SU76830A2 - Device for transmitting the readings of an automatic potentiometer - Google Patents

Description

The present invention relates to the improvement of a device for transmitting the readings of an automatic potentiometer according to the author. St. No. 75147.

FIG. 1 shows the proposed scheme for receiving pulses with linear relays, a finder and potentiometric resistances; in fig. 2 is a diagram of a measuring device 1 hectare receiving station.

A distinctive feature of the device according to the first circuit, which enables switching on the potentiometer / resistance, is the use of linear relays at the receiving station: the electromagnetic relay 2, which sets in motion the electromagnetic / njaronoro seeker synchronously with the remote controller. pa, and polarized relay. 3, which includes in the oprechteleine order 5 {2 - which by their contacts (2 “-). include appropriate potentiometer resistances /.

A distinctive feature of the mouth. The properties of the second circuit is the use of a galvanometer 6 with a battery 7. The galvanometer is included in

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electric current circuit by contacts of self-blocking relays 5 through - respectively matched res. potentiometer.

The operation of the circuits is as follows.

Normally, part of the relay 5 is under current and is blocked by its contacts 2a-a, and in galvanometer 6, with POMA1I, and correspondingly for the smart contacts, the shunting resistances 8 are turned on.

The signal pulses are perceived, with two linear relays 2 and 3. Relay 2 (neutral electromagnetic) is triggered from each pulse, and regardless of its polarity, contact 2a pulses the I / 2 circuit to the searcher electromagnet 4, making its dependent motion.

Polished relay 3 responds to pulse quality. With a positive impulse, it translates its contact behind to the right, with a negative impulse - to the left.

When the finder brushes are standing on the third finder lamella 9, the fourth positive im499 enters.

pulse signal. Relay 3 translates the contact contact over the plprapo to form a chain 3 - 6 relay 2 °. But the relay 2 ° n before this was under the current flowing through the circuit 5 - 6 through the block-contact contact.

Chain 3-6 only confirms the need for excitation in this signal. This state of the relay is 2 °.

On the fifth lamella, when receiving a sixth negative impulse, the relay transfers its contact to the left. The winding of the relay 2 turns out to be connected at both ends to the minus of the battery and does not work. On the seventh lamella, my eighth positive impulse is caused by er. the relay 3 is connected, which translates its contact to the right and via the circuit 3 - W confirms that relay 2 is on. The following relays 2, 2, 2 do not operate in the same way as relay 2,

On the 15th lamella, when the 16th negative impulse is received, relay 3 transfers its contact to the left. For the price. pi: point 4 - contact Over in the left position-15-lamella at the top end of the winding of relay 2 is fed minus battery 24. Relay 2. previously under current, releases and releases its contact, and disconnects its resistance from shunt 8 from the circuit measuring device 5.

On the 17th lamella of the 18th positive impulse, relay 3 is activated and translates its contact behind to the right. According to the circuit: plus battery 24 at point 3 - co-tact Down in the right position - 17-lamella - relay 2 winding - minus battery at point 20, relay 2 operates with its contact 2a block. 19-20, and contact switches its own resistance 8 to the circuit of the measuring device 6.

On the 19th lamella, when receiving the 20th positive impulse, for the same reason, relay 2 operates and connects its resistance to shunt 8 to the measuring device circuit 6.

From the last — 25th impulse — brush-searched, one complete turn-over, returning to the zero lamella, and at the same time the cycle of their movement is indicated.

At the end of the signal, the relays 2, 2, 2 and 11 22 remain energized and their contacts include the corresponding resistances on the potentiometer and the device shunts.

Thus, in the receivers, the chains at the beginning of the cycle are preserved. Comm. relay 5, triggered in the previous cycle. Only in the process of receiving signals, this combination changes. Such a construction of the circuits ensures a calm position of the arrow and a smooth transition to a new position when the voltage changes.

Subject invention

Claims (2)

1. A device for transmitting the readings of an automatic potentiometer according to AB. St. L 75147, characterized in that two relays 2 and 3 are installed on the receiving circuit of a potentiometer circuit to a line of pulses in different directions, one of which, relay 2, is designed to operate the step finder 4 synchronously with the potentiometer finder, and the second -polarized relay 5- for switching on depending on the direction of the impulses of individual ca.blokpruyushchpkhs relay from among the alternately connected by the searcher 4 so that the total number and location of simultaneously triggered relays The included potentiometer contacts at the transmitting station. 2. In the device according to claim. 1, applying at the receiving station a pointing device. an electric current supplied to the circuit by contacts of a self-blocking relay through appropriately selected resistances. 7 V, FIG. one 5 7 9 And 13 15 J7 13 2f 23 2. 7ГЛЛТ1ГГ7П7ГТ7Г L W riri GMII 2 4 2 fS if  r IZ / 4; i; ; 2 22 2t L J  I "I c; I C {I C { iliii | i | i 8 Sf § f af FIG. 2