CN204514504U - A kind of portable delivery temperature caliberating device - Google Patents

Abstract

A portable exhaust gas temperature calibration device, including a box cover, a lock body, a hinge, a box body, a handle, a lower lock body, a digital voltmeter, a test switch, an adjustment resistor 1, a power switch, an adjustment resistor 2 and a test The power supply, the box cover is connected with the box body through the hinge, the upper lock body is set at the positive end of the box cover, the lower lock body is set at the positive end of the box body and used in conjunction with the upper lock body for locking, adjust the resistance one end and test Connect the positive pole of the power supply and the other end to the power switch, one end of the adjustment resistor 2 is connected to the negative pole of the test power supply and the other end is connected to the power switch, the negative pole of the digital voltmeter is connected to the negative pole of the test power supply, and the positive pole is connected to the power switch, and the power switch is connected to the test power supply through the cable. The positive pole of the debugging object is connected, and the negative pole of the test power supply is connected with the negative pole of the testing debugging object through a cable. The device has the advantages of simple structure, convenient operation, low production cost, and easy portability, which meets the requirements for field use. The device can provide a variety of analog temperature modes, and can be continuously adjustable.

Description

A portable exhaust gas temperature calibration device

technical field

The utility model relates to the technical field of measurement and detection, in particular to a portable exhaust temperature calibration device.

Background technique

The engine is the heart of the aircraft and the source of power. The temperature of the exhaust gas at the tail of the engine is a sign of the thrust of the engine. Therefore, the ground calibration and accurate detection of the exhaust temperature of the engine tail are necessary conditions to ensure the normal operation of the engine. At present, the calibration of engine exhaust temperature is done through the entire flight parameter system. The equipment is huge, and only one or three exhaust temperatures can be simply simulated. With the complex development of aircraft and the increasing demand for production, The old equipment can no longer meet the needs.

Utility model content

In order to solve the above technical problems, the utility model provides a portable exhaust gas temperature calibration device, which can provide a variety of simulated temperature modes and can be continuously adjusted.

A portable exhaust gas temperature calibration device, including box cover, lock body, hinge, box body, handle, lower lock body, digital voltmeter, test switch, adjusting resistor 1, power switch, adjusting resistor 2 and test Power supply, the box cover is connected with the box body through the hinge, the upper lock body is set at the positive end of the box cover, the lower lock body is set at the positive end of the box body and used in conjunction with the upper lock body, and the handle is set on the box body , digital voltmeter, test switch, adjusting resistor 1, power switch, adjusting resistor 2 and testing power supply are set on the surface of the box body, one end of adjusting resistor is connected to positive pole of testing power supply and the other end is connected to power switch, adjusting resistor 2 One end is connected to the negative pole of the test power supply and the other end is connected to the power switch. The negative pole of the digital voltmeter is connected to the negative pole of the test power supply. The positive end is connected to the power switch. The power switch is connected to the positive pole of the test object through a cable. Negative connection of the debuggee.

Further, the device also includes a digital voltmeter backup power supply and a backup switch. The negative pole of the digital voltmeter backup power supply is connected to the digital voltmeter negative pole. Voltmeter backup power positive connection.

The beneficial effects obtained by the utility model through the technical means are that the device has a simple structure, is convenient to operate, has low manufacturing cost, and is easy to carry to meet the requirements of field use. The device can provide a variety of analog temperature modes, and can be continuously adjustable.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is a schematic circuit diagram of the utility model;

In the figure, 1. Box cover; 2. Lock body; 3. Hinge; 4. Digital voltmeter; 5. Box body; 6. Spare switch; 7. Test switch; 8. Handle; 9. Down Lock body; 10. Regulating resistor 1; 11. Power switch; 12. Regulating resistor 2; 13. Digital voltmeter backup power supply; 14. Test power supply.

Detailed ways

The principles and features of the utility model are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the utility model, and are not used to limit the scope of the utility model.

A portable exhaust gas temperature calibration device, including a box cover 1, an upper lock body 2, a hinge 3, a box body 5, a handle 8, a lower lock body 9, a digital voltmeter 4, a test switch 7, and an adjustment resistor 10 , power switch 11, adjusting resistor 2 12 and test power supply 14, the lid 1 is connected with the box body 5 through the hinge 3, the upper lock body 2 is arranged on the positive end of the box lid 1, and the lower lock body 9 is arranged on the positive end of the box body 5 The end portion is also used in conjunction with the lock body 2 for locking, the handle 8 is arranged on the box body 5, the digital voltmeter 4, the test switch 7, the adjustment resistor one 10, the power switch 11, the adjustment resistor two 12 and the test The power supply 14 is arranged on the surface of the box body 5, one end of the adjustment resistor 10 is connected to the positive pole of the test power supply 14 and the other end is connected to the power switch 11, one end of the adjustment resistor 12 is connected to the negative pole of the test power supply 14 and the other end is connected to the power switch 11, digital Voltmeter 4 negative terminal is connected with test power supply 14 negative pole and positive terminal is connected with power switch 11, and power switch 11 is connected with the positive pole of test debugging object by cable, and test power supply 14 negative pole is connected with the negative pole of test debugging object by cable.

When the test power supply 14 fails, the device will be unable to work and affect the work progress. In order to ensure the continuity of work, the device also includes a digital voltmeter backup power supply 13 and a backup switch 6, and the digital voltmeter backup power supply 13 negative pole is connected to the digital voltmeter. 4 negative poles of the digital voltmeter are connected to the positive pole and the spare switch 6, and one end of the spare switch 6 is connected to the positive pole of the digital voltmeter 4 and the positive pole of the digital voltmeter standby power supply 13.

The working principle of the device is: connect to the test and debug object (i.e. the engine exhaust temperature system) through a cable, then turn on the power switch 11 to provide the electricity of the test power supply 14 through the voltage value changed after adjusting the resistance one 10 and adjusting the resistance two 12 To test and debug the object, observe the voltage value displayed by the digital voltmeter 4, and adjust the output voltage continuously or intermittently as required to reach the voltage value required for calibrating the engine exhaust system and then convert it into the required exhaust temperature value.

The above-mentioned technical solutions only embody the preferred technical solutions of the technical solutions of the present utility model, and some changes that may be made by those skilled in the art to some parts thereof reflect the principles of the present utility model and belong to the protection scope of the present utility model within.

Claims (2)

1. a portable delivery temperature caliberating device, comprise lid (1), upper lock body (2), hinge (3), box body (5), handle (8) and down lock body (9), described lid (1) is connected with box body (5) by hinge (3), described upper lock body (2) is arranged on the positive end of lid (1), described down lock body (9) is arranged on the positive end of box body (5) and coordinates to lock with upper lock body (2) and uses, described handle (8) is arranged on box body (5), it is characterized in that: described device also comprises digital voltmeter (4), Test Switchboard (7), regulating resistance one (10), power switch (11), regulating resistance two (12) and testing power supply (14), described digital voltmeter (4), Test Switchboard (7), regulating resistance one (10), power switch (11), regulating resistance two (12) and testing power supply (14) are arranged on box body (5) on the surface, described regulating resistance one (10) one end is connected the other end with testing power supply (14) positive pole and is connected with power switch (11), described regulating resistance two (12) one end is connected the other end with testing power supply (14) negative pole and is connected with power switch (11), described digital voltmeter (4) negative pole end is connected positive terminal with testing power supply (14) negative pole and is connected with power switch (11), described power switch (11) is connected by the positive pole of cable with test and debugging object, described testing power supply (14) negative pole is connected by the negative pole of cable with test and debugging object.

2. device according to claim 1, it is characterized in that: described device also comprises digital voltmeter standby power supply (13) and backup circuit breaker (6), described digital voltmeter standby power supply (13) negative pole is connected positive pole with digital voltmeter (4) negative pole and is connected with backup circuit breaker (6), and described backup circuit breaker (6) one end is connected with digital voltmeter standby power supply (13) positive pole with digital voltmeter (4) the positive pole other end.