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The most accurate device for measuring ultra-high pressure in the working pressure chamber is a piston pressure gauge, which is based on the absolute measurement method(brown fused alumina). Ruhovsky proposed a piston pressure gauge theory with a measuring multiplier, and designed a set of 200, 500, and 1000 trillion N / m piston pressure gauges(aluminum oxide grit). The 0.35 tube pressure gauge prototype can be used to measure pressures below 500 meganewtons.

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Ultrasonic sensors are connected to the measurement circuit using a relay coaxial cable(brown aluminum oxide). Introduce the strain measurement method of the abrasive test block (8-character block) because of its unique characteristics. The testing machine is equipped with a synchronizer, which activates the recorder after the testing machine is started(green silicon carbide). The main components of the acoustic method are the transmitter and the receiver. This method has been used to test resin binder products.

Poluchini's recommended device based on the principle of vibrating double differential sealed pistons can achieve an upper measurement limit of 3500 shell Newtons / meter(brown aluminium oxide). The relative extension time cannot be recorded with mechanical strain gauges (Tyrem6eprep type, Aueron type, etc.). Because of its simple structure and reliable operation, it has been widely used(synthetic corundum). Its measuring range can reach 1000 meganewtons / meter, and the accuracy is 0.2 ~ 4%.

In order to keep the pressure measurement value above 4000 meganewtons / meter, an indirect measurement method can be used, which is based on the relationship curve of manganese copper resistance and pressure(white alumina). No matter under laboratory conditions or under production conditions, ultra-high pressure devices are calibrated according to the reference point(black silicon carbide). Many natural crystals have similar properties to varying degrees.

Is usually measured by the amount of pressure changes the volume of the pressure chamber or resistance to determine the value of the reference point, the data obtained are classified according to their respective values(black aluminum oxide). The data obtained by Brigitte, Kennedy, and other researchers has a dispersion of 30%, due to hysteresis and impurities in the substance(emery abrasive). For this reason, in order to mark the pressure scale, the most correct method is to scale based on some unrelated phenomena.

The tube pressure gauge with electric contact is used as the pressure sensor in production(pink aluminum oxide). The measurement of the relative elongation of the Tang test block (8-shaped block) As mentioned above, the strain measurement problems of the structural elements and equipment used in the abrasives industry (the same is true of grinders) are all solved by standard strain measurement methods(aluminum oxide abrasive). The time-scale signal is sent to the vibrator (type II) of the same oscilloscope.

Measuring the relative elongation of brittle samples is a complicated problem in the measurement technique, because the duration of the fracture process is so short that it is difficult to record it by the general method(silicon carbide abrasive). Studies have shown that a reasonable solution is to comprehensively adopt the two methods of electrical strain measurement and ultrasonic method(60 grit aluminum oxide). The electric vibration is sent to the vibrator through the amplifier of the yIM-1M ultrasonic flaw detector.