CN1236092A

CN1236092A - Space-time converter for angle and angle displacement sensor

Info

Publication number: CN1236092A
Application number: CN 98108572
Authority: CN
Inventors: 殷镇良
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-05-14
Filing date: 1998-05-14
Publication date: 1999-11-24

Abstract

The space-time converter includes input shaft, upper cover, turn plate, fixed arm, inertial disc, rotating shaft and lower cover. On the turn plate, there are sliding ring and optoelectronic sensor; the fixed arm is fixed between the upper and lower covers and is over the inertial disc; there is an other optoelectronic sensor on the fixed arm; the inertial disc has label; and the lower end of the rotating shaft is connected to one constant-rotation speed driving source. The present invention is superior in that the measurement of spatial quantity if converted into treatment of time quantity, and this results in simple structure, low cost and easy manufacture.

Description

The space-time converter that is used for angle and angular displacement sensor

The invention belongs to a kind of space-time converter that is used for angle and angular displacement sensor.

Angle and angular displacement sensor are important component parts in the sensing technology, and its application is very extensive.In the prior art, surely belong to photoelectric coded disk as the high-precision sensor in angle and the angular displacement sensor.Manufacture difficulty is big, physical dimension is big, volume is heavy and expensive problem but there is.Owing to be subjected to the restriction of the structure and the factor of manufacturing, make its resolution that can reach be about 0.1 in addition ", and in some high finishing, be badly in need of higher angle and the angle displacement transducer technology of precision.

Task of the present invention provides a kind of angle and angular displacement sensor of being used for, high precision, simple in structure and space-time converter that cost is low.

Task of the present invention is achieved by the following scheme: the space-time converter that is used for angle and angular displacement sensor comprises input shaft (1), loam cake (3), rotating disk (5), fixed arm (18), inertia disk (6), rotating shaft (8) and lower cover (7); Input shaft (1) is installed on the loam cake (3) by bearing (24), and rotating shaft (8) is installed on the lower cover (7) by bearing (14), and input shaft (1) and rotating shaft (8) are positioned on the same rotation; Rotating disk (5) is installed in the lower end of input shaft (1), which is provided with slip ring (4) and photoelectric sensor (16), and the signal wire of photoelectric sensor (16) is connected with slip ring (4), and slip ring (4) contacts with brush (21) on being located at loam cake (3); Fixed arm (18) clamping is installed between loam cake (3) and the lower cover (7), and is positioned at the top of inertia disk (6), and fixed arm (18) is provided with photoelectric sensor (17); Inertia disk (6) is installed in the upper end of rotating shaft (8), is provided with mark (15) above it; The lower end of rotating shaft (8) and a permanent rotating speed power source link.

Advantage of the present invention is the processing that the measurement of amount of space is converted into time quantum, thereby realizes the high-acruracy survey of angle and angular displacement; Of the present invention in addition simple in structure, cost is low, and is easy to manufacture.

Fig. 1 structure principle chart figure;

Fig. 2 structure principle chart vertical view.

Embodiment:

As shown in Figure 1, 2, the space-time converter that is used for angle and angular displacement sensor comprises input shaft (1), loam cake (3), rotating disk (5), fixed arm (18), inertia disk (6), rotating shaft (8) and lower cover (7).Input shaft (1) is installed on the loam cake (3) by bearing (24), and the upper end of input shaft (1) is provided with locating ring (2), guarantees the end play of rotating disk (5) and inertia disk (6) with this, and rotating shaft (8) is installed on the lower cover (7) by bearing (14).In processing with install and guarantee that input shaft (1) and rotating shaft (8) are positioned on the same rotation.Loam cake (3) is provided with insulating mat (23), and electrode (22) is set in it, and the inner of electrode (22) is connected with brush (21), and the outer end of electrode (22) is connected with signal wire (19).Rotating disk (5) is installed in the lower end of input shaft (1), rotating disk (5) adopts the organic glass manufacturing, which is provided with slip ring (4) and photoelectric sensor (16), the signal wire of photoelectric sensor (16) is connected with slip ring (4), and slip ring (4) contacts with brush (21) on being located at loam cake (3).Fixed arm (18) adopts insulating material to make, clamping is installed between loam cake (3) and the lower cover (7), and be positioned at the top of inertia disk (6), fixed arm (18) is provided with photoelectric sensor (17), and signal wire (19) is drawn by the insulating mat (20) that is located on the loam cake (3).Inertia disk (6) is installed in the upper end of rotating shaft (8), is provided with mark (15) above it.Mark (15) on the inertia disk (6) is bar shaped, and radially fixing on inertia disk (6).The lower end of rotating shaft (8) and a permanent rotating speed power source link.Permanent rotating speed power source comprises constant speed motor (10) and speed reduction unit (11).Constant speed motor (10) is by cable (9) power supply, and constant speed motor (10) drives speed reduction unit (11) work, and the output shaft (12) of speed reduction unit (11) connects with rotating shaft (8) by shaft coupling (13).

When work, constant speed motor (10) drives speed reduction unit (11), does uniform rotation, bar-shaped marks (15) uniform rotation thereupon on the inertia disk (6) thereby drive inertia disk (6).When mark (15) through photoelectric sensor when (17), will obtain the uniform time pulse S1 of row, S2, S3 ... Sm; In like manner at mark (15) through photoelectric sensor when (16), also will obtain the uniform time pulse M1 of row, M2, M3 ... Mn.This moment as (1) rotational angle theta p of given input shaft, the motionless photoelectric sensor (17) of photoelectric sensor (16) relative fixed that organic glass rotating disk (5) will drive on it turns over same Space Angle θ p, then will have phase differential θ t between two uniform time sequential pulse Sm of row and the Mn.When measuring, by signal wire (19) two uniform time sequential pulse signal Sm of row and Mn are drawn, and utilize computing machine that its phase differential θ t is carried out split-second precision coding and calculate, can obtain the value of rotational angle theta p, thereby realize Space Angle or angular displacement p conversion to time phase differential θ t.

Claims

1. a space-time converter that is used for angle and angular displacement sensor is characterized in that it comprises input shaft (1), loam cake (3), rotating disk (5), fixed arm (18), inertia disk (6), rotating shaft (8) and lower cover (7); Input shaft (1) is installed on the loam cake (3) by bearing (24), and rotating shaft (8) is installed on the lower cover (7) by bearing (14), and input shaft (1) and rotating shaft (8) are positioned on the same rotation; Rotating disk (5) is installed in the lower end of input shaft (1), which is provided with slip ring (4) and photoelectric sensor (16), and the signal wire of photoelectric sensor (16) is connected with slip ring (4), and slip ring (4) contacts with brush (21) on being located at loam cake (3); Fixed arm (18) clamping is installed between loam cake (3) and the lower cover (7), and is positioned at the top of inertia disk (6), and fixed arm (18) is provided with photoelectric sensor (17); Inertia disk (6) is installed in the upper end of rotating shaft (8), is provided with mark (15) above it; The lower end of rotating shaft (8) and a permanent rotating speed power source link.