Alternative ways to use a stylus
In addition to determining whether an object is electrically charged, the stylus has the following uses:
(1) It can be used for low-voltage phase verification, measuring whether any conductors in the line are in phase or out of phase with each other. Specific method is: stand on an object insulated from the earth, hands each holding a stylus, and then in the two wires to be tested on the test, if the two stylus luminous is very bright, the two wires for the phase; Conversely, it is the same phase, it is the use of neon bubbles in the stylus the difference in voltage between the poles of the neon bubble and its luminous strength is directly proportional to the principle of discrimination.
(2) can be used to distinguish between alternating current and direct current. In the test with the stylus, if the stylus neon bubble in the two poles are luminous, is the alternating current; if the two poles in only one pole luminous, is the direct current.
(3) can determine the positive and negative poles of DC. Will be connected to the stylus in the DC circuit test, neon bubble light that pole is the negative pole, does not light a pole is positive.
(4) can be used to determine whether the DC ground. Insulated to ground in the DC system, can stand on the ground with a stylus contact DC system in the positive or negative pole, if the stylus neon bubble does not light up, there is no grounding phenomenon. If the neon bubble is bright, it shows that there is a grounding phenomenon, and its bright as in the tip of the pen, then the positive pole is grounded. If the light is at the end of the finger, it is negative grounding. However, it must be pointed out that in the DC system with a ground monitoring relay, can not be used to determine whether the DC system is grounded!
The use of liquid crystal digital display inductance stylus
① This stylus can not only measure AC 220 Ⅴ, but also 110V, or even as low as 12V, can also measure DC. Specific methods of use refer to the manual, not described here.
② induction distance is not very far, I usually stick to the wire insulation skin test. Firewire and zero wire twisted together must be separated, otherwise the measurement is not allowed. I think the skin can be measured on the line, the distance is not allowed that is not also necessary.
③ If you can separate each wire, and know which wire is broken, not the kind of wire handle type, electric pen against the outer skin of the wire
Looking for the break point is still very convenient.
④ If it is a handful of wires, the wires must be spread out in order to measure the electrically charged wires without stripping the outer skin.
The use of inductive stylus, and digital multimeter, as in practice, need to continue to explore, and constantly summarize the experience in order to master the effective testing methods, for my use.
