JPH0193504U

JPH0193504U -

Info

Publication number: JPH0193504U
Application number: JP18826987U
Authority: JP
Priority date: 1987-12-12
Filing date: 1987-12-12
Publication date: 1989-06-20

Description

[Brief explanation of the drawing]

第１図はこの考案に係るコンクリートの打設高
さ測定装置を示すブロツク接続図、第２図はコン
クリート打設システムの概念図、第３図は超音波
距離測定部分の詳細を示す概念図である。１……超音波発受信部、２……時間／距離演算
部、３……コンクリート打設面、５……モータ、
６……変位変換部、８……制御部、１８……出力
部。 Figure 1 is a block connection diagram showing the concrete placement height measuring device according to this invention, Figure 2 is a conceptual diagram of the concrete placement system, and Figure 3 is a conceptual diagram showing details of the ultrasonic distance measurement part. be. 1...Ultrasonic transmitter/receiver section, 2...Time/distance calculation section, 3...Concrete placement surface, 5...Motor,
6... Displacement conversion section, 8... Control section, 18... Output section.

Claims

[Scope of utility model registration request]

There is an ultrasonic transmitter/receiver suspended from a cable that is sent out by a motor, and the transmitted signal from the transmitter element of this ultrasonic transmitter/receiver is reflected on the concrete placement surface and is transmitted to the ultrasonic transmitter/receiver. a time/distance calculation unit that calculates the time it takes for the ultrasonic wave to reach the receiving element and calculates the distance from the ultrasonic transmitting/receiving unit to the concrete placement surface from this time, and converts the displacement of the rotation amount of the motor into an electrical signal. a displacement converter that outputs the
a control section that controls the amount of rotation of the motor to keep the distance constant based on the output of the displacement conversion section and the output of the time/distance calculation section; A concrete placement height measuring device comprising an output section for recording or displaying the height of the concrete surface.