1. 界面科学測器の協和界面科学
  2. Kyowa Interface Science
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  5. DMo series

DMo series

DMo series

DMo-502: manual droplet deposition

DMo series

DMo-602: automatic droplet deposition

DMo series

DMo-702: automatic droplet deposition and stage with automatic x-axis

DMo series

DMo-602: with optional multi manual dispenser

DMo series

DMo-702: with optional multi automatic dispenser

DMo series
DMo series
DMo series
DMo series
DMo series

Each model combines the following features

  • Fast image capturing system with standard 400 fps at 640x480 resolution USB3.0 CMOS camera, max. 1000fps at 640x200 resolution
  • Automatic single dispenser system
  • 150x150mm wide sample stage with a maximum load capacity (temperature chamber + sample) of 1.4kgs
  • Stage travel distance: x-axis: 150mm, y-axis: 75mm, z-axis: fixed
  • Focusing aid with displayed index graph and value and brightness adjustment to achieve perfect focus
  • Movie converter to convert data images to MPEG-1 or AVI movie format
  • Determination of contact angles, droplet volume, residual droplet volume, sessile drop volume, height and radius of sessile drop
  • Measured results are displayed in a spreadsheet for easy reference and comparison, and saved in csv format for easy export to and manipulation in MS Excel
  • User-specified analysis report function, providing measurement results and parameters
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

The following table describes the differences between the measuring process of each model

The following table describes the differences between the measuring process of each model
DMo
model
Positioning of first measurement Generation of droplet Deposition of droplet (control / recognition) Analysis of droplet Positioning of next measurement Full-scale continuous measurements
502
by rotary knob
▲ / ●
602
by rotary knob
● / ●
702
by command button
● / ●
902 ● / ●

▲ manual ● automatic

  • Automatic recognition of drop deposition by FAMAS analysis software
  • Live image display and droplet volume monitoring
  • Movie converter
  • Manual dispenser with a set of 5 glass syringes and 5 SUS needles for precise adjustment of droplet volume and quick refilling and replacement of liquid samples
  • Fine adjustable stage in x- and y-axis for exact positioning
  • Adjustable level of the body and stage
  • Droplet calibration standard for standard view, bearing one full circle for calibration and three droplet silhouettes of 5°, 60° and 108° for periodic inspection of measurement accuracy

Hardware

  • Jacket and heater type chambers for temperature measurements from +10 to +380°C 1)
  • Heater type dispenser for temperature measurements from ambient to +380°C 1)
  • Tilting stage for measurements of roll-off angles, incl. FAMAS software add-in [Sliding method] 1)
  • Add-on module [Dynamic sliding method] for measurement of roll-off speed and roll-off acceleration. Only in combination with tilting stage package. 1)
  • Multi manual dispenser holder
  • Multi automatic dispenser system
  • Large capacity pump dispenser, incl. a 50ml liquid container
  • Surface free energy kit
  • Pendant drop kit (for standard & wide view)
  • Kit for captive-bubble-measurements
  • Droplet calibration standard (for wide 1 view)
  • Pendant drop calibration standard (for standard view)
  • Pendant drop calibration standard (for wide 1 and wide 2 view)

1) This option is unavailable for the model DMo-902

  • Determination of wettability of surfaces like glass, metal, plastics, ceramics at ambient temperature
  • Surface cleanliness
  • Determination of surface and interfacial tension using the Pendant drop kit (standard and wide view)
  • Analysis of Surface free energy of solids
  • Determination of dynamic contact angles (advancing/receding angles and roll-off angle)
  • Coating property, Repellency, Characterization of droplet hysteresis
  • Initial spreading, absorbing property, effect of surface active agents
  • Adhesive property, characterizing surface modification, digitalization of hydrophilicity/hydrophobicity
  DMo-902 DMo-702 DMo-602 DMo-502
Camera system



USB 3.0 CMOS camera with:
400fps at 640x480 pixels
500fps at 640x400 pixels
1000fps at 640x200 pixels
Optical system

focus: manual focus with 3 step manual zoom
field of view: 6.1x4.7mm, 11.1x8.2mm, 15.8x11.8mm ±6%
Measuring methods


contact angle: sessile drop (static), advancing/receding angle (dynamic) sliding angle (dynamic) 1)
surface/interfacial tension: pendant drop (static and dynamic)
Analysis methods



contact angle: θ/2, tangent, curve fitting (ellipse, circle)
surface/interfacial tension: Young-Laplace, ds/de
surface free energy of solids: Owens-Wendt, Kaelble-Uy, Kitazaki-Hata, Wu, acid-base, Zisman
Measuring range

contact angle: 0.01 to 180°
surface/interfacial tension: 0.01 to 100mN/m
Resolution

contact angle: 0.01°
surface/interfacial tension: 0.01mN/m
Accuracy2)

contact angle: 0.2°
surface/interfacial tension: 0.2mN/m
Maximum sample surface area and height (WxDxH) 150x150x16mm

150x150x35mm

Sample stage operation:
X-axis
Y-axis
Z-axis
Rotation axis

150mm (aut.)
75mm (aut.)
---
360° (aut.)

150mm (aut.)
75mm (man.)
---
---

150mm (man.)
75mm (man.)
---
---
Dispenser operation:
Z-axis
Droplet deposition
Droplet generation
Droplet resolution

16mm
automatic
automatic
0.1μl
35mm
automatic
automatic
0.1μl
35mm
manual
automatic
0.1μl
Dimensions (WxDxH) of:
Main instrument
Control box

297x544x305mm
290x240x86mm

288x544x305mm
260x200x70mm
Approximately weight of:
Main instrument
Control box

10.0kg
4.3kg

8.5kg
4.3kg

7.5kg
1.5kg
Electric power:
Voltage
Frequency
Power consumption

AC100-240V
50/60 Hz
115W 120VA

AC100-240V
50/60Hz
25W 48VA
Operating environment

temperature: +10 to +35°C, humidity: 30-80%RH (non-condensing)
positioned away from sources of electrical noise and vibration

1) An optional external tilting stage is required
2) Accuracy is the repeatability in terms of standard deviation based on the manufacturer’s calibration standard

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