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Direct-current potentiometer beneficial to management of instrument production enterprise

A technology of DC potentiometer and enterprise management, applied in the direction of AC/DC potential difference measurement device, etc., can solve the problems of waste, easy confusion, and long natural aging time of wire wound resistance.

Inactive Publication Date: 2013-03-13
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to artificial aging, wire-wound resistors need natural aging. The higher the accuracy of the DC potentiometer, the longer the natural aging time of the wire-wound resistors used; since the wire-wound resistors with the same shape and the same resistance value are placed in the same warehouse, it is easy to confuse
There are often DC potentiometers with different precision in production on the production line. Wirewound resistors with similar resistance and shape may be used in different types of DC potentiometers. If wirewound resistors with long natural aging time are used in low-precision DC potentiometers The difference meter causes waste, and the wirewound resistance with short natural aging time is used in the high-precision DC potentiometer to produce defective products that are difficult to find. Without a switch instrument, it cannot be produced, which brings a lot of inconvenience to the management of instrument manufacturers.

Method used

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  • Direct-current potentiometer beneficial to management of instrument production enterprise
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  • Direct-current potentiometer beneficial to management of instrument production enterprise

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Embodiment Construction

[0015] exist Figure 7 In the middle, there are 10 100Ω resistors connected in series on the V half ring of the measuring disc, a total of 1000Ω, and the 250Ω resistor R 4The resistance value of 200Ω becomes 200Ω after being connected in parallel. The brushes on the upper and lower half rings of the measuring plate IV are connected in parallel with the two 100Ω resistors on the measuring plate IV, so that the resistance at both ends of the two 100Ω resistors connected in parallel is 100Ω. Therefore, due to the existence of the measuring disc V, the resistance at both ends of the 11 series connected 100Ω resistors on the measuring disc IV is 1000Ω. The resistance at both ends of the 100Ω resistor is 1000Ω. Due to the existence of measuring disk V, measuring disk IV, and measuring disk III, the resistance at both ends of the 11 series-connected 100Ω resistors on measuring disk II is 1000Ω. Measuring disk V, measuring disk IV, and The existence of measuring plate III and measuri...

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Abstract

The invention discloses a direct-current potentiometer beneficial to the management of an instrument production enterprise. Five measuring disks are provided with step switches with the same resistor and structure, and two working current regulating switches are of the similar structures, so that the types of resistors used by the direct-current potentiometer are few, the step switches are single in structure and convenience is brought for instrument production enterprises on the aspects such as material purchase, production arrangement, warehouse management and the like.

Description

technical field [0001] The invention relates to an instrument for measuring DC voltage. Background technique [0002] At present, in terms of voltage measurement, digital voltmeters are used for direct measurement in places with low precision, and DC potentiometers are used in places with high precision. DC potentiometers are divided into high-potential DC potentiometers and low-potential DC potentiometers according to the measured voltage. According to the circuit principle, it is divided into bridge type, voltage division type, series substitution type, voltage superposition type, current superposition type, etc. The accuracy of the DC potentiometer has 6 levels from 0.1 to 0.002. The DC potentiometer is mainly composed of Various working current adjustment switches, temperature compensation switches, measurement step switches and various resistance wire wound resistors are composed. Due to the wide variety of DC potentiometers, instrument manufacturers have to stock a lar...

Claims

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Application Information

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IPC IPC(8): G01R17/20
Inventor 骆君
Owner ZHEJIANG GONGSHANG UNIVERSITY
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