Product outline
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.
Please note in advance that there are cases in which we are unable to sell this product due to Regulations for Export Trade Control in Japan.
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
■ Specification of standard cylindrical probe
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 | Outer diameter (mm) |
Target minimum diameter(mm) |
Offset (μm) |
|---|---|---|---|
| △X□□-30 | 4 | 4 | 10 |
| △X□□-50 | 10 | ||
| △X□□-100 | 10 | ||
| △Y□□-50 | 6 | 6 | 10 |
| △Y□□-100 | 10 | ||
| △Y□□-250 | 25 | ||
| △Y□□-500 | 50 | ||
| △Z□□-500 | 12 | 11 | 50 |
| △Z□□-1000 | 100 | ||
| △T□□-3000 | 30 | 28 | 300 |
| △T□□-5000 | 500 |
“△” = cable type, “□□” = probe length (mm)
| Range (μm) | Resolution (nmrms) |
Linearity (%) | Probe length (mm) |
Cable length (m) |
|---|---|---|---|---|
| 30 | 3 | ±0.05 |
5 (Custom-order product) 10 30 |
2 (Standard) |
| 50 | 4 | |||
| 100 | 8 | |||
| 50 | 4 | |||
| 100 | 8 | |||
| 250 | 20 | |||
| 500 | 40 | ±0.1 | ||
| 500 | 40 | ±0.05 |
10 30 |
|
| 1000 | 80 | ±0.1 | ||
| 3000 | 180 | ±0.05 |
15 30 |
|
| 5000 | 300 | ±0.2 |
■ Specification of standard flange type probe
| Model | Outer diameter (mm) |
Target minimum diameter(mm) |
Offset (μm) |
|---|---|---|---|
| FK4006-500 | 15 | 15 | 50 |
| FK4006-1000 | 100 | ||
| FN4006-1000 | 19 | 18 | 100 |
| FN4006-2000 | 200 | ||
| FT4006-3000 | 29 | 28 | 300 |
| FT4006-5000 | 500 | ||
| FU5006-5000 | 39 | 38 | 500 |
| FU5006-10000 | 1000 |
| Range (μm) | Resolution (nmrms) |
Linearity (%) | Cable length (m) |
|---|---|---|---|
| 500 | 40 | ±0.1 |
2 (Standar) |
| 1000 | 80 | ||
| 1000 | 80 | ||
| 2000 | 160 | ||
| 3000 | 180 | ||
| 5000 | 300 | ±0.2 | |
| 5000 | 300 | ±0.1 | |
| 10000 | 600 | ±0.2 |
■ Amplifier specifications
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) | |
Please note that there are possibilities of individual differences in a color tone on display devices such as LEDs, fluorescent display tubes and LCDs due to manufacturing process or production lots.
