QC3000/QC6000 Sensadyne 表面張力試驗器

QC3000/QC6000

Sensadyne 表面張力試驗器

Sensadyne Surface Tensiometers

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供應商:大台北尖端儀器有限公司
聯絡電話:02-2531-0981
定價:與我們聯絡

快速詢價

12122

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Sensadyne 表面張力試驗器-行動條碼QR Code
SensaDyne的表面張力測定儀是先進的全電腦軟件控制操作的儀器,可測定液體的靜態與動態表面張力。SensaDyne的最大氣泡法的專利技術最早由Simon於1851年提出,後於1917年Jaeger發展出來。最大氣泡壓力測量法避開了任何可能導致測量的錯誤因素,它是在液體內測量,最簡單最直接也是最精確的方法。
 

Sensa Dyne表面張力測試儀是唯一商業測試儀器符合美國「動態表面張力測試氣泡技術方法ASTM Test Method D3825-90的標準」。


 

QC3000表面張力測定儀 Low Cost Tensiometer的詳細資料:

l   一般特點:

1) 符合ASTM D3825-90標準

2) QC3000是基本的張力測試儀,帶有獨立的氣泡流動控制器,可精確地測試廣泛的樣品

3) 設計緊湊,操作簡單、快速,結果精確

4) 得表() (Diffusion Time)

5 ) 最新軟體,自動校正功能;

 

l   技術特點:

1) 可調整的氣泡速率:最大:20次氣泡/S;最小:1 /120S

2) 可簡單按程式進行表面張力和溫度的校正

3) 可更換不同孔徑的獨立玻璃管,以精確調節氣泡速度

4) 表面活性劑的活性分子擴散率測定(從毫秒到分鐘)

5) 專利軟體進行精確檢測:精確度±0.15 Dynes/cm

 

QC6000表面張力測定儀 Mid Range Tensiometer的詳細資料:

 

l   一般特點:
1)
符合ASTM D3825-90標準;
2)
該儀器是中等範圍的張力儀,帶有獨立的氣泡流動速度控制器,擁有QC3000的基本特點,可更精確地測試更廣範的樣品;
3)
設計緊湊,操作簡單、快速,結果精確;
4)
它可獲得表面活性劑配方的相關數據,從而進行研發;
5)
可進行在線的環境分析;
6)
自動精確測定表面活性劑擴散率(Surface Age)測定(從毫秒到分鐘)
7)
最新軟體,自動校正功能;

l   技術特點:
1)
可調整的氣泡速率:最大:40次氣泡/s;最小:1次氣泡/120s
2)
可簡單按程序進行表面張力和溫度的校正(AutoCal)
3)
獨立可調節小和大的孔口,以精確調節氣泡速度;
4)
表面活性劑(Surface Age)擴散率測定(從毫秒到分鐘)
5)
專利軟體進行頂點檢測:精確度±0.1 Dynes/cm (mN/m)

應用:
A)
實驗室領域:
  1)
研發;
  2)
質量控制;
  3) Formulation
測試;
  4)
污染測試;
  5)
快速臨界膠束濃度CMC測試;

B)
工業領域:
  1)
質量監控;
  2) Formulation
檢測;
  3)
污染檢測;
  4)
間歇和連續測試能力;
  5)
三維界面活性劑/ Formulation特徵研究;
  6)
電鍍槽添加劑的檢測和控制;
  7)
清潔度確認;

用戶舉例:道化學Dow Chemical, 道康寧Dow Corning, 杜邦DuPont, 寶潔Proctor and Gamble, 寶麗來Polaroid, 羅氏Rhone-Poulenc, 孟山都Monsanto, 摩托羅拉Motorola, and 3M

 

 


 

 

Sensadyne Surface Tensiometers

 

Models QC3000 & QC6000

 

SensaDyne Tensiometers are the only commercially available instruments that replicate ASTM test method D 3825-90 Standard Test Method "Dynamic Surface Tension by the Fast-Bubble Technique"

 

  • Measure Both Dynamic and Static (Equilibrium) Surface Tension.
  • Allow Accurate, Continuous Real-Time Measurements.
  • Interface with Standard IBM & Compatible Computers.
  • Provide Computerized Data Collection& Graphing.
  • Operates with External Regulated Air, Nitrogen, or Inert Process Gas Supply
  • Very Simple Operation, Windows® based Software Program
  • Simple Menu-Driven Calibration Program

SensaDyne instruments can continuously monitor surface tension within fluid sample streams, using a flow-through cell arrangement. The measurement is taken within the body of the fluid and is unaffected by any surface contaminants. SensaDyne Tensiometers use a patented technology that is a refinement of the Maximum Bubble Pressure Method.

 

Bubble Pressure Method

 

The maximum bubble pressure method avoids error-causing effects by measuring surface tension within the body of the fluid. It is the "Simplest Accurate Method" for measuring surface tension. A comprehensive mathematical analysis of the maximum bubble pressure method can be found in U.S. Patent No. 4,416,148 (covering the SensaDyne technology).

Two probes having orifices of different diameters are positioned below the surface of the liquid. A pressurized process gas source forms bubbles in the liquid, and the differential pressure of the bubbles is measured and equated to the surface tension of the measured liquid. Unlike other maximum bubble pressure methods, the SensaDyne's patented double probe method allows complete independence of immersion depth, for accurate repeatable results.

The Tensiometer's pneumatic system provides constant volumetric gas flow, making the flow independent of down-stream pressure. Flow rate to each orifice is adjustable through external valves. This allows interface formation time (bubble rate) selection from up to forty or more bubbles per second to one bubble every two minutes. Bubble rate, surface age, fluid temperature and fluid surface tension are displayed on the computer's video terminal.

 

Temperature

 

The surface tension of a liquid generally increases as the temperature decreases, and vice versa. In the SensaDyne, a temperature probe is immersed in the fluid at orifice level to always provide a temperature reading with a resolution of 0.1 degrees C.

 

Computer Interface and Operation

 

SensaDyne Tensiometers interface to a personal computer using a plug-in computer interface board. The software program allows display, storage and collection of data, redisplay of stored files, and graphing of surface tension related data.

The unit functions as a computerized sensor with the ability to store real-time surface tension values, and provide visual displays of the monitored parameters. Each time a bubble is generated at the orifice, the SensaDyne makes a discrete surface tension measurement. This is output as a moving average surface tension value. If the process changes, the tensiometer readings will track the change. The instrument can be used for simple, quality control measurements or integrated into the most complex closed-loop process control system.

 

Calibration

 

The SensaDyne does not require a skilled, experienced technician for operation. Calibration is entirely a function of two known standard fluids and the surface tension values of each. The computer program calculates and stores the required calibration curve. Each step of the calibration procedure is displayed and operator-prompted on the computer terminal in a step-by-step sequence.

 

Model QC3000


Model QC3000

 

  • Adjustable bubble Rate:
    • Max: 25 Bubbles/Second
    • Min: 1 Bubble Every 120 Seconds
  • Compact Sensor Package
  • Compact Probe Assembly Stand with 5" (12.7 cm)
  • Vertical Adjustment and Built-In Laboratory Jack
  • Standard Non-Breakable Stainless Steel Probes
  • Accuracy within ±0.15 Dynes/Cm
  • Optional Vernier Handle Micrometering Valve

 

Model QC6000

 

  • Adjustable bubble Rate:
    • Max: 40 Bubbles/Second
    • Min: 1 Bubble Every 120 Seconds
  • Diffusion Rate Studies with Optional Software
  • Automatic Surface Age (Surfactant Diffusion) Determination
  • Software Peak Detection Accuracy within ±0.1 Dynes/Cm

Available Items

Item Number

Item

FT-6012

Model QC3000 Low Cost Surface Tension Monitor

FT-6026

Model QC6000 Mid Range Surface Tension Monitor

 

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