this device was produced under the supervision of kashan university science and technology park and tested in some industries. after all, this effluent was the output of a fiber dyeing factory in kashan city, the parameter of which is about 20,000 compounds. there is a lot of color in it, and if this waste water leaves the factory in the same way, it will be very bad for the environment of this factory outlet, and this settlement is after our machine. because we have engineered it ourselves, we can make the necessary changes for any sewage that comes. our device is one-fifth to one-tenth of the price of a foreign model, and we can make it with a fan. the technology used in this device treats wastewater without sludge because the device performs the work of wastewater treatment without additives. mehdi naqvi, sed and sima news agency. the researchers of a knowledge -based company succeeded in making a remote vibration measuring device. this device is able to measure displacements on a very small scale with great accuracy . using laser technology for measuring the vibrations of the bridge of