RU133282U1 - DEVICE FOR DETERMINING POSITION OF A TROLLEY ON A ROCKET ROAD - Google Patents

Abstract

A device for determining the position of the trolley on the rocket path, consisting of a light source and a light receiver, characterized in that the device for determining the position of the trolley on the rocket path is further provided with flat reflectors placed outside the trolley, the vertical size of which exceeds the amount of vertical vibrations of the light source placed on trolley, a number of evenly spaced reflective strips are applied to the reflector, the number of which is made with the possibility of determining the place traveled a trolley, and the light source is made with sufficient light power to illuminate the reflective plate.

Description

The utility model relates to the field of instrumentation and can be used in the engineering and instrumentation industries to measure linear displacements.

In the practice of testing products on a rocket track, it becomes necessary to determine the position of the cart on the track. So, for example, when testing a product on a rocket track, it is necessary to fix a certain position of the truck on the track during the movement of the trolley, at which the operation of certain test units located on the trolley occurs.

In the process of testing, the measuring equipment is located on the trolley, and a device for determining the position connected to this equipment should also be located there. When moving along a rocket track, the trolley is exposed to vibrations, and its vertical movement can reach significant values.

Known optical position sensor type VIKO-D ZAO "Meander" (website of the manufacturer http://www.meandr.ru/products) containing a light source and a light receiver. To determine the position, a narrow light beam must enter the reflective surface, which is difficult with a significant amount of vibration of the trolley (it may go beyond the dimensions of the reflector). When conducting an experiment in outdoor conditions, the presence of external illumination can lead to a false signal. It should also be noted that the range of the VIKO position sensor does not exceed 1 meter, which is sometimes insufficient from the point of view of preserving the reflector during testing. Thus, position sensors like VIKO have insufficient accuracy when conducting tests on a rocket track.

The objective of the utility model is to create a device for determining the position of the cart on the rocket track with such a design that will improve the accuracy of determining the position of the cart.

The stated technical problem is solved by a device equipped with flat reflectors placed outside the cart, the vertical size of which exceeds the amount of vertical vibrations of the light source placed on the cart, and a series of uniformly arranged reflective strips are applied to the reflector, the number of which is made with the possibility of determining the place traveled by the cart.

The inventive device for determining the position of the cart on the rocket path is represented by figures 1, 2, 3.

Figure 1 represents the principle of operation of the inventive device for determining the position placed on the trolley 1 mounted on the rails of the rocket track 6.

A device for determining the position of the cart on the rocket track contains a light source 2, a light receiver 3, light reflectors 4 flat reflectors with uniformly arranged reflective strips 5 (deposited on them) (FIG. 2).

Figure 3 is a sample recording of the pulses of the device for determining the position, which shows two recorded signal from two reflective plates with a different number of reflective strips located on two control sections of the rocket track.

The inventive device for determining the position of the cart on the rocket path works as follows.

At the beginning of the experiment, in the control sections of the track on which it is necessary to fix the position of the trolley, flat reflectors 4 (No. 1 and No. 2) are installed at a distance from the track, ensuring their safety during the passage of the trolley at high speed. The distance can be 1.5-2 m. Before the start of the experiment, the light source 2 is turned on, having a sufficiently large light power to be able to illuminate the reflective plate over its entire plane. This allows you to avoid the image of the plate from the field of view of the receiver 3 during the vertical movement of the trolley due to its vibration together with the device for determining the position, rigidly attached to the trolley.

The vertical size of the flat reflectors is chosen so that it exceeds the value of the vertical vibrations of the light source, i.e. reflectors in this case are always illuminated. The horizontal dimensions of the reflecting plates are determined by the length of the control section, which requires accurate determination of the position of the cart, and the change in the interval of application of reflective strips on the reflecting plate allows you to set the necessary accuracy in determining the position of the cart relative to the beginning of the control section. When the trolley passes by the reflecting plate, the output signal of the device for determining the position is transmitted to the measuring equipment for registration. The output signal of the device for determining the position of the cart on the rocket path due to the presence of reflective strips on the plate represents a series of evenly spaced signals (Fig. 3), the number of which corresponds to the number of reflective strips on the reflective plate installed in the desired path location. The number of registered signals at the time of operation of the test units located on the trolley, with a known interval for applying reflective strips, allows you to accurately determine the position of the trolley relative to the beginning of the control section of the motion path.

It should be noted that by registering the pulses of the device for determining the position of the cart on the rocket track in time due to the presence on the reflective plate of a number of uniformly arranged reflective strips, it is possible to simultaneously determine the speed of the cart along the rocket track.

Claims (1)

A device for determining the position of the trolley on the rocket path, consisting of a light source and a light receiver, characterized in that the device for determining the position of the trolley on the rocket path is further provided with flat reflectors placed outside the trolley, the vertical size of which exceeds the amount of vertical vibrations of the light source placed on trolley, a number of evenly spaced reflective strips are applied to the reflector, the number of which is made with the possibility of determining the place traveled a trolley, and the light source is made with sufficient light power to illuminate the reflective plate.

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