myt constant tension measuring device

Mechanical-type sensor is to be measured (force, pressure, temperature and other physical quantities) is converted to mechanical quantity, the elastic deformation of the elastic element itself sensor output. Mechanical sensors have many applications: for dynamometer spring balance; used to measure fluid pressure bellows; a bimetal temperature measurement and the like. Advantages of mechanical sensors is very prominent, indicating instrument mechanical structure is simple, reliable, inexpensive and easy to use, price, intuitive readings and other characteristics. Disadvantage of mechanical sensors is elastic deformation is not too large, otherwise it will affect the linearity error measurement, it is because the elastic element has a creep and springback phenomenon. In addition, since amplification and instructions for the mechanical transmission links and more, not only by the gap, and inertia, low natural frequency, applies only to detect slowly changing or static is measured. In order to improve the measurement frequency range, can be measured with the elastic member is converted to displacement amount, and other forms of sensors (resistors, capacitors, etc.) to convert the displacement amount into an electrical signal output. Micro detection switch (mechanical-type sensor), automatic detection, automatic control technology widely used. This switch can change the motion of the object, the position or size of the converted ON, OFF signal. Probe wire utilizes the photoelectric principle of the motion detecting fiber, when the fiber is normal, due to the drawing or winding machines and other actions, sensors located on U-shaped groove of the fiber have a slight jitter, this jitter will continue to block U-shaped grooves on both sides and receiving infrared light to produce a continuous infrared pulse; When the filament is disconnected, the continuous infrared pulse decreased or disappeared, probe wire through the frequency detection and judgment to determine the infrared pulses whether the fiber is disconnected, the device is essential for drawing broken wire detection devices. Probe wire is capable of non-contact detection of broken wires spinning and tie strips is time to cut off the broken wire, to prevent the filament winding machine parts. It is less affected by ambient temperature and humidity, and thus high reliability and accuracy, greatly improving the accuracy and reliability of the broken wire detection. Probe wire circuit mainly infrared emission circuit, infrared receiver circuit, amplifying some part of the circuit, a modulation circuit, demodulation circuit, touch-sensitive delay circuit, overcurrent protection circuit and output circuit. Company Name: Phil Canterbury textile control device (Wuhu) Co., Ltd. Address: Anhui Wuhu Yijiang Torch High-tech Zone Road 20 Website: Phil Cantor www.filcontrol.cn