In order to protect machines, avoid resource waste in the production process, improve automation level and enhance production efficiency, Meiji has developed and designed an automated production tool - the MUD series of ultrasonic single and double sheet sensors. It can efficiently and accurately distinguish between single and double sheets of paper or plastic or metal sheets.


☆ Project Requirements ☆
A certain credit card processing customer hopes to use sensors to accurately identify the dual status of the material list to be cut on the mold during the material cutting process, avoiding expensive blade damage and unnecessary material waste during the cutting process, effectively improving production efficiency and quality.
☆ Project difficulties ☆
1. Credit card thickness 0.8-0.85mm
2. There is servo motor interference
3. The detection speed cannot be less than 5 sheets per second
☆ solution☆
The main principle of using Meiji MUD-60N/P-200 is to use an ultra-high frequency ultrasonic transmitter to send an ultrasonic beam from below the thin sheet. The sound waves cause the thin sheet to vibrate, and this also generates a very small sound wave on the other side of the thin sheet, which is received by the ultrasonic receiver. When the signal passes through two layers of thin sheets (double sheets), it becomes very weak and cannot reach the receiver. When the sensor recognizes an abnormality, it can send an abnormal signal to the device to ensure that the cutting blade is not damaged and the material is not wasted.

☆ Advantages of MUD series products ☆
1. Ultrasonic testing principle, good penetration, high stability, sensitive to propagation media
2. 3 control inputs, can select thick, standard, or thin modes based on the thickness of the measured object
3. No need for self-learning, plug and play
4. Flexible settings can be made through the Teach in function
5. Easy installation, LED indicator light is simple and clear
6. Can stably detect paper/metal/plastic/platinum/silicon wafer/battery electrode
☆Scene application display ☆

Ultrasonic technology's single and double sheet detection sensors are mainly used to detect the single sheet passing, double sheet, and multiple sheet alarm functions of the inspected object. They are not limited by the vibration, material, or color of the inspected object and are widely used in paper printing machines, assembly machines, folding machines, packaging machinery, solar batteries, silicon wafer manufacturing, labeling, PCB manufacturing, and so on.
