Product outline
Also, considering global environment, those products are Pb-free and conforms to RoHS2 Directive.
It is used both as a versatile high-performance tool for R&D and as a built-in component for semiconductor and electric devices.
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.
Applications
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.
- A wide variety of product lineup with standard measuring range from 30 μm to 10000 μm.
- 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
- High linearity : ±0.05% or less
- Low noise : 0.002%/FS(rms) 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.
