Foot current was measured in radio frequency (RF) heater operators in relation to operator hand position and workstation furniture. The study examined two dielectric heaters, each having a parallel plate applicator and being used to produce plastic waterbed mattresses. Four workers operated one heater and two operated the other. The operator's hand and upper torso positions strongly influenced the foot current under the conditions of reactive field coupling. Foot current was effectively reduced when the hands of the operator were in his or her lap. No measurable effect on foot current was noted by the use of different types of low loss dielectric stools (wood or plastic). A large spatial variation over the body of the operator was noted for field strength exposures. The authors recommend that industrial hygienists determine the dependence of foot current on common hand and upper torso positions in an effort to obtain meaningful exposure evaluations for heater operators. The authors conclude that operator foot current can be reduced by keeping the hands and torso as far away from the RF heater as practical. Physical barriers may be helpful in this regard.
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.