Tower Clock Terminology Explained
1. GPS: Global Satellite Positioning System, a system for real-time positioning and navigation around the world. The GPS receiver can receive time information accurate to nanoseconds that can be used for timing. It can be used to automatically calibrate the master clock time of the tower clock to ensure that the running time of the tower clock is synchronized with the GPS time.
2. Lighting source
1. LED: Semiconductor light-emitting diode. It has the advantages of high luminous efficiency, long service life (100,000 hours), not easy to break, fast switching speed, high reliability and other advantages that traditional light sources cannot match.
2. LED tube: the light source uses LED as the luminous body, the light is soft and the color is pure. Compared with traditional fluorescent tubes, it has higher light efficiency, more energy saving, longer service life, maintenance-free and more environmentally friendly. It is the most ideal product to replace fluorescent tubes at the current stage. It is the most ideal choice for lighting in the tower clock (the whole surface of the clock is illuminated) light source.
3. Clock face material
1. PC board: PC board is a high-quality board made of polycarbonate as the main component and using co-extrusion technology CO-EXTRUSI. Because its surface is covered with a layer of high-concentration ultraviolet absorber, in addition to its anti-ultraviolet properties, it can maintain long-term weather resistance and never fade. In addition, the PC board also has high light transmittance (up to 99%), impact resistance, resistance to It has the characteristics of high combustion, high energy saving, strong sound insulation, anti-condensation and so on. It is the most commonly used material for the clock plate for lighting in the tower clock (the entire surface of the clock is illuminated).
2. Laminated glass: a safety glass made of two or several layers of glass sheets sandwiched between transparent plastic sheets and bonded by hot pressing. This kind of glass is only cracked but not shattered after greater impact and severe vibration. The product features are transparent, anti-riot, waterproof, anti-ultraviolet, etc., and it is a high-grade material that can be selected for the clock plate for the lighting in the tower clock (the whole surface of the clock is illuminated).
3. Aluminum-plastic panel: that is, aluminum-plastic composite panel, which refers to a 3-layer composite panel with plastic as the core layer and aluminum on both sides, and the surface of the product is covered with a decorative and protective coating or film as the decoration of the product noodle. The characteristics of aluminum composite panel include good weather resistance, high strength, good shock resistance, easy maintenance, and thermal insulation, sound insulation and excellent fire performance. There are many colors to choose from, and it is the most commonly used exterior lighting ( The clock hand and scale part of the clock are illuminated) board material.
4. Fluorocarbon aluminum plate: the aluminum plate is treated by fluorocarbon electrostatic spraying. Fluorocarbon spraying has excellent anti-fading, anti-blooming, anti-corrosion resistance to atmospheric pollution (acid rain, etc.), strong UV resistance, strong crack resistance and can withstand harsh weather environments. It is an excellent material for exterior lighting (the clock hand and scale part of the clock emit light).
4. Timekeeping
1. Loudspeaker: Also known as "horn", it is a transducer device that converts electrical signals into acoustic signals. The advantage is that the sound is loud and the transmission distance is long, but the sound quality is average, and it is a commonly used time-telling tool.
2. Outdoor sound column: The sound column is installed with multiple cone angle speakers in the box. This structure has strong directivity, especially the high frequency directivity is the most prominent, and it also greatly improves the sound quality. Especially suitable for buildings with large echoes, such as churches/temples, etc. The product has the characteristics of restoring the real amplification of music, the sound is clear, the noise is small, and it is more suitable for outdoor all-weather use. It is suitable for occasions with higher requirements on sound quality.
