? I. Overview: JT160 is intelligent ultrasonic thickness gauge, using the latest high-performance, low-power microprocessor technology, based on ultrasonic measuring principle, can measure the thickness of the metal and many other materials, and can sound velocity of the material measurements. You can produce a variety of equipment to monitor pipelines and pressure vessels, they are subject to the degree of monitoring corrosion thinning can also be a variety of sheet metal and machined parts for the accurate measurement during use. The instrument can be widely used in petroleum, chemical, metallurgy, shipbuilding, aviation, aerospace and other fields. ? Second, the technical parameters: ◆ Display Method: Segment LCD display high contrast, high brightness EL backlight; ◆ Measuring range: 0.75 ~ 300mm (steel), metric and imperial option; ◆ Velocity range: 1000 ~ 9999 m / s: ◆ Resolution: 0.1 / 0.01mm (optional) ◆ Indication Accuracy:? ± (0.5% H + 0.04) mm H is the actual thickness of the measured object ◆ measurement cycle: single-point measurement 4 times / second, scanning Mode 10 times / sec; ◆ Storage capacity: can store 20 groups (up to 99 measurements) thickness measurement data, can be connected with micro-printer or PC, to achieve mass storage. ◆ Working voltage: 3V (2 AA-size alkaline batteries in series) ◆ Continuous working time: about 100 hours (without backlight time) ◆ Communication interface: RS232, can be connected with the mini-printer or PC ◆ Dimensions: 150 × 74 ? × 32 mm ◆ Total Weight: 245g three main functions: ◆ suitable for measuring metals (such as steel, cast iron, aluminum, copper, etc.) thickness, plastics, ceramics, glass, fiber glass and any other good ultrasonic wave conductor; ◆ can be equipped with a variety of different frequencies, different chip sizes duals use; ◆ has a probe zero calibration, two-point calibration function, the system can automatically correct errors;? ◆ known thickness can counter measure the speed of sound, in order to improve the measurement accuracy; ◆ with coupling state prompts; ◆ There EL backlit display, easy to use in dimly lit environments; ◆ have remaining battery indicator, real-time display remaining battery charge; ◆ has automatic sleep, automatic shutdown and other power-saving features; ◆ small, portable, high reliability, suitable for harsh operating environment, anti-vibration, shock and electromagnetic interference. ? Fourth, the working principle: The ultrasonic thickness measurement of the thickness of the ultrasonic pulse is generated by the probe reaches the subject's body through a coupling agent, a part of the ultrasonic signal is received by the object back reflection, the probe measured by the bottom surface reflected echo , to accurately calculate the round trip time of ultrasonic waves, and the thickness value determined by the formula, The calculated results are displayed. Where: H- measure thickness; ?????? v- material velocity; ?????? t- round in the specimen in ultrasonic propagation time again. ? Five instrument configuration: Table 1 instrument configuration No. Name Quantity Remarks Standard Configuration 1 host 1 2 3 couplant standard probe (5MHz) 1 only one bottle of 4 ABS instrument case a five random data 1?????? 6 battery compartment tool 1? 7 AA (5) size alkaline batteries 2? Optional 8 coarse grain probe (2MHz)??