Pressure sensor testing and calibrating device
A pressure sensor and calibration device technology, which is applied to measurement devices, fluid pressure measurement, instruments, etc., can solve problems such as deviations in test calibration methods, influence on pressure sensor calibration results, and inability to completely simulate downhole pressure and downhole temperature conditions. , to achieve the effect of improving work standards and work efficiency
Active Publication Date: 2018-09-04
CHINA NAT OFFSHORE OIL CORP +1
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Problems solved by technology
Because when the sensor is working in the downhole, the zero point drift is affected by the temperature as well as the pressure, not simply by the temperature or pressure; therefore, this test method cannot completely simulate the downhole pressure and downhole temperature conditions. The calibration method deviates from the actual operating conditions, which affects the calibration results of the pressure sensor
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[0027] In order to make the purpose, technical solutions and advantages of this document clearer, the embodiments of this document will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.
[0028] In the following description, a lot of specific details are set forth in order to fully understand this article, but this article can also be implemented in other ways than described here, therefore, the protection scope of this article is not limited by the specific embodiments disclosed below .
[0029] The pressure sensor testing and calibration device of some embodiments herein will be described below with reference to the accompanying drawings.
[0030] The pressure sensor test calibration device provided by the present invention, such as figure 1 As shown, it includes a pressuri...
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The invention discloses a pressure sensor testing and calibrating device which comprises a pressurizing device, a heating device, an energy storage device, a pressure releasing device and a detectiondevice. The pressurizing device is connected with a soleplate provided with a pressure sensor via a pipeline, the soleplate is positioned in the heating device, the energy storage device and the pressure releasing device are connected to the pipeline, and the detection device is electrically connected with a pressure sensor to test and calibrate the pressure sensor. During use, the pressure sensoris mounted on the soleplate, the detection device is electrically connected with the pressure sensor, the pressurizing device applies a pressure of a set value to the pressure sensor via the pipelineand the soleplate, the heating device adjusts the temperature of the pressure sensor, the down-hole temperature and pressure are simulated to carry out zero drift test on the pressure sensor, the pressure sensor testing and calibrating device can measure output response of the pressure sensor at different temperatures, and he working standard and efficiency are improved effectively.
Description
technical field [0001] This article relates to but not limited to the field of downhole petroleum tool equipment, especially a pressure sensor testing and calibration device. Background technique [0002] Pressure sensors are indispensable functional devices for downhole petroleum tools, and the measurement accuracy and working reliability of pressure sensors directly affect the operation quality of downhole petroleum tools. During the operation of downhole oil tools, the main factors affecting the stable operation of pressure sensors are as follows: [0003] 1. Downhole pressure and temperature factors will cause the zero point drift of the pressure sensor; [0004] 2. When the downhole pressure is constant, different downhole temperatures will bring different output responses to the pressure sensor. [0005] That is, before downhole oil tools operate, how to equip pressure sensors that are not affected by downhole pressure and temperature has also become a key step to en...
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Login to View More IPC IPC(8): G01L27/00
CPCG01L27/005
Inventor 贾建波安立恒孙龙飞孙师贤吉玲
Owner CHINA NAT OFFSHORE OIL CORP