电子触觉测量仪

附加信息

特征	优点
最大力值是1000g	自动识别动物反应
刺激力分辨率为0.1g	用户可控制施力力率
同款设备可用于大、小鼠	原创三棱镜观测动物足底设计

  

38450 e-VF电子触觉测量仪配有如下部件

38450 - 001  电子单元,电源
38450 - 004  Touch-Stimulator换能器
38450 - 310  棱镜
38500 - 011  DCA软件(USB密钥)


38450 - 302  说明书(USB密钥)

所有组件配有专用的塑料盒

37450 - 005  足底刺激穿孔金属板
37450 - 278  足底刺激基础设备，穿孔金属板&动物外壳


包装规格重量： 

净重：1.4Kg

毛重：2.7Kg
包装规格：46 x38x27cm

 

Impaired cutaneous sensation is usually first manife­sted in a loss of light touch detection. The Electronic Von Frey was developed to quantify light touch in the laboratory animal.

The classic instrument for test of touch sensitivity is the Von Frey hair or, more specifically, the Semmes- Weinstein set of Von Frey Hairs, i.e., 20 monofilaments in a linear scale of physical force.

The hair is pressed against the skin, the force applied increases with incre­asing hand pressure, until the hair bends; once the hair is bent, increasing hand approach causes further bend, but negligible additional force on the skin. In this way, a given filament always applies the same force, not subject to variation by the energy of the operator.

The Semmes-Weinstein set can be used on rodents (which respond to light touch of the paw, if they feel it, by a paw withdrawal reflex). However, the involved proce­dure is tedious and time-consuming because several stimulations must be performed for a single test (i.e. a different filament for each force level).

Compared to the classic Von Frey Hairs, the Electronic Von Frey device (e-VF) has the advantage of ensuring a continuous force application along the whole force capacity of the sensor (i.e. 1-1000 gf), by using a rigid metal tip, and the capability to record the animal response automatically.

Moreover, the metal tip used in the e-VF is the same as the one used in the classic Ugo Basile Dy­namic Plantar Aesthesiometer (PN 37450), allowing consistent comparison of results among the two instru­ments.

38450	电子触觉测量仪
38450-001	电子元件
38450-004	手持刺激器
	38450-310  菱形镜
	38450-330  顶针
38450-323	附加触发器（脚踏板）
52010-325	连接线
E-AU 059	万能电源
E-AU 041	USB
	38450-302      安装说明书
	DCA              软件


 

 

 

{module Bibliography on 38450}