应用领域：
旋转机械轴系的位移、振动、转速、膨胀、偏心、油膜厚度的在线监测，产品的机械尺寸、厚度、表面不平度检测。
工业过程自动化的限位、计数及其它精密控制，可在石化、冶金、钢铁、电力、航空航天、制药、机械制造等行业广泛应用。

The eddy current displacement sensor can dynamically and noncontact the relative vibration displacement of the measured metal conductor and the end of the probe (such as shaft vibration, etc.).
The eddy current displacement sensor can measure the relative displacement of the measured metal conductor and the end of the probe, such as the axial displacement, the expansion and so on, in a static and non contact way.
In engineering vibration, vibration monitoring is the most authoritative method for analyzing the running state and operational malfunction of rotating machinery and reciprocating machinery. It is most timely and practical. For the unbalanced rotor, two connecting rotor misalignment, shaft bearing wear, static crack and rub impact rotor blade with casing failure phenomenon mainly reflects changes in vibration amplitude, phase and frequency, these are the most critical information and are easy to measure.
Eddy current displacement sensor has the characteristics of long term working reliability, non-contact measurement, strong anti-interference ability, free from oil and water and other media. It has wide application and simple structure. It is mostly used for long-term and real-time monitoring of shaft vibration, axial displacement, shaft speed and shell expansion of large rotating machinery, so as to effectively protect the safe operation of equipment. The trend analysis and fault diagnosis of the monitoring data can also be carried out to achieve the purpose of predicting maintenance and troubleshooting.
2. characteristics and composition:
Specially designed for monitoring, protection and fault diagnosis of rotating machinery, in line with the API670 standard of the American Petroleum Association. According to the national JJG644-90 vibration displacement sensor regulations, military technology manufacturing.
High temperature resistant, it can work continuously in oil, water and steam for a long time. It has high sensitivity, wide linear range, fast response speed, strong anti-interference ability and high reliability.
Eddy current probe + extension cable (selection) + 330X00 prefix. The improved eddy current displacement induction technology is compatible with the BENTLY and PHILLIPS eddy current displacement sensors.
The advanced manufacturing technology and the perfect quality assurance system are more suitable for the special specifications of all kinds of products.

The selection of probe, recommended to choose the standard linear range is greater than the probe body movement range of more than 20%;
Even if the measured surface area can not meet the minimum sample size requirements, can choose a small probe extended linear range;
"If the probe cable without pipeline protection, recommended to choose the armored probe, the cable is not damaged;
"If there is no special installation restrictions, usually choose standard installation type;
The probe is convenient for installation without screw thread: the screw is installed, no thread can reduce the need for screwed in the screw length of appropriate length;
The probe shell length depends on the installation position and the distance to be measured, if there is no special needs, recommend 40 or 50mm;
The long screw installation, cable or 1.0m 0.5m should be long, so as not to rotate when the probe is not easily broken cable, should also choose extension cable;
The installation of the probe inside the machine, the probe length should ensure that the cable joint can be in the outside of the machine, to prevent oil pollution inside the joint;