Detection based on “contact”
What is a contact positioning sensor?
As the name indicates, this is a sensor measuring the position of a target by directly contacting it. When the height of the spindle changes as shown in the figure on the right, the sensor internally calculates the amount of displacement. Contact Positioning Sensors are mainly used for detecting the height, thickness, or warpage of the target.
Air push type measuring by extending a spindle
Since measurement is possible with the sensor head being fixed, no mechanism is required to move the sensor head. This saves installation space and greatly reduces man-hours during installation.
The following table shows typical characteristics that vary depending on the detection system.
Sensor type comparison based on the detection method
|Detectable target||Metal||Almost all materials||Almost all materials||Almost all materials||Solid|
|Dust, water, oil, etc.||Unaffected||Normal||Normal||Normal||Unaffected|
|Detectable target||Metal||Almost all materials||Almost all materials|
|Dust, water, oil, etc.||Unaffected||Normal||Normal|
|Detectable target||Almost all materials||Solid|
Detection based on “eddy current”What is an inductive displacement sensor?
Inductive displacement sensors
Detection based on “contact”Principle and types of contact positioning sensors
Contact Positioning Sensors