Feature(may vary by option.)
●Made of 1.6mm double-sided fiberglass board, the detection effect is remarkable.
●This set of positioning is an electronic teaching kit, mainly used to link welding and learning the working principle, can not really explore treasure, induction distance within 5 cm.
●Power supply voltage: 3 to 5 V
●Dimension: about 66*61mm/2.60*2.40in
●Application:Game entertainment, safety inspection, search body metal products, including mobile phones, control knives, etc. According to the principle of this production, can also be designed according to the principle of this suite of car detection, flow statistics, elevator floor control, production equipment location detection, production equipment development and design, electronic product design.
[DIY Kit]
Description
Debugging after welding:
The machine L1, L2 uses copper wire on the printed board to form inductance, without the need for everyone to make their own inductance, simple, high success rate! The circuit just uses more than 10 components, so long as the installation is correct, it can work normally. After installation, connect the power supply, adjust the potentiometer to just make no noise (not close to the metal), with the printed board antenna near the metal, it should sound at this time, away from the metal should stop the sound, if away from can not stop the sound, the potentiometer should be turned a little counter-clockwise and try again until it meets the requirements.
Common problems:
Long sound after power on, this is because the front oscillatory stage does not start vibration, there may be resistance, transistor and other components misplaced, or circuit boards in the coil between turns short circuit or open circuit, please use a magnifier to examine carefully. In addition, the Q2 magnification is too low to make Q3 turn off.
If you need a longer detection distance and higher sensitivity, please make your own detection coil. The larger the diameter of the detection coil, the farther the detection distance will be. The higher the Q value of the detection coil, the stronger the resolution for small metals.The effective diameter of the coil of the detector is about 5CM. The relationship between the Q value and the diameter of the coil and the detection distance requires further experimentation. In general, the maximum effective detection distance is approximately equal to the diameter of the detection coil.
Package Includes: 1Set