Outer diameter unevenness detector TM series

This device projects a constant amount of light onto the object being measured and monitors the unevenness of its outer diameter by observing the change in the amount of light transmitted, which is affected by the object's surface irregularities.

It is possible to detect irregularities in the outer diameter of all manufacturing lines, including vinyl-coated wires, communication cables, power cables, plastics, rubber, glass tubes, pipes, and tubing.

Features of the outer diameter unevenness detector

• Non-contact, high-speed, and continuous detection is possible.
• It can handle all linear speeds, from low to high.
• It is not affected by the color or material of the object being measured.
• It is less affected by vertical vibrations of the object being measured.
• The unevenness detection level can be set using a direct reading method.
• Multi-axis monitoring reduces the chance of missing irregularities.
• It can detect all kinds of irregularities ranging from 10µm to several millimeters or more.
• It is easy to handle and maintain.

Detection principle

When a certain amount of light is projected onto an object being measured, the parts blocked by the object will be in shadow.

The irregularities on the outer diameter are detected by the change in the amount of light passing through the slit in the light-receiving section.

Single-slit system

The outer diameter irregularities are detected by the change in the amount of light passing through the surface between normal conditions and when irregularities occur.

While twists and other irregularities in objects that are not perfectly round may be judged as unevenness, it can also detect gently tapered irregularities, although with some limitations.

Double-slit system

The difference in the amount of light received between the two slits is used to detect irregularities in the outer diameter.

While it may not be able to detect gradual changes in surface irregularities, it can detect irregularities in objects that are not perfectly round.

Types of irregularities that can be detected

We offer a wide range of models to suit the diameter of the object being measured and the detection direction, from thin wires of φ0.02 mm to extra-thick wires of φ130 mm.

It can detect various types of irregularities on the manufacturing lines of all kinds of products, including vinyl-coated wires, communication cables, power cables, plastics, rubber, glass rods, and pipes.

Real Products

Image acquisition device

The image acquisition device captures inline photographs of defects detected by the outer diameter unevenness detector (TM series).

By separating the detection and imaging functions, the system can handle inspections on high-speed production lines and can capture images even at linear speeds of up to 1,500 m/min.

Outer diameter irregularity detection unit with noise cancellation function

The TML-02 (display unit) and TML-1003W (detector) are higher-end models that add noise functionality to the conventional outer diameter unevenness detector.

Furthermore, it is possible to customize the TML-02 with a noise-canceling detection unit other than the TML-1003W.

Features of the Outer Diameter Irregularity Detection Unit with Noise Cancellation Function

• We have simplified various settings and calibrations using a touch panel.
• It can record up to 64 different bump and groove shapes.
• The recorded data can be saved to a USB memory stick.

Noise futon review

Since the uneven surface always passes through both slits, the change in light intensity at each slit will have almost the same waveform.

On the other hand, in the case of dust and debris, they may pass through only one slit, or they may pass through the slit at a speed different from the linear velocity.

Furthermore, in the case of ambient light, the light intensity of both slits changes simultaneously.

Based on these characteristics, the time difference in which the object being measured passes through the two slits is calculated using the linear velocity obtained from the speed input.

By not detecting signals that deviate significantly from this time frame, or waveforms that differ greatly between the two slits, as peaks and valleys, the noise during detection is canceled.

specification

Suitable for thin wires (measurement diameter: Φ0.02 to 10 mm)

Model TM-503W TM-1100XY TM-1003W TM-1104W Power supply unit PW-02 ― PW-01/02 ― detection direction 3 directions 2 meters 3 directions 4 directions Measurement method Double-slit infrared LED floodlight Applicable workpiece outer diameter φ0.02～3mm φ0.02～10mm φ0.02～8mm φ0.02～10mm unevenness detection range 20–999µm (setting level range) Accuracy of detecting unevenness Within ±1% of the maximum setting value Adaptive linear velocity [*1] 5-2000 m/min 5-1500 m/min Recorder output ±0.2V/0.1mm ±1V/0.1mm ±0.5V/0.1mm ±1V/0.1mm Alarm output Red LED with raised/recessed pattern lights up, relay contact output (AC250V 2A resistive load) Alarm duration [*2] 0.1 seconds 0.5 seconds 0.1 seconds 0.5 seconds Power supply [*3] DC±15V AC100V
50/60Hz DC±15V AC100V
50/60Hz Power consumption 6VA 10VA 6VA 10VA

[*1] The line speed range changes depending on the height of the unevenness.
[*2] It is also possible to hold it as an option.
[*3] AC200V power supply specifications are also available as an option.  

Suitable for use with medium wires (measurement diameter: Φ0.1 to 35 mm)

Model TM-3001W TM-3002W TM-3004WA TM-3008W
(TM-3004WA)
(TM-3004WB) TM-3016W
(TM-3004WA)
(TM-3004WB)
(TM-3004WC)
(TM-3004WD)   detection direction 1 direction 2 meters 4 directions 8 chapters 16 directions   Measurement method Double-slit infrared LED floodlight   Applicable workpiece outer diameter φ0.1 to 35 mm (up to φ45 mm possible depending on conditions) unevenness detection range 0.05–9.99 mm (setting level range)   Accuracy of detecting unevenness Within ±1% of the maximum setting value   Adaptive linear velocity [*1] 1-1500 m/min   Recorder output ±0.1V/0.1mm (each axis)   Alarm output Red LED with raised/recessed pattern lights up, relay contact output (AC250V 2A resistive load)   Alarm duration [*2] 0.5 seconds   Power supply [*3] AC100V 50/60Hz   Power consumption 10VA 10VA 10VA 20VA 40VA  

[*1] The line speed range changes depending on the height of the unevenness.
[*2] It is also possible to hold it as an option.
[*3] AC200V power supply specifications are also available as an option.  

Suitable for thick wires (measurement diameter: Φ0.1 to 60 mm)

Model TM-4001 TM-4002 TM-4004A TM-4008
(TM-4004A)
(TM-4004B) TM-4016
(TM-4004A)
(TM-4004B)
(TM-4004C)
(TM-4004D) detection direction 1 direction 2 meters 4 directions 8 chapters 16 directions Measurement method Single-slit white tungsten lamp floodlight Applicable workpiece outer diameter φ0.1 to 60 mm (up to φ65 mm possible depending on conditions) unevenness detection range 0.15–9.99 mm (setting level range) Accuracy of detecting unevenness Within ±2% of the maximum setting value Adaptive linear velocity [*1] 1-1500 m/min 1-1000 m/min Recorder output ±0.1V/0.1mm (each axis) Alarm output LED illumination (concave: yellow / convex: red)
Relay contact output (AC250V 2A resistive load, separate output for concave and convex) Alarm duration [*2] 0.5 seconds Power supply [*3] AC100V 50/60Hz Power consumption 10VA 20VA 30VA 60VA 120VA

[*1] The line speed range changes depending on the height of the unevenness.
[*2] It is also possible to hold it as an option.
[*3] AC200V power supply specifications are also available as an option.  

Suitable for extra-thick wires (measurement diameter: Φ1mm to 130mm)

Model TM-6004A TM-6008
(TM-6004A)
(TM-6004B) TM-7003A TM-7009
(TM-7003A)
(TM-7003B)
(TM-7003C) detection direction 4 directions 8 chapters 3 directions 9 directions Measurement method Single-slit white tungsten lamp floodlight Applicable workpiece outer diameter φ1 to 75mm (up to φ90mm possible depending on conditions) φ1 to 100mm (up to φ130mm possible depending on conditions) unevenness detection range 0.2–10mm Accuracy of detecting unevenness Within ±2% of the maximum setting value Adaptive linear velocity [*1] 0.3~500m/min 0.5–100 m/min Recorder output ±0.1V/0.1mm (each axis) Alarm output LED illumination (concave: yellow / convex: red)
Relay contact output (AC250V 2A resistive load, separate output for concave and convex) Alarm duration [*2] 0.5 seconds Power supply [*3] AC100V 50/60Hz Power consumption 30VA 60VA 30VA 90VA

[*1] The line speed range changes depending on the height of the unevenness.
[*2] It is also possible to hold it as an option.
[*3] AC200V power supply specifications are also available as an option.

In addition, we also offer multi-axis compatible products such as the TM-6020, which supports 20 axes.