Home > Power Circuits > Multifunctional conductivity tester circuit

Multifunctional conductivity tester circuit

Source: InternetPublisher:司马缸砸光 Keywords: Power supply protection Updated: 2021/07/03

Multifunctional conductivity tester circuit

 

 

The circuit of the multifunctional conductivity tester is composed of a detection electrode, a resistor divider, a buffer circuit and a two-color diode, as shown in the figure. The detection electrode can sense the resistance of the object being measured, and control the two-color light-emitting diode to emit light according to the resistance of the object being measured. When the detection electrode senses that the resistance of the object being measured is greater than 300kΩ and less than 1000kΩ, the green indicator light turns on; when it senses that the resistance of the object being measured is less than 300kΩ, the red indicator light turns on, making the two colors synthesize into an orange-red light; when it senses that the resistance of the object being measured is greater than 1000kΩ , the two-color indicator lights VL3 and V⒕ do not light up. Adjusting the potentiometer RP can change the sensing range of the detection electrode.

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号