CN108120854A - A kind of inertial platform electric signal method for automatic measurement - Google Patents

Abstract

An automatic measurement method for an inertial platform electrical signal, comprising the following steps: Step 1: Cascading the rows of the matrix switch A3 and the matrix switch B5 through the lead 4, and transmitting the corresponding signal source and the received signal through the conduction of the corresponding column and row test signal. Step 2: The test interface of the device under test 1 is connected to the matrix switch 3 through the lead wire 2, and the quartz watch output circuit, the motor power supply circuit, the temperature control circuit, the moment adding circuit, the servo circuit, and the gyro accelerometer circuit in the device under test 1 are connected to each other. 1. The test signal interface of the attitude processing circuit is connected to the corresponding column of the matrix switch 3; Step 3: measure the signal to be tested. Step 4: The measuring device 7 measures the signal under test to obtain the measurement data of the item under test; finally, the automatic measurement of the electrical signal of the inertial platform is realized.

Description

A method for automatic measurement of electrical signals of an inertial platform

technical field

The technology belongs to the field of automatic measurement, and specifically relates to an automatic measurement method for an inertial platform electric signal.

Background technique

There is no patent published yet regarding the automatic measurement method of the inertial platform electrical signal using the matrix switch as the transfer relay of the electrical signal under test, the test instrument and the signal source.

The electrical signal of the inertial platform is composed of many test items. The specific test parameters of the electrical signal of different inertial platforms are not exactly the same, but the test items are generally the same, which generally include the output circuit of the quartz watch, the motor power supply circuit, the temperature control circuit, the torque circuit, servo circuit, gyro accelerometer circuit, attitude processing circuit.

At present, the measurement of the electrical signals of the inertial platform is carried out by means of test instruments, which are manually tested one by one. It takes a long time to test all the test items once, which reduces the test efficiency, and there are human operations. error.

Contents of the invention

The object of the present invention is to provide an automatic measurement method for the electrical signal of an inertial platform, which overcomes the shortcomings of low test efficiency and error-prone in the past.

The technical scheme of the present invention is as follows: a method for automatically measuring electrical signals of an inertial platform, comprising the following steps:

Step 1: Cascade the rows of matrix switch A and matrix switch B through lead B, and transmit the corresponding signal source and measured signal through the conduction of the corresponding column and row;

Step 2: The test interface of the device under test is connected to the matrix switch A through the lead wire A, and the test signal interface in the device under test is connected to the corresponding column of the matrix switch A, and the device under test provides the signal of the corresponding circuit under test through this interface. The measured signal and the signal source provided by the receiving measuring equipment;

Step 3: The test interface of the measuring device is connected to the matrix switch B through lead C, and the measuring device provides the signal source required by the device under test, and measures the signal under test;

Step 4: The measurement equipment transmits data through the data line and the equipment under test. The measurement equipment controls the on-off of the matrix switch A and the matrix switch B, connects the corresponding signal source and the signal under test, and measures each test item in sequence ; The measurement equipment measures the measured signal to obtain the measurement data of the measured item; and finally realizes the automatic measurement of the inertial platform electrical signal.

Described measuring equipment comprises high-precision digital multimeter, high-precision frequency meter and AD board and constant current source, angle analog signal and standard resistance, in described step 3, high-precision digital multimeter, high-precision frequency meter in measuring equipment And AD board and constant current source, angle analog signal and standard resistance are connected to the corresponding column of matrix switch B.

The measuring device further includes a controller, and in step 4, the measuring device controls the on-off of the matrix switch A and the matrix switch B through the controller.

The device under test includes a quartz watch, its output circuit, motor power supply circuit, temperature control circuit, torque adding circuit, servo circuit, gyro accelerometer circuit, and test signals of the attitude processing circuit.

Remarkable effect of the present invention is:

(1) The automatic measurement of the electrical signals of various circuits in the inertial platform can be realized by controlling the on-off of the matrix switch to connect the corresponding signals through the program.

(2) Automatic measurement can improve test efficiency, shorten measurement time, and reduce test personnel.

(3) The automatic measurement of the instrument avoids the operation error of the human test.

Description of drawings

Fig. 1 is a schematic diagram of an automatic measurement method for an inertial platform electric signal according to the present invention

In the figure: the device under test 1, the lead wire A2, the matrix switch A3, the lead wire B4, the matrix switch B5, the lead wire C6, the measuring device 7, and the data line 8.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

A method for automatically measuring electrical signals of an inertial platform, comprising the following steps:

Step 1: Cascading the rows of the matrix switch A3 and the matrix switch B5 through the lead wire B4, and transmitting the corresponding signal source and the signal to be tested through the conduction of the corresponding column and row.

Step 2: The test interface of the device under test 1 is connected with the matrix switch A3 through the lead wire A2, and the quartz watch output circuit, the motor power supply circuit, the temperature control circuit, the moment adding circuit, the servo circuit, and the gyro accelerometer circuit in the device under test 1 are connected to each other. 1. The test signal interface of the attitude processing circuit is connected to the corresponding column of the matrix switch A3, and the device under test 1 provides the measured signal of the corresponding circuit under test and receives the signal source provided by the measuring device 7 through this interface;

Step 3: The test interface of the measuring device 7 is connected to the matrix switch B5 through the lead wire C6. The measuring device 7 includes a high-precision digital multimeter, a high-precision frequency counter, an AD board and a constant current source, an angle analog signal and a standard resistance, and will measure The high-precision digital multimeter, high-precision frequency counter, AD board, constant current source, angle analog signal and standard resistance in the device 7 are connected to the corresponding column of the matrix switch B5, and the measuring device 7 provides the signal source required by the device under test 1 , and measure the signal under test.

Step 4: The measuring device 7 also includes a controller. The measuring device 7 performs data transmission with the device under test 1 through the data line 8. The measuring device 7 controls the on-off of the matrix switch A3 and the matrix switch B5 through the controller, and connects the corresponding The signal source and the signal under test are used to measure each test item in sequence; the measuring device 7 measures the signal under test to obtain the measurement data of the item under test; finally, the automatic measurement of the electrical signal of the inertial platform is realized.

Claims (4)

1. a kind of inertial platform electric signal method for automatic measurement, it is characterised in that：Comprise the following steps：

Step 1：The row of matrix switch A3 and matrix switch B5 by lead B4 is cascaded, is led by corresponding columns and rows Lead to transfer corresponding signal source and measured signal；

Step 2：The test interface of equipment under test 1 is connected by lead A2 with matrix switch A3, by the survey in equipment under test 1 Trial signal interface is connected to matrix switch A3 and arranges accordingly, and equipment under test 1 provides the tested of corresponding circuit-under-test by this interface Signal and the signal source that the offer of measuring apparatus 7 is provided；

Step 3：The test interface of measuring apparatus 7 is connected by lead C6 with matrix switch B5, and measuring apparatus 7 provides tested The signal source that equipment 1 needs, and measured signal is measured；

Step 4：Measuring apparatus 7 carries out data transfer by data cable 8 and equipment under test 1, and measuring apparatus 7 is to matrix switch A3 It is controlled with the break-make of matrix switch B5, connects corresponding signal source and measured signal, each test item is surveyed successively Amount；Measuring apparatus 7 measures measured signal the measurement data for drawing tested item；Finally realize oneself of inertial platform electric signal Dynamic measurement.

2. a kind of theodolite calibrating installation according to claim 1, it is characterised in that：The measuring apparatus 7 includes high-precision Spend digital multimeter, high-precision frequency meter and AD boards and constant-current source, angle analog signal and measuring resistance, the step 3 In, by high accuracy number universal meter, high-precision frequency meter and the AD boards in measuring apparatus 7 and constant-current source, angle simulation letter Number and measuring resistance be connected to matrix switch B5 accordingly row on.

3. a kind of theodolite calibrating installation according to claim 1, it is characterised in that：The measuring apparatus 7 further includes control Device processed, in the step 4, measuring apparatus 7 controls matrix switch A3 and the break-make of matrix switch B5 by controller.

4. a kind of theodolite calibrating installation according to claim 1, it is characterised in that：There is quartz in the equipment under test Table, output circuit, motor power circuit, temperature control circuit plus square circuit, servo circuit, gyroaccelerometer circuit, at posture Manage the test signal of circuit.