Tensiometer/动态气泡压力张力仪

仪器简介：
New development based on more than 10 years of experience in bubble
pressure measuring technique. Many new instrumental details have been
published recently, such as the determination of bubble time
characteristics from the gas flow signal.
Four different measuring modes available.
Process controlling option on board.
BPA-1P is the simplified version of the BPA-1S representing the high end
instrument in bubble pressure tensiometry.
Two different displays - text or graphic - available.

软件
BPA-1P operates as stand-alone instrument. It
stores data on board for 180 measurements.
Data download from the instrument to a PC via
RS-232 or USB port. The software allows
graphical display of several measurements for
comparison. Graphics with various zoom
functions supports the visual analysis of the data.
Export as text file or directly into MS Excel.

应用领域
表面科学
制药
喷墨印刷
化妆品
镀膜科学
食品技术
foam and emulsion technology medicine and biology
detergency ecology

技术参数：
表面和界面应力测量范围: 10 to 100 mN/m;
测量结果的重复精度: ± 0.1 mN/m
表面张力测量精度： ±0.25 mN/m
动态时间范围： 10 ms 至 10 s
显示：
- 文本显示： 4 x 20 字符
- 图形显示： 黑白 320 x 240 像素
最小测量试样体积： 1 ml
温度范围： 室温

实验测量时间:
- 标准模式 (M1) 20-30 分钟
- 快速模式 (M4) 4-6 分钟
软件 视窗软件
测量点:
- 所有扫描模式(M1, M3, M4) 最大180
- 常数模式(M2) 最小30000
板上内存 2 MB
处理控制选项 on board (可选功能)
仪器尺寸(L x W x H):
- 测量组件 70 x 110 x 200 mm
- 三脚架 60x180x300 mm
重量:
- 测量组件 1 kg
- 三脚架 2 kg
电源需求:
- 测量组件 12 V直流
- 供电电源 100…240V交流; 50…60 Hz
- 最大电源功耗 6瓦
外置电池(可选项) 最小运行时间5小时
额外附件 各种直径的毛细管
temperature control jacket for 0… 80 °C

主要特点：
特色
! direct and precise measurement of dead time and life time
! surface tension as function of physical time and adsorption time
! available time interval of 3 orders of magnitude (0.01 to 10 s)
! precise measurement of correct dynamic surface tensions
! direct determination of the hydrostatic pressure via automatic capillary
immersion
! correction of effects from gravitation and viscosity of the liquid
! temperature monitoring of the sample
! can be used as stand-alone device