Skin conductance tester

Skin conductance tester/Skin Electrical Experiment Device/Skin Electrical Detection DeviceH18408

1. Overview

An instrument for measuring skin conductance response, also known as heart The mechanism of electrokinetic reflex is the relaxation of blood vessels in the skin during emotional states Changes in skin resistance caused by contraction and secretion of sweat glands Transformation,Skin conductance testerIt is used to measure the emotional response of plant systems.

2、 Technical performance

1. Test display range: 0- ± 50 μ A

2. Sensitivity: ＜ 10mV

3. Can be used for both AC and DC

3.1 AC power supply: AC220V ± 22V 50HZ

3.2 DC power supply: Two DC9V stacked batteries

4. Environmental temperature: 0-40 ℃

3、 Working principle

There is skin resistance in various parts of the human body surface, and when a person is exposed to external factors Stimulus can cause emotional changes, resulting in a change in resistance on the skin when exposed to external stimuli When an electromotive force is applied (sent out by the machine), there is a potential between the two points Change, of course, this potential is weak, and this instrument is designed to detect this subtle change The potential difference is amplified by a low-noise and high amplification circuit, and then reflected in On the electricity meter, let the subject know that there has been an emotional change in a certain thing.

2.Spatial Perception Tester Perception tester Spatial perception detector H18407

1. Overview:

Spatial perception is a type of human re perception (time perception, spatial perception), which is an individual's reflection of the spatial characteristics of external things. Including perception of size, shape, distance, depth, orientation, etc., spatial perception is mainly formed through the collaborative activities of vision, hearing, kinesthetic perception, balance perception, etc., and is assisted by the experience gained through practice, with vision playing a dominant role in it.

The spatial perception tester is the ability of individuals to distinguish spatial characteristics based on the visual recognition process of shape and orientation in spatial positions. We have selected 12 types of graphics for experimentation to choose from. For the convenience of users: Please read the instruction manual carefully before use. And operate according to the instructions.

Digital timer (user manual section)

A timer is a supporting instrument designed for psychological instruments, used to time the entire process of an experiment, and is a timing instrument for spatial perception testing instruments

The timing counter adopts the imported 89C51 single-chip computer integrated circuit from abroad, and uses a quartz crystal with a stability of 10-8 and a frequency of up to 12 megahertz as the time base oscillator, so it has a relatively high timing accuracy. Therefore, the timing counter meets the requirements of researchers studying psychology.

1、 Technical indicators:

1. Timing range: 0.00~9999.99 seconds

2. Timing accuracy: 10-4

3. Display error: ± 1/100 seconds

4. Counting delay: 100 milliseconds

5. Power supply: AC 220 ± 22 volts

6. Power consumption: 5 watts

7. Volume: 100 × 50 × 150MM3

3.Desktop grinding machine/Grinding machine/single disc grinding machineH18406

Main technical indicators of the equipment:
1. Grinding disc diameter: Φ 150mm (single disc made of stainless steel material);
2. Grinding disc speed: 50-500r/min (stepless speed regulation);
3. Power supply and output: AC220V/550W

4.Double disc desktop grinding machine (stepless speed regulation type)）/Desktop grinding machine/grinding machineH18405

1、 Double disc desktop grinding machine (stepless speed regulation type)

2、 The main technical parameters are as follows:

1. Grinding disc diameter: Φ 230mm (double disc);

2. Grinding disc speed: 50-500r/min (stepless speed regulation);

3. Power supply and output: AC220V/550W;

5.Spatial Position Memory Breadth Tester/Memory Span/Spatial Position Memory Span TesterH18404

I. Overview

Spatial position memory breadth as a psychological indicator of spatial orientation perception Biao refers to an individual's ability to distinguish spatial orientation and short-term memory. This indicator is applicable to professionals such as drivers, athletes, and related personnel It holds significant importance. The spatial position memory breadth tester is used to measure this index Biao provides a good means and science for distinguishing differences between individuals basis. This instrument uses matrix bright spots as the target stimulus, and through setting Under the condition of rapid time display, measure the subjects' perception of randomly distributed bright spots in spatial position Point memory breadth.

2、 Technical parameters

1. Number of spatial stimuli: Distribution of bright spots at 16 positions in a 4 × 4 square matrix, randomly presented

2. Display screen area: 120 × 120 mm2

3. Quick display time: 0.01 seconds to 9.99 seconds

4. Response keyboard: shared with laser

5. Dimensions: Host 300 × 220 × 70mm3

Keyboard area 125×70×30mm3

The above parameter information corresponds to the image