Claims
- 1. A device for testing electrical conductors, said conductors having placed thereon an alternating voltage with substantially repetitive phases, comprising, in combination:
- a phase control for monitoring said alternating voltage and responsively providing a phase enable signal for a predetermined segment of said phases of said alternating voltage;
- a voltage sensor, interconnected to said phase control, for measuring said voltage of said electrical conductors and responsively producing a voltage signal;
- a display for receiving said voltage signal and responsively displaying said voltage of said electrical conductors; and
- a power supply receiving said phase enable signal from said phase control and powering said display.
- 2. A testing device as claimed in claim 1 further comprising a steady current source in parallel with said voltage sensor.
- 3. A testing device as claimed in claim 1 wherein said repetitive phases of said alternating voltage vary between 0.degree. and 360.degree. and said predetermined segment of said phases is less than 45.degree..
- 4. A testing device as claimed in claim 1 further comprising a continuity tester for testing continuity of said electrical conductors, said continuity tester including a separate power supply and a separate alarm to indicate continuity of said electrical conductors, said continuity tester being substantially electrically independent of said phase control, voltage sensor, display, and power supply.
- 5. A testing device as claimed in claim 4 further comprising a pair of leads interconnected to said voltage sensor and wherein said voltage sensor measures said voltage when said leads are interconnected to said conductors and wherein said device further comprises display hold means for maintaining said display when said leads are removed from said conductors.
- 6. The device of claim 1, further comprising a tactile transducer activated by said power supply, said phase enable signal supplied to said power supply causing said power supply to activate said tactile transducer during said predetermined segment of said phases of said alternating voltage.
Parent Case Info
This is a divisional of application Ser. No. 08/099,145 filed Jul. 29, 1993, now U.S. Pat. No. 5,477,133.
US Referenced Citations (16)
Divisions (1)
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Number |
Date |
Country |
Parent |
99145 |
Jul 1993 |
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