The objectives of this research are to design the load cell tolerance testing machine and demonstrate the tolerance of load cell with a tolerance test that has a beam length of 90 cm. It can create the compressed force at the load cell more than 1 kN The experiment cam be divided into 2 stages; 1.) verification of load range and 2.) linearity test. Both stages are tested at a temperature at 25°C using 10 to 30 kg of mass in the lowest compressed force condition of 0.091 kN and the maximum compressed force condition of 1.12kN As a result the linearity performance of the tolerance of the load cell test kit between calculated force and displayed value force are different 0.354 percentage only while the standard deviation of displayed value force and voltage signal output are 0.0013 and 0.0022 respectively. It reveals that the experimental result is reliable because of less than 1. In addition the tolerance of the load cell tolerance testing machine is 0.00300 (0.3 percent) which was calculated from the comparison of the tolerance specification of two main equipment that specified by manufacturer.

The application of integrated energy use in the agriculture sector It is presented in the form of using renewable energy from solar energy to produce electricity to use in conjunction with other sources of electricity such as generators or electric power systems. Using solar panels or solar cells the size and number of panels does not exceed 300 watts 4 panels and the electrical system of the electrical system. Supply electric power to the water pump size does not exceed the rating of 1500 watts 220 volts. Solar power supply systems alone may be affected by weather conditions or electrical power supplies. Including the quality of electricity obtained from solar energy and will result in the water pump not working efficiently. Therefore the application of solar energy by using a power supply system from 2 sources by using a hybrid inverter device to select the power supply from the solar cell is the main power and the power supply from the memory system is the backup power. Therefore a research project on the application of solar water pumps in a mixed system for agriculture is proposed to increase the efficiency of electric power distribution. This application of solar water pump hybrid system for agriculture when used with water pumps can normally help to save electricity and can also use solar energy instead of using electricity to pump water. Let the water pump and can work efficiently.

This research aims to study and compare the test results obtained from the rolling resistance tester of automobile tires based on force method and torque method system. The four newly manufactured tires were sampled from two tire classes namely passenger car tires (Class C1) and light truck tires (Class C2). The tire rolling resistance test according to the international standard UN ECE Regulation No.117 was used as an important research process. The experimental work discovers that the rolling resistance of the same tire obtained from the test between the two different methods of testing machines was not more than 6 percent different. The testing results that used the torque method system calculation are high reliability because of the principle of calculation from the measurement value directly results in. and suitable for research testing. However the force method tester can perform more than a tire simultaneous test which is suitable for working in industrial applications where time is limited.

The objectives of this research is to study the relationship between tolerance and measurement range of load cells. Tolerance test kit length of mass beam 90 cm was used. It can create the compressed force at the load cell more than 1 kN. The experiment cam be divided into 2 stages; 1.) verification of load range and 2.) linearity test. Both stages are tested at a temperature at 25°C using 10 to 30 kg of mass in the lowest compressed force condition of 0.091 kN and the maximum compressed force condition of 1.12kN As a result the linearity performance of the tolerance of the load cell test kit between calculated force and displayed value force are different 0.354 percentage only while the standard deviation of displayed value force and voltage signal output are 0.0013 and 0.0022 respectively. It reveals that the experimental result is reliable because of less than 1. In addition the tolerance of the load cell tolerance testing machine is 0.00300 (0.3 percent) which was calculated from the comparison of the tolerance specification of two main equipment that specified by manufacturer.

This research aimed to study students opinions towards the Cheer and Admission Conference and present a creative recruitment model for students of the Faculty of Science and Technology Rajamangala University of Technology Phra Nakhon. The sample group was undergraduate students of The Faculty of Science and Technology Rajamangala University of Technology Phra Nakhon with 376 students studying in 2019. The data collection tools were questionnaires of students opinions on the activities. Cronbachs alpha coefficient was used to examine the whole questionnaires reliability yielding a value of 0.83. A statistical package for analyzing data collected from January to February 2020 was used with the statistics mean standard deviation t-test and one-way analysis of variance (ANOVA). The research results found that: 1. The Pros and Cons of students’ opinions on the freshman orientation activities and cheer meetings were that freshmen get to know friends and seniors; freshmen are afraid of juniors and seniors. 2. Male and female students had different opinions about organizing activities for freshman recruiting and cheered meeting. 3. Students studying in different disciplines had no different opinions on organizing new freshman activities and cheer meeting. 4. Students studying in different year levels had the same opinion on organizing new recruiting activities and cheer meeting. 5. Features of the creative recruiting activities format are as follows: 5.1 It is an activity that gives importance to safety and respect for personal freedom. 5.2 It is the responsibility of the Faculty to closely watch this field of study 5.3 It is an activity that promotes pride in being a student at the university. 5.4 It is an activity that helps students to adjust to university life and aims to foster a good relationship between students seniors and juniors. 5.5 An outside activity must be an event organized by a faculty or university department only.