Skip to content

Select your region & language

Global

Region

Overview of Non-Contact Thickness Meter and Related Products

img-thickness-23.png
CL-015

Using highly stable capacitive micro-displacement sensors (gap detectors), we achieve non-contact, high-precision thickness measurement. Nine types of sensors are available to choose from depending on the object being measured and its shape. By combining these with thickness gauges (CL series) and displacement gauges (VT series), you can build the optimal system for your application.

It is highly effective for measuring axial vibration and surface runout of rotating shafts such as turbines, electric motors, compressors, and machine tool spindles, as well as for measuring and controlling the thickness and width of moving objects. It has a wide range of applications, mainly in measurement and control, including measuring and monitoring displacement, deflection, and warp.

Electrostatic Capacitance-type Gap Detectors

Standard type

VE-5010 VE Series Sensor (Integrated Cable) VE-1020 VE Series Sensor (Integrated Cable) VE-1520 VEシリーズ センサー
VE-5010 VE Series Sensor (Integrated Cable) VE-1020 VE Series Sensor (Integrated Cable) VE-1520 VE Series Sensor
Features
Measurement range:
50–500 μm
External shape: Φ6
Cable length: 1.5 m		 Features
Measurement range:
100 to 1000 μm
External shape: Φ8
Cable length: 1.5 m		 Features
Measurement range:
150–1500 μm
External shape: Φ10
Cable (optional):
VL-1520/1521 (1.5 m)
VE-3020 VEシリーズ センサー VE-8020 VEシリーズ センサー  
VE-3020 VE Series Sensor VE-8020 VE Series Sensor  
Features
Measurement range:
300 to 3000 μm
External shape: Φ20
Cable (optional): VL-1520/1521 (1.5 m)		 Features
Measurement range:
800 to 8000 μm
External shape: Φ40
Cable (optional): VL-1520/1521 (1.5 m)		  
Suitable measuring instruments
VT-5200/VT-5700, CL-7100/CL-7100S

Ø10 mm Common clamp shape type

VE-2011 VEシリーズ センサー VE-5011 VEシリーズ センサー VE-1021 VEシリーズ センサー
VE-2011 VE Series Sensor VE-5011 VE Series Sensor VE-1021 VE Series Sensor
Features
Measurement range: 20–200 μm
External shape: Φ3 (tip)
Cable (optional):
VL-1520/1521 (1.5 m)		 Features
Measurement range: 50–500 μm
External shape: Φ6 (tip)
Cable (optional):
VL-1520/1521 (1.5 m)		 Features
Measurement range: 100 to 1000 μm
External shape: Φ8 (tip)
Cable (optional):
VL-1520/1521 (1.5 m)
VE-8021 VEシリーズ センサー    
VE-8021 VE Series Sensor    
Features
Measurement range: 800 to 8000 μm
External shape: Φ40
Cable (optional): VL-1520/1521 (1.5 m)		    
Suitable measuring instruments
VT-5200/VT-5700, CL-7100/CL-7100S

Non-Contact Thickness Meter (capacitive type)

The CL-7100 series is a non-contact thickness gauge for conductors, semiconductors, and insulators that uses a VE series capacitive gap detector. Capacitive sensors have a proven track record as non-contact sensors, and they enable highly accurate and stable thickness measurement with simple operation.
The CL-7100 series offers a conductor/semiconductor measurement function using two sensors (standard) and an insulator measurement function using one sensor (CL-0740 option).
The CL-7100 requires a minimum installation distance of 1.5 m between the VE sensor and the main unit, while the CL-7100S can be installed at a maximum distance of 11.5 m.

  • Measurement Example 1: Monitoring of film (insulator) thickness

    Measurement Example 1: Monitoring of film (insulator) thickness

  • Block diagram

    Block diagram
CL-7100 Non-Contact Thickness Meter CL-7100S
Non-Contact Thickness Meter (sensor amplifier separate type)

CL-7100 Non-Contact Thickness Meter

 CL-7100S Non-contact thickness gauge (separate sensor and amplifier type)

CL-0710 Sensor Amplifier

CL-0710 Sensor Amplifier
Measurement items
Thickness: The thickness of the object being measured (conductor/semiconductor).
Gap A: The gap between sensor A and the object being measured.
Gap B: The gap between sensor B and the object being measured.
AB: Step difference, parallelism (AB)
Thickness: The thickness of the object being measured (insulator).
*When CL-0740 with insulation measurement function is installed.
Temperature：Temperature
*When CL-0741 is equipped with temperature measurement and correction function.		 Measurement items
Thickness: The thickness of the object being measured (conductor/semiconductor).
Gap A: The gap between sensor A and the object being measured.
Gap B: The gap between sensor B and the object being measured.
AB: Step difference, parallelism (AB)
Thickness: The thickness of the object being measured (insulator).
*When CL-0740 with insulation measurement function is installed.
Temperature：Temperature
*When CL-0741 is equipped with temperature measurement and correction function.
Option
CL-0720 High resolution calculation function
CL-0721 High-impedance grounding mode
CL-0722 VE measurement range change
CL-0730 Analog output function
CL-0731 Comparator output function
CL-0732 Analog comparator output function
CL-0740 Insulator measurement function
CL-0741 Temperature measurement and correction function
CL-0750 BCD output function
CL-0751 Ethernet communication function
Option
CL-0720 High resolution calculation function
CL-0721 High-impedance grounding mode
CL-0722 VE measurement range change
CL-0730 Analog output function
CL-0731 Comparator output function
CL-0732 Analog comparator output function
CL-0740 Insulator measurement function
CL-0741 Temperature measurement and correction function
CL-0750 BCD output function
CL-0751 Ethernet communication function

Compatible sensors
VE series

 Compatible sensors
VE series

Non-contact Thickness Meter (Capacitive type)

Measurement Example: Non-contact observation of axial vibration and eccentricity of a rotating shaft.

Measurement Example: Non-contact observation of axial vibration and eccentricity of a rotating shaft.

The VT series includes the VT-5200 series (for laboratory and research use) which uses AC power only, and the compact VT-5700 series (for line and embedded systems) which uses DC ±15V only.

Additionally, the output response frequencies are available in 4kHz and 10kHz; please select the appropriate frequency based on your application.

VT-5210 Non-Contact Displacement Meter (4 kHz) VT-5220 Non-Contact Displacement Meter (10 kHz) VT-5710 Non-Contact Displacement Meter (4 kHz)
VT-5210 Non-Contact Displacement Meter (4 kHz) VT-5220 Non-Contact Displacement Meter (10 kHz)

VT-5710 Non-Contact Displacement Meter (4 kHz)
Features
Output: 0 to 5 V /
0 to 100% FS
Linearity: ±0.2%FS/
10-100% FS
Response frequency: DC to 4 kHz
Monitor display: 20-segment LED
Analog output offset function		 Features
Output: 0 to 5 V /
0 to 100% FS
Linearity: ±0.25%FS/
10-100% FS
Frequency response: DC to 10 kHz
Monitor display: 20-segment LED
Analog output offset function		 Features
Output: 0 to 5 V /
0 to 100% FS
Linearity: ±0.2%FS/
10-100% FS
Response frequency: DC to 4 kHz
Monitor display: 10-segment LED
Power supply
AC 100-240 V / 10 VA		 Power supply
DC ± 15 V / 100 mA
VT-5720 Non-Contact Displacement Meter (10 kHz)    
VT-5720 Non-Contact Displacement Meter (10 kHz)    
Features
Output: 0 to 5 V /
0 to 100% FS
Linearity: ±0.25%FS/
10-100% FS
Frequency response: DC to 10 kHz
Monitor display: 10-segment LED		    
Power supply
 DC ± 15 V / 100 mA
    
Compatible sensors:　　　　　　　　　　　　　　　　　　　　　　VE series

* FS (Full Scale): This is the maximum measurement range of the VE sensor.

Related Products

VL-1520 Cable length: 1.5m
(Straight-type connector on both ends)		 VL-1520 Cable length 1.5m (straight type connectors on both ends)
VL-1521 Cable length: 1.5m
(L-shaped connector - straight type connector)		 VL-1521 Cable length 1.5m (L-type connector - straight type connector)

Last updated:2025/10/29