| U.S. Department of Labor | ![]() |
|||||
| Occupational Safety & Health Administration | ||||||
|
Metal Oxide Semiconductor (Solid State)
Selectivity is poor, but it can be modified slightly by changing the operating temperature and by doping the tin oxide with various elements. The chief limitations concerning use of this kind of sensor are the difficulty in the interpretation of positive readings, the potential for false positive alarms, and the effects of humidity on sensor output. As humidity increases sensor output increases as well. As humidity drops to very low levels, sensor output may fall to zero even in the presence of gas. |
| www.osha.gov | www.dol.gov | |
|
Contact Us | Freedom of Information Act | Customer Survey Privacy and Security Statement | Disclaimers |
||
| Occupational Safety & Health Administration 200 Constitution Avenue, NW Washington, DC 20210 |
||