Female warm body dummy

Product description.

 

The warm body dummy is a completely realistic simulation of the human body, even including details of the fingers as well as the face. Nearly 700m of pure nickel wire is placed inside the dummy from the fingers to the nasal cavity, and independent intelligent circuitry ensures the accuracy of the measurement process. The internal circuitry in each part only ensures the accuracy of the measurement, and the built-in heat conduction system ensures good uniformity. Also the dummy can be divided into two parts for easy transportation.

　　

Product Features.

The thermal human model system (warm body sweating dummy) is used to evaluate the overall thermal and wet comfort of the garment and to provide accurate and effective test data for the study of heat damage protection technology in mines and the analysis and identification of heat damage accidents in metal and non-metal mines.

 

The warming dummies can be divided into two categories.　　

1、Segmental warming dummy

Most warm body dummies consist of multiple segments controlled separately by temperature and measurement systems (although the purpose is to quantitatively describe the overall heat transfer performance), and the surface temperature of all segments can be controlled at the same temperature level (34°C), or the surface temperature of the segments varies, with the extremities at a lower temperature than the head and torso. This warm body dummy can give the relative heat loss of each segment under certain ambient conditions, and measure the thermal resistance and evaporative impedance values of each segment. However, most multi-segment warming dummies have internal heat transfer from one segment to another and heat flow between segments within the garment layer - these will affect the accuracy of the local resistance values. In addition, for multi-segment warm dummies, two different methods of calculating the thermal resistance of the garment have been used.

① Integral method. First, the heat loss of each segment is summed, the body surface temperature of each segment is weighted by area, the surface area of each segment is summed, and then the total thermal resistance of the garment is calculated.

②Partial method. The thermal resistance of each section of the garment is calculated first, and then the total thermal resistance of the garment is obtained by weighting the body surface area of each section of the warm dummy. [7] The local method often gives higher values of thermal resistance, and the thermal resistance obtained by the local method varies widely due to the uneven distribution of the thermal resistance of the garment on the body surface. [8-9] When a section, such as the abdomen, is relatively better adiabatic than other sections, its heat loss will be very low or close to zero, resulting in the measured local thermal resistance value is too high, then the total thermal resistance calculated with the local method is high.　　

2, movable warm body dummy

In most cases, people use a warm dummy in a standing position, but more and more researchers are combining the warm dummy with an external automatic device to measure the garment thermal resistance with a walkable warm dummy. [10-13] Movement in both cases increases the convective heat loss and decreases the thermal resistance of the garment. The thermal resistance at this point is called dynamic thermal resistance. The international standard ISO 15831 gives a test procedure for measuring dynamic thermal resistance with a walkable warm body dummy. Few laboratories have used walkable sweating dummies.

 

Product details.

The warm dummy is a completely realistic simulation of the human body, even down to the fingers and details of the face.

Nearly 700m of pure nickel wire is placed inside the dummy from the fingers to the nasal cavity, and independent intelligent circuitry ensures the accuracy of the measurement process.

The intelligent circuitry inside each part ensures the accuracy of the measurement and the built-in heat conduction system ensures good uniformity.

Also the dummy can be divided into two parts for easy transportation.

 

Technical/performance parameters.

Conformity to standards.

ISO 15831, ASTM F2370-05, ASTM F2371-05, EN 13537, EN 342 and other standards.

 

Body shape and size conform to human physiological and anatomical characteristics:.

1、#Model size: the model is the average height of Asian male.

2、#Standard measurement area: 22 independent control of thermal energy area

3、Zone area: head-1391cm2, forehead-1880cm2, back-1780cm2, abdomen-hip-1808cm2, thigh-1696cm2×2, calf-1203cm2, foot-572cm2×2, arm-1234cm2×2

Connection: Seams at the shoulder, hip, knee, elbow and ankle joints

5、Weight about 30 kg

6、# Standard clothing size M.

7、Center temperature variation range: 37±0.1℃.

8, the whole body heating wire and wired temperature and humidity sensors (including temperature sensors 18, humidity sensors 18) can accurately control and measure the skin temperature, temperature sensor accuracy ± 0.1 ℃, humidity sensor accuracy: ± 3%

9, the maximum heating power under normal conditions 1200W/㎡ (dry and wet state).

10, in the case of wet skin can also be used.

11, the use of environmental requirements: temperature -50 to 150 ℃, humidity 0 to 100%.

 

Temperature system.

1、Range: 0-55℃

2, # accuracy: ± 0.1 ℃

3、System default: 37℃

4, the maximum temperature difference between adjacent areas: 3 ℃

5、Standard temperature measurement area: 22 independent control of the thermal area

6、Heating method: heat sheet type (uniform and stable) or extremely stable electric heating wire

7, measurement method: wired sensor measurement, deep into the skin surface 0.5mm below, protected by a high conductivity fine epoxy copper.

8, control mode: independent electronic control within the human body to ensure accurate maintenance.

 

Sweating system.

1, sweating method: removable fabric skin layer

2, # humidity: control accuracy ± 3%, resolution 0.1%

3, sweating rate: custom, adjustable

4、Sweat preheating: built-in

5, sweating volume: 0-600g/m2?h

 

Monitoring system.

1, including a computer, software control system, monitoring system

2, computer control and analysis software can control and real-time monitoring of the normal operation of the above components in the collection of data and further calculation, real-time display of test results (clothing thermal resistance value, clothing wet resistance value, clothing moisture permeability, clothing clo value, etc.), to provide data analysis, data storage and printout functions; analysis software to provide thermal resistance value, wet resistance value, clo value, moisture permeability and other results; the entire system can test indicators are The whole system can test the following indicators: dynamic (static) state thermal resistance value and moisture resistance value, and realize the dynamic storage and reproduction of process parameters such as temperature, humidity, power, water circulation, sweating volume, etc.

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