accompanying drawings, trunk bending forwards meter of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the schematic plan of trunk bending forwards meter structure of the present utility model;

Fig. 2 is the partial sectional view of this trunk bending forwards meter along the a-a line of Fig. 1;

Fig. 3 is the structure chart of capacitor grid transducer slide block;

Fig. 4 a and Fig. 4 b are respectively the structure chart of long gate-shaped electrode and comb electrode.

At first, with reference to Fig. 1 and 2, the overall structure of this utility model trunk bending forwards meter is described.This trunk bending forwards meter comprises: pedestal 1; The crossbeam 2 that connects firmly with this pedestal 1; Be arranged at the guide rod on the crossbeam; Along the length direction setting of this guide rod 3 and the long gate-shaped electrode 4 that is fixed thereon; And can be along the capacitor grid transducer slide block 5 of guide rod 3 slips.

And a side of the shell 11 of this capacitor grid transducer slide block 5 has socket 13, as measuring circuit 12 and outside, for example device of the RS232 interface of microcomputer of its inside.Also be provided with on and off switch 14 on this shell 11, in order to measuring circuit 12 is carried out power supply on/off switch.In addition, an end of capacitor grid transducer slide block 5 is provided with push pedal 18, and fuses with slide block, is used to promote capacitor grid transducer slide block 5 and carries out the preceding measurement in the wrong of human body body.In addition, be provided with battery 15 in the shell 11 of this capacitor grid transducer slide block 5,, which is provided with display screen 17, in order to show measurement result in order to the measuring circuit power supply.

Fig. 3 is the structure chart of capacitor grid transducer slide block.The shell 11 of this capacitor grid transducer slide block 5 is a rectangle cover-shaped body, is placed on the top of slide block 16.The inside of shell 11 is pasted with the capacitor grid transducer of being made up of measuring circuit 12 and comb electrode 13, and protective layer 14 is coated on this comb electrode 13, to protect this comb electrode 13.This guide rod 3 runs through slide block 16 inside, so that this slide block 16 slides up and down along guide rod 3.And, the long gate-shaped electrode 4 that mounts on this guide rod 6, and it is mutually opposed with this comb electrode 13, when this slide block 16 when guide rod 3 slides up and down, different with long gate-shaped electrode 4 and these comb electrode 13 relative positions, its capacitance that holds grid also changes, and can measure corresponding trunk bending forwards numerical value from measuring its capacitance.

Below, with reference to Fig. 4 a and Fig. 4 b, the long gate-shaped electrode of capacitor grid transducer and the structure of comb electrode are described respectively.Long gate-shaped electrode 4 is an elongate in shape scale copper, except that two end portions, is provided with a plurality of broach along the both sides of rectangular direction, and corresponding one by one.Also have, still keep suitable scale copper part 4c between the broach 4a of both sides and the 4b, so that be electrically connected.In addition, two ends do not have the part of broach to be used as the electrode junction point.

Comb electrode 13 comprises that two bands that separate the opposite configuration of certain distance are comb electrode 13a and 13b.Be noted that two relative broach should staggered positions, promptly as shown in the figure, the broach of comb electrode 13a be positioned at the broach of comb electrode 13b at interval within, i.e. cross-over configuration.All the long gate-shaped electrode 4 with above-mentioned is the same with length at interval between each broach of this comb electrode 13.

Long gate-shaped electrode and comb electrode all are to use the book copper sheet, make by repeating photoetching.Coat thin high insulative dielectric material layer after the photoetching on the scale copper surface.During use, the comb electrode 13 and the long gate electrode 4 of cross-over configuration are overlapping, move along long gate electrode, and capacitance changes with interelectrode relative position, by the synchronous measurement circuit of routine techniques, just can measure the length before body is bent.

Promote slide block on guide rod when mobile when the tester is picked by means of push pedal, comb electrode moves along long gate electrode in the slide block, make capacitance take place to change accordingly with displacement, by synchronous measurement circuit, the display screen from the slide block just can be read the distance of picked passing.In addition, also can pass through RS232 interface and computer interconnection, realize automatic measurement.

Because adopting, body antexed meter of the present utility model holds grid digital displacement sensor Human body is carried out trunk bending forwards measures, thus have simple in structure, stable performance, The advantage that certainty of measurement is high and easy to use etc.

Claims

1, the anteflexion meter of a kind of digital display electron, comprise the measuring circuit of measuring the relative variation with displacement of electric capacity of holding grid, a pedestal is arranged at the guide rod on the described pedestal, it is characterized in that also having the length direction along described guide rod, described guide rod is provided with long gate-shaped electrode; And along described guide rod capacitor grid transducer slide block slidably.

2, the anteflexion meter of digital display electron according to claim 1 it is characterized in that described pedestal is provided with crossbeam, and described guide rod is arranged on the described crossbeam.

3, the anteflexion meter of digital display electron according to claim 1 is characterized in that described long gate-shaped electrode is a rectangular scale copper, is provided with the broach of a plurality of determining deviations along the both sides of rectangular direction.

4, the anteflexion meter of digital display electron according to claim 1 is characterized in that described capacitor grid transducer slide block has a shell, is equipped with the capacitor grid transducer of being made up of measuring circuit and comb electrode in the described shell.

5, the anteflexion meter of digital display electron according to claim 4 is characterized in that having the dielectric protective layer on the described comb electrode.

6, according to claim 4 or the anteflexion meter of 5 described digital display electrons, it is characterized in that described guide rod runs through described capacitor grid transducer slide block, and the comb electrode in the described capacitor grid transducer slide block is mutually opposed with described long gate-shaped electrode.

7, according to the anteflexion meter of each described digital display electron of claim 1 to 5, it is characterized in that the described shell of described this capacitor grid transducer slide block is provided with the socket of interface, on and off switch, push pedal and display screen.