Product outline
Also, considering global environment, those products are Pb-free and conforms to RoHS standard.
PS-Ⅲseries is the definitive version of PS sensor series, having various functions. Suitable not only as a laboratory tool for R&D but also as a built-in component for devices.
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 constant current power supply as shown in the figure, output voltage, calculated by the following formula, will be relative to the distance between the 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.
Applications
Specifications
Amplifier specifications｜Standard probe｜External Dimension｜PS-Ⅲ Order number
The PS-Ⅲ 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.
| Amplifier specifications | |
| Model | PS-Ⅲ |
|---|---|
| Standard range of voltage output | 0 to 10 V |
| Output terminal | BNC connector |
| Frequency characteristic | DC to 1 kHz |
| Operating temperature range | 10 to 40℃ |
| Operating voltage | AC 100 V (with supplied AC adapter) |
“□□” in the chart will be filled with probe length (mm)
| Model | Outer diameter (mm) | Offset (μm) | Range (μm) | Resolution (nmrms) | Linearity (%) | Probe length (mm) | Cable length (m) |
|---|---|---|---|---|---|---|---|
| AX□□-30 | 4 | 10 | 30 | 0.6 | ±0.05 |
5 10 30 |
2 (standard) |
| AX□□-50 | 10 | 50 | 1.0 | ||||
| AX□□-100 | 10 | 100 | 2.0 | ||||
| AY□□-50 | 6 | 10 | 50 | 1.0 | |||
| AY□□-100 | 10 | 100 | 2.0 | ||||
| AY□□-250 | 25 | 250 | 5.0 | ||||
| AY□□-500 | 50 | 500 | 10 | ±0.1 | |||
| AZ□□-500 | 12 | 50 | 500 | 10 | ±0.05 |
10 30 |
|
| AZ□□-1000 | 100 | 1000 | 20 | ±0.1 |
Order number example
| External Dimension | ||||
| Model | PS-Ⅲ-3N | PS-Ⅲ-2D | PS-Ⅲ-5N | PS-Ⅲ-4D |
|---|---|---|---|---|
| Output terminal | BNC×3 | BNC×2 | BNC×5 | BNC×4 |
| Dimensions(mm) | 186W×152H×331D | 257W×152H×271D | ||
| Indicator | No | Yes | No | Yes |
| PS-Ⅲ ordering number | ||||
| Amplifier model | Number of channels | Indicator | ||
|---|---|---|---|---|
| PS-Ⅲ | 2 or more | With indicator・・・D | ||
| Without indicator・・・N | ||||
| In case 4 channel indicator is required | ||||
| PS-Ⅲ | – | 4 | D | |
โปรดทราบว่า มีความเป็นไปได้ของความแตกต่างของสี ในอุปกรณ์ เช่น LEDs, หลอดภาพสี และ LCD เพราะกระบวนการผลิตที่มีจำนวนมาก
