US 12,092,651 B2
Hydrometer device
Volodymyr Bihday, Lviv (UA); Oleg Kapshii, Lviv (UA); Mykhaylo Krekhovetskyy, Lviv (UA); Andriy Maharyta, Lviv (UA); and Vasyl Mandziy, Lviv (UA)
Assigned to Cypress Semiconductor Corporation, San Jose, CA (US)
Filed by Cypress Semiconductor Corporation, San Jose, CA (US)
Filed on Apr. 8, 2022, as Appl. No. 17/716,644.
Prior Publication US 2023/0324269 A1, Oct. 12, 2023
Int. Cl. G01N 9/14 (2006.01); G01N 9/12 (2006.01); G01N 9/18 (2006.01); G01N 9/36 (2006.01)
CPC G01N 9/14 (2013.01) [G01N 9/12 (2013.01); G01N 9/18 (2013.01); G01N 9/36 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A hydrometer device, comprising:
a floating waterproof device container;
a liquid level sensor positioned in the device container to sense an immersion level of the device container when the device container is floating in a container of liquid;
a conversion circuit positioned in the device container to convert the sensed immersion level to a digital value; and
a controller positioned in the device container to determine a liquid density value for the liquid based on the digital value,
wherein the controller is to determine a liquid classification for the liquid based on the digital value, the liquid classification comprising a type of the liquid, and
wherein the controller is to determine the liquid classification using a lookup table that associates liquid density values or ranges with types of liquids comprising gasoline, diesel fuel, water/summer windscreen washer fluid, winter windscreen washer fluid, winter washer concentrate, and diesel exhaust fluid.