Device for contactless measurement of the profile object

 

Device for contactless measurement of profile objects includes a housing and installed the block longitudinal scan, the block transverse scan, the associated photo sensor and the optical system. Block longitudinal scanning is made in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a relay mounted on the end of the swinging rod longitudinal scanning unit, and a swinging rod connected with the armature of the relay, the photosensor is in the form of two photodiodes located at the end of the swinging rod block transverse scanning, and optical system is located at the end of the swinging rod block longitudinal scan. Also there is a microswitch and a processing unit, consisting of serially connected integrator, key, series-connected n-threshold devices and indicator, as well as referencing the constant signals with n outputs, and the output of the key is connected with the first inputs of the n-threshold devices, the second inputs of which are connected to n outputs of the generator is constant signals. The technical result - raising awareness by identifying profile nonaxisymmetric object. 3 Il.

It is known device that includes a housing that has a longitudinal scanning unit in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a swinging rod installed on the anchor of the relay optical system and the photo-sensor in the form of two photodiodes placed at the end of the rod (USSR Author's certificate No. 1275206, CL G 01 21/20, publ. 07.12.1986,)

A disadvantage of this device is the low information content, due to the inability to determine profiles nonaxisymmetric object when its position.

An object of the invention is to increase the information content by identifying profile nonaxisymmetric object.

The solution of the technical problem is achieved in that in a device that includes a housing that has a longitudinal scanning unit in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a swinging rod installed on the anchor of the relay optical system and the photo-sensor in the form of two photodiodes placed at the end of the rod, additionally introduced microswitch and a processing unit consisting of series-connected other signals with n outputs, the key is connected with the first inputs of the n-threshold devices, the second inputs of which are connected to n outputs of the generator is constant signals.

Comparative analysis of the prototype shows that the proposed device has a significant distinguishing features are new schema element: microswitch, the processing unit and new connections in the circuit device, which allows to make a conclusion about the presence of this technical solution patentability criterion of "novelty."

The comparison of the proposed solutions with other technical solutions shows that the elements included in the structure of the processing unit, and the microswitch is widely known from the prior art, but only their introduction in the proposed device for contactless measurement of the profile of the object leads to the emergence of new properties, to increase the information content by measuring profiles nonaxisymmetric object.

In Fig.1 shows a device for contactless measurement of the profile of the object; Fig.2 is a block transverse scan of Fig.3 - block processing.

The device includes a housing 1, which has a unit longitudinal scan in the form of a swinging rod 2 with the actuator 3 and the sensor is practical system 7 and the photo-sensor 8 in the form of two photodiodes, placed on the end of rod 5, the controlled object 9, the micro-switch 10 and unit 11 of the information processing consisting of serially connected integrator 12, the key 13, the series-connected n-threshold device 14 and the indicator 15 and knob 16 constant signals with n outputs, and the output of the key 13 is connected with the first inputs of the n-threshold device 12, the second inputs of which are connected to n outputs of the knobs 16 constant signals.

The device operates as follows.

When enabled, the actuator 3 bar 2 starts to make swinging movement about an axis fixed on the sensor 4 of the angle signal which determines the position of the block transverse scan on the longitudinal axis of the controlled object 9. Relay 6 operates in the oscillatory mode, moving the photodiodes of the sensor 8 in the direction perpendicular to the longitudinal axis of the object 9, with a frequency on the order and higher-frequency longitudinal scan. When this error caused by the deviation of the trajectory of the swinging ends of the rods 2 and 5 from straightforward, small due to the large ratio of the length of the rod to the magnitude of movement. At the output of the photosensor 8 is a signal generated designed aphthosa, which is fed to the integrator 12. When a series of measurements from the microswitch actuates the key 13, and a signal proportional to the profile of the object is supplied to the n-threshold device 14 and the actuation of one of the n-threshold devices is supplied to one of the n inputs of the indicator corresponding to a particular profile nonaxisymmetric object. Upon further rotation of the object about its own axis will define a different profile of the object.

Thus, this device allows you to define profiles of nonaxisymmetric of the object at a different position relative to its axis of rotation.

Sources of information:

USSR author's certificate No. 1275206, CL G 01 B 21/20, publ. 07.12.1986, (prototype).

Claims

Device for contactless measurement of profile objects, comprising a housing and installed the block longitudinal scan, the block transverse scan, the associated photo sensor and the optical system, and block longitudinal scanning is made in the form of a swinging arm actuator and the angle sensor, the unit transverse scan in the form of a relay mounted on the end of the swinging rod block longitudinal scan, Iwasa rod block transverse scan and the optical system is located at the end of the swinging rod block longitudinal scanning, characterized in that it has a microswitch and a processing unit, consisting of serially connected integrator, key, series-connected n-threshold devices and indicator, as well as referencing the constant signals with n outputs, and the output of the key is connected with the first inputs of the n-threshold devices, the second inputs of which are connected to n outputs of the generator is constant signals.

 

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