# US 7,613,963 B1 · Wireless method and apparatus for testing armament circuits

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- Number: US 7,613,963 B1
- Document ID: US7613963B1
- Status: Granted
- Kind: B1
- Application number: 11/311,831
- Filed: 2005-12-19
- Granted: 2009-11-03
- Earliest claimed: 2004-12-20
- Assignees: Williams-Pyro, Pnc.
- Inventors: Chris D. Pylant; Andrew W. Stell; John D. Wetters
- Web page: https://patentgrep.com/patent/US7613963B1

## CPC

- G01R 15/26: using modulation of waves other than light, e.g. radio or acoustic waves
- B64D 1/04: the articles being explosive, e.g. bombs
- F41G 7/001: {Devices or systems for testing or checking}
- F42C 21/00: Checking fuzes; Testing fuzes
- G01R 31/005: {Testing of electric installations on transport means}
- G01R 31/2829: {Testing of circuits in sensor or actuator systems (testing of apparatus for measuring electric or magnetic variables G01R35/00; testing of indicating or recording apparatus G01D; in airbag systems B60R21/0173; checking gas analysers G01N33/007; monitoring or fail-safe circuits for electromagnets H01F7/1844)}
- G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12)
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- F41G: WEAPON SIGHTS; AIMING (optical aspects thereof G02B)
- F42C: AMMUNITION FUZES (blasting cartridge initiators F42B3/10; chemical aspects C06C); ARMING OR SAFETY MEANS THEREFOR (filling fuzes F42B33/02; fitting or extracting primers in or from fuzes F42B33/04; containers for fuzes F42B39/30)

## Abstract

The testing apparatus of the present invention provides a self-contained test module that connects to the weapons firing circuit on the weapons platform. This test module communicates with a data collector and controller that is carried by a technician or operator. The communication link between the test module and the data collector and controller is wireless so that the technician can move about without interference from the cable. The test module, which contains a digital voltage detector, is more accurate than prior analog voltage detectors. The test module connects to different connectors, allowing for a reduction of equipment needed in the testing apparatus and providing a significant savings in weight. The data collector and controller stores test data of a particular circuit over a period of time and performs analysis on that test data to identify upcoming or potential problems so that repair can be made before operational readiness is compromised by a circuit failure.

## Claims

### Claim 1

A light weight portable system for multi-testing of an armament circuit, comprising:
at least one connector, the connector structured and arranged to electrically connect to the armament circuit;
a test module coupled to the connector, the test module comprising a testing circuit, the testing circuit testing the armament circuit when the connector is connected to the armament circuit on a first end and connected to the testing circuit on a second end, the testing module comprising a controller and a first communications circuit;
a data collector and controller comprising a second communications circuit, the first and second communications circuits communicating over a wireless link, the data collector and controller sending test instructions to the test module over the link and the test module sending test data from the armament circuit over the link to the data collector and controller; and
wherein, the data collector and controller is a portable handheld device.

### Claim 2 (depends on 1)

The apparatus of claim 1 wherein the testing module comprises at least two testing circuits, wherein the at least two testing circuits comprise a first digital testing circuit that tests for stray voltages and a second testing circuit that tests for sufficient firing current.

### Claim 3 (depends on 2)

The apparatus of claim 2 wherein:
the data collector and controller sends test instructions over the wireless link for selection of one of the at least two testing circuits, the testing circuit that tests for sufficient firing current.

### Claim 4 (depends on 3)

The apparatus of claim 3 wherein the data collector and controller prompts a technician to exercise the armament circuit during the operation of the testing circuit.

### Claim 5 (depends on 1)

The apparatus of claim 1 wherein the testing module comprises a circuit that tests for continuity of the armament circuit and a circuit that tests for stray voltage.

### Claim 6 (depends on 1)

The apparatus of claim 1, further comprising:
at least two connectors, with each connector having a different first end that connects to a different armament circuit and a same second end that connects to the test module.

### Claim 7 (depends on 1)

The apparatus of claim 1 wherein the data collector and controller determines if the armament circuit passes or fails the testing by comparing the test data to stored testing values.

### Claim 8 (depends on 1)

The apparatus of claim 1 wherein the data collector and controller determines trending of the armament circuit by comparing the test data to historical test data for the same armament circuit and if the test results are within a predetermined range of test results provides prompts to a technician to take corrective action.

### Claim 9

A method of testing an armament circuit, comprising the steps of:
providing a connector that can electrically couple to the armament circuit and coupling a first end of the connector to the armament circuit;
connecting a test module to a second end of the connector;
establishing a wireless communications link between the test module and a handheld data collector and controller;
climbing into a cockpit associated with the armament circuit and bringing the handheld data collector and controller into the cockpit;
receiving instructions from a display on the handheld data collector and controller and exercising the armament circuit from within the cockpit, accordingly;
sending an instruction from the handheld data collector and controller over the link to the test module to test the armament circuit;
testing the armament circuit with the test module;
providing results of the test to the data collector and controller over the link.

### Claim 10 (depends on 9)

The method of claim 9, wherein the step of testing the armament circuit further comprises the step of de-energizing the armament circuit and testing for stray voltages.

### Claim 11 (depends on 9)

The method of claim 9, wherein the step of testing the armament circuit further comprises the step of testing for the presence of voltage.

### Claim 12 (depends on 9)

The method of claim 9, wherein the step of testing the armament circuit further comprises the step of testing for sufficient firing current.

### Claim 13 (depends on 9)

The method of claim 9, wherein the step of testing the armament circuit further comprises the step of de-energizing the armament circuit and testing for continuity of the armament circuit.

### Claim 14 (depends on 9)

The method of claim 9, further comprising the step of determining trending of the armament circuit by comparing the test data to historical test data from the same armament circuit and if the test results are within a predetermined range of test results then providing a prompt to a technician to take corrective action.

### Claim 15 (depends on 9)

The method of claim 9, further comprising:
testing a continuity across the connector between the testing module and the armament circuit.
