CN202770390U

CN202770390U - Reciprocating goniometer

Info

Publication number: CN202770390U
Application number: CN 201220408523
Authority: CN
Inventors: 程冬冬; 冯娜; 刘臣才; 束永平
Original assignee: Donghua University
Current assignee: Donghua University
Priority date: 2012-08-16
Filing date: 2012-08-16
Publication date: 2013-03-06
Anticipated expiration: 2022-08-16

Abstract

The utility model provides a reciprocating goniometer, which is characterized in that: it includes a casing, and a circuit composed of a power supply, a switch, and a resistor with uniform distribution of resistance in series is arranged inside the casing; a smooth horizontal guide rod is connected with the casing, and the smooth horizontal There is a slider on the guide rod, and light springs are coaxially arranged on both sides of the slider; the slider is connected to the upper part of the resistor through the sliding arm, one end of the voltmeter is connected to the sliding arm, and the other end of the voltmeter is connected to the fixed wiring at the midpoint of the lower part of the resistor point. The device provided by the utility model overcomes the shortcomings of the prior art, and has a simple and compact structure, low cost, simple operation and easy maintenance.

Description

A kind of reciprocating type angular instrument

Technical field

The utility model relates to a kind of reciprocating type angular instrument, belongs to electronic technology field.

Background technology

The most complex structure of existing angular instrument is subjected to the impact of working environment larger, and with sensor, the parts such as signal amplifier, cost is high, and is difficult in maintenance.

The utility model content

The technical problems to be solved in the utility model provides the angular instrument that a kind of structure is simplified, cost is low, be easy to safeguard.

In order to solve the problems of the technologies described above, the technical solution of the utility model provides a kind of reciprocating type angular instrument, it is characterized in that: comprise shell, be located at enclosure by the circuit that power supply, switch, the equally distributed resistance of resistance are in series; Smooth horizontal guide is connected with shell, and smooth horizontal guide is provided with slide block, and the slide block both sides are the coaxial light spring that is provided with all; Slide block is connected with resistance top by travelling arm, and voltage table one end connects travelling arm, the link point of voltage table other end contact resistance bottom mid point.

A kind of reciprocating type angular instrument that the utility model provides is by transferring angular displacement signal to displacement signal and then utilization transfers electric signal to, and the voltage table reading that passes through can draw the size at pitch angle, inclined-plane to be measured.

Compared with prior art, a kind of reciprocating type angular instrument that provides of the utility model has following beneficial effect:

(1) simple and compact for structure, cost is low, is difficult for breaking down, and maintenance cost is low;

(2) simple to operate, only need press switch and can accurately measure by diagonal displacement;

The device that the utility model provides has overcome the deficiencies in the prior art, and is simple and compact for structure, and cost is low, simple to operate and be easy to safeguard.

Description of drawings

A kind of reciprocating type goniometer configuration schematic diagram that Fig. 1 provides for the utility model;

A kind of reciprocating type angular instrument physical parameter schematic diagram that Fig. 2 provides for the utility model;

Fig. 3 is mechanical analysis schematic diagram in the present embodiment;

Description of reference numerals

The 1-power supply; The 2-wire; The 3-switch; 4-link point; 5-resistance; The 6-travelling arm; The smooth horizontal guide of 7-; The 8-light spring; The 9-slide block; The 10-voltage table; The 11-shell.

Embodiment

For the utility model is become apparent, hereby with a preferred embodiment, and cooperate accompanying drawing to be described in detail below.

A kind of reciprocating type goniometer configuration schematic diagram that Fig. 1 provides for the utility model, described a kind of reciprocating type angular instrument comprises shell 11, the circuit that is in series by wire 2 by power supply 1, switch 3, resistance 5 is contained in shell 11 inside, the resistance of resistance 5 evenly distributes, resistance 5 upper and lower travelling arm 6 and the link points 4 of also being connected with respectively, link point 4 is positioned at resistance 5 bottom mid points, is connected with voltage table 10 between travelling arm 6 and link point 4.

Smooth horizontal guide 7 is connected with shell 11, on the smooth horizontal guide 7 slide block 9 is housed, and slide block 9 can reciprocatingly slide along smooth horizontal guide 7, and travelling arm 6 is fixed with slide block 9, and travelling arm 6 also can reciprocatingly slide along resistance 5.All be connected with the light spring 8 that is enclosed within smooth horizontal guide 7 in slide block 9 both sides, light spring 8 other ends are connected on the shell 11.When shell 11 was positioned at surface level, travelling arm 6 all was positioned at resistance 5 centre positions with link point 4.

Fig. 2 is a kind of reciprocating type angular instrument physical parameter schematic diagram, and the one side that shows among Fig. 2 is the front of reciprocating type angular instrument.When shell 11 was positioned at surface level, travelling arm 6 all was positioned at resistance 5 centre positions with link point 4.When needing the measured angular displacement, press switch 3, the people is placed on shell 11 on the plane to be measured in the face of the front of reciprocating type angular instrument, might as well establish the inclined-plane as shown in Figure 3, and mechanical model figure as shown in Figure 3 at this moment.Slide block 12 will keep balance on the inclined-plane, also want balance along bevel direction, namely

mgsinθ＝2kX。(1)

Wherein m is the quality of slide block 12, and θ is inclination angle of inclined plane, X be PQ along the distance between the smooth horizontal guide, what P, Q be respectively? g, k definition.

Because resistance 5 is connected in the circuit, and resistance 5 resistance evenly distribute, voltage table 10 record for voltage between PQ, therefore the reading size of voltage table 10 can be reacted the size of X.Specific as follows:

X/L＝U/E (2)

Wherein U is the voltage table registration, and E is electromotive force of source, and L is resistance length, and X is PQ length.Got by formula (1) (2):

sinθ＝2kUL/mgE

θ＝arcsin(2kUL/mgE)

Wherein: θ is high for just representing the right side, and θ is for high on the left of negative the representative.

Hence one can see that, and the reading of known U can draw the size of inclined-plane tiltangleθ, so can mark at the corresponding registration U of voltage table the size of θ, reaches the purpose of measuring the respective ramp tiltangleθ.The scope of the tiltangleθ of surveying is that range can be regulated by k and X are set.

Claims

1. A reciprocating goniometer, characterized in that: comprising a housing (11), a circuit formed in series by a power supply (1), a switch (3), and a resistance (5) with uniform distribution of resistance is located at the housing (11) Inside: the smooth horizontal guide rod (7) is connected with the casing (11), the smooth horizontal guide rod (7) is provided with a slider (9), and both sides of the slider (9) are coaxially provided with light springs (8) The slide block (9) is connected with the upper part of the resistance (5) through the sliding arm (6), one end of the voltmeter (10) is connected with the sliding arm (6), and the other end of the voltmeter (10) is connected with the middle point of the lower part of the resistance (5). Terminal point (4).