To date, the iss.s of selecting the optimal parameters of input circuits have not been given sufficient attention in the development of pulsed ultrasonic equipment and, in particular, ultrasonic locators used in mining. When designing input circuits are usually used known from general radio engineering calculation methods that do not take into account the specifics of ultrasonic devices.

When applying sounding equipment in surveying work naturally arises the question of its accuracy and, therefore, the possibility of using it to solve specific engineering problems. At the present time - in the period of development and formation of sounding method of measurements in surveying - this issue is of particular relevance.