FIELD: physics.
SUBSTANCE: alarm has a housing and a power supply. The housing contains series-connected sensor, voltage comparator unit and a measurement-signalling device. The voltage comparator unit is made on a lambda diode equivalent and the housing is sealed and made from electroconductive optically transparent polymer material.
EFFECT: reduced input current, increased reliability and explosion-fire safety, wider functional capabilities of the alarm.
16 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HOME METHANE ALARM | 2011 |
|
RU2488812C2 |
| ELECTRIC IRON NO-MOVING WARNING DEVICE | 1992 |
|
RU2051473C1 |
| TROLLEYBUS LEAKAGE CURRENT INDICATOR | 1996 |
|
RU2099207C1 |
| GAS LEAKAGE AUTOMATIC DETECTION AND CONTROL SYSTEM | 2017 |
|
RU2666324C2 |
| STATIC FREQUENCY, VOLTAGE, AND PHASE CONVERTER | 2006 |
|
RU2311717C1 |
| CONTROL SYSTEM FOR TRANSPORTING DANGEROUS GOODS (SC-TOG) | 2015 |
|
RU2661076C2 |
| POWER SUPPLY SYSTEM AND DEVICE OPERATED BY POWER SUPPLY SYSTEM | 2002 |
|
RU2239931C2 |
| SELF-CONTAINED FIRE ALARM SYSTEM | 2013 |
|
RU2534959C2 |
| ELECTROCONDUCTIVE MATERIAL LEVEL INDICATOR | 0 |
|
SU1015255A1 |
| MOBILE MONITORING DEVICE (DESIGN VERSIONS) | 1991 |
|
RU2134908C1 |
