Timing device for double-contact single-probe oscilloscope

Abstract

The utility model relates to a double-contact single-probe oscilloscope timing device, and belongs to the field of timers. The device comprises a test circuit, a to-be-tested mechanism and an oscilloscope. The test circuit comprises a direct-current power supply and three resistors, the three resistors are respectively marked as R1, R2 and R3, the positive electrode of the direct-current power supply is connected with the resistor R1, the resistor R1 is provided with a contact T1 and a contact T2, and the contact T1 is provided with a contact pin; the mechanism to be tested is set as a single-open double-control switch; the anode of the oscilloscope is connected with the anode of the direct-current power supply, and the cathode of the oscilloscope is connected with the cathode of the power supply; the motion time of the motion mechanism is quantitatively tested, a motion piece is ingeniously connected into a circuit, time testing of the motion mechanism can be completed through a probe of the oscilloscope, the independent waveform of the oscilloscope facilitates reading, meanwhile, manufacturing is convenient, and operation and data reading are simple.

Description

Technical Field

[0001] The utility model belongs to the field of timers, and in particular relates to a double-contact single-probe oscilloscope timing device. Background Art

[0002] The movement time of the motion mechanism from the initial state to the final state has a great influence on the overall performance of the entire system. The movement time of non-intelligent systems cannot be pre-set and controlled by programs. The movement time test of the motion mechanism is the key point and difficulty that affects the function of the entire system.

[0003] At present, the time it takes for a motion mechanism to reach its destination can only be calculated through theoretical simulation, or qualitatively determined through experimental methods to determine whether it can meet the predetermined motion time range. There is currently no quantitative timing method.

[0004] Take the safety and release isolation device of the fuze as an example. The safety and release isolation device is an important part of the fuze. Its function is to fix the pyrotechnics in a safe and isolated position before the predetermined conditions are met. During use, the fuze is stimulated by the environment such as launch and flight. After the predetermined conditions are met, the safety and isolation are released step by step, so that the fuze is in a ready-to-fire state to ensure the reliable function of the fuze. Common isolation devices include a slider driven by a compression column spring and a horizontal rotor driven by a compression torsion spring. The time it takes for the slider or rotor to move into place affects the release performance of the safety and release isolation device. Currently, the commonly used means to determine the movement time are theoretical calculation, dynamic simulation and range test. Theoretical calculation and dynamic simulation cannot fully consider all influencing factors. The range test has a long period of time and high cost, and there is no suitable time measurement method. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The technical problem to be solved by the utility model is how to provide a double-contact single-probe oscilloscope timing device to solve the problem that the time of the existing motion mechanism moving to its position can only be calculated by theoretical simulation and cannot be quantitatively measured.

[0007] (II) Technical solution

[0008] In order to solve the above technical problems, the utility model proposes a double-contact single-probe oscilloscope timing device, comprising: a test circuit, a mechanism to be tested and an oscilloscope;

[0009] The test circuit includes: a DC power supply and three resistors, the three resistors are respectively denoted as R1, R2, and R3.

[0010] The positive electrode of the DC power supply is connected to a resistor R1, the resistor R1 is provided with two contacts T1 and T2, and the contact T1 is provided with a contact pin;

[0011] The mechanism to be tested is set as a single-open double-control switch;

[0012] The positive electrode of the oscilloscope is connected to the positive electrode of the DC power supply, and the negative electrode of the oscilloscope is connected to the negative electrode of the power supply;

[0013] The mechanism to be tested is connected to the T1 contact, and the moving part is connected to the circuit through the contact pin to form a closed loop;

[0014] In the test circuit, R2 and R3 are connected in parallel and then in series with R1, an oscilloscope is connected to the circuit of R2 and R3 in parallel, and the voltage of R2 and R3 in parallel is tested;

[0015] When the contact pin is pulled out, the constraint of the moving part is released, and when it moves to the terminal state, the mechanism to be tested contacts the T2 contact, and the moving part contacts the test circuit T2 contact, forming a closed loop. At this time, the oscilloscope is only connected to the R3 circuit, and the oscilloscope tests the power supply voltage.

[0016] The timing of the moving mechanism in the mechanism to be tested is completed by the oscilloscope through the test circuit.

[0017] Wherein, the contact pin is provided with a limiting structure to constrain the moving parts in the mechanism to be tested to an initial state.

[0018] (III) Beneficial effects

[0019] The utility model provides a double-contact single-probe oscilloscope timing device, which quantitatively tests the movement time of a moving mechanism. The moving parts are cleverly connected to the circuit, and the timing of the moving mechanism can be completed through a probe of the oscilloscope. The separate waveform of the oscilloscope is easy to read, and the manufacturing is convenient, and the operation and data reading are simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the safety state of the centrifugal safety mechanism of the utility model;

[0021] Figure 2 Schematic diagram of the initial state of the utility model

[0022] Figure 3 It is a schematic diagram of the terminal state of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, content and advantages of the utility model clearer, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments.

[0024] This embodiment provides a dual-contact single-probe oscilloscope timing device, including: a test circuit, a mechanism to be tested, and an oscilloscope;

[0025] The test circuit includes: a DC power supply and three resistors, the three resistors are respectively denoted as R1, R2, and R3.

[0026] The positive electrode of the DC power supply is connected to a resistor R1, the resistor R1 is provided with two contacts T1 and T2, and the contact T1 is provided with a contact pin;

[0027] The mechanism to be tested is set as a single-open double-control switch;

[0028] The positive electrode of the oscilloscope is connected to the positive electrode of the DC power supply, and the negative electrode of the oscilloscope is connected to the negative electrode of the power supply;

[0029] The mechanism to be tested is connected to the T1 contact, and the moving part is connected to the circuit through the contact pin to form a closed loop;

[0030] In the test circuit, R2 and R3 are connected in parallel and then in series with R1, an oscilloscope is connected to the circuit of R2 and R3 in parallel, and the voltage of R2 and R3 in parallel is tested;

[0031] When the contact pin is pulled out, the constraint of the moving part is released, and when it moves to the terminal state, the mechanism to be tested contacts the T2 contact, and the moving part contacts the test circuit T2 contact, forming a closed loop. At this time, the oscilloscope is only connected to the R3 circuit, and the oscilloscope tests the power supply voltage.

[0032] The timing of the moving mechanism in the mechanism to be tested is completed by the oscilloscope through the test circuit.

[0033] Wherein, the contact pin is provided with a limiting structure to constrain the moving parts in the mechanism to be tested to an initial state.

[0034] The oscilloscope displays the waveform as Figure 1 The time difference between t3 and t2 is the time interval for the motion mechanism to be tested to move from the initial state to the final state.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A dual-contact single-probe oscilloscope timing device, characterized in that: include: Test circuit, mechanism under test and oscilloscope; The test circuit includes: a DC power supply and three resistors, the three resistors are respectively denoted as R1, R2, and R3. The positive electrode of the DC power supply is connected to a resistor R1, the resistor R1 is provided with two contacts T1 and T2, and the contact T1 is provided with a contact pin; The mechanism to be tested is set as a single-open double-control switch; The positive electrode of the oscilloscope is connected to the positive electrode of the DC power supply, and the negative electrode of the oscilloscope is connected to the negative electrode of the power supply; The mechanism to be tested is connected to the T1 contact, and the moving part is connected to the circuit through the contact pin to form a closed loop; In the test circuit, R2 and R3 are connected in parallel and then in series with R1, an oscilloscope is connected to the circuit of R2 and R3 in parallel, and the voltage of R2 and R3 in parallel is tested; When the contact pin is removed, the restraint of the moving part is released, and when it moves to the terminal state, the mechanism to be tested contacts the T2 contact, and the moving part contacts the test circuit T2 contact, forming a closed loop. At this time, the oscilloscope is only connected to the R3 circuit, and the oscilloscope tests the power supply voltage.

2. The dual-contact single-probe oscilloscope timing device according to claim 1, characterized in that: The oscilloscope is used to measure the timing of the moving mechanism in the mechanism to be measured through the test circuit.

3. The dual-contact single-probe oscilloscope timing device according to claim 1, characterized in that: The contact pin is provided with a limiting structure to constrain the moving parts in the mechanism to be tested to an initial state.

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