Radio environment Sample Clauses

Radio environment. This section summarizes the results from tests performed to investigate the electromagnetic en- vironment at a conveyor belt transporting iron-ore pellets at “malmhamnen” in Lulea˚ during early 2015. The tests were conducted at the location shown in Fig. 3, the belt going up to “siktfickan”. • A Rohde&Schwarz ESPI Test Receiver used for measurements on the electromagnetic environment. It was switched between an EMCO 6512 loop antenna for the 50 kHz-30 MHz band and an AARONIA Hyperlog antenna for measurements between 800 MHz and 6 GHz. • A ▇▇▇▇▇ B4200 125 kHz RFID-reader provided by Electrotech. This reader was modified to enable measurement of the excitation and the resulting coil voltage. It was also modified by Electrotech to account for that the coil antennas have inductances different from what the reader was designed for. • A Ettus Research N210 digital sampler used for digitizing the output signals from the RFID- reader. In addition, a portable magnetic field probe (Fig. 5) using the same type of 3D coil anten- nas intended for direction-insensitive pellet-size RFID-tags was built and used for measuring the magnetic field generated by the coil antenna. • Magnetic field strength at 10 positions along the length of the conveyor belt. • Magnetic field strength at 9 positions over the belt, in the approximate volume where pellets can be expected. • Responses from both large and small RFID tags were recorded using the digital sampler for 9 positions (only the large tags) within the volume where pellets can be expected. The response was detected in terms of the cross-correlation between the known response and the measured complex ratio between coil voltage and excitation (to suppress some of the noise in the excitation signal). • Ambient magnetic field strength in the 50 kHz-30 MHz band and ambient electromagnetic field strength in the 800 MHz-6 GHz band. These measurements were performed both with the conveyor belt stationary and with the belt running without pellets. • Modulation of the received signal due to motion of magnetic material or the antenna. This test was performed with the belt stationary, and in motion both with and without pellets. Figure 5: The 3-dimensional magnetic field probe used for measuring the magnetic field in the vicinity of the RFID antenna. 10−4 10−5 Field strength (T) 10−6 10−7 30.9 dB and 37.3 dB with an average of 33.5 dB. As the field was believed to be too weak to power the small tags only one test was performed at the pos...
View Source

Related to Radio environment

  • Work Environment It is mutually agreed that the prevention of accidents and injuries to state employees will result in greater efficiency of operations of state government. Toward this end, the Employer shall make every reasonable effort to provide and maintain safe and healthy working conditions and the Union shall fully cooperate by encouraging all employees to perform their assigned tasks in a safe manner.

  • NON-SEXIST ENVIRONMENT 1. A non-sexist environment is defined as that in which there is no discrimination against females or males by portraying them in gender stereotyped roles or by omitting their contributions. 2. The employer does not condone and will not tolerate any written or verbal expression of sexism. In September of each school year the employer and the local shall jointly notify administrative officers and staff, in writing, of their commitment to a non-sexist environment. 3. The employer and the local shall promote a non-sexist environment through the development, integration, and implementation of non-sexist educational programs, activities, and learning resources for both staff and students.

  • Working Environment The parties agree that a safe and clean working environment is essential in order to carry out work assignments in a satisfactory manner. The Employer commits to investigate the use of environmentally friendly products. It will be the Employer's responsibility to ensure that all working areas and employer-owned vehicles are maintained in a safe and clean condition.

  • Operating Environment Per specifications given in Ref. [1]

  • HEALTH, SAFETY AND ENVIRONMENT In the performance of this Contract, Contractor and Operator shall conduct Petroleum Operations with due regard to health, safety and the protection of the environment (“HSE”) and the conservation of natural resources, and shall in particular: