CN217059008U

CN217059008U - Automatic wiring adjusting circuit for trimming four corners of weighing sensor

Info

Publication number: CN217059008U
Application number: CN202220816377.4U
Authority: CN
Inventors: 伍德常; 赵祥林
Original assignee: Guangdong South China Sea Electronic Measuring Technology Co ltd
Current assignee: Guangdong South China Sea Electronic Measuring Technology Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-07-26
Anticipated expiration: 2032-04-11

Abstract

The utility model provides an automatic wiring adjustment circuit for four corners of a weighing sensor, which comprises an electric bridge ratio meter, a relay K1 and a relay K2, wherein the DE + end of the electric bridge ratio meter is communicated with the E + pin of the weighing sensor; the S + pin and the E-pin of the weighing sensor are both connected with a relay K1, and the relay K1 is also connected with a relay K2 and the DS + end of the bridge ratio meter; the S-pin of the weighing sensor is connected with a relay K2, and the relay K2 is connected with the DS-end and the DE-end of the bridge ratio meter; the bridge ratio also drives relay K1 and relay K2 via signal DO1 and signal DO2, respectively. The utility model realizes a blind connection mode, does not need to wire according to a signal line sequence, and improves the efficiency; the utility model is simple in operation need not look at, realizes simpler when using the automatic wiring of machine.

Description

Automatic wiring adjusting circuit for trimming four corners of weighing sensor

Technical Field

The utility model belongs to the technical field of the weighing sensor technique and specifically relates to an automatic wiring adjustment circuit in four corners is repaiied to weighing sensor.

Background

After the weighing sensor is processed, the weighing sensor needs to be checked and debugged, and the four-corner error correction is carried out on a common weighing sensor, so that the produced weighing sensor meets the production requirements.

Whether the color of the wiring needs to be judged correctly by manpower during mass production is difficult to realize automatic wiring, and one wiring is needed manually, so that the efficiency is difficult to improve and the requirement of mass production cannot be met.

Disclosure of Invention

Not enough to prior art, the utility model provides a weighing sensor repaiies automatic wiring adjustment circuit in four corners.

The technical scheme of the utility model is that: an automatic wiring adjusting circuit for trimming corners of a weighing sensor comprises a bridge ratio meter, a relay K1 and a relay K2, wherein the DE + end of the bridge ratio meter is communicated with an E + pin of the weighing sensor;

the S + pin and the E-pin of the weighing sensor are both connected with a relay K1, and the relay K1 is also connected with a relay K2 and a DS + end of a bridge ratio meter;

the S-pin of the weighing sensor is connected with a relay K2, and the relay K2 is connected with the DS-end and the DE-end of the bridge ratio meter;

the bridge ratio also drives relay K1 and relay K2 via signals DO1 and DO2, respectively.

Preferably, the relay K1 and the relay K2 are respectively externally connected with a 5V power supply.

Preferably, diodes D1 and D2 are further connected to the relay K1 and the relay K2, respectively.

The utility model has the advantages that:

1. the utility model realizes the blind connection mode, and the wiring is not needed according to the signal line sequence, thereby improving the efficiency;

2. the utility model is simple in operation does not need to see, realizes more simply when using the automatic wiring of machine.

Drawings

Fig. 1 is a circuit diagram of the present invention.

FIG. 2 is a circuit diagram of the weighing sensor of the present invention;

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

as shown in fig. 1, the utility model provides an automatic wiring adjusting circuit for trimming four corners of a weighing sensor, which comprises an electric bridge ratio meter, a relay K1 and a relay K2, wherein the DE + end of the electric bridge ratio meter is communicated with the E + pin of the weighing sensor;

the S + pin and the E-pin of the weighing sensor are both connected with a relay K1, and the relay K1 is also connected with a relay K2 and the DS + end of the bridge ratio meter;

Preferably, the relay K1 and the relay K2 are further connected with diodes D1 and D2, respectively.

As shown in FIG. 2, Rx and Ry are strain resistors, when a heavy object is added on the weighing sensor, the resistance values of Rx and Ry are changed, and the potential difference between output signals S + and S-is also changed. When the error of four corners of the weighing sensor is corrected, the same rated weight is added at each corner of four corners of a scale pan of the weighing sensor respectively to see that the relative difference is less than +/-1 word without seeing the actual accurate value, so that the weighing sensor can be connected into four wires to a bridge ratio meter.

The foregoing embodiments and description are illustrative of the principles and preferred embodiments of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the claims.

Claims

1. The utility model provides an automatic wiring adjustment circuit of four corners is repaiied to weighing sensor which characterized in that: the device comprises a bridge ratio instrument, a relay K1 and a relay K2, wherein the DE + end of the bridge ratio instrument is communicated with an E + pin of a weighing sensor;

the S + pin and the E-pin of the weighing sensor are both connected with a relay K1, and the relay K1 is also connected with a relay K1 and a DS + end of a bridge ratio meter;

the bridge ratio drives relay K1 and relay K2 via signal DO1 and signal DO2, respectively.

2. The automatic wiring adjustment circuit for trimming the corners of a load cell according to claim 1, wherein: the relay K1 and the relay K2 are externally connected with a 5V power supply respectively.

3. The automatic wiring adjustment circuit for trimming the corners of a load cell according to claim 1, wherein: the relay K1 and the relay K2 are also connected with a diode D1 and a diode D2 respectively.