static test system for detection of toxic gases with piezoelectric crystals.

摘要

STATIC TEST SYSTEM FOR TOXIC GAS DETECTION WITH piezoelectric crystals. BASED ON THE ESTABLISHMENT OF TWO SENSORS Piezoelectric WITHIN a test chamber (1), assisted by a vacuum pump (3) A BULLET FOR NITROGEN (4), a power supply (2) and a digital multimeter (5), SENSORS piezo said chamber TEST (1) associated with or connected to a FREQUENCY COUNTER (7) through a duplexer or switch ELECTRONICO (6) allowing that through the frequency counter (7) knowable AT ALL TIMES FREQUENCY SENSOR pIEZOELECTRIC PATRON, THE SENSOR pIEZOELECTRIC TEST AND THE RELATIONSHIP BETWEEN THE TWO fREQUENCIES, turn being this frequency meter (7) ASSISTED a printer (8) that records at all times READINGS OF SUCH frecuencímetro .