A sensor is a device or device capable of sensing a specified measured signal and converting it to a usable output signal, usually consisting of a sensing element and a switching element. Sensor installation is inseparable from the wiring terminals, so the direction of development of sensors and terminals are closely related to the direction of research and development. Recently, China's first 150 ℃ electric pump downhole sensor was born, to fill the domestic temperature level of 150 ℃ downhole sensor technology blank.
       China's sensor development has been more than 50 years, the reform and opening up to the sensor industry has brought vitality and vitality. To the 90's, under the guidance of relevant national policy-making, the sensor industry has entered a new period of development. The application of sensors has spread to industrial production, marine exploration, environmental protection, medical diagnostics, bio-engineering and other fields, but the market share, foreign manufacturers accounted for the majority, although the domestic manufacturers have a rapid development, but Still can not keep up with the pace of international sensor technology. As of January 16, China's first set of 150 degrees Celsius pump downhole sensor prototype has been in North Daqing Oilfield 3-D 4-P38 well field application more than two months, the effect is good. This is the first independent research and development products to fill the domestic temperature of 150 degrees Celsius underground sensor technology blank, the cost of imported products than half of foreign low.
       Technical staff after a month of monitoring, that this product can accurately measure the electric submersible pump inlet pressure, outlet pressure, fluid temperature, motor temperature, unit vibration 7 parameters. "Access to these parameters, you can master the parameters of oil production conditions, analysis of oil production status, to help users optimize the ESP submersible pump well mining programs to improve oil recovery efficiency." Daqing Oilfield Power Pump Technology R & D Center, Han Jiqiang, deputy director of electrical design . Research and development of this product in 2014, when the domestic electric pump downhole sensors are mostly resistant to 125 degrees Celsius, and break through "125 degrees Celsius" particularly difficult, but also particularly critical. Technical personnel through the underground power system, data acquisition and signal conditioning unit, timing control and data transmission mechanism in-depth study, the formation of 150 degrees Celsius under high temperature environment, multi-channel time-sharing transmission technology, with self-stabilization of underground equipment power supply technology two key technology. Last year in November, scientific research team broke through the domestic temperature sensor 125 degrees Celsius maximum temperature of the technical bottlenecks to solve the traditional design of sequencial control circuit is expensive, high power static power underground, foreign high and small devices related to export restrictions and other technical problems.
       Although the progress of sensor technology is gratifying, but in the field of electronic components, such as sensors such as independent research and development out of the country's products is indeed one of the few. Sensor multi-purpose direct-welded terminal blocks, direct-welded terminal block is a circuit board terminal, the insulation material for the PA66, conductive parts are phosphor bronze matte tin, high and low, a number of degrees of direct welding terminals to meet the present There are sensor applications. At present, the use of terminals in the environment -40 ℃ ~ 105 ℃, the sensor's use of the environment raised to 150 ℃, no doubt the terminal temperature of the proposed higher requirements.