Air velocity, air temperature and relative humidity were measured by wireless hot wire anemometers (testo405i, Schwarzwald, Germany) and a wireless air temperature and relative humidity measuring instrument (testo605i, Schwarzwald, Germany) at 4 locations (Figure 1 b). The measuring points were 0.6 m above the floor. During the experiment, a set of data was collected every 2 h from 8:00 to 18:00 per day. The air temperature, relative humidity and air velocity at the measuring point in Figure 1 were measured. The research assumed that the difference between different measuring points in environmental parameters is linear, and the environmental parameters were determined at different locations based on this assumption. Finally, the environmental conditions of sows were determined.
Testo605i
Manufactured by Testo
Sourced in Germany
The Testo605i is a compact, handheld thermohygrometer. It measures and displays temperature and relative humidity. The device features a wireless Bluetooth connection for data transfer to a smartphone or tablet.
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Lab products found in correlation
3 protocols using testo605i
1
Measuring Environmental Conditions for Sows
2
Field Measurement Instrumentation Protocol
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Most of the instruments used in field measurement are portable, hand-held instruments. The testo605i wireless temperature and humidity measuring instrument were used the temperature measurement of the air; the testo835-T2 high-temperature infrared thermometer and the testo865 infrared thermal imager were used the temperature measurement of the walls and the surface of the equipment in the workshop. The wind speed is measured using the testo405i wireless mini hot-wire anemometer, and the TSI 8534 inhalable particle analyzer is used to determine the particle concentration in the factory. The rangefinder is used to determine the location of the measuring point. The measurement range, accuracy, measurement technology, and specific implementation standards of each instrument are shown in Table 1.
3
Solar-powered Drying Process Characterization
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The global solar radiation was recorded using a pyranometer (Kipp & Zonen-CMP6). The RTD (PT-100) type temperature sensor was used to measure the temperature readings at different positions of the experimental set-up. Ambient air, dryer inlet air, and dryer outlet air relative humidity were recorded by a thermo-hygrometer (Testo-605i). The air velocity in the different positions of the experimental set-up was measured using a hot wire anemometer (Testo-405i).
The digital balance (Wensar-TTB3) was used to check the product weight at every 15 minutes interval. The data collected by the various instruments were recorded in the data acquisition system (DataTaker-DT85). Table 2 summarizes the measured parameters and instrument specifications recorded by the various instruments during the experiments.
The digital balance (Wensar-TTB3) was used to check the product weight at every 15 minutes interval. The data collected by the various instruments were recorded in the data acquisition system (DataTaker-DT85). Table 2 summarizes the measured parameters and instrument specifications recorded by the various instruments during the experiments.
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