Product outline

Contactless capacitive displacement sensor with high response, high stability & high resolution.
PS-IA-HS is an ultra-precision displacement sensor that has achieved high responsiveness, high stability, high resolution and general versatility, applying our unique capacitance technology.
The response speed of the highly evaluated and proven PS-IA is enhanced to 5 kHz. PS-IA-HS enables to measure high-speed displacement phenomena that used to be difficult conventionally.


High responsiveness of 5 kHz

The usability of PS-IA is as it is, the response speed has become 5 times faster.
Makes it possible to measure high-speed displacement phenomena that used to be difficult conventionally.
Ideal for the runout measurement of rotating objects and the closed loop control of a piezo stage.

■ Main application

  • Runout measurement of rotating objects (Ex. High-speed spindles, main shafts, hard disks etc.)
  • Displacement & vibration analysis during caulking and press-fitting
  • Closed loop control of a piezo stage
  • For precise positioning of high speed & precision stage!
  • For a surface detection of the transparent electrodes!



Features

This is a single channel amplifier with BNC analog output, NEAR/FAR LED display, and zeroing function, operating with DC 24 V or AC 100 V power supply. This compact and multifunctional device can be used for various purposes such as R&D and integration to system and/or devices.

  • The calibration for each target measurement object is not necessary.(The sensitivity of the sensor is not affected as far as target objects are made of conductor material.)
  • Free from the influence of surface roughness.
  • Measures displacements of fast-moving objects too with high accuracy.
  • Even if the target measurement object is thin, the measurement is possible as long as it is a conductive body.
  • As the measuring area is below the diameter of the probe, measurements with high position resolution are possible.
  • Not affected by magnetism or electromagnetic induction.
  • A wide variety of product lineup with standard measuring range from 30 μm to 10000 μm.
  • High linearity : ±0.05% or less
Examples of custom-ordered probes


We can customize the shape for you! Please feel free to contact us anytime.

Principle of measurement

As shown in the figure below, the principle of parallel plate capacitor is applied to the PS sensor. Suppose the electrostatic capacitance between the center electrode and the target is “C”, the inductivity and distance between probe and the target are “ε” and “g,” and center electrode surface area is “A”, then, electrostatic capacitance can be calculated by the following formula:

In addition, by using AC constant current power supply as shown in the figure, the output voltage, calculated by the following formula, will be relative to the gap between sensor and the target object:

To achieve high linearity, parallel electric field is obtained at the center of electrode by equalizing the electric potential level of guard electrode and the center electrode.

Specifications

To make the sensor probe small, no electric circuit is built into the sensor probe. Special probes can be made to order as well (e.g. sensor probes resistant to vacuum condition).



Model △X□□-30 △X□□-50 △X□□-100
Outer
diameter
4 mm
Target
minimum
diameter
4 mm
Offset 10 μm
Range 30 μm 50 μm 100 μm
Resolution
(PS-IA-HS)
3 nm rms 4 nm rms 8 nm rms
Linearity ±0.05%
Probe length 5 mm(Custom-order product), 10 mm, 30 mm
Cable length 2 m(Standard)


Model △Y□□-50 △Y□□-100 △Y□□-250 △Y□□-500
Outer
diameter
6 mm
Target
minimum
diameter
6 mm
Offset 10 μm 25 μm 50 μm
Range 50 μm 100 μm 250 μm 500 μm
Resolution
(PS-IA-HS)
4 nm rms 8 nm rms 20 nm rms 60 nm rms
Specification
changed.
Linearity ±0.05% ±0.1%
Probe length 5 mm(Custom-order product), 10 mm, 30 mm
Cable length 2 m(Standard)


Model △Z□□-500 △Z□□-1000 △T□□-3000 △T□□-5000
Outer
diameter
12 mm 30 mm
Target
minimum
diameter
11 mm 28 mm
Offset 50 μm 100 μm 300 μm 500 μm
Range 500 μm 1000 μm 3000 μm 5000 μm
Resolution
(PS-IA-HS)
40 nm rms 80 nm rms 240 nm rms
Specification
changed.
480 nm rms
Specification
changed.
Linearity ±0.05% ±0.1% ±0.1%
Specification
changed.
±0.3%
Specification
changed.
Probe length 10 mm, 30 mm 15 mm, 30 mm
Cable length 2 m(Standard)

“△” = cable type, “□□” = probe length (mm)

Model FY1506-30 FY1506-50 FY1506-100 FY1506-250
Outer
diameter
5 mm
Target
minimum
diameter
4.4 mm
Offset 15 μm 15 μm 15 μm 25 μm
Range 30 μm 50 μm 100 μm 250 μm
Resolution
(PS-IA-HS)
3 nm rms 4 nm rms 8 nm rms 20 nm rms
Linearity ±0.05%
Cable length 2 m(Standard)
 
Model FE1506-100 FE1506-250 FE1506-500 FE1506-750
Outer
diameter
7 mm
Target
minimum
diameter
6.2 mm
Offset 20 μm 25 μm 50 μm 75 μm
Range 100 μm 250 μm 500 μm 750 μm
Resolution
(PS-IA-HS)
8 nm rms 20 nm rms 60 nm rms 120 nm rms
Linearity ±0.05% ±0.1%
Cable length 2 m(Standard)
 
Model FZ2006-500 FZ2006-750 FZ2006-1000 FZ2006-1500
Outer
diameter
11 mm
Target
minimum
diameter
10.4 mm
Offset 50 μm 75 μm 100 μm 150 μm
Range 500 μm 750 μm 1000 μm 1500 μm
Resolution
(PS-IA-HS)
40 nm rms 60 nm rms 140 nm rms 240 nm rms
Linearity ±0.05% ±0.1%
Cable length 2 m(Standard)
 
Model FK4006-500 FK4006-1000 FN4006-1000 FN4006-2000
Outer
diameter
15 mm 19 mm
Target
minimum
diameter
15 mm 18 mm
Offset 50 μm 100 μm 100 μm 200 μm
Range 500 μm 1000 μm 1000 μm 2000 μm
Resolution
(PS-IA-HS)
40 nm rms 80 nm rms 80 nm rms 160 nm rms
Linearity ±0.05%
Cable length 2 m(Standard)
 
Model FT4006-3000 FT4006-5000 FU5006-5000 FU5006
-10000
Outer
diameter
29 mm 39 mm
Target
minimum
diameter
28 mm 38 mm
Offset 300 μm 500 μm 500 μm 1000 μm
Range 3000 μm 5000 μm 5000 μm 10000 μm
Resolution
(PS-IA-HS)
240 nm rms 480 nm rms 400 nm rms 1200 nm rms
Linearity ±0.1% ±0.3% ±0.1% ±1.0%
Cable length 2 m(Standard)
 

The PS-IA is equipped with various features like one-touch zero reset function, NEAR/FAR LED display, and multichannel operability, and it can be used for wide variety of applications.

Model PS-IA-HS PS-IA-HS(B)(Option)
Standard range of
voltage output
0 to 10 V -5 to +5 V
Output terminal BNC connector
Frequency
characteristic
(≧-3 dB)
DC to 5 kHz
Operating
temperature range
+10 to +40℃
Operating voltage AC 100 to 240 V(±10%) (Free power supply 50/60 Hz)
DC 24 V 0.5 A (Please specify the type of input when ordering)
Dimensions 110W×30H×162D mm
Weight 360 g (main body)
 



Xin lưu ý rằng có thể có những khác biệt riêng về tông màu trên các thiết bị hiển thị như đèn LED, ống màn hình huỳnh quang và các màn hình LCD do quá trình sản xuất hoặc lô sản xuất khác nhau.