DILUTION TUNNEL INTERNAL AQUEOUS CONDENSATION MONITORING SYSTEM AND METHOD FOR VEHICLE EMISSION TESTS

The present invention provides a dilution tunnel internal aqueous condensation monitoring device (40) configured for a vehicle emission test system, wherein the dilution tunnel (70) has an inlet end and an outlet end, the condensate monitoring device comprises: a first temperature sensor (41) and a humidity sensor (45) positioned at the outlet end; and a computing device configured to receive a temperature from the first temperature sensor and a humidity reading from the humidity sensor and calculate a dew point temperature of moisture in the dilution tunnel. In addition, the present invention also provides a vehicle emission test system including the above device and a method for monitoring and controlling aqueous condensation in a dilution tunnel. By using the technical solutions of the invention, the situation of the aqueous condensation in the dilution tunnel can be monitored, and the modification and upgrade of dilution systems of existing emission laboratories can be adapted to meet relevant regulatory requirements for vehicle emission tests.