3.6.2　Experimental instruments

3.6.2　Experimental instruments

The liquid surface tension coefficient tester(or named as the ring tensiometer)contains a digital voltmeter,silicon piezoresistive force sensor,lifting ring,plate weights(0.5 g),hanging plate,culture dish and tweezers,as shown in Figure 3.6.1.In addition,the lifting ring used in this experiment is displayed in Figure 3.6.2.It should be highlighted that the hook of the ring will be hung on the silicon piezoresistive force sensor during operation.

Figure 3.6.1　The schematic diagram of the liquid surface tension coefficient tester(https://www.daowen.com)

1—Silicon piezoresistive force sensor;2—Lifting ring;
3—Culture dish;4—Target liquid;5—lifting screw

Figure 3.6.2　Schematic diagram of ring-type lifting ring