KY-82 Roof dynamic instrument uses: ⑴ stope roof sinking speed measurement, the cumulative amount of subsidence, and at the same time observing the work load can be drawn to reflect the characteristics of the P- △ L roof curve (Figure 1). ⑵ measured stope hard roof fracture cases (see Figure 2), I, II, III roof sinking speed measuring instrument. I, II, III instrument is placed in the lower part of the tunnel roof stope dynamic instrument ky82, the following occurs hard roof fracture: I No. instrument sudden slow sinking speed quickly at first, II No. instrument sudden sinking fast speed to slow, III No. first slow sinking speed instrument sudden fast. More About KY-82 number Roof Roof dynamic instrument display dynamic instrument, please log in Tai'an City, Warner Electrical Equipment Co., Ltd. official website to view the site at: http: //www.tahnjd.com/product.asp pro = 38? to everyone focuses on KY-82-type roof monitor dynamic pressure observation in the mine used: surrounding rock displacement amount at the beginning of mining, roadway surrounding rock displacement is an important indicator of the mine shoring. The detection of this indicator is the KY-82 precision instrument Roof dynamic monitoring instrument, the instrument by Warner Mechanical and Electrical Equipment Co., Ltd. Tai'an City ky82 roof to develop and produce a dynamic instrument, is now in the country to promote the use of more than 30 years, is a coal mine rock pressure observation roof subsidence detection, observation of surrounding rock displacement amount indispensable instrument, KY-82-type dynamic instrument roof structure is complex, but the operation method is very intuitive, it is convenient to use, performance, 100% reliable. The main technical parameters: ① instrument height: 1.0 ~ 3.0 m; ② measuring range: 0 ~ 200 mm; ③ minimum reading value: 0.04mm; ④ crude read full scale: the 200mm error is less than 1%. Roof dynamic instrument | Quality | Mine Roof dynamic instrument provided by Warner Mechanical and Electrical Equipment Co., Ltd. Tai'an City. "Roof dynamic instrument, mining intrinsically safe pressure detector, under reduced pressure hydraulic supports self-recording instrument" Preferred Mechanical and Electrical Equipment Co., Ltd. Tai'an City Warner (2), the company is located in: Mountain Avenue Taian City, Shandong Province, No. A66, over the years, Warner electromechanical adhere to provide customers the best quality service, Contact: Mr. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Warner electromechanical expect to be your long term partner!