The internal components of the stylus, the risk of damage to the stylus, and the
What transpires when a stylus used to measure firewire has a faulty resistor? Due to the possibility of persons operating with electricity incorrectly if the internal resistor resistance breaks or diminishes, there is a rather substantial risk of electrocution.
The stylus's internal structure
The conventional style of pen has a fairly straightforward structure made up of a high resistance resistor, neon bubble, a spring, and a cap. Neon bubbles do not generate light when exposed to low voltage; they typically require more than 100 volts to light up, making it very difficult to harm if not dropped.
High resistance resistor resistance value varies, theoretically greater than 500k ohms can meet the demand, but we hope that the greater the resistance value the better, of course, can not be infinity, then open circuit, in the measurement of the charged body does not glow, easy for us to produce a misjudgement, so the electric pen is the need for frequent inspection and maintenance.
So what happens when the resistance inside the electric pen is lower than the set value? Obviously, the electric pen in contact with a charged body when the human body is easily electrocuted, I believe that everyone, especially electricians have lessons in this regard.
The danger of damage to the stylus
Resistance of infinity generated by the misjudgment, we may think that the electrical appliances are not electric, in the maintenance operation of the danger of electric shock, causing great harm to the person.
Resistance of less than 500k ohm stylus in the measurement of electrically charged body, will make a person produce a numb feeling, if the resistance value is even lower, the equivalent is the hand is touching the firewire, the consequences are very serious.
Summarize
Electrometer pen in the purchase, you can bring a multimeter to check the resistance value of the internal resistance, generally above the MΩ level, indicating that the quality is excellent, can be used for a long time.
