DEVICE FOR DETERMINING DENSITY OF LEAD-ACID BATTERY ELECTROLYTE SOLUTION Russian patent published in 2023 - IPC G01N9/24 G01R31/36 

FIELD: transport technology.

SUBSTANCE: invention is intended for monitoring the condition and maintenance of starter and power batteries. The essence of the claimed solution is that the device for determining the density of the electrolyte solution of a lead-acid battery, containing a source of alternating voltage, adjustable in frequency and amplitude, with a meter for frequency and magnitude of alternating voltage, additionally contains two sensors with pairs of lead electrodes with electrical leads on the top body panels, located one in the above-electrode volume of the electrolyte, and the other in the bottom, sub-electrode volume of the electrolyte, as well as two calibrated resistors connected in a circuit of pairs of electrodes separately, two alternating voltage amplifiers connected by inputs with resistors, two meters of current and phase shift between current and voltage connected to the outputs of the voltage amplifiers, a comparator connected to the outputs of the current and phase shift meters, while the alternating voltage source is connected through resistors to the terminals of the electrode pairs, to the current and phase shift meters and to the comparator. The technical solution of the proposed invention is aimed at increasing the reliability of determining the density of the electrolyte, taking into account the difference in densities in the upper and bottom regions of the electrolyte, at increasing the speed and reducing the cost of the measurement process.

EFFECT: present invention makes it possible to simultaneously determine a decrease in density in the upper volume of the electrolyte and an increase in density in the bottom layer, which is not considered when using known devices.

1 cl, 1 dwg