_applied_  
_sciences_  
_Article_  
**Developing a Measuring System for Monitoring the Thickness of the 6 m Wide HDPE/LDPE Polymer Geomembrane with Its Continuous Flow Using Automation Equipment**  
**[PERSON] 1,*2, [PERSON] 1, [PERSON] 1, [PERSON] 2, [PERSON] 3,**  
**[PERSON] 3 and [PERSON] 3**  
Footnote 1: Department of Technological Equipment, Mechanical Engineering and Standardization, Karaganda Technical University, Karaganda 100027, Kazakhstan, [EMAIL_ADDRESS] (O.Z. ); [EMAIL_ADDRESS] (E.D.) Footnote 2: Department of Mineral Deposit’s Development, Karaganda Technical University, Karaganda 100027, Kazakhstan, murat, [EMAIL_ADDRESS]  
Footnote 3: Department of Automated Manufacturing Processes, Karaganda Technical University, Karaganda 100027, Kazakhstan, [EMAIL_ADDRESS] (L.D. ); [EMAIL_ADDRESS] (A.S.); [EMAIL_ADDRESS] (E.K.) Footnote 4: Correspondence: [EMAIL_ADDRESS]  
Footnote 5: footnotemark:  
Footnote 6: footnotemark:  
Footnote 7: footnotemark:  
Footnote 8: footnotemark:  
Footnote 9:  
+++ ==WARNING: Truncated because of repetitions==
footnotemark:  
++  
3. rigidity; 4. the ability to resist puncture and tearing; 5. flatness; 6. uniformity. The production and quality of the HDPE/LDPE polymer geomembrane is controlled by GOST R 56586-2015 [12]. This standard applies to extruded polyethylene geomembrane made of high-density polyethylene. The film is used in agriculture, in reclamation environments, and in construction; it is also used as a material for packaging in various sectors of the national economy [13]. The geomembrane is produced in rolls in the form of a sleeve, a half-sleeve (a sleeve cut along the entire length on one side), a sheet (a sleeve cut along the entire length on both sides with or without trimming edges), folded sleeves (with folds), half-folded sleeves, and other types. One of the main qualities of the HDPE/LDPE polymer geomembrane for the production of agricultural hoses is its strength [13]. It is achieved through the use of several different layers, as well as ensuring the specified parameters of the layer thickness, which is characteristic of today's composite materials [14]. Controlling the thickness of the geomembrane layers, as well as the rejects in the case of the ingress of various foreign bodies during extrusion, is carried out visually or using thickness gauges of various designs and physical principles [15; 16]. Industrial automated thickness measurement systems are not produced in Kazakhstan. However, there is a growing trend in the world of using optical measuring systems supporting implementation of industrial processes in machines where such systems have not been used before [17; 18]. There is a system of measuring the thickness of a moving geomembrane (measuring system of the LAP-Laser company, CALIX) containing a supporting structure made in the form of a frame with a supporting surface, two laser triangulation sensors rigidly fixed to the frame, an electronic unit, and a power supply [19]. The thickness of the geomembrane is calculated based on the values of the distances from the geomembrane to each of the sensors. Measurement data can be displayed and processed using an electronic unit, a programmable controller, or a personal computer. The disadvantage of this system (the CALIX system) is the presence of two laser sensors, which complicates the system for measuring the thickness of a moving geomembrane and lowers the accuracy of measuring the thickness of the geomembrane. The measuring system proposed by [PERSON] and [PERSON] is also widely used [20]. The system contains a supporting structure made in the form of the frame with a sliding surface and one laser triangulation sensor installed on it, an electronic data processing unit and a power supply unit, characterized in that the frame and the laser sensor are rigidly fixed to it form the measuring unit with a constant distance from the sensor to the sliding surface.