Device for measurement of static error of rotary transformer

FIELD: physics, measurement.

SUBSTANCE: invention is related to the field of measurement and may be used in metrological research of sine-cosine rotary transformers. In device for measurement of static error, on angle setting unit there is rotary transformer fixed, signal windings of which are connected via switchboard to analog inlets of voltage-code transducer. Its digital outlet is connected via register to address bus of ROM, information bus of which via buffer cascade is connected to inputs of decoder, to outlet of which digital indicator if information display is connected.

EFFECT: expansion of functional resources by provision of error measurement at any value of angle and visualisation of angle value displaying.

1 dwg

 

The invention relates to the field of measurement and can be used for metrological studies sine-cosine rotary transformers.

It is known device for controlling errors of rotary transformers containing controlled rotary transformer receiver, auxiliary rotary transformer sensor, the mechanism of synchronous rotation, the relay switch out phase-sensitive rectifier, two condensers and a registration device [1].

The disadvantage of this device is its low accuracy of the measurement.

It is also known a device for measuring the static error of the rotating transformer [2], containing the registration unit and the switch, the inverter phase-code, registers, adders, memory block of the specified angle, the synchronization unit, upsadaisy node.

The disadvantage of this device is that the measurement error is on the same angle value.

Achievable technical result of the present invention is the extension of functionality by providing measurement error for any value of the angle and the clarity of the display angle.

In a device for measuring the static error of the rotating transformer containing upsadaisy site, which shaft is kinematically related the rotary transformer and is the kinematic input device, switch, case, according to the invention introduced a storage device, a buffer stage, decoder, digital indicator, information display, inverter voltage code analog input of which is connected through a switch to the signal windings of the rotating transformer, the digital outputs are connected through the register to the address bus a persistent storage device, the information bus through the buffer which the cascade is connected to the input of the decoder, the outputs of which are connected to a digital indicator to display the information.

Significant differences between the proposed device is the introduction of Converter voltage code, a persistent storage device, which controls a digital display of the information display, which provides a visualization of the angle and the measurement error for any value of the angle.

The drawing shows a diagram of the device.

The proposed device contains upsadaisy node 1, the rotary transformer 2, the switch 3, the inverter 4 voltage code case 5, a persistent storage device 6, the buffer cascade 7, a decoder 8, digital display 9 display information.

On plothadyam node 1 is fixed rotary transformer 2, a signal winding which is connected through the switch 3 to Ana who ohavim the device inputs 4 voltage code. Its digital output is connected through register 5 address bus a persistent storage device 6, the information bus through which the buffer cascade 7 is connected to the inputs of the decoder 8, the output of which is connected digital display 9 display information.

Device for measuring the static error of the rotating transformer works as follows.

Set on plothadyam node 1 investigated rotary transformer 2 forms in the signal windings of the signals, the amplitude of which at rotation varies according to the law of sine and cosine. These signals are sent to the switch 3, where they are scaled and combined to the common wire of the windings. From the output of the switch 3, the signals are sent to the sine and cosine analog inputs of the Converter 4 voltage code where it is converted to parallel digital code, which is stored in the register 5. From the output of the register 5 digital code is supplied to the address bus of the permanent storage device 6, in which is recorded a program transformation in binary-decimal code. This code through a buffer cascade 7 is supplied to the decoder 8, which controls the digital display 9 display information. Information display is given in the form of a number corresponding to a preset angle in degrees, the angular minutes and seconds. Error rotating cord is of rimatara is determined by comparing the values of the specified angle pasazausko node 1 and reading the digital display 9 display information.

The proposed invention is used for determining the static error of the rotary transformers of the horizon.

Sources of information

1. AS the USSR №451119, CL. NM 1/10, 1972

2. RF patent №2007026, IPC NM 1/10, 1991 (prototype).

Device for measuring static error of a rotating transformer that contains upsadaisy site, which shaft is kinematically connected with a rotating transformer, and is the kinematic input device, switch, case, characterized in that it introduced a persistent storage device, a buffer stage, decoder, digital indicator, information display, inverter voltage code analog input of which is connected through a switch to the signal windings of the rotating transformer, the digital outputs are connected through the register to the address bus a persistent storage device, the information bus through the buffer which the cascade is connected to the input of the decoder, the outputs of which are connected to a digital indicator to display the information.



 

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