The contactless ultrasonic fuel level sensor for tanks of vehicles

The device is intended for measurement of level of fuel in a fuel tank for the purpose of fuel consumption control. The basic measuring element is OUSE - the radiator with the built-in temperature sensor established directly on an external (ground) surface of a fuel tank. The data obtained from a radiator are stored and processed in the control block. The device allows to measure the level of diesel, petrol fuel, and also liquid environments, depending on the software of the control block.

"UZI-0.8" can work as a part of the complex system of collecting and information transfer equipped with the send-receive GSM/GPS/GLONASS terminal. For this purpose the device has a number of analog and digital interfaces. The type of the used interface is defined by opportunities of the send-receive terminal. If the terminal provides a possibility of connection of external measuring devices on the analog interface, i.e. has sobstvennyeanalogo-digitizers, then it is possible to use an analog output of the device. If the terminal provides connection of external measuring devices on a digital channel, then it is possible to use a digital (frequency) output of the device. At the same time the fuels given about level will be transmitted through the EIA 485 or RS 232 interface according to the specialized protocol (FMS).

At the same time the device can independently work as "a black box", accumulating data on changes of level of fuel in a tank within not less than 30 days. At the same time at a production phase unique identification number is assigned to each device that allows to identify easily data when using several devices on one vehicle (the multitank HARDWARE.

In non-volatile memory of the sensor the following data register:

• current date
• current time
• fuel level in a tank of mm or volume in liters
• condition of ignition
• temperature
• ID sensor
• code of a condition of system

For preservation of values of date and time in the device there is a food battery (service life not less than 3 years).