What is a displacement sensor?
A displacement sensor is also called a linear sensor, from the product category, it is a type of linear metal sensor. The function is to transform the tested physical quantity to electric quantity.
In the real application, the measurement of displacement has two types: one is to measure the material object dimension and the other one is to measure the mechanical displacement.
The classification: according to the way of tested quantity transformation, there are analog displacement sensor and digital displacement sensor.
Electromagnetic displacement sensor
The electromagnetic displacement sensor is used for testing the object’s actual displacement by monitoring the magnetic ring absolute position with non-touch technology. Due to its high precision and reliability, this product is applied in many cases.
As the magnetic ring is directly contacted with no sensitive parts, this displacement sensor can be used in some extremely severe environments. The sensor has good resistance to oil, liquid, dust or other pollution elements. The ingress protection rating can be as high as IP67. In addition to these, it can even be used in places of high pressure, high temperature and strong vibration. What’s more, the signal produced by the sensor is absolute displacement quantity, which won’t be lost or reset even there is a power cut or system restart.
Our inductive linear displacement sensor enjoys the following advantages: high reliability, long service life, high resolution, high-frequency response, good repeatability and high-pressure resistance, etc. It doesn’t need sliding contact with the object and it is suitable for hydraulic systems to detect the spool’s position precisely. The technical parameters of these displacement sensors are as the following:
|Model||Picture||Specification||Working stroke||Temperature range||PDF download|
|Model||Picture||Size||Displacement measure||Temperature range||PDF download|
|Model||Picture||Plug||Measuring stroke||Input voltage||Output voltage||PDF download|
The hydraulic resistance and protection proved by enclosures of the three displacement sensors above are as follow:
|Protection proved by enclosures||IP65||IP65||IP67|
The IWA1341A Series displacement sensor adopts the advanced technology from BSO Company in German. The IWA1341-063A makes great improvements based on the technology and its shell is made of stainless steel.
The IW9-03 inductive linear displacement transducer is used in the control circuits of DC 24V together with the measuring amplifier. The movable pole of the sensor causes the inductance change, and the change of inductance feeds back to the amplifier. Then the amplifier transforms the inductance change into the input voltage.
|Model||Picture||Working stroke (mm)||Linear precision(%)||Repeat precision(%)||Carrier wave(KHz)||Winding induction (mH)||Protection class||PDF download|
The G-MQ position switch is a safety valve displacement sensor with two outputs pin2 / pin4. It monitors spool’s position fast and accurately. The position switch has functions of voltage sure, overload proof, short circuit protection and polarity repeatability, high reliability and long service life.