Multi channel Signal Telemetry System for Coal Mines with Carrier Wave Transmitted by Telephone cable

ZHONG Dao-chang

Article Contents

Article Navigation > Journal of Mine Automation > 2000 > 26(1): 20-21

ZHONG Dao-chang. Multi channel Signal Telemetry System for Coal Mines with Carrier Wave Transmitted by Telephone cable[J]. Industry and Mine Automation, 2000, 26(1): 20-21.

Citation:

ZHONG Dao-chang. Multi channel Signal Telemetry System for Coal Mines with Carrier Wave Transmitted by Telephone cable[J]. Industry and Mine Automation, 2000, 26(1): 20-21.

ZHONG Dao-chang. Multi channel Signal Telemetry System for Coal Mines with Carrier Wave Transmitted by Telephone cable[J]. Industry and Mine Automation, 2000, 26(1): 20-21.

Citation:

ZHONG Dao-chang. Multi channel Signal Telemetry System for Coal Mines with Carrier Wave Transmitted by Telephone cable[J]. Industry and Mine Automation, 2000, 26(1): 20-21.

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Multi channel Signal Telemetry System for Coal Mines with Carrier Wave Transmitted by Telephone cable

ZHONG Dao-chang

Shandong Mining Institute, Shangdong Tai’an 271019

Publish Date: 2000-02-10

Abstract

Abstract

Here introduced is the circuit composition of coal mine multi channel signal telemetry system with carrier wave transmitted through telephone line and precise V/F conversion circuit designed with LM331 and TL082. Problems encountered in system commissioning and execution and the measures adopted are analyzed.
- coal mine,
- signal,
- telemetering,
- system,
- carrier wave