FIELD: measurement and control over air humidity in wide interval of temperatures, temperatures below 0 C included. SUBSTANCE: analyzer incorporates humidity sensor- metal wire heated by highly stabilized electric current and placed into space of measurement cell which temperature is stabilized. Voltage across sensor is compared with reference voltage and difference signal is amplified by linear differentiating amplifier across which output recorder calibrated in units of absolute air humidity is placed. EFFECT: raised sensitivity, exclusion of errors introduced by variations of ambient temperature, simplified calibration, widened functional capabilities. 2 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING PARAMETERS OF GASEOUS MEDIUM AND APPARATUS FOR REALISING SAID METHOD | 2010 |
|
RU2438121C1 |
| INSTRUMENT FOR MEASURING AIR HUMIDITY | 2002 |
|
RU2251129C2 |
| DEVICE FOR MEASUREMENT OF ELECTRIC POTENTIAL OF CHARGED SURFACE | 0 |
|
SU1798736A1 |
| METHOD AND DEVICE FOR DETERMINATION OF HUMIDITY OF CAPILLARY AND POROUS MATERIALS BY PULSE DYNAMIC CHARACTERISTICS | 2013 |
|
RU2552603C1 |
| METHOD FOR MEASURING OF ALTERATION OF SURFACE POTENTIAL | 1999 |
|
RU2156983C1 |
| METHOD FOR MEASURING OF DIELECTRIC PENETRABILITY OF LIQUID AND FLAT SOLID DIELECTRICS | 2006 |
|
RU2303787C1 |
| METHOD FOR MEASUREMENT OF PARAMETERS RESIDUAL CHARGE OF FLAT DIELECTRICS | 2003 |
|
RU2231804C1 |
| DEVICE FOR MEASURING ELECTRIC SKIN RESISTANCE | 1999 |
|
RU2173537C2 |
| DEVICE FOR MEASURING OF ELECTRODERMAL RESISTANCE | 1996 |
|
RU2121294C1 |
| METHOD OF MEASUREMENT OF ACTIVE POWER OF LOAD IN AC ELECTRIC CIRCUITS | 2005 |
|
RU2296338C1 |
